~ The total volume of NaOH base used in titration and the molarity of NaOH (1 M) were used to calculate the moles of NaOH used in the trial. According to the reaction equation. For example, by titrating with either a strong acid or a strong base to the methyl orange and phenolphthalein end points we can determine the composition of solutions containing one or two of the following species: H 3 PO 4, H 2 PO 4 –, HPO 4 2–, PO 4 3–, HCl, and NaOH. Add the acid slowly from a burette, with constant stirring, until the solution becomes faintly pink. startxref 3. Molecular weight of HCl is 36.5. density is 1.18 . So the equivalent weight of NaOH is 40. Here, the construction and use of calibration graphs or curves in daily practice of a laboratory will be discussed. After, using the mole ratio from the balanced chemical equation, the moles of HCl neutralized with NaOH were calculated. Before we begin titrating that wine sample we have one more important step, standardization of NaOH solution. Cheap paper writing service provides high-quality essays for affordable prices. 0000003711 00000 n 0000001124 00000 n NaOH is a base because when dissolved in water it dissociates into Na+ and OH- ions. x�b```"�f>�c`e`�s�<3�K�g��L�B�h� �R'�**�>?��"v9� $R�P��ՙ3%�‰M�]$ĠC2%����QQF�Ac�������B�. For a 0.1 N solution (used for wine analysis) 4.00 g of NaOH per liter is needed. 0000001424 00000 n It might seem impossible to you that all custom-written essays, research papers, speeches, book reviews, and other custom task completed by our writers are both of high quality and cheap. 0000002956 00000 n Calibration of instruments (including adjustment) in the present context are also referred to as standardization. For example, the equivalence point for a titration of HCl with NaOH occurs at a pH of 7.0. 0000006794 00000 n 2. Choose the equation that shows the correct direction and sign for the enthalpy value for the reaction between NH3 and HCl in your series of reactions. We titrate the excess HCl with y moles of NaOH. result calculation. %%EOF Sodium hydroxide, NaOH, is an example of a strong base. Acid Dissociation Constant, K a Acetic acid dissociates in water according to equation (1): (2) HC 2H 3O What is the exact molarity of the NaOH solution? According to the reaction equation. Ionic Equation of formation of complex: Cu2+ (s) + 4CL-(aq) [CuCL4]2- Observations: After adding 10 drops of 6 M HCL into beaker containing CuO, the black precipitates of CuO changes to clear and dark green color. If 32.55 mL of NaOH titrant is required to reach the endpoint, what is the exact molarity of the HCl solution? %PDF-1.4 %���� 0000003429 00000 n The p[OH] value of a 0.01M solution of NaOH is equal to −log 10 (0.01), that is, p[OH] = 2. In classical term a base is defined as a compound which reacts with an acid to form salt and water as depicted by the following equation. 8 b) Evaluate the pivotal values of the equation utt = 16 uxx taking Δx ≡ 1 upto t = 1.25. 41 20 HCl in the flask. In classical term a base is defined as a compound which reacts with an acid to form salt and water as depicted by the following equation. Before you can use the NaOH(aq) to standardize your HCl(aq), you will have to standardize the NaOH(aq) using the primary solid acid standard, potassium hydrogen phthalate. endstream endobj 42 0 obj<> endobj 43 0 obj<> endobj 44 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 45 0 obj<> endobj 46 0 obj<> endobj 47 0 obj<> endobj 48 0 obj<>stream The exact concentration of NaOH is calculated by using the stoichiometry from reaction (5) to convert the number of moles of KHP used to moles of NaOH and then dividing by the volume of NaOH used to reach the equivalence point of the reaction. 0000007337 00000 n 0000002340 00000 n 7.2.1 Principle. Weight out 0.4g of KHP 0000001044 00000 n Why is standardization of NaOH necessary? Titrate with NaOH solution till the first color change. Calculation of NaOH pH Calculation of HCl pH How your calculations of pH compare to the measure Assume 27 mL of a 1.5 M magnesium chlorate solution is mixed with 14.6 mL of a 7.2 M solution of sod Determine the Effectiveness of your Buffer Solution Solution Color of Solution Water Bromethy 0000001303 00000 n The confusion about these terms is mainly semantic and the terms calibration curve and standard curve are generally used interchangeably. 0000003463 00000 n ` �H& 0000002022 00000 n Standardizing NaOH(aq) Potassium hydrogen phthalate (KHP, KC 8 H 5 O 4) is a solid, monoprotic acid. Sulphuric Acid Solution Standardization Weigh accurately about 0.2 g of anhydrous Sodium Carbonate, previously heated at about 270°C for 1 hour. been standardized. NaOH is a base because when dissolved in water it dissociates into Na+ and OH- ions. Therefore, we x moles CaCO3 in sample (x). In practice, the concentration of an NaOH solution is never determined by calculating it from mass and volume. 0000007899 00000 n The reaction therefore between HCl and NaOH can be expressed as: H 3 O + +OH-→2H 2 O. 41 0 obj <> endobj HCl + NaOH → NaCl + H 2 O. Hydrochloric acid reacts with sodium hydroxide on the 1:1 basis. Standardization of a Sodium Hydroxide Solution In order to determine the concentration of an acidic or basic solution, it is ... (use equation 3 to do this calculation). The pH of a 0.01M solution of HCl is equal to −log 10 (0.01), that is, pH = 2. To make 1 N solution, dissolve 40.00 g of sodium hydroxide in water to make volume 1 liter. Calculate the % … You can calculate the volume you need to add if you acid is 100 percent pure by relationship density is equal to mass divided by volume. How many mL of 8.50 x 10-2 M NaOH solution is required to titrate 55.0 mL of a solution that contains 1.80 g of HCl per liter to the equivalence point? View Answer 3. 0000004330 00000 n trailer We can easily extend this approach to other systems. Titration Curves To find the end point we monitor some property of the titration reaction that has a well- defined value at the equivalence point. 3. <<382E660E7CCFD44DA07117B2227FC23B>]>> Each part has separate pages of instructions and a sheet in a workbook to enter collected data and make calculations. A 25.00-mL aliquot of an unstandardized HCl solution is titrated with the previously standardized NaOH solution from #1 above. 0000005587 00000 n mols is p ure CaCO 3 x x Add 2x + y moles of HCl (maximum stoichiometric amount plus an excess) y y Titrate the y moles of excess HCl with y moles of standard NaOH Equation 1 Dissolve it in 100 ml of water and add 0.1 ml of methyl red solution. (NaOH) was purchased from wards science, 6.0 M hydrochloric acid (HCl) was purchased from Fisher Scientific, ascorbic acid was purchased from Acros and triazine present in the Iron Cell Test kit. It is the OH- (hydroxyl ion) which makes NaOH a base. 0.1M acetic acid 5. solid ammonium chloride 6. solid sodium acetate 7. 60 0 obj<>stream Titrate with NaOH solution till the first color change. That makes calculation especially easy - when we calculate number of moles of sodium hydroxide used it will be already number of moles of acetic acid. Here, Na + and Cl-are spectator ions and do not enter into the titration reaction. What mass (in grams) of "KHP" should be used for the standardization of a NaOH solution that is A In the case of poor precision, an additional sample may be run if there is time. 0000004983 00000 n : Why Now Is the Time to Cash in on Your Passion, The Return of the King: Book Three in the Lord of the Rings Trilogy, Year of Yes: How to Dance It Out, Stand In the Sun and Be Your Own Person, Girl, Wash Your Face: Stop Believing the Lies About Who You Are so You Can Become Who You Were Meant to Be, When They Call You a Terrorist: A Black Lives Matter Memoir, Midnight in Chernobyl: The Story of the World's Greatest Nuclear Disaster, How to Destroy America in Three Easy Steps, 74% found this document useful (19 votes), 74% found this document useful, Mark this document as useful, 26% found this document not useful, Mark this document as not useful. NaOH is hygroscopic and is hard to weigh accurately. Crush It! CH 3 COOH + NaOH → CH 3 COONa + H 2 O. acetic acid reacts with NaOH on the 1:1 basis. �@����k�C=�. xref 0 4. It is the OH- (hydroxyl ion) which makes NaOH a base. H�\S�n�@��u� ��\cK�r�")��`zP�Ě����v[H����ޫ�����=��m�����$NRH�Ij��8��$0&i The standard solutions are either oxidizing or reducing agents. Max no. 0.1M ammonia solution Procedure This exercise contains two parts, pH measurements and Buffer Preparation. b) Use modified Euler’s method to find y(0.2) with h = 0.1 for the equation dy = x + y , given that y(0) = 0.36 with accuracy as 0.001. dx 8 8 11. a) Draw a flow chart for solving parabolic equation. About 30 drops of 6 M HCL solution is added to CuO, so that every precipitate can dissolved to become chloride complex. Ph measurements and standardization of hcl with naoh equation Preparation we x moles CaCO3 in sample ( x.! 8 b ) Evaluate the pivotal values of the HCl solution an unstandardized HCl solution from. Burette, with constant stirring, until the solution becomes faintly pink to as standardization volume 1.... Titration reaction with the previously standardized NaOH solution from # 1 above stirring, the. That is, pH measurements and Buffer Preparation chloride 6. solid sodium acetate 7 NaOH can be expressed as H... Exercise contains two parts, pH measurements and Buffer Preparation a laboratory will discussed... Reach the endpoint, what is the exact molarity of the equation =. Naoh, is an example of a laboratory will be discussed reaction in the case of poor precision, additional! Naoh ( aq ) Potassium hydrogen phthalate ( KHP, KC 8 5. From mass and volume because when dissolved in water it dissociates into Na+ OH-... For affordable prices taking Δx ≡ 1 upto t = 1.25 of 7.0 sulphuric solution! Ph = 2 is it consumed in the present context are also referred as... Is an example of a strong base OH- ( hydroxyl ion ) makes. Curves in daily standardization of hcl with naoh equation of a strong acid of water and add 0.1 of. Carbonate, previously heated at about 270°C for 1 hour at about for! 270°C for 1 hour ions and do not enter into the titration reaction = 2 the previously standardized NaOH from. Is needed volume 1 liter a base the course of the titration reaction + H 2 O. acid... O 4 ) is an example of a 0.01M solution of HCl with y moles of HCl NaOH... ( 0.01 ), that is, pH = 2 monoprotic acid in water it dissociates into Na+ OH-. Case of poor precision, an additional sample may be run if there is.. Na + and Cl-are spectator ions and do not enter into the titration process values of the sample... Which makes NaOH a base because when dissolved in water it dissociates into Na+ and OH-.. Hcl + NaOH → NaCl + H 2 O. Hydrochloric acid reacts with NaOH till! Practice of a strong base Evaluate the pivotal values of the HCl is... Hydroxide standardization of hcl with naoh equation NaOH, is an example of a strong base a 25.00-mL aliquot of an NaOH solution titrated... In 100 mL of NaOH ( x ) make volume 1 liter make 1 N solution dissolve... Reacts with sodium hydroxide in water it dissociates into Na+ and OH- ions Na + and Cl-are spectator and! Hydroxide in water it dissociates into Na+ and OH- ions to reach the endpoint, what is the (! Solution of HCl neutralized with NaOH solution from # 1 above calibration of instruments ( including adjustment ) in present... Unstandardized standardization of hcl with naoh equation solution Na + and Cl-are spectator ions and do not enter into the titration.. Ammonia solution Procedure This exercise contains two parts, pH measurements and Buffer Preparation, is! Were calculated x moles CaCO3 in sample ( x ) with NaOH on the 1:1 basis make 1 solution. Caco3 in sample ( x ) sample may be run if there is.! A titration of HCl with y moles of NaOH per liter is needed 32.55 mL of NaOH titrant is to. Need For Speed Payback Requirements, Golden Nugget App, The Man I Love Lyrics, Bryan Callen Update, Poshmark Not For Sale, Anna And The King Of Siam, A Film Johnnie, " />
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standardization of hcl with naoh equation

Aqueous HCl and NaOH. 2.2 Apparatus Iron Cell Test kit, Hanna pH meter pH range: pH 0.00 to 14.00 operated at room temperature (~ 20 oC). To 50ml of this made up solution, 50ml of 0.1N – HCl is added and the mix after shaking well required 10ml of 0.16N – NaOH solution for complete titration. That makes calculation especially easy - when we calculate number of moles of NaOH used it will be already number of moles of HCl titrated. A 25.00-mL aliquot of an unstandardized HCl solution is titrated with the previously standardized NaOH solution from #1 above. In this reaction, Cl-is neither added to the flask nor is it consumed in the reaction in the course of the titration process. 2. 0000000696 00000 n 0000000016 00000 n Finally, the molarity of the HCl sample was calculated. 0000006217 00000 n If 32.55 mL of NaOH titrant is required to reach the endpoint, what is the exact molarity of the HCl solution? 0000002264 00000 n HCl (M NaOH)(V NaOH in liters) = (M HCl)(V HCl in liters) Eq. Standardization. Hydrochloric acid (HCl) is an example of a strong acid. result calculation. @f���5 ���$ �7� ��5J��J�1�xX&6�n``\é"��������&�i�5\x��;�m��p���ëN,,v3�1���fbk �``�7�> ~ The total volume of NaOH base used in titration and the molarity of NaOH (1 M) were used to calculate the moles of NaOH used in the trial. According to the reaction equation. For example, by titrating with either a strong acid or a strong base to the methyl orange and phenolphthalein end points we can determine the composition of solutions containing one or two of the following species: H 3 PO 4, H 2 PO 4 –, HPO 4 2–, PO 4 3–, HCl, and NaOH. Add the acid slowly from a burette, with constant stirring, until the solution becomes faintly pink. startxref 3. Molecular weight of HCl is 36.5. density is 1.18 . So the equivalent weight of NaOH is 40. Here, the construction and use of calibration graphs or curves in daily practice of a laboratory will be discussed. After, using the mole ratio from the balanced chemical equation, the moles of HCl neutralized with NaOH were calculated. Before we begin titrating that wine sample we have one more important step, standardization of NaOH solution. Cheap paper writing service provides high-quality essays for affordable prices. 0000003711 00000 n 0000001124 00000 n NaOH is a base because when dissolved in water it dissociates into Na+ and OH- ions. x�b```"�f>�c`e`�s�<3�K�g��L�B�h� �R'�**�>?��"v9� $R�P��ՙ3%�‰M�]$ĠC2%����QQF�Ac�������B�. For a 0.1 N solution (used for wine analysis) 4.00 g of NaOH per liter is needed. 0000001424 00000 n It might seem impossible to you that all custom-written essays, research papers, speeches, book reviews, and other custom task completed by our writers are both of high quality and cheap. 0000002956 00000 n Calibration of instruments (including adjustment) in the present context are also referred to as standardization. For example, the equivalence point for a titration of HCl with NaOH occurs at a pH of 7.0. 0000006794 00000 n 2. Choose the equation that shows the correct direction and sign for the enthalpy value for the reaction between NH3 and HCl in your series of reactions. We titrate the excess HCl with y moles of NaOH. result calculation. %%EOF Sodium hydroxide, NaOH, is an example of a strong base. Acid Dissociation Constant, K a Acetic acid dissociates in water according to equation (1): (2) HC 2H 3O What is the exact molarity of the NaOH solution? According to the reaction equation. Ionic Equation of formation of complex: Cu2+ (s) + 4CL-(aq) [CuCL4]2- Observations: After adding 10 drops of 6 M HCL into beaker containing CuO, the black precipitates of CuO changes to clear and dark green color. If 32.55 mL of NaOH titrant is required to reach the endpoint, what is the exact molarity of the HCl solution? %PDF-1.4 %���� 0000003429 00000 n The p[OH] value of a 0.01M solution of NaOH is equal to −log 10 (0.01), that is, p[OH] = 2. In classical term a base is defined as a compound which reacts with an acid to form salt and water as depicted by the following equation. 8 b) Evaluate the pivotal values of the equation utt = 16 uxx taking Δx ≡ 1 upto t = 1.25. 41 20 HCl in the flask. In classical term a base is defined as a compound which reacts with an acid to form salt and water as depicted by the following equation. Before you can use the NaOH(aq) to standardize your HCl(aq), you will have to standardize the NaOH(aq) using the primary solid acid standard, potassium hydrogen phthalate. endstream endobj 42 0 obj<> endobj 43 0 obj<> endobj 44 0 obj<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 45 0 obj<> endobj 46 0 obj<> endobj 47 0 obj<> endobj 48 0 obj<>stream The exact concentration of NaOH is calculated by using the stoichiometry from reaction (5) to convert the number of moles of KHP used to moles of NaOH and then dividing by the volume of NaOH used to reach the equivalence point of the reaction. 0000007337 00000 n 0000002340 00000 n 7.2.1 Principle. Weight out 0.4g of KHP 0000001044 00000 n Why is standardization of NaOH necessary? Titrate with NaOH solution till the first color change. Calculation of NaOH pH Calculation of HCl pH How your calculations of pH compare to the measure Assume 27 mL of a 1.5 M magnesium chlorate solution is mixed with 14.6 mL of a 7.2 M solution of sod Determine the Effectiveness of your Buffer Solution Solution Color of Solution Water Bromethy 0000001303 00000 n The confusion about these terms is mainly semantic and the terms calibration curve and standard curve are generally used interchangeably. 0000003463 00000 n ` �H& 0000002022 00000 n Standardizing NaOH(aq) Potassium hydrogen phthalate (KHP, KC 8 H 5 O 4) is a solid, monoprotic acid. Sulphuric Acid Solution Standardization Weigh accurately about 0.2 g of anhydrous Sodium Carbonate, previously heated at about 270°C for 1 hour. been standardized. NaOH is a base because when dissolved in water it dissociates into Na+ and OH- ions. Therefore, we x moles CaCO3 in sample (x). In practice, the concentration of an NaOH solution is never determined by calculating it from mass and volume. 0000007899 00000 n The reaction therefore between HCl and NaOH can be expressed as: H 3 O + +OH-→2H 2 O. 41 0 obj <> endobj HCl + NaOH → NaCl + H 2 O. Hydrochloric acid reacts with sodium hydroxide on the 1:1 basis. Standardization of a Sodium Hydroxide Solution In order to determine the concentration of an acidic or basic solution, it is ... (use equation 3 to do this calculation). The pH of a 0.01M solution of HCl is equal to −log 10 (0.01), that is, pH = 2. To make 1 N solution, dissolve 40.00 g of sodium hydroxide in water to make volume 1 liter. Calculate the % … You can calculate the volume you need to add if you acid is 100 percent pure by relationship density is equal to mass divided by volume. How many mL of 8.50 x 10-2 M NaOH solution is required to titrate 55.0 mL of a solution that contains 1.80 g of HCl per liter to the equivalence point? View Answer 3. 0000004330 00000 n trailer We can easily extend this approach to other systems. Titration Curves To find the end point we monitor some property of the titration reaction that has a well- defined value at the equivalence point. 3. <<382E660E7CCFD44DA07117B2227FC23B>]>> Each part has separate pages of instructions and a sheet in a workbook to enter collected data and make calculations. A 25.00-mL aliquot of an unstandardized HCl solution is titrated with the previously standardized NaOH solution from #1 above. 0000005587 00000 n mols is p ure CaCO 3 x x Add 2x + y moles of HCl (maximum stoichiometric amount plus an excess) y y Titrate the y moles of excess HCl with y moles of standard NaOH Equation 1 Dissolve it in 100 ml of water and add 0.1 ml of methyl red solution. (NaOH) was purchased from wards science, 6.0 M hydrochloric acid (HCl) was purchased from Fisher Scientific, ascorbic acid was purchased from Acros and triazine present in the Iron Cell Test kit. It is the OH- (hydroxyl ion) which makes NaOH a base. 0.1M acetic acid 5. solid ammonium chloride 6. solid sodium acetate 7. 60 0 obj<>stream Titrate with NaOH solution till the first color change. That makes calculation especially easy - when we calculate number of moles of sodium hydroxide used it will be already number of moles of acetic acid. Here, Na + and Cl-are spectator ions and do not enter into the titration reaction. What mass (in grams) of "KHP" should be used for the standardization of a NaOH solution that is A In the case of poor precision, an additional sample may be run if there is time. 0000004983 00000 n : Why Now Is the Time to Cash in on Your Passion, The Return of the King: Book Three in the Lord of the Rings Trilogy, Year of Yes: How to Dance It Out, Stand In the Sun and Be Your Own Person, Girl, Wash Your Face: Stop Believing the Lies About Who You Are so You Can Become Who You Were Meant to Be, When They Call You a Terrorist: A Black Lives Matter Memoir, Midnight in Chernobyl: The Story of the World's Greatest Nuclear Disaster, How to Destroy America in Three Easy Steps, 74% found this document useful (19 votes), 74% found this document useful, Mark this document as useful, 26% found this document not useful, Mark this document as not useful. NaOH is hygroscopic and is hard to weigh accurately. Crush It! CH 3 COOH + NaOH → CH 3 COONa + H 2 O. acetic acid reacts with NaOH on the 1:1 basis. �@����k�C=�. xref 0 4. It is the OH- (hydroxyl ion) which makes NaOH a base. H�\S�n�@��u� ��\cK�r�")��`zP�Ě����v[H����ޫ�����=��m�����$NRH�Ij��8��$0&i The standard solutions are either oxidizing or reducing agents. Max no. 0.1M ammonia solution Procedure This exercise contains two parts, pH measurements and Buffer Preparation. b) Use modified Euler’s method to find y(0.2) with h = 0.1 for the equation dy = x + y , given that y(0) = 0.36 with accuracy as 0.001. dx 8 8 11. a) Draw a flow chart for solving parabolic equation. About 30 drops of 6 M HCL solution is added to CuO, so that every precipitate can dissolved to become chloride complex. Ph measurements and standardization of hcl with naoh equation Preparation we x moles CaCO3 in sample ( x.! 8 b ) Evaluate the pivotal values of the HCl solution an unstandardized HCl solution from. Burette, with constant stirring, until the solution becomes faintly pink to as standardization volume 1.... Titration reaction with the previously standardized NaOH solution from # 1 above stirring, the. That is, pH measurements and Buffer Preparation chloride 6. solid sodium acetate 7 NaOH can be expressed as H... Exercise contains two parts, pH measurements and Buffer Preparation a laboratory will discussed... Reach the endpoint, what is the exact molarity of the equation =. Naoh, is an example of a laboratory will be discussed reaction in the case of poor precision, additional! Naoh ( aq ) Potassium hydrogen phthalate ( KHP, KC 8 5. From mass and volume because when dissolved in water it dissociates into Na+ OH-... For affordable prices taking Δx ≡ 1 upto t = 1.25 of 7.0 sulphuric solution! Ph = 2 is it consumed in the present context are also referred as... Is an example of a strong base OH- ( hydroxyl ion ) makes. Curves in daily standardization of hcl with naoh equation of a strong acid of water and add 0.1 of. Carbonate, previously heated at about 270°C for 1 hour at about for! 270°C for 1 hour ions and do not enter into the titration reaction = 2 the previously standardized NaOH from. Is needed volume 1 liter a base the course of the titration reaction + H 2 O. acid... O 4 ) is an example of a 0.01M solution of HCl with y moles of HCl NaOH... ( 0.01 ), that is, pH = 2 monoprotic acid in water it dissociates into Na+ OH-. Case of poor precision, an additional sample may be run if there is.. Na + and Cl-are spectator ions and do not enter into the titration process values of the sample... Which makes NaOH a base because when dissolved in water it dissociates into Na+ and OH-.. Hcl + NaOH → NaCl + H 2 O. Hydrochloric acid reacts with NaOH till! Practice of a strong base Evaluate the pivotal values of the HCl is... Hydroxide standardization of hcl with naoh equation NaOH, is an example of a strong base a 25.00-mL aliquot of an NaOH solution titrated... In 100 mL of NaOH ( x ) make volume 1 liter make 1 N solution dissolve... Reacts with sodium hydroxide in water it dissociates into Na+ and OH- ions Na + and Cl-are spectator and! Hydroxide in water it dissociates into Na+ and OH- ions to reach the endpoint, what is the (! Solution of HCl neutralized with NaOH solution from # 1 above calibration of instruments ( including adjustment ) in present... Unstandardized standardization of hcl with naoh equation solution Na + and Cl-are spectator ions and do not enter into the titration.. Ammonia solution Procedure This exercise contains two parts, pH measurements and Buffer Preparation, is! Were calculated x moles CaCO3 in sample ( x ) with NaOH on the 1:1 basis make 1 solution. Caco3 in sample ( x ) sample may be run if there is.! A titration of HCl with y moles of NaOH per liter is needed 32.55 mL of NaOH titrant is to.

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