A sample may contain NaOH, NazCO3 and NaHCO3, alone or in some combination, along with inert material. A sample with a mass of 857.6 mgwas dissolved and titrated w ith0.1163 M HCI. The volume of HCl used from 0 to methylred endpoint (Phenolphthalein endpoint was not monitored here) was found to be 36.54 mL. Another 228.8 mg portion of the sample was titrated to the phenolphthalein endpoint and 10.82 mL was used up for this titration. a. What is the composition of the sample? b. Calculate the percentage of each of the component present.

Sagar

A student needs to prepare a buffer made from CH3COOH and CH3COOK with pH 5.074. If K₂ for CH3COOH is [CH, COOH] [CH₂COOT] is required? C 1.80 x 10-5, what ratio of [CH3COOH] [CH, COO Submit Answer $ 000 R F V = % 5 [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group 9 more group attempts remaining T G Cengage Learning | Cengage Technical Support FS ^ 6 B MacBook Air ---F6 Y H & 7 N ◄◄ F7 U J * 00 8 ►ll M - ( 9 K F9 O Save and Exit dele

Please help asap

In the titration of 50.00mL of 0.2980M HCl, 71.93mL of 0.2173M NaOH was required to reach the phenolphthalien endpoint.  Calculate the percent error between the predicted amount and the experimental amount

A mixture was known to contain three of the four compounds in the table.  After the mixture of the three solids was extracted with hot water and filtered, Compound A was obtained by evaporating the filtrate to dryness.  When 3M HCl was added to the solid residue, a clear solution resulted.  After adding excess 3M NaOH solution to the acid solution, a precipitate was formed.  After filtration, the insoluble solid was found to be Compound B.  Compound C was recovered by evaporation of the filtrate.  None of the compounds (A, B, or C) was soluble in all of the solvents; water, 3M HCl, and 3M NaOH.   Identify Compounds A, B, and C.  Justify your answer.