H8. +(a)A laboratory technician dissolved 6.797 g of compound W (a non-electrolyte) in 15.00 mL ofethylene glycol in a boiling tube and heated the sample. If the boiling point of the mixture wasfound to be 201.4 °C, what is the molar mass of W?(b)A buffer is prepared by adding together 600 mL of 1.64 M hydrocyanic acid and 850 mL of0.98 M sodium cyanide. Given that the new pH of the buffer is 9.01 after 25 mL of sulfuric acidis added, calculate the concentration of the sulfuric acid.

The elevation in boiling point on addition of non-electrolyte to a pure liquid is a colligative…

A laboratory technician dissolved 6.797 g of compound W (a non-electrolyte) in 15.00 mL of ethylene glycol in a boiling tube and heated the sample. If the boiling point of the mixture was found to be 201.4 °C, what is the molar mass of W? A buffer is prepared by adding together 600 mL of 1.64 M hydrocyanic acid and 850 mL of 0.98 M sodium cyanide. Given that the new pH of the buffer is 9.01 after 25 mL of sulfuric acid is added, calculate the concentration of the sulfuric acid.

A laboratory technician dissolved 6.797 g of compound W (a non-electrolyte) in 15.00 mL of ethylene glycol in a boiling tube and heated the sample. If the boiling point of the mixture was found to be 201.4 °C, what is the molar mass of W? A buffer is prepared by adding together 600 mL of 1.64 M hydrocyanic acid and 850 mL of 0.98 M sodium cyanide. Given that the new pH of the buffer is 9.01 after 25 mL of sulfuric acid is added, calculate the concentration of the sulfuric acid.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.22QAP

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