Determine the molar mass of the unknown acid. A 15.00 mL sample of NaOH was titrated to the stoichiometric point with 17.40 mL of 0.2340 M HCl. a. What is the molar concentration of the NaOH solution? b. Calculate the grams o...
Question: Calculate the molar mass of a diprotic acid. It reaches the endpoint of the titration with NaOH at 28 ml. The initial concentration of NaOH is 0.09792 and the initial mass of the diprotic acid is 0.685 g. Molar Ma...
grade, such as potassium hydrogen ortho-phthalate (usually shortened to KHP). Primary standards are reagents with a number of useful qualities. A Primary standard should * be of high purity * remain unchanged in air during massing and remain stable during storage * have a high molar mass to ...
If a 0.3502 g sample of pure KHP (molar mass = 204.2 g/mol) is titrated to a phenolphthalein endpoint with 16.24 mL of a NaOH solution, what is the concentration of the NaOH solution? If it takes 59.62 mL of 0.3234 M HCl to titrate an...
The exact pH range depends on the chosen application for the solution, with a pH near neutral (7) selected for various biochemical reactions. There are three methods available for the preparation of a buffer solution. The active components of the buffer must satisfy two requirements....
What was the molar concentration of acetic acid in the vinegar? Suppose you have a sample of NaOH (0.0315 L, to be exact). If this amount of NaOH is used to exactly titrate 0.0250 L of HCl that has a concentration of 0.105 M, what is t...
Calculate the molar mass of the acid. 1.12 g of KHP required 34.38 mL of an approximately 0.3 m NaOH solution in an acid/base titration to reach the equivalence point. What is the exact molarity of the NaOH solu...
Answer to: A 0.235-gram sample of a solid that is 92.5% NaOH and 7.5% Ca(OH)2 by mass requires 45.6 mL of an HCl solution for its titration. What...
Calculate the molar mass of the acid. What is the molarity of NaOH if it takes 40.0 mL of NaOH to reach the equivalence point in a titration with 50.0 mL of 0.2 mol/L HCL? (A: 0.25M) a) For the titration of 25.0 mL of 0.1 M HCl (...
What was the molar concentration of the sodium hydroxide solution? 1.12 g of KHP required 34.38 mL of an approximately 0.3 m NaOH solution in an acid/base titration to reach the equivalence point. What is the exact molarity of th...