Chemistry Answers

If 5.0 g of KClO₃ is decomposed, how many grams of KCl are produced?

If 5.0 g of KClO₃ is decomposed, how many grams of KCl are produced?

You have 25.00 mL of a 0.1000 M sugar solution. If you dilute this solution

to 0.01295 M, what is the final volume?

if 36.5 L of a gas are collected at a pressure of 755 mm Hg, what volume will the gas occupy if the pressure is changed to 632 mm Hg using Boyle's Law, P1V1 = P2V2

Chlorine gas occupies a volume of 23mL at 612k. What volume will it occupy at 343k?

The safety air bags in automobiles are inflated by nitrogen gas generated by the rapid decomposition of sodium azide, NaN3 (molar mass= 65.01 g/mol). If an air bag has a volume of 36 L and is to be filled with nitrogen gas at a pressure of 1.15 atm at a temperature of 26.0 °C, how many grams of NaN3 must be decomposed? _____ g NaN3

During a titration, 0.200 M HCl is added to a NaOH solution of unknown concentration. What is the concentration of the NaOH solution if 20.0mL of it is neutralized by 30.7mL of the standard solution? Show your work.

What is the molarity of a KOH solution if 25.0 mL of it is neutralized by 42.6 mL of a 0.100 M nitric acid solution? Show your work.

What is the pH of a 0.57 M solution of HCl, a strong acid? Show your work.

Write balanced chemical equations for each of the following reactions that involve acids and bases.

A. aluminum and hydrochloric acid

B. nitric acid and sodium chloride

C. potassium hydroxide and sulfuric acid