Measures of Concentration: Molarity — Quiz Answers

In a school’s laboratory, students require 50 point 0 milliliters of 2 point 5 0 cap m cap h sub 2 SO sub 4 for an experiment, but the only available stock solution of the acid has a concentration of 18 point 0 cap m What volume of the stock solution would they use to make the required solution? Use cap m sub i cap v sub i is equal to cap m sub f cap v sub f

Which would be the best way to represent the concentration of a 1 point 7 5 cap m cap k sub 2 CrO sub 4 solution?

Which is a way to express concentration of a solution?

Which solution is the most concentrated?

Given that the molar mass of NaOH is 40 point 0 0 g/mol , what mass of NaOH is needed to make 2 point 5 0 0 liters of a 2 point 0 0 0 cap m NaOH solution? Use molarity is equal to moles of solute over liters of solution

In a group assignment, students are required to fill 10 beakers with 0 point 7 2 0 cap m CaCl sub 2 If the molar mass of CaCl sub 2 is 110 point 9 8 g/mol and each beaker must have 250 point milliliters of solution, what mass of CaCl sub 2 would be used? Use molarity is equal to moles of solute over liters of solution

A student takes a measured volume of 3 point 0 0 cap m HCl to prepare a 50 point 0 milliliters sample of 1 point 8 0 cap m HCl What volume of 3 point 0 0 cap m HCl did the student use to make the sample? Use cap m sub i cap v sub i is equal to cap m sub f cap v sub f

How many moles of Ba open paren NO sub 3 close paren sub 2 are there in 0 point 2 5 liters of a 2 point 0 0 cap m Ba open paren NO sub 3 close paren sub 2 solution? Use molarity is equal to moles of solute over liters of solution

A chemist uses 0 point 2 5 liters of 2 point 0 0 cap m cap h sub 2 SO sub 4 to completely neutralize a 2 point 0 0 liters of solution of NaOH The balanced chemical equation of the reaction is given. 2NaOH+H_2⁢SO_4→Na_2⁢SO_4+2H_2O What is the concentration of NaOH that is used?

A chemistry teacher adds 50 point 0 milliliters of 1 point 5 0 cap m cap h sub 2 SO sub 4 solution to 200 milliliters of water. What is the concentration of the final solution? Use cap m sub i cap v sub i is equal to cap m sub f cap v sub f