Question

How many moles of H2SO4 are needed to prepare 5.0 liters of 2.0M solution of H2SO4?
a. 5.0
b. 10
c. 2.5
d. 20

Go back to the definition of molarity.
M = #mols/L

is the answer d

If M = # mols/L, then
L x M = #mols.
5.0L x 2.0M = 10 mols.
d. 20

Related Questions

What volume of 6.0m H2SO4 is needed to prepare 0.5L of a 0.3M H2SO4 solution? A 25-mL sample of 0.160M solution of NaOH is titrated with 17 mL of an unknown solution of H2SO4. Wh... How many grams of sulphuric acid (H2SO4) are needed to make 1.5L of a 1.5 molar solution? ~~~~~~~... How many moles of the solute h2so4 is needed to prepare 5 L of a 2 M solution of h2so4