Question

A chemist obtains a 0.300 M solution of HCI and adds 10.0 mL of the HCI to CaCO3 how many moles of HCI did she add?

Answer 1

Answer:

Number of moles = 0.003 mol

Explanation:

Given data:

Molarity of HCl = 0.300 M

Volume = 10.0 mL (0.01 L)

Number of moles of HCl added = ?

Solution:

Formula:

Molarity = number of moles / volume in litter

Number of moles = Molarity ×  volume in litter

Number of moles =  0.300 mol/L × 0.01 L

Number of moles = 0.003 mol