Question

Calculate the moles of HCl in 15 mL of a 0.50 M solution.

Answer 1

Explanation:

$\tiny\implies Molarity = \dfrac{no. \: of \: moles \: of \: solute \times 1000}{volume \: of \: the \: solution \: (in \: ml)}$

$\tiny\implies 0.50 = \dfrac{no. \: of \: moles \: of \: solute \times 1000}{15}$

$\tiny\implies no. \: of \: moles \: of \: solute \times 1000 = 0.50 \times 15$

$\tiny\implies no. \: of \: moles \: of \: solute \times 1000 = 7.5$

$\tiny\implies no. \: of \: moles \: of \: solute = \dfrac{7.5}{1000}$

$\tiny\implies \bf no. \: of \: moles \: of \: solute = 0.075 \: mol$