Question

A sample of 76 g of NaCl is dissolved to make 1 L of solution. What is the molarity of the solution? Show your work.

Answer 1

\[?mol NaCl = 76gr NaCl \times (\frac{ 1mol NaCl }{ 58.5gr NaCl }) = 1.30 mol NaCl\]
[NaCl] = \[1.30 mol NaCl \div 1L solution = 1.30 mol.L ^{-1}\]