Question

2.3g of C₂H5OH (mol. wt. 46) are dissolved in 500mL of water. The molarity of the solution? answers in step by step

Answers is 0.1​

Answer 1

Explanation:

$no \: of \: moles \: of \: ethanol = \frac{mass}{mol \: mass} = \frac{2.3}{46} = 0.05 \\ volume \: of \: solutions \: in \: litre = 500ml = 0.5litre \\ molarity = \frac{no \: of \: moles \: of solute}{vol \: of \: solution \: in \: litre} = \frac{0.05}{0.5} = 0.01mol \: per \: litre$