# What is the molarity of a solution that is 26.0 % by mass phosphoric acid (H_3PO_4) and that has...

## Question:

What is the molarity of a solution that is {eq}26.0 \ \% {/eq} by mass phosphoric acid {eq}(H_3PO_4) {/eq} and that has a density of {eq}1.155 \ g / ml {/eq}?

## Molarity and Normality:

Molarity is defined as the number of moles of solute per liter of solution. Another way to express concentration is normality, which is the moles of {eq}H+ {/eq} in an acid or {eq}OH^- {/eq} in a base per liter of solution. For example, sulfuric acid is a diprotic acid. A 1.00 molar solution of sulfuric acid would be a 2.00 normal solution. The abbreviation for molarity is M and for normality the abbreviation is N.