# 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.

## Answer and Explanation: 1

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View this answer**The concentration of the solution is 3.06 M.**

The mass of one liter of the acid is

{eq}1000\: \frac{mL}{L}\times 1.155 \: \frac{g}{mL} = 1155\: ...

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Chapter 8 / Lesson 4What is molarity? What is molality? Compare molarity vs molality by viewing molality and molarity formulas, how to calculate molarity and molality, and examples.