Question

Choose the correct words to make each statement true. A 3.1 M solution contains 3.1 of solute dissolved in 1 of solution. The M in 3.1 M refers to The concentration of a 3.1 M solution may also be expressed as and would be expressed in

Answer 1

Answer:

A 3.1 M solution contains 3.1 moles of solute dissolved in 1 liter of solution.

The M in 3.1 M refers to molarity.

The concentration of a 3.1 M solution may also be expressed as $\frac{mol}{L}$ and would be expressed in $\frac{mol}{dm^{3} }$

Explanation:

The molarity reflects the concentration of a solution indicating the amount of moles of solute that appear dissolved in each liter of the solution.

$M=\frac{solute moles}{solution volume}$

Although various units can be used, it is usual to use $\frac{mol}{L}$, equivalent to $\frac{mol}{dm^{3} }$. This unit is usually expressed as a molar, with an M as a symbol.