josh prepares a solution by mixing sodium nitrate and water. to calculate the molarity of the solution, josh…

josh prepares a solution by mixing sodium nitrate and water. to calculate the molarity of the solution, josh should calculate the moles of which substance, and why?\no sodium nitrate, because it is the solvent\no sodium nitrate, because it is the solute\no water, because it is the solvent\no water, because it is the solute

josh prepares a solution by mixing sodium nitrate and water. to calculate the molarity of the solution, josh should calculate the moles of which substance, and why?\no sodium nitrate, because it is the solvent\no sodium nitrate, because it is the solute\no water, because it is the solvent\no water, because it is the solute

Answer

Answer:

B. sodium nitrate, because it is the solute

Explanation:

Step1: Define solute and solvent

In a solution of sodium nitrate and water, water is the solvent (the substance that does the dissolving) and sodium nitrate is the solute (the substance that is dissolved).

Step2: Recall molarity formula

Molarity ($M$) is defined as $M=\frac{n}{V}$, where $n$ is the number of moles of solute and $V$ is the volume of the solution in liters. So, to calculate molarity, we need to calculate the moles of the solute, which is sodium nitrate in this case.