Answer:
500 g of NaCl.
Explanation:
The given data is the volume (0.5 L) and density (1 g/mL). The question is asking for mass (grams). From volume and density, we can find the mass using the following formula:
[tex]density=\frac{mass}{volume}.[/tex]And solving for mass, we're going to have:
[tex]mass=density\cdot volume.[/tex]But we have a problem. We need to use the correct units to find the mass. We can convert 0.5 L to mL (milliliters). Remember that 1 L equals 1000 mL, so the conversion is:
[tex]0.5\text{ L}\cdot\frac{1000\text{ mL}}{1\text{ L}}=500\text{ mL.}[/tex]And now, with this volume, we can find the mass using the formula of mass:
[tex]\begin{gathered} mass=1\frac{g}{mL}\cdot500\text{ mL,} \\ mass=500\text{ g.} \end{gathered}[/tex]We're going to need 500 g of NaCl to make 0.5 L of a 1 g/mL solution.
