Determine the concentration of a solution made by dissolving 10.0 g of sodium chloride in 750.0 mL of solution.
Group of answer choices
0.0133 M
0.476 M
0.133 M
0.171 M
0.228 M
To determine the concentration of a solution, we need to know the amount of solute (in moles) and the volume of solution (in liters).
First, we convert the mass of sodium chloride from grams to moles. The molar mass of sodium chloride is 58.44 g/mol.
10.0 g NaCl * (1 mol NaCl / 58.44 g NaCl) = 0.171 mol NaCl
Next, we convert the volume from milliliters to liters.
750.0 mL * (1 L / 1000 mL) = 0.750 L
Finally, we use the formula for concentration:
Concentration (M) = Amount of Solute (mol) / Volume of Solution (L)
Concentration = 0.171 mol NaCl / 0.750 L = 0.228 M
Therefore, the concentration of the solution is 0.228 M. The correct answer choice is option E.