A solution contains 80.0 g of sodium chloride and 400.0 g of water. Calculate the NaCl as a mass percentage
total mass of the solution is 400+80 = 480g. mass% of solute = mass of solute/total mass of solution
hope that helps...
Just a slight addition.
mass % = (mass solute/total mass soln)*100 = ?
right i forgot the *100
To calculate the mass percentage of sodium chloride (NaCl) in the solution, we need to divide the mass of NaCl by the total mass of the solution, and then multiply by 100.
The mass of NaCl in the solution is given as 80.0 grams.
The total mass of the solution is the sum of the mass of NaCl (80.0 g) and the mass of water (400.0 g), which is 480.0 grams.
Now we can calculate the mass percentage of NaCl in the solution:
Mass percentage of NaCl = (mass of NaCl / total mass of the solution) x 100
Substituting the values we have:
Mass percentage of NaCl = (80.0 g / 480.0 g) x 100 = 16.67%
Therefore, the mass percentage of NaCl in the solution is 16.67%.