If a solution is prepared by mixing 20 g sodium chloride in 80 g of water
In percent by mass (% mass)?
a. 40% solute, 60% solvent
c. 20% solute, 80% solvent
b. 30% solute, 70% solvent
d. 10% solute, 90% solvent
In percent by mass (% mass)?
a. 40% solute, 60% solvent
c. 20% solute, 80% solvent
b. 30% solute, 70% solvent
d. 10% solute, 90% solvent
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Answer:
First add the mass of solute and the mass of solvent to get the solution.
If you find the mass of solution use this formula
"(mass of solute/mass of solution)x100"
If you find the percentage of the solute then change the value of solute in the formula into the value of solvent to find the percentage mass of solvent
From that problem you can get 100g of solution,20% solute and 80% solvent
So the answer is letter C.
Explanation: