Answer:
The answer to your question is 3.96 grams
Explanation:
Data
mass of NaCl = ?
volume = 330 ml = 0.330 L
Molarity = 0.205
Process
1.- Calculate the moles of NaCl in solution
Molarity = moles / volume
moles = Molarity x volume
-Substitution
moles = 0.205 x 0.330
moles = 0.0677
2.- Calculate the molar mass of NaCl
Molar mass = 23 + 35.5
= 58.5 g
3.- Use proportions to calculate the mass of NaCl in solution
58.5 g of NaCl ------------------- 1 mol
x ------------------ 0.0677 moles
x = (0.0677 x 58.5) / 1
x = 3.96 / 1
x = 3.96 grams
4.- Conclusion
There are 3.96 grams of NaCl in 330 ml of 0.205 M solution.
