Concentration Review Worksheet
1) If I make a solution by adding 83 grams of sodium hydroxide to 750 mL of
water…
a) What is the molality of sodium hydroxide in this solution?
b) What is the percent by mass of sodium hydroxide in this solution?
c) What is the mole fraction of sodium hydroxide in this solution?
2) If I make a solution by adding water to 35 mL of methanol (CH3OH) until
the final volume of the solution is 275 mL…
a) What is the molarity of methanol in this solution? (The density of
methanol is 0.792 g/mL)
b) What is the percent by volume of methanol in this solution?
This work is licensed under a Creative Commons Attribution - NonCommercial 4.0 International License.
More chemistry tutorials and practice can be found at www.chemfiesta.com.
1) If I make a solution by adding 83 grams of sodium hydroxide to 750 mL of
water…
a) What is the molality of sodium hydroxide in this solution?
b) What is the percent by mass of sodium hydroxide in this solution?
c) What is the mole fraction of sodium hydroxide in this solution?
2) If I make a solution by adding water to 35 mL of methanol (CH3OH) until
the final volume of the solution is 275 mL…
a) What is the molarity of methanol in this solution? (The density of
methanol is 0.792 g/mL)
b) What is the percent by volume of methanol in this solution?
This work is licensed under a Creative Commons Attribution - NonCommercial 4.0 International License.
More chemistry tutorials and practice can be found at www.chemfiesta.com.
