Example: Find the mass percentage of 6 g sodium hydroxide dissolved in 50 g of water. (Note: since the density of water is nearly 1, this type of question often gives the volume of water in milliliters.)
First find the total mass of the solution:
total mass = 6 g sodium hydroxide + 50 g water
total mass = 56 g
Now, you can find the mass percentage of the sodium hydroxide using the formula:
mass percent = (grams of solute / grams of solution) x 100
Answers & Comments
Answer:
Example: Find the mass percentage of 6 g sodium hydroxide dissolved in 50 g of water. (Note: since the density of water is nearly 1, this type of question often gives the volume of water in milliliters.)
First find the total mass of the solution:
total mass = 6 g sodium hydroxide + 50 g water
total mass = 56 g
Now, you can find the mass percentage of the sodium hydroxide using the formula:
mass percent = (grams of solute / grams of solution) x 100
mass percent = (6 g NaOH / 56 g solution) x 100
mass percent = (0.1074) x 100
answer = 10.74% NaOH