Question
What is the percent by mass of 5.0g of iron sulfate dissolved in 75.0 g of water?
Answer
4.6
(241 Votes)
Ivy
Professional · Tutor for 6 years
Answer
### The percent by mass is
.
Explanation
## Step 1: Define Percent by Mass### Percent by mass is calculated as the mass of the solute divided by the total mass of the solution, multiplied by 100.## Step 2: Calculate Total Mass### The total mass of the solution is the sum of the mass of the solute and the solvent:
.## Step 3: Apply the Percent by Mass Formula### Use the formula \(\text{Percent by Mass} = \left(\frac{\text{mass of solute}}{\text{total mass of solution}}\right) \times 100\)## Step 4: Compute the Percent by Mass### Substitute the given values into the formula: \(\left(\frac{5.0 \mathrm{~g}}{80.0 \mathrm{~g}}\right) \times 100 = 6.25\%\)