Problem
QUESTION 1 Solve the problem. A lab technician has \( 227 \mathrm{~mL} \) of a solution of water and acid. \( 7 \% \) is acid. How many milliliters are acid? Round to the nearest hundredth if necessary. \( 158.90 \mathrm{~mL} \) \( 13.62 \mathrm{~mL} \) \( 18.16 \mathrm{~mL} \) \( 15.89 \mathrm{~mL} \)
Solution
Step 1 ：\( \text{Acid} = 227 \times 0.07 \)
Step 2 ：\( \text{Acid} = 15.89 \mathrm{~mL} \)
