Question

What volume (mL) of a 15% (m/v) NaOH solution contains 120 g NaOH

Answer 1

8.0*10^2

Step-by-step explanation:

What volume (in milliliters) of a 15% (m/v) NaOH solution contains 120 g NaOH?

For 15% (m/v), the conversion factor can be 15%/100 mL or 100 mL/15%. In this case, 100 mL/15% is used because we need mL as our final expression. 100 mL/15% * 120 g NaOH= 800 mL NaOH. In scientific notation: 8.0*10² or 8.0e² mL NaOH.