Question

If you add 50.0 mL of water to a beaker containing 22 mL of water, how much total water do you have in the beaker?

• A. 72.0 ml
• B. 72 ml
• C. 70.2 ml
• D. 71.2 ml
• E. 70.0 ml

Answer 1

Answer: (B)

72 ml

If you add 50.0 mL of water to a beaker containing 22 mL of water, then total water in the beaker is $50.0+22=72$ mL.
The answer will not contain decimal point. 50.0 has one decimal point and 22 has 0 decimal point.
The result of addition must be reported to the same number of significant figures as possessed by the least precise term.