Question

The mass of a water molecule is 2.99 x 10-23 grams. The mass of an electron is

9.11 x 10-28
grams.
How many times greater is the mass of a water molecule than
the mass of an electron? Write your answer in standard notation, rounding to the
nearest tenth.

Answer 1

• 32821.1 times

Explanation:

Divide the numbers:

• 2.99×10⁻²³ ÷ 9.11×10⁻²⁸ =
• 2.99/9.11×10⁻²³⁺²⁸ =
• 0.3282107×10⁵ =
• 32821.1 (rounded)