Question

The average mass of a grain of sand from

a certain beach is 9 × 10-8 kilograms.
What is this value in grams? Give your
answer in standard form.

Answer 1

0.0009 grams

Explanation:

The mass of the grain sand is:

`9 * {10}^( - 8) \: Kg`

To convert kilograms to grams we divide by 1000 (1 × 10³)

`\frac{9 * {10}^( - 8) }{1 * {10}^(3) }`

Which gives us:

`9 * {10}^( - 5)`

`9 * {10}^( - 5) = 0.0009 \: g`