Question

30 POINTS!!! There is an average of 3.5×10^−2 kilograms of dissolved salt in each liter of seawater. The Pacific Ocean contains approximately ​6.6×10^20​ liters of seawater.

How many kilograms of dissolved salt are in the Pacific Ocean?

Answer 1

2.31 * 10 ^ 19

Explanation:

Take the number of kilograms per liter and multiply by the number of liters

3.5×10^−2 * 6.6×10^20​

The coefficients get multiplied and the exponents add

3.5 * 6.6 * 10 ^ (-2+20)

23.1 * 10 ^ 18

This is not scientific notation since 23.1 is greater than or equal to 10 so we move the decimal 1 place to the left and add 1 to the exponent

2.31 * 10 ^ 19