Question

There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. The Pacific Ocean contains approximately ​6.6×1020​ liters of seawater. How many kilograms of dissolved salt are in the Pacific Ocean? Enter your answer, in scientific notation, in the boxes. × 10 kg

Answer 1

Given info : 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 × 10²⁰ liters of seawater.

To find : no of kilograms of dissolved salt are in the Pacific Ocean.

Solution : each litre of seawater contains 3.5 × 10¯² kg dissolved salt.

so, 6.6 × 10²⁰ litre of seawater contains 3.5 × 10¯² × 6.6 × 10²⁰ kg dissolved salt.

i.e., 3.5 × 6.6 × 10^18 kg

= 23.1 × 10^18 kg

= 2.31 × 10^19 kg

Therefore 2.31 × 10^19 kg dissolved salt is available in 6.6 × 10²⁰ litres of seawater.

Answer 2

Answer:

$23.1 \times {10}^{18}$