Question

The elements that compose seawater, along with the corresponding percents are shown in the table. if a sample of seawater contains 30ml, how many ml of oxygen are in sample?

Answer 1

Step 1

Given;

`\begin{gathered} \text{Volume of sea water = 30ml} \\ \text{Percentage of oxygen= 85.84\%} \end{gathered}`

Required; To find how many ml of oxygen are in the sample?

Step 2

Calculate how many ml of oxygen are in the sample

`=\frac{\text{percentage of oxygen in sample}}{100}*30`
`=(85.84)/(100)*30=25.752ml`

Hence, there are 25.752ml of oxygen in the sample of seawater.