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The elements that compose seawater, along with the corresponding percentages, are shown in the table below.

If a sample of seawater contains 20 ml, how many ml of hydrogen are in the sample?

\begin{tabular}{|lr|}
\hline
& Seawater Elements \\
\hline
Chemical & Percent \\
\hline
Oxygen & [tex]$85.84\%$[/tex] \\
\hline
Hydrogen & [tex]$10.82\%$[/tex] \\
\hline
Chlorine & [tex]$1.94\%$[/tex] \\
\hline
Sodium & [tex]$1.08\%$[/tex] \\
\hline
Magnesium & [tex]$0.13\%$[/tex] \\
\hline
Other elements & [tex]$0.19\%$[/tex] \\
\hline
\end{tabular}

There are [tex]$\square$[/tex] ml of hydrogen in the sample.
(Type an integer or a decimal rounded to two decimal places.)


Sagot :

To determine the volume of hydrogen in a 20 ml sample of seawater, follow these steps:

1. Identify the percentage of hydrogen in seawater, which is given as 10.82%.
2. Convert this percentage to a decimal by dividing by 100:
[tex]\[ \frac{10.82}{100} = 0.1082 \][/tex]
3. Multiply the decimal representation of the hydrogen percentage by the total volume of the seawater sample to find the volume of hydrogen:
[tex]\[ \text{Volume of hydrogen} = 0.1082 \times 20 \, \text{ml} \][/tex]
4. Perform the multiplication:
[tex]\[ 0.1082 \times 20 = 2.164 \, \text{ml} \][/tex]

Therefore, there are 2.164 ml of hydrogen in the 20 ml sample of seawater.

There are [tex]\(2.164\)[/tex] ml of hydrogen in the sample.