Answered

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A 15.8 g sample contains 3.60 g F, 4.90 g H, and 7.30 g C. What is the percent composition of hydrogen in this sample?

Sagot :

Cricetus

Answer:

The correct answer is "32%".

Explanation:

The given values:

Weight of H,

= 4.9 g

Weight of sample,

= 15.8 g

Now,

The weight percentage of C will be:

= [tex]\frac{Weight \ of \ C}{Total \ weight}\times 100[/tex]

By substituting the values, we get

= [tex]\frac{4.9}{15.8}\times 100[/tex]

= [tex]32 \ percent[/tex]

Answer: 22.7848% F or 23%

Explanation: %F = 3.6g/15.8g • 100% = 22.7848% F

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