A mixture contains 20cm 3 of hydrogen, 35cm 3 of oxygen. 15cm 3 of carbon
CHEMISTRY
POST UTME FUTO
A mixture contains 20cm3 of hydrogen, 35cm3 of oxygen. 15cm3 of carbon dioxide and 10cm3 of nitrogen at S.T.P, which of the following gives the mole fraction of hydrogen in this mixture?
- A) 0.02
- B) 0.16
- C) 0.20
- D) 0.25
Correct Answer: D) 0.25
Explanation
Total volume of mixture = 20cm\(^3\) + 35cm\(^3\) + 15cm\(^3\) + 10cm\(^3\) = 80cm\(^3\)
Mole fraction of H = \(\cfrac{20\text{cm}^3}{80\text{cm}^3} = 0.25\)
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *