SATHEE: Some Basic Concepts Of Chemistry Question 124

Some Basic Concepts Of Chemistry Question 124

Question: An analysis of organic compound gave 74.0% C, 8.65% of H and 17.3% N. What is the empirical formula of compound?

Options:

A) $C_{5} H_{8} N$

B) $C_{10} H_{12} N$

C) $C_{5} H_{7} N$

D) $C_{10} H_{14} N$

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Relative number of atoms, For $C = \frac{74}{12} = 6.1,$

For $H = \frac{8.65}{1} = 8.65,$

For $N = \frac{17.3}{14} = 1.2$

Simplest ratio: For $C = \frac{6.1}{1.2} = 5, H = \frac{8.65}{1.2} = 7,, N = \frac{1.2}{1.2} = 1;$

Hence, empirical formula $= C_{5} H_{7} N$

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Some Basic Concepts Of Chemistry Question 124

Question: An analysis of organic compound gave 74.0% C, 8.65% of H and 17.3% N. What is the empirical formula of compound?

Options:

Answer:

Solution:

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