Question

Calculate the number of N2 and H2. molecules obtain of 8.5 g of N2+3H2 into 2NH3​

Answer 1

Answer:

Search for questions & chapters

Class 11

>>Chemistry

>>Some Basic Concepts of Chemistry

>>Stoichiometry and Stoichiometric Calculations

>>According to the reaction 3...

Question

Bookmark

According to the reaction 3H

2

+N

2

→2NH

3

, how many grams of hydrogen gas and nitrogen gas are needed to make exactly 68 grams of ammonia?

Medium

Solution

verified

Verified by Toppr

Correct option is

C

12 grams of hydrogen gas

and 56 grams of nitrogen gas

The molar mass of ammonia is 17 g/mol.

68 grams of ammonia corresponds to

17g/mol

68g

=4moles

4 moles of ammonia will be obtained from

2

4×1

=2 moles of nitrogen and

2

4×3

=6 moles of hydrogen.

The molar masses of nitrogen and hydrogen are 28 g/mol and 2 g/mol respectively.

2 moles of nitrogen corresponds to 2×28=56 grams.

6 moles of hydrogen corresponds to 6×2=12 grams.

Explanation:

hope it helps