Question

ammonia is commonly used as a fertilizer for plants. it is made when nitrogen gas and hydrogen gas react under specific conditions. consider the following reaction: 4 molecules of nitrogen (n₂) react with 12 molecules of hydrogen (h₂) to produce some amount of ammonia (nh₃). complete the table below. chemical element | number of atoms in the reaction h | blank n | blank during this reaction, how many molecules of ammonia (nh₃) are produced? blank submit work it out not feeling ready yet? this can help:

Explanation:

For the number of H atoms:

Step1: Analyze H₂ molecules

Each \( H_2 \) molecule has 2 H atoms. There are 12 \( H_2 \) molecules.
So total H atoms = \( 12\times2 = 24 \)

For the number of N atoms:

Step1: Analyze N₂ molecules

Each \( N_2 \) molecule has 2 N atoms. There are 4 \( N_2 \) molecules.
So total N atoms = \( 4\times2 = 8 \)

For the number of NH₃ molecules:

Step1: Write the balanced reaction

The reaction is \( N_2 + 3H_2\xrightarrow{} 2NH_3 \) (from stoichiometry, 1 \( N_2 \) reacts with 3 \( H_2 \) to form 2 \( NH_3 \))
Given 4 \( N_2 \) and 12 \( H_2 \) (since 4 \( N_2 \) would need \( 4\times3 = 12 \) \( H_2 \), so reactants are in stoichiometric ratio)

Step2: Calculate NH₃ molecules

From the ratio, 1 \( N_2 \) gives 2 \( NH_3 \), so 4 \( N_2 \) gives \( 4\times2 = 8 \) \( NH_3 \) molecules.

Answer:

s:

• Number of H atoms: \(\boldsymbol{24}\)
• Number of N atoms: \(\boldsymbol{8}\)
• Number of \( NH_3 \) molecules: \(\boldsymbol{8}\)