Determine the number of grams of NH3 produced by the reaction of 3.5g of hydrogen gas with sufficient nitrogen gas
1. Write the balanced equation.
2. Convert what you have (3.5 g) into mols. Mols = grams/molar mass.
3. Use the coefficients in the balanced equation to convert mols of what you have (hydrogen gas) to mol of what you want (NH3).
4. Convert mols NH3 to grams NH3.
g NH3 = mols NH3 x molar mass NH3.
Post your work if you get stuck.
Sure! Let's go step by step to determine the number of grams of NH3 produced by the reaction.
Step 1: Write the balanced equation.
The balanced equation for the reaction of hydrogen gas (H2) with nitrogen gas (N2) to produce ammonia (NH3) is:
3H2 + N2 -> 2NH3
Step 2: Convert what you have (3.5g) into mols.
To do this, we need to calculate the number of moles of hydrogen gas (H2) using its molar mass. The molar mass of hydrogen gas is 2.02 g/mol.
Mols H2 = grams H2 / molar mass H2
Mols H2 = 3.5g / 2.02 g/mol
Mols H2 ≈ 1.7327 mol
Step 3: Use the coefficients in the balanced equation to convert mols of H2 to mols of NH3.
In the balanced equation, the coefficient of H2 is 3 and the coefficient of NH3 is 2. This means that for every 3 moles of H2, we get 2 moles of NH3.
Mols NH3 = (Mols H2 * Coefficient of NH3) / Coefficient of H2
Mols NH3 = (1.7327 mol * 2) / 3
Mols NH3 ≈ 1.1551 mol
Step 4: Convert mols NH3 to grams NH3.
To do this, we need to use the molar mass of NH3, which is 17.03 g/mol.
g NH3 = mols NH3 * molar mass NH3
g NH3 = 1.1551 mol * 17.03 g/mol
g NH3 ≈ 19.66 g
Therefore, the number of grams of NH3 produced by the reaction is approximately 19.66 grams.