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How many litres of ammonia are present in 3.4 kg of it? (N = 14, H = 1)
- a)22.4 litres
- b)44.8 litres
- c)4480 litres
- d)2240 litres
Correct answer is option 'C'. Can you explain this answer?
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How many litres of ammonia are present in 3.4 kg of it? (N = 14, H = ...
Gram molecular weight of NH3 = 14 + (1 × 3) = 17 g
17 g of NH3= 22.4 litres
∴ 3.4 × 103g of NH = 22.4/17 × 3.4 × 103
= 76160/17 = 4480 litres
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How many litres of ammonia are present in 3.4 kg of it? (N = 14, H = ...
To find the number of liters of ammonia in 3.4 kg, we need to use the concept of molar mass and the Avogadro's law.
1. Calculate the molar mass of ammonia:
The molar mass of ammonia (NH3) can be calculated by adding the atomic masses of nitrogen (N) and three hydrogen (H) atoms.
Molar mass of N = 14 g/mol
Molar mass of H = 1 g/mol
Molar mass of NH3 = (1 * 14) + (3 * 1) = 17 g/mol
2. Determine the number of moles in 3.4 kg of ammonia:
We can use the formula:
Number of moles = Mass (in grams) / Molar mass
Number of moles = 3400 g / 17 g/mol = 200 mol
3. Apply Avogadro's law to convert moles to liters of gas:
According to Avogadro's law, 1 mole of any gas occupies 22.4 liters at standard temperature and pressure (STP). Therefore, 200 moles of ammonia will occupy:
Number of liters = Number of moles * 22.4 liters/mol
Number of liters = 200 mol * 22.4 liters/mol = 4480 liters
Therefore, there are 4480 liters of ammonia present in 3.4 kg of it.
Hence, the correct answer is option C) 4480 liters.
1. Calculate the molar mass of ammonia:
The molar mass of ammonia (NH3) can be calculated by adding the atomic masses of nitrogen (N) and three hydrogen (H) atoms.
Molar mass of N = 14 g/mol
Molar mass of H = 1 g/mol
Molar mass of NH3 = (1 * 14) + (3 * 1) = 17 g/mol
2. Determine the number of moles in 3.4 kg of ammonia:
We can use the formula:
Number of moles = Mass (in grams) / Molar mass
Number of moles = 3400 g / 17 g/mol = 200 mol
3. Apply Avogadro's law to convert moles to liters of gas:
According to Avogadro's law, 1 mole of any gas occupies 22.4 liters at standard temperature and pressure (STP). Therefore, 200 moles of ammonia will occupy:
Number of liters = Number of moles * 22.4 liters/mol
Number of liters = 200 mol * 22.4 liters/mol = 4480 liters
Therefore, there are 4480 liters of ammonia present in 3.4 kg of it.
Hence, the correct answer is option C) 4480 liters.
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How many litres of ammonia are present in 3.4 kg of it? (N = 14, H = 1)a)22.4 litresb)44.8 litresc)4480 litresd)2240 litresCorrect answer is option 'C'. Can you explain this answer?
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