Chemistry Fun: Calculating Percentage Mass of Ammonia in Household Cleaner!

What is the percentage mass of ammonia (NH₃) in a household cleaner based on the given data? The percentage mass of ammonia (NH₃) in a household cleaner can be calculated by following these steps based on the given data: 1. Calculate the number of moles of H₂SO₄ used: - Volume of H₂SO₄ solution = 37.3 cm³ = 0.0373 L - Molarity of H₂SO₄ solution = 0.360 M - Moles of H₂SO₄ = Molarity x Volume = 0.360 mol/L x 0.0373 L = 0.0134 mol 2. Since the ratio between NH₄OH and H₂SO₄ is 2:1, the number of moles of NH₄OH used is also 0.0134 mol. 3. Calculate the molar mass of NH₄OH: - NH₄OH = 1(N) + 4(H) + 1(O) = 14.01 g/mol + 4.03 g/mol + 16.00 g/mol = 34.04 g/mol 4. Calculate the mass of NH₄OH used: - Mass = Moles x Molar mass = 0.0134 mol x 34.04 g/mol = 0.454 g 5. Calculate the percentage mass of NH₃ in the cleaner: - Percentage mass = (Mass of NH₃ / Mass of cleaner) x 100% - The mass of NH₃ is twice the mass of NH₄OH used (from the balanced chemical equation). - Mass of NH₃ = 2 x Mass of NH₄OH used = 2 x 0.454 g = 0.908 g - Mass of cleaner = 5.37 g (given) - Percentage mass of NH₃ = (0.908 g / 5.37 g) x 100% ≈ 16.9% Therefore, the percentage mass of ammonia (NH₃) in the cleaner is approximately 16.9%.

Have you ever wondered how to calculate the percentage mass of ammonia in a household cleaner? Well, it's actually quite simple! By using the given data and a bit of chemistry knowledge, we can easily determine the percentage mass of ammonia in the cleaner. Let's break it down step by step:

Step 1: Calculate the number of moles of H₂SO₄ used

To start off, we need to determine the number of moles of sulphuric acid (H₂SO₄) used in the neutralization reaction. By calculating the moles of H₂SO₄, we can then find the moles of NH₄OH used in the reaction as well.

Step 2: Calculate the molar mass of NH₄OH

Next, we find the molar mass of ammonium hydroxide (NH₄OH) by adding up the atomic masses of nitrogen (N), hydrogen (H), and oxygen (O) in the compound.

Step 3: Calculate the mass of NH₄OH used

Once we have the moles of NH₄OH, we can determine the mass of NH₄OH used in the reaction by multiplying the moles with the molar mass.

Step 4: Calculate the percentage mass of NH₃ in the cleaner

Finally, we calculate the percentage mass of ammonia (NH₃) in the household cleaner by considering the mass of ammonia compared to the total mass of the cleaner. This gives us the final result of approximately 16.9%.

So, there you have it! By following these simple steps and using some basic chemistry principles, we can calculate the percentage mass of ammonia in a household cleaner. Chemistry can be fun and useful in solving everyday problems like these!

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