Question
How many moles of hydroxide ion would you expect to be in 500ml of household ammonia?
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GPT 3.5
Household ammonia typically has a concentration of about 1-10% ammonia by weight. For this calculation, let's assume the concentration is 5%.
The molar mass of ammonia (NH3) is 17.03 g/mol. Therefore, a 5% solution of ammonia contains 5 g of ammonia in 100 g of solution (since 5% is equivalent to 5g/100g).
Using the formula:
moles = mass / molar mass
moles = 5 g / 17.03 g/mol ≈ 0.294 moles
Since ammonia reacts with water to form ammonium ion (NH4+) and hydroxide ion (OH-), you would expect the same number of moles of hydroxide ion as ammonia. Therefore, in 500 ml of household ammonia, you would expect approximately 0.294 moles of hydroxide ions.
The molar mass of ammonia (NH3) is 17.03 g/mol. Therefore, a 5% solution of ammonia contains 5 g of ammonia in 100 g of solution (since 5% is equivalent to 5g/100g).
Using the formula:
moles = mass / molar mass
moles = 5 g / 17.03 g/mol ≈ 0.294 moles
Since ammonia reacts with water to form ammonium ion (NH4+) and hydroxide ion (OH-), you would expect the same number of moles of hydroxide ion as ammonia. Therefore, in 500 ml of household ammonia, you would expect approximately 0.294 moles of hydroxide ions.
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