A piece of sodium (Na) metal reacts completely with water to produce NaOH(aq) and H₂(g). The H₂(g) generated is collected over water at 25.0°C. (Vapor pressure of water at 25°C is 0.0313 atm) The volume of the gas is 246 mL measured at normal atmospheric pressure. Calculate the mass (in grams) of Na (MM = 22.99) used in the reaction.

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12. A piece of sodium (Na) metal reacts completely with water to produce NaOH(aq) and H₂(g). The H₂(g)
generated is collected over water at 25.0°C. (Vapor pressure of water at 25°C is 0.0313 atm) The volume
of the gas is 246 mL measured at normal atmospheric pressure. Calculate the mass (in grams) of Na (MM
= 22.99) used in the reaction.
13. Ammonia (NH₁) burns in oxygen gas to form nitric oxide (NO) and water vapor. How many liters of
oxygen will react with 8.00 L of ammonia at the same temperature and pressure?
Transcribed Image Text:12. A piece of sodium (Na) metal reacts completely with water to produce NaOH(aq) and H₂(g). The H₂(g) generated is collected over water at 25.0°C. (Vapor pressure of water at 25°C is 0.0313 atm) The volume of the gas is 246 mL measured at normal atmospheric pressure. Calculate the mass (in grams) of Na (MM = 22.99) used in the reaction. 13. Ammonia (NH₁) burns in oxygen gas to form nitric oxide (NO) and water vapor. How many liters of oxygen will react with 8.00 L of ammonia at the same temperature and pressure?
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