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When aluminum metal reacts with hydrobromic acid, hydrogen gas is produced: 2Al(s) 6HBr(aq)2AlBrs(aq)3H2(g) 1. If 0.4271 g aluminum reacts, calculate the moles of hydrogen gas produced. 2. The hydrogen gas will be collected over water. The pressure of the hydrogen gas and the water vapor is equal to the total pressure which is the same as the barometric pressure. Calculate the hydrogen gas pressure collected at 24.8 °C when the barometric pressure is 729.8 Torr. Pr Pnydrogen gas+ Pwater vapor Pr is barometric pressure P water vapor can be found using the table of water vapor pressures in your lab manual 3. Convert the pressure from Tor to atmospheres (atm) 4. Convert the temperature to kelvin. 5. Calculate the value of the ideal gas constant if the hydrogen gas volume is 0.615 L: R (ideal gas constant)(pressure in atm) volume in liters) (amount of gas in moles)(temperature of the gas in kelvin) L atm mol K 6. The standard value of the ideal gas constant is 0.082057 Calculate the percent error of your calculated value from #5. Show transcribed image text
When aluminum metal reacts with hydrobromic acid, hydrogen gas is produced: 2Al(s) 6HBr(aq)2AlBrs(aq)3H2(g) 1. If 0.4271 g aluminum reacts, calculate the moles of hydrogen gas produced. 2. The hydrogen gas will be collected over water. The pressure of the hydrogen gas and the water vapor is equal to the total pressure which is the same as the barometric pressure. Calculate the hydrogen gas pressure collected at 24.8 °C when the barometric pressure is 729.8 Torr. Pr Pnydrogen gas+ Pwater vapor Pr is barometric pressure P water vapor can be found using the table of water vapor pressures in your lab manual 3. Convert the pressure from Tor to atmospheres (atm) 4. Convert the temperature to kelvin. 5. Calculate the value of the ideal gas constant if the hydrogen gas volume is 0.615 L: R (ideal gas constant)(pressure in atm) volume in liters) (amount of gas in moles)(temperature of the gas in kelvin) L atm mol K 6. The standard value of the ideal gas constant is 0.082057 Calculate the percent error of your calculated value from #5.
Show transcribed image text Nestor RutherfordLv2
10 May 2019