What would be the mass of ammonia (NH) in a 850. mL container at 780. Torr and 27.0°C?
V=850mL
P=780. Forr
T= 27.0 °C +273= 300K
Hydrogen gas is produced when 12.5 g of aluminum is reacted with an excess of hydrochloric
acid (HCI).
(A) Write the balanced equation for the reaction.
(B) Calculate the number of moles of hydrogen produced in the reaction.
(C)What volume would the hydrogen from Part B occupy at 0.987 atm and 25°C?
If all of the flasks below contain the same amount of moles and the same volume but are
different temperatures and different pressures, which flask would have the LOWEST pressure?
Justify your answer.
273 K
300 K
325 K
400 K
Flask 1
Flask 2
Flask 3
Flask 4


Can someone help me answer these 5 questions on chemistry?