How many grams of oxygen gas are required to produce 7.53 kJ of heat when hydrogen gas burns at constant press?

How many grams of oxygen gas are required to produce 7.53 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water?
2 H2(g) + O2(g) ? 2 H2O(g) ?H = ?484 kJ
Liquid water has a heat of vaporization of 44.0 kJ per mole at 25°C.

How many moles of hydrogen gas are needed to react with 0.50 mole of oxygen to form one mole of water?

How many moles of hydrogen gas are needed to react with 0.50 mole of oxygen to form one mole of water? 2H2(g) + O2(g) ® 2H2O(l)

How many liters of Water can be made from 5L of oxygen gas and an excess of hydrogen?

Using 2H2 + O2 –> 2H2O

Please explain!

Also this question:

How many liters of water can be made from 34 grams of oxygen gas and 6 grams of hydrogen gas at STP?

How many liters of hydrogen gas is formed from the complete reaction of 15.5 g C?

Consider the following chemical reaction:
C(s) + H2O(g) –> CO(g)+ H2(g)

How many liters of hydrogen gas is formed from the complete reaction of 15.5 g C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and a temperature of 360 K.
Express your answer using two significant figures.

How many moles of hydrogen gas are produced when 0.066 moles of sodium is completely reacted?

2Na + 2H2O —> 2NaOH + H2

How many moles of hydrogen gas are produced when 0.066 moles of sodium is completely reacted?

How do you figure this problem out and what is the formula?

How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 88.1 moles of wa?

How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 88.1 MOLES of water vapor?

How many grams each of hydrogen gas and oxygen gas are required to produce 4.50 mol of water?

im new to chemistry and need help with this problem. please help

How many grams each of hydrogen gas and oxygen gas are required to produce 4.50 mol of water?

How many liters of hydrogen gas is formed from the complete reaction of 14.5 ? Assume that the hydrogen gas i?

How many liters of hydrogen gas is formed from the complete reaction of 14.5 ? Assume that the hydrogen gas is collected at a pressure of 1.0 and a temperature of 360 .

How to many moles of hydrogen gas are produced in the reaction of 100. g calcium hydride with water?

The reaction of calcium hydride with water can be used to prepare hydrogen gas.

Please help me with my chemistry. Im having a hard time.

how many tanks on 1983 jamboree motorhome?

My brother just bought a 1983 ford jamboree and say he has 4 tanks not including the gas tank. he say it has 2 fresh water tanks and 1 blackwater and 1 greywater tank. is this correct? Thanks for any help.
so what you’re saying it has 4 tanks 2 waste and 2 fresh water right. if so why do the gauges read tank 1 tank 2 gauge but only 1 fresh water gauge?