How many moles of O are in 0.50 moles of H2O2?

Answer 1

The chemical equation for hydrogen gas and oxygen gas combining to form water is as follows: 2H2 (g) + O2 (g) ---> 2H2O (l). This means that for every 1 mole of oxygen gas reacting, two moles of hydrogen gas are needed. So if 0.50 moles of oxygen gas react to form one mole of water, then one mole of hydrogen gas was used.

Answer 2

Well calculate it out. You know that there are 6.02X10^23 atoms in a mole. You know that hydrogen has a GMW of 1.0 and oxygen has a GMW of 16. You know that water is H2O. You know, therefore how much a mole of water weighs. You also know that the specific gravity (in this case SG=Density) is 1 g/ml. Now you have all you need to know to derived the answer. We aren't here to do your homework for you.

Answer 3

Balanced equation first.

2H2 + O2 -> 2H2O

0.50 moles O2 (2 mole H2/1 mole O2)

= 1 mole H2

But your question said to produce 1 mole H2O, so you may have to divide that answer in half.

Answer 4

2 atoms (molecules) of hydrogen are needed to react with oxygen to form water.

Answer 5

0.45 mol O x 1 mol H2O x 2 mol H x 1.0079g =0.90711g H

1 mol O 1 mol H2O 1 mol H

Answer 6

Balanced equation first.

2C2H2 + 5O2 -> 4CO2 + 2H2O

They are 1 to 1, so..........

0.50 moles H2O ( 2 mole C2H2/2 mole H2O)

0.50 moles C2H2 needed

Answer 7

The molecular formula of water is H2O, showing that each molecule of water contains one oxygen atom. Therefore, 0.5 moles of water will contain 0.5 moles of oxygen atoms.

Answer 8

This is one to one.

0.50 moles H2O (1 mole O/1 mole H2O)

= 0.50 mole oxygen

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Answer 9

The answer is 0,5 moles oxygen.

Answer 10

.5?