Question

the balanced equation of the formation of water is given to 2 H2 + O2 gives to 2H2O

how many more of water can be made using 1 Mol of hydrogen .?
how many gram of oxygen is needed for reacting 2 gram hydrogen.?
how many gram of oxygen is needed to obtain 18 gram of water .?​

Answer 1

Answer:

1. The ratio of hydrogen atoms to oxygen atoms used to make water molecules is always 2:1, no matter how many water molecules are being made.

2. 1 mole of water requires 1 mole of hydrogen (H2) and 0.5 moles of oxygen (O2). This requires 100/18 moles of hydrogen. As the molar mass of hydrogen is 2, it requires 200/18 = 100/9 g of hydrogen. It requires 100/9 g of hydrogen gas and 800/9 g of oxygen gas to make 100 g of water.Sep 5, 2012

3.There are 16 grams of oxygen in 18 grams of water. We can see from the formula for water, H2O, there are twice as many hydrogen atoms (each of atomic mass 1) as oxygen atoms (each of atomic mass 16).

Explanation:

okay