Question

Suppose you wanted to make 100 grams of water. What is the molar mass of water (H2O)? _____________________ How many moles of water are in 100 grams? _____________________ How many moles of hydrogen will you need? _____________________ How many moles of oxygen will you need? _____________________ How many grams of hydrogen and oxygen will you need? Hydrogen: _____________________ Oxygen: _____________________

Answer 1

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.

100 g h = 50 moles hydrogen gas as weight of one mole of hydrogen gas is 2 ( mol. Weight of h is 1 and Hydrogen molecule gas 2 hydrogen.

Step-by-step explanation:

So we will get 50 moles of water

Answer 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.

100 g h = 50 moles hydrogen gas as weight of one mole of hydrogen gas is 2 ( mol. Weight of h is 1 and Hydrogen molecule gas 2 hydrogen.

So we will get 50 moles of water

2.5 moles O2

9