how many grams of oxygen are required to react completely with 5.56 moles of hydrogen to form water?
2H2 + O2. 2H2O
88.96g
To determine the number of grams of oxygen required to react completely with 5.56 moles of hydrogen, we need to use the balanced chemical equation and the molar ratios.
From the balanced equation: 2H2 + O2 -> 2H2O
We can see that for every 2 moles of hydrogen, we need 1 mole of oxygen. Therefore, the molar ratio of hydrogen to oxygen is 2:1.
Step 1: Convert moles of hydrogen (H2) to moles of oxygen (O2)
Since the ratio of H2 to O2 is 2:1, we can determine the number of moles of oxygen by dividing the moles of hydrogen by 2:
5.56 moles H2 / 2 = 2.78 moles O2
Step 2: Convert moles of oxygen (O2) to grams of oxygen
To convert moles to grams, we need to use the molar mass of oxygen, which is approximately 32 g/mol.
2.78 moles O2 x 32 g/mol = 89.6 grams of O2
Therefore, approximately 89.6 grams of oxygen are required to react completely with 5.56 moles of hydrogen to form water.
To determine the number of grams of oxygen required to react completely with hydrogen, we need to use the molar ratios from the balanced chemical equation.
The balanced equation shows that 2 moles of hydrogen react with 1 mole of oxygen to form 2 moles of water. Therefore, the molar ratio between hydrogen and oxygen is 2:1.
First, we need to calculate the moles of oxygen required to react completely with 5.56 moles of hydrogen. Since the molar ratio between hydrogen and oxygen is 2:1, we can use stoichiometry to calculate the moles of oxygen.
Moles of oxygen = (moles of hydrogen) / (molar ratio)
= 5.56 moles / 2
= 2.78 moles
Now, to convert the moles of oxygen into grams, we need to use the molar mass of oxygen, which is approximately 32 g/mol.
Mass of oxygen = (moles of oxygen) × (molar mass of oxygen)
= 2.78 moles × 32 g/mol
= 88.96 grams
Therefore, 88.96 grams of oxygen are required to react completely with 5.56 moles of hydrogen to form water.
2H2 + O2 ==> 2H2O
5.56 mols H2 will require 1/2 that or 5.56/2 = 2.78 mols O2.
grams O2 = mols O2 x molar mass O2 = ?