What is the mass of water produced when 2 moles of hydrogen react with 1 mole of oxygen?
Practice Questions
1 question
Q1
What is the mass of water produced when 2 moles of hydrogen react with 1 mole of oxygen?
18 g
36 g
54 g
9 g
2 moles of H2 produce 2 moles of H2O. Mass of H2O = 2 moles * 18 g/mole = 36 g.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the mass of water produced when 2 moles of hydrogen react with 1 mole of oxygen?
Solution: 2 moles of H2 produce 2 moles of H2O. Mass of H2O = 2 moles * 18 g/mole = 36 g.
Steps: 5
Step 1: Understand the reaction. When hydrogen (H2) reacts with oxygen (O2), they produce water (H2O). The balanced chemical equation is: 2 H2 + O2 -> 2 H2O.
Step 2: Identify the amount of hydrogen and oxygen. We have 2 moles of hydrogen (H2) and 1 mole of oxygen (O2).
Step 3: Determine how much water is produced. According to the balanced equation, 2 moles of H2 produce 2 moles of H2O.
Step 4: Calculate the mass of water produced. The molar mass of water (H2O) is 18 grams per mole.
Step 5: Multiply the number of moles of water by its molar mass. So, 2 moles of H2O * 18 g/mole = 36 grams of water.
