Ask Question
23 August, 23:53

How many grams of H2O are formed from 7.8 grams of O2?

+5
Answers (1)
  1. 24 August, 01:17
    0
    Mass = 7.2 g

    Explanation:

    Given dа ta:

    Mass of water produced = ?

    Mass of oxygen = 7.8 g

    Solution:

    Chemical equation:

    2H₂ + O₂ → 2H₂O

    Number of moles of oxygen:

    Number of moles = mass / molar mass

    Number of moles = 7.8 g / 32 g/mol

    Number of moles = 0.2 mol

    Now we will compare the moles of water with oxygen.

    O₂ : H₂O

    1 : 2

    0.2 : 2*0.2 = 0.4 mol

    Mass of water:

    Mass = number of moles * number of moles

    Mass = 0.4 mol * 18 g/mol

    Mass = 7.2 g
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How many grams of H2O are formed from 7.8 grams of O2? ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers