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Dahasolnce [82]
3 years ago
6

It takes one oxygen to combine with two hydrogen atoms to form water. What is the mass ratio of oxygen to hydrogen? 1 to 2 4 to

1 8 to 1 2 to 1
Chemistry
1 answer:
Rasek [7]3 years ago
8 0

Answer:

8 to 1.

Explanation:

  • Oxygen combines with hydrogen atoms to form water according to the balanced equation:

<em>O₂ + 2H₂ → 2H₂O.</em>

It is clear that one mole of oxygen combines with two moles of hydrogen atoms to form 2 moles of water.

So, the molar ratio of oxygen to hydrogen is (1 to 2).

  • The mass of 1 mole of oxygen = (no. of moles)(molar mass) = (1 mol)(32.0 g/mol) = 32.0 g.
  • The mass of 2 moles of hydrogen = (no. of moles)(molar mass) = (2 mol)(2.0 g/mol) = 4.0 g.

<em>So, the mass ratio of oxygen to hydrogen (32.0 g/4.0 g) = (8: 1).</em>

<em></em>

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The number of moles of water present in 1.00 × 10²⁷ molecules, n = (The number of molecules of water) ÷ N_A

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The mass, 'm', of water in 1,660.53902857 moles of water is given as follows;

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