Questions: 10 Which of the following describes the contents of one mole of water? Two moles of hydrogen and no moles of oxygen Two moles of hydrogen and one mole of oxygen Two moles of hydrogen and two moles of oxygen One mole of hydrogen and one mole of oxygen

10 Which of the following describes the contents of one mole of water? Two moles of hydrogen and no moles of oxygen Two moles of hydrogen and one mole of oxygen Two moles of hydrogen and two moles of oxygen One mole of hydrogen and one mole of oxygen
Transcript text: 10 Which of the following describes the contents of one mole of water? Two moles of hydrogen and no moles of oxygen Two moles of hydrogen and one mole of oxygen Two moles of hydrogen and two moles of oxygen One mole of hydrogen and one mole of oxygen
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Solution

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Solution Steps

Step 1: Understanding the Composition of Water

Water is a chemical compound with the formula \( \text{H}_2\text{O} \). This indicates that each molecule of water consists of two hydrogen atoms and one oxygen atom.

Step 2: Relating Molecules to Moles

A mole is a unit in chemistry that represents \( 6.022 \times 10^{23} \) entities (Avogadro's number). Therefore, one mole of water (\(\text{H}_2\text{O}\)) contains \( 6.022 \times 10^{23} \) molecules of water.

Step 3: Determining the Moles of Atoms in One Mole of Water

Since each molecule of water contains two hydrogen atoms and one oxygen atom, one mole of water will contain:

  • Two moles of hydrogen atoms (since there are two hydrogen atoms per molecule).
  • One mole of oxygen atoms (since there is one oxygen atom per molecule).

Final Answer

The correct description of the contents of one mole of water is:
\(\boxed{\text{Two moles of hydrogen and one mole of oxygen}}\)

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