Question

a) how many atoms of h are in a molecule of c₆h₁₂o₆?
b) how many moles of h atoms are in a mole of c₆h₁₂o₆ molecules?
c) how many atoms of h are in a mole of c₆h₁₂o₆ molecules?

Explanation:

Part (a)

Step1: Analyze the molecular formula

The molecular formula is \( C_6H_{12}O_6 \). The subscript of H in the formula represents the number of H atoms in one molecule.

Step2: Identify the number of H atoms

In \( C_6H_{12}O_6 \), the subscript of H is 12. So, there are 12 H atoms in one molecule.

Step1: Analyze the molecular formula for moles

In one molecule of \( C_6H_{12}O_6 \), there are 12 H atoms. For moles, the number of moles of H atoms in one mole of \( C_6H_{12}O_6 \) molecules is equal to the number of H atoms per molecule (in terms of moles).

Step2: Determine moles of H

Since one molecule has 12 H atoms, one mole of \( C_6H_{12}O_6 \) molecules will have 12 moles of H atoms.

Step1: Recall Avogadro's number

Avogadro's number is \( 6.022\times 10^{23} \) atoms/mole (or molecules/mole).

Step2: Use moles of H from part (b)

From part (b), we know that one mole of \( C_6H_{12}O_6 \) has 12 moles of H atoms. To find the number of H atoms, we multiply the number of moles of H by Avogadro's number.
The number of H atoms \( = 12\space mol\times6.022\times 10^{23}\space atoms/mol \)

Step3: Calculate the number of H atoms

\( 12\times6.022\times 10^{23}=7.2264\times 10^{24} \) (approx \( 7.23\times 10^{24} \))

Answer:

12

Part (b)