Question

how many atoms of sn are present in 7.6 moles of tin? 4.6×10²⁴ atoms sn 4.5×10⁻²⁵ atoms sn 6.02×10²³ atoms sn 1.3×10²¹ atoms sn

Explanation:

Step1: Recall Avogadro's number

Avogadro's number is \( 6.02 \times 10^{23} \) atoms per mole. To find the number of atoms, we use the formula: Number of atoms = Moles × Avogadro's number.

Step2: Substitute the values

Given moles of Sn = 7.6 mol. So, Number of atoms = \( 7.6 \, \text{mol} \times 6.02 \times 10^{23} \, \text{atoms/mol} \)

Step3: Calculate the result

\( 7.6 \times 6.02 \times 10^{23} \approx 45.752 \times 10^{23} = 4.5752 \times 10^{24} \approx 4.6 \times 10^{24} \) atoms.

Answer:

A. \( 4.6 \times 10^{24} \) atoms Sn