Question In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is the number of molecules in 100 moles in scientific notation?(1 point) Responses

Question

25\times10^{6.02}
6.02\times25
6.02\times10^{25}
6.02+10^{25}

Answer 1

The number of molecules in 100 moles is calculated using Avogadro's number, which is approximately \(6.02 \times 10^{23}\) molecules per mole. Therefore, for 100 moles, the calculation would be:

\[ 100 , \text{moles} \times 6.02 \times 10^{23} , \text{molecules/mole} = 6.02 \times 10^{25} , \text{molecules} \]

So, the correct answer in scientific notation is:

6.02 × 10^{25}