\(2.5\times 10^{23}\)
\(1.5\times 10^{23}\)
\(1.5\times 10^{24}\)
\(2.5\times 10^{24}\)
Correct answer is C
1 mole = \(6.02 \times 10^{23}\)
2.5 moles = \(6.02 \times 10^{23} \times 2.5\)
= \(15.05 \times 10^{23} = 1.505 \times 10^{24}\)
\(\approxeq 1.5 \times 10^{24}\)