\(1.2 \times 10^{22}\)
\(1.2 \times 10^{23}\)
\(2.4 \times 10^{22}\)
\(2.4 \times 10^{23}\)
Correct answer is A
\(1mole = 6.02 \times 10^{23} ions\)
\(0.02moldm^{-3} = 0.02 \times 6.02 \times 10^{23}\)
=\(0.1204 \times 10^{23} = 1.204 \times 10^{22}\)
\(\approxeq 1.2 \times 10^{22}\)