Question

How many coulombs of positive charge are there in 3.60 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons?

Answer 1

1 mole of plutonium = 244 gm

3.6 kg of plutonium = 3.6 × 1000 = 3600 gm

Number of moles = 3600 ÷ 244 = 14.754 moles

One moles of plutonium contains protons = $\( 6.023 \times {10}^{23} \times 94 \)$

Total number of protons in 14.754 moles = $\( 6.023 \times {10}^{23} \times 94 \times 14.754 \)$

Total number of protons in 14.754 moles = $\(8353.15 \times {10}^{23}\)$

Total Positive charge = $\(8353.15 \times {10}^{23} \times 1.6 \times {10}^{-19}\)$

Total positive charge = $\(13365.04 \times {10}^{4}\)$ C