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Tamiku [17]
3 years ago
11

Calculate the number of moles in 7.04 g of lead (II) nitrate, Pb(NO3)2

Chemistry
1 answer:
MrRa [10]3 years ago
7 0

Answer:

moles Pb(NO₃)₂ ≅ 0.0213 mole (three sig. figs.)

Explanation:

converting...

grams to moles => divide by formula weight

moles to grams => multiply by formula weight

for this problem ...

moles Pb(NO₃)₂ = 7.04g / 331.2g/mol = 0.021256 (calculator answer)

≅ 0.0213 mole (three sig. figs.)

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