what is the mass in gram of 1.0 × 10 ^ 12 lead (pb) atomic ? ( atomic mass of mercury = 207
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Explanation:
Explanation:
4.22
x
10
23
6.022
x
10
23
=
.7008
m
o
l
P
b
.7008
m
o
l
P
b
(
207.2
g
m
o
l
)
=145.198
The answer is significant to three digits so rounded this would be 145 g Pb
We divide by Avogadro's number in the first step since per mole there are
6.022
x
10
23
atoms then from mols use the molar mass of lead to find how many grams of lead.
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