3. What is the number of particles in 1.5 moles of CO2?
4. What is the number of moles of Zn in 4.22x1023 atoms?
5. How many moles is 25.2 g of Fe?
4. What is the number of moles of Zn in 4.22x1023 atoms?
5. How many moles is 25.2 g of Fe?
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3. What is the number of particles in 1.5 moles of CO2? 9.033 x 1023 atoms
4. What is the number of moles of Zn in 4.22x1023 atoms? 0.7 moles
5. How many moles is 25.2 g of Fe? 0.013 moles
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
ayan po solution, sana makatulong :)