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Chemistry
Calculate the amount of calcium oxide (in grams) required when it reacts with 852 g of P4O10.
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Q. Calculate the amount of calcium oxide (in grams) required when it reacts with 852 g of P
4
O
10
.
NTA Abhyas
NTA Abhyas 2020
Redox Reactions
A
B
C
D
Solution:
$6 \mathrm{CaO}+\mathrm{P}_4 \mathrm{O}_{10} \longrightarrow 2 \mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2$
1 Mole P
4
O
10
= 284 g/mole
Moles of P
4
O
10
= $\frac{8 5 2}{2 8 4}$ = 3 moles
Moles of CaO = 18 moles
Mass of CaO = 18 x 56 = 1008 g