6) How many moles of SO2, have same mass as 3 moles of oxygen?
Answers
Answer:
Given:
Two chemicals = and O
Number of moles of oxygen = 3
To find:
Number of moles of in 3 moles of Oxygen
Calculation:
Step 1:
Calculation of the molar mass of given chemicals
Molar mass of = 1(S) + 2(O) = 1 (32) + 2 (16) = 32+32 = 64g.
Molar mass of Oxygen = 16g
Step 2:
Calculation of 1 moles of the given substance
1 mole of substance = Molar mass of the substance.
∴ 1 mole of = 64g
3 mole of oxygen = 16×3 = 48g
Step 3:
Calculation of number of moles of with same mass of 3 moles of oxygen
64 g of = 1 mole
∴ 48 g of = x
On cross multiplication:
x × 64 = 1 × 48
x =
x =
x = 0.75 moles
Conclusion:
0.75 moles of have same mass as 3 moles of oxygen.
Learn more about such concept
The number of moles of ammonia that have the same mass as that of 3 moles of carbon dioxide is
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Verify the following:
a) 5 moles of carbon dioxide and 5 moles of water do not have same mass.
b) 240g of calcium and 240g of magnesium elements have a mole ratio 3:5
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Explanation:
Answer:
mass of 1 mole of oxygen gas is 32
mass of 3 moles is 96
mass of one mole of so2 gas is 64
moles of SO2 gas required is 96/64=1.5