Does food passes through liver, pancreas and appendix?
2 answers:
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Answer:
4.90 moles of will produce (9.8) moles of
,
(4.90) moles of and
(39.2) moles of
Explanation:
From the question we are told that
The number of moles of is
The formation reaction of is
From the reaction we see that
1 mole of is formed by 2 moles of
1 mole of
and 4
This implies that
4.90 moles of will produce (2 * 4.90) moles of
,
(1 * 4.90) moles of and
(8 * 4.90) moles of
So
4.90 moles of will produce (9.8) moles of
,
(4.90) moles of and
(39.2) moles of
Answer:
% purity of limestone = 96.53%
Explanation:
Question (4).
Weight of impure CaCO₃ = 25.9 g
Molecular weight of CaCO₃ = 40 + 12 + 3(16)
= 100 g per mole
We know at S.T.P. number of moles of CO₂ = 1 and volume = 22.4 liters
From the given reaction, 1 mole of CaCO₃ reacts with 1 mole or 22.4 liters of
CO₂.
∵ 22.4 liters of CO₂ was produced from CaCO3 = 100 g
∴ 1 liter of CO₂ will be produced by CaCO₃ =
∴ 5.6 liters of CO₂ will be produced by CaCO₃ =
= 25 g
Therefore, % purity of CaCO₃ =
=
= 96.53 %