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Stoichiometry

Stoichiometry
An aqueous solution of 2.45% by weight H₂SO₄ has a specific gravity of 1.011. The composition expressed in normality is

0.2528
0.5055
0.25
0.5

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Stoichiometry
Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C).

°API = 200(G - 1)
°API = (140/G) - 130
°API = (141.5/G) - 131.5
°API = 145 - (145/G)

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Stoichiometry
Which of the following ideal gas laws are not applicable to mixture of gases ?

None of these
Boyle's law & Charle's Law
Dalton's law
Amgat's law

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Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

0°C
0°K
-136.5°K
-136.5°C

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Stoichiometry
Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is

20
58.65
45.35
32.2

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Stoichiometry
Cp/Cv for monoatomic gases is

1.66
1.99
1
1.44

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