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Stoichiometry

Stoichiometry
CaCO₃ contains __________ percent of Ca by weight.

48
96
40
12

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Stoichiometry
A bypass stream in a chemical process is useful, because it

None of these
Increases the yield of products
Improves the conversion
Facilitates better control of the process

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Stoichiometry
Concentration of a solution expressed in terms of __________ is independent of temperature.

Molality
Normality
Molarity
None of these

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Stoichiometry
1 torr is equivalent to

1 mm Hg
1 Pascal
1 ata
1 mm wc

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Stoichiometry
Heat of solution in a system in which both solute and solvent are liquids is termed as

Heat of hydration
Heat of mixing
Standard integral heat of solution
Heat of solvation

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Stoichiometry
S.T.P. corresponds to

1 atm. absolute pressure & 15.5°C
101.325 kPa gauge pressure & 15.5°C
760 mm Hg gauge pressure & 15.5°C
760 torr & 0°C

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