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Stoichiometry

Stoichiometry
Isotonic solutions must have the same

Normality
Viscosity
Critical temperature
Molar concentration

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Stoichiometry
A butane isomerisation process produces 70 kmole/hr of pure isobutane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be

4 kmole/hr
3 kmole/hr
6 kmole/hr
5 kmole/hr

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Stoichiometry
The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm.

0.065
6.5
65
0.65

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Stoichiometry
Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

Greater than 80.1°C but less than 100°C
Less than 80.1°C
80.1°C
100°C

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Stoichiometry
'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the

Vapor pressure vs. temperature
Temperature vs. log (vapor pressure)
Log (temperature) vs. log (vapor pressure)
Vapor pressure vs. log (temperature)

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Stoichiometry
'Giga' stands for

109
44116
1012
1015

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