Stoichiometry If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is __________ times. 1000 10000 10 100 1000 10000 10 100 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest? 35 c.c acid and 15 c.c base 30 c.c acid and 30 c.c base 15 c.c acid and 35 c.c base 20 c.c acid and 25 c.c base 35 c.c acid and 15 c.c base 30 c.c acid and 30 c.c base 15 c.c acid and 35 c.c base 20 c.c acid and 25 c.c base ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively? 801.5 780.5 880.5 756.2 801.5 780.5 880.5 756.2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be Significantly more than 4.69 atm Significantly less than 4.69 atm Nearly equal to 4.69 atm Indeterminate due to lack of data Significantly more than 4.69 atm Significantly less than 4.69 atm Nearly equal to 4.69 atm Indeterminate due to lack of data ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Below the critical temperature At pressure below one atmosphere Both A & B Neither A nor B Below the critical temperature At pressure below one atmosphere Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Vapor pressure of a solution is proportional to(where, Sv and St are mole fraction of solvent and solute respectively). Sv 1/Sv St 1/St Sv 1/Sv St 1/St ANSWER DOWNLOAD EXAMIANS APP
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