Stoichiometry With increase in the temperature of pure (distilled) water, its POH and pH both 4ecreases POH decreases and pH increases PH and pOH both increases PH decreases and pOH increases POH and pH both 4ecreases POH decreases and pH increases PH and pOH both increases PH decreases and pOH increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If pH value of a solution is 8, then its pOH value will be 7 1 10 6 7 1 10 6 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) 485 345 140 350 485 345 140 350 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of Adsorption Complete wetting Mixing Wetting Adsorption Complete wetting Mixing Wetting ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a solvent produces a __________ in its solvent. Vapor pressure lowering All of these Boiling point depression Freezing point elevation Vapor pressure lowering All of these Boiling point depression Freezing point elevation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is 0.2 0.6 0.8 0.4 0.2 0.6 0.8 0.4 ANSWER DOWNLOAD EXAMIANS APP
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