Stoichiometry If the pH value of a solution changes by one unit, it implies that hydrogen ion concentration in the solution will change __________ times. 20 70 100 10 20 70 100 10 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The elevation in boiling point of a solution is proportional to the __________ of the solution. Molarity Reciprocal of the molal concentration Normality Molal concentration Molarity Reciprocal of the molal concentration Normality Molal concentration ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a temperature of 0°K, the molecules of a gas have only __________ energy. Vibrational None of these Translational Rotational Vibrational None of these Translational Rotational ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be 0°K - 136.5°K -136.5°C -273°C 0°K - 136.5°K -136.5°C -273°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One of the specific gravity scales is "Brix" (used speicifically for sugar solution). It is defined as Brix = 145 - (145/G) Brix = 200 (G-1) None of these Brix = (400/G) - 400 Brix = 145 - (145/G) Brix = 200 (G-1) None of these Brix = (400/G) - 400 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about 0.40 0.19 0.67 0.33 0.40 0.19 0.67 0.33 ANSWER DOWNLOAD EXAMIANS APP
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