Stoichiometry In the reaction, represented by Na₂CO₃ + HC₁ → NaHO₃ + NaCl, the equivalent weight of Na₂CO₃ is 53 5.3 10.6 106 53 5.3 10.6 106 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The evaporation of aqueous solution of sugar causes its molarity to Remain unchanged. increase. Decrease. Either A or B; depends on the concentration of the solution. Remain unchanged. increase. Decrease. Either A or B; depends on the concentration of the solution. 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). 1/Sv Sv 1/St St 1/Sv Sv 1/St St ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be Neutral More acidic Of the same acidity Basic Neutral More acidic Of the same acidity Basic ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Recycling in a chemical process facilitates Increased yield Enrichment of product All of these Heat conservation Increased yield Enrichment of product All of these Heat conservation 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 0.67 0.40 0.19 0.33 0.67 0.40 0.19 0.33 ANSWER DOWNLOAD EXAMIANS APP
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