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) 350 485 345 140 350 485 345 140 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Both A & B Below the critical temperature At pressure below one atmosphere Neither A nor B Both A & B Below the critical temperature At pressure below one atmosphere Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is 720 60.3 180 200 720 60.3 180 200 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat capacity of most substances is greater for the __________ state. Solid Liquid Gaseous None of these Solid Liquid Gaseous None of these 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 Of the same acidity Basic More acidic Neutral Of the same acidity Basic More acidic ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure. Kg-mole of solute/kg-mole of solvent Kg-mole of solute/1000 kg of solvent Kg of solute/kg of solvent All of these Kg-mole of solute/kg-mole of solvent Kg-mole of solute/1000 kg of solvent Kg of solute/kg of solvent All of these ANSWER DOWNLOAD EXAMIANS APP
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