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) 350 345 485 140 350 345 485 140 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO₂, 0.05 gm mole of oxygen and 0.80 gm mole of N₂. What is its molecular weight? 30.6 32.6 28.6 30 30.6 32.6 28.6 30 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Cp - Cv, for an ideal gas is equal to 3R R/2 R 2R 3R R/2 R 2R ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Increasing the temperature of an aqueous solution will cause decrease in its Weight percent Mole fraction Molarity Molality Weight percent Mole fraction Molarity Molality ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With rise in temperature, the heat capacity of a substance Increases Remains unchanged Decreases Either A or B; depends on the substance Increases Remains unchanged Decreases Either A or B; depends on the substance ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a pure solvent Decreases its freezing point Increases its freezing point Both B and C Increases its boiling point Decreases its freezing point Increases its freezing point Both B and C Increases its boiling point ANSWER DOWNLOAD EXAMIANS APP
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