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) 345 485 350 140 345 485 350 140 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The hydroxyl ion (OH?) concentration in a solution having pH value 3 will be 10?? 10?? ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The most convenient way of expressing solution concentration is in terms of Molality Molarity Mole fraction Normality Molality Molarity Mole fraction Normality ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by Increasing the concentration of N₂ Decrease in pressure Decrease in temperature Increase in pressure Increasing the concentration of N₂ Decrease in pressure Decrease in temperature Increase in pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of __________ of a fuel is called its calorific value. Reaction Combustion Vaporisation Formation Reaction Combustion Vaporisation Formation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kopp's rule is concerned with the calculation of Heat capacity Viscosity Thermal conductivity Surface tension Heat capacity Viscosity Thermal conductivity Surface tension ANSWER DOWNLOAD EXAMIANS APP
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