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) 485 350 345 140 485 350 345 140 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 2 litres of nitrogen at N.T.P. weighs __________ gms. 1.25 14 28 2.5 1.25 14 28 2.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kinetic theory of gases stipulates that, the Absolute temperature is a measure of the kinetic energy of molecules None of these Energy is lost during molecular collisions Molecules possess appreciable volume Absolute temperature is a measure of the kinetic energy of molecules None of these Energy is lost during molecular collisions Molecules possess appreciable volume ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Number of gm moles of solute dissolved in one litre of a solution is called its Molarity Molality Equivalent weight Normality Molarity Molality Equivalent weight Normality ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be 14 10 7 14 10 7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant? 100°C 200°C 273°K 273°C 100°C 200°C 273°K 273°C ANSWER DOWNLOAD EXAMIANS APP
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