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) 485 345 350 140 485 345 350 140 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following expressions defines the Baume gravity scale for liquids heavier than water? (400/G) - 400 200(G-1) (141.5/G) - 131.5 145 - (145/G) (400/G) - 400 200(G-1) (141.5/G) - 131.5 145 - (145/G) ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The effect of pressure on the heat capacity of the gases __________ is negligible. Both A & B At pressure below one atmosphere Below the critical temperature Neither A nor B Both A & B At pressure below one atmosphere Below the critical temperature Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the Experimental data Phase rule Emperical equations Theoretical equations Experimental data Phase rule Emperical equations Theoretical equations ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of reaction is not influenced by The physical state (e.g., solid, liquid or gaseous) of reactants and products The route/method through which final products are obtained Whether the reaction is carried out at constant temperature or constant pressure None of these The physical state (e.g., solid, liquid or gaseous) of reactants and products The route/method through which final products are obtained Whether the reaction is carried out at constant temperature or constant pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following gases is the most soluble in water? H₂S NH₃ CO₂ CH₄ H₂S NH₃ CO₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP
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