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 A sugar solution containing __________ percent sugar is equivalent to 1 Brix. 10 0.01 0.1 1 10 0.01 0.1 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface. This statement pertaining to the solubility of gases in liquid is the __________ law. Raoult's Amgat's None of these Henry's Raoult's Amgat's None of these Henry's ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the Temperature Solute concentration Both A & B Neither A nor B Temperature Solute concentration Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is 1/3 1/2 2/3 1/4 1/3 1/2 2/3 1/4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm. 6.5 65 0.065 0.65 6.5 65 0.065 0.65 ANSWER DOWNLOAD EXAMIANS APP
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