Stoichiometry 80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is 0.18 0.24 1 0.18 0.24 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is an exothermic reaction? None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Solutions having the same osmotic pressure are called __________ solutions. Isotonic Ideal Dilute Saturated Isotonic Ideal Dilute Saturated ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is 100°C Less than 80.1°C 80.1°C Greater than 80.1°C but less than 100°C 100°C Less than 80.1°C 80.1°C Greater than 80.1°C but less than 100°C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry How much O₂ can be obtained from 90 kg of water? 90 kg 80 kg 32 kg 64 kg 90 kg 80 kg 32 kg 64 kg ANSWER DOWNLOAD EXAMIANS APP
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) 345 485 140 350 345 485 140 350 ANSWER DOWNLOAD EXAMIANS APP
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