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 0.24 1 0.18 0.24 1 0.18 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Pick out the wrong unit conversion of temperature. °C = (F- 32) x 0.555 Temperature difference of 1°K = 1°C = 9/5 °F °R = 273 + °F °F = (°C + 17.778) x 1.8 °C = (F- 32) x 0.555 Temperature difference of 1°K = 1°C = 9/5 °F °R = 273 + °F °F = (°C + 17.778) x 1.8 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent. Equal to Either more or less; depends on the solvent More than Less than Equal to Either more or less; depends on the solvent More than Less than ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)? AB₂ A₂B AB₃ A₂B₃ AB₂ A₂B AB₃ A₂B₃ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In the reaction, represented by Na₂CO₃ + HC₁ → NaHO₃ + NaCl, the equivalent weight of Na₂CO₃ is 10.6 5.3 53 106 10.6 5.3 53 106 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces? RT 1/RT (p +a/v²) (V - b) RT 1/RT (p +a/v²) (V - b) ANSWER DOWNLOAD EXAMIANS APP
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