Stoichiometry 1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is C2H33OH C₄H9OH C₃H21OH (C₂H₄)2H₂.OH C2H33OH C₄H9OH C₃H21OH (C₂H₄)2H₂.OH ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases. Potential energy Intermolecular forces Kinetic energy Total energy Potential energy Intermolecular forces Kinetic energy Total energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Viscosity of atmospheric air may be about __________ centipoise. 15 0.015 150 1.5 15 0.015 150 1.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water Xw in the vapour phase satisfies 0.5 < Xw < 1.0 0 < Xw < 0.5 Xw = 1.0 Xw = 0.5 0.5 < Xw < 1.0 0 < Xw < 0.5 Xw = 1.0 Xw = 0.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because Only OH⁻ and H⁺ ions react in every case The salt formed does not hydrolyse The strong base and strong acid reacts completely The strong base and strong acid reacts in aqueous solution Only OH⁻ and H⁺ ions react in every case The salt formed does not hydrolyse The strong base and strong acid reacts completely The strong base and strong acid reacts in aqueous solution ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following expressions defines the Baume gravity scale for liquids lighter than water? °Be = 200(G-1) °Be = 145 - (145/G) °Be = (140/G) - 130 °Be = (400/G) - 400 °Be = 200(G-1) °Be = 145 - (145/G) °Be = (140/G) - 130 °Be = (400/G) - 400 ANSWER DOWNLOAD EXAMIANS APP
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