Stoichiometry If 1.5 moles of oxygen combines with aluminium to form Al2O₃, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm. 2.7 5.4 54 27 2.7 5.4 54 27 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry pH value of H₂SO₄ (5% concentration) is 5 7 < 7 > 7 5 7 < 7 > 7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40) 2240 4480 1120 0.4 2240 4480 1120 0.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is __________ kg mole. 44 16 1 44 16 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to X1/x2 1 - (x1/x2) 1/x2 X2/x1 X1/x2 1 - (x1/x2) 1/x2 X2/x1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will Decrease three fold Increase three fold Increase nine fold Remain unaltered Decrease three fold Increase three fold Increase nine fold Remain unaltered ANSWER DOWNLOAD EXAMIANS APP
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