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) 350 345 140 485 350 345 140 485 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 torr is equivalent to 1 mm Hg 1 mm wc 1 ata 1 Pascal 1 mm Hg 1 mm wc 1 ata 1 Pascal 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) 0.4 4480 1120 2240 0.4 4480 1120 2240 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry An azeotropic solution of two liquids has boiling point lower than either of them, when it Shows negative deviation from Raoult's law Is unsaturated Is saturated Shows positive deviation from Raoult's law Shows negative deviation from Raoult's law Is unsaturated Is saturated Shows positive deviation from Raoult's law ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor. Superheated Unsaturated Dry gaseous Saturated Superheated Unsaturated Dry gaseous Saturated ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Enthalpy of a vapor gas mixture may be increased by increasing the Temperature at constant humidity Temperature and the humidity Humidity at constant temperature All of these Temperature at constant humidity Temperature and the humidity Humidity at constant temperature All of these ANSWER DOWNLOAD EXAMIANS APP
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