Stoichiometry If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is __________ times. 100 10 1000 10000 100 10 1000 10000 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H₂ produced will be __________ gm. gm. 1 0.5 3 5 1 0.5 3 5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry CaCO₃ contains __________ percent of Ca by weight. 96 12 40 48 96 12 40 48 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 kg of calcium carbide (CaC₂) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour? 5 15 10 20 5 15 10 20 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is Halved Doubled Trebled Unpredictable Halved Doubled Trebled Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1m³ is approximately equal to 28 litres 4.5 ft³ 4.5 litres 35 ft³ 28 litres 4.5 ft³ 4.5 litres 35 ft³ ANSWER DOWNLOAD EXAMIANS APP
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