Stoichiometry The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times. 43832 √2 43834 4 43832 √2 43834 4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A solution with reasonably permanent pH is called a/an __________ solution. Non-ideal Buffer Colloidal Ideal Non-ideal Buffer Colloidal Ideal ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface. This statement pertaining to the solubility of gases in liquid is the __________ law. Henry's Raoult's None of these Amgat's Henry's Raoult's None of these Amgat's ANSWER DOWNLOAD EXAMIANS APP
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) 140 485 350 345 140 485 350 345 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is 0.1 1 0.065 0.1 1 0.065 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is XB.PvB PvB XB.Patm (Patm - Pvw)xB XB.PvB PvB XB.Patm (Patm - Pvw)xB ANSWER DOWNLOAD EXAMIANS APP
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