Physical Chemistry Answers

The law which states that the pressure or fugacity of a single phase mixture is equal to the mole weighted sum of the component pressure is

how many grams of AgCl will precipitate if 5.8g of 0.1M NaCl is added to the saturated soln of AgCl

An element X binds with oxygen and CO present in air as


when X at 1 atm is treated with air, 25% of it is bound to CO(g). The partial pressure of CO(g) in air at equilibrium, if partial pressure of O2(g) in air at equilibrium is 0.2 atm, would be
(a) 1.9 × 10–4 atm
(b) 1.9 × 104 atm
(c) 2.08 × 10–4 atm
(d) 2.08 × 104 atm

The emf of cell Ag|AgSO4 (0.0083M) || AgSO4 (xM)| Ag is 0.074V at 250C. Find the value of X

a compound used in making nylon,contains 43.8% oxygen.there are four oxygen atoms per molecule. the molecule mass of compound

A quantity of 1g of metallic carbonate XCO3 is completely converted into a chloride XCL2 weighing 1.11g.The atomic mass of elements X is....

Calculate the molar conductivity at infinite dilution (ꓥ°) for potassium ethanoate (CH3COOK) from the following ꓥ° data using Kohlrausch’s Law:

HBr
385 S cm2 mol-1
KBr
106 S cm2 mol-1
CH3COOH
391 S cm2 mol-1

150g of a gas at 10.0°C and 1.0 atm pressure occupies 913L volume. The volume of the gas increases to 988L and its temperature increases to 41.5°C while the pressure remains constant. Calculate ΔE, q and w for the gas. (Specific heat of the gas = 5.2J/g°C and 1L.atm = 101.3J).

The pressure that is required to liquefy a gas at its critical temperature is called its ____

Calculate the conc. Of ca2+ in ppm if 2mg ca2+ are present in 500 g solution?