Short Answer TypeExplain how you can determine the atomic mass of an unknown metal if you know its mass density and the dimensions of a unit cell of its crystal.
By knowing the density of an unknown metal and the dimension of its unit cell, the atomic mass of the metal can be determined.
Let ‘a’ be the edge length of a unit cell of a crystal, ‘d’’ be the density of the metal, ‘m’ be the atomic mass of the metal and ‘z ’ be the number of atoms in the unit cell.
Differentiate between molarity and molality values for a solution. What is the effect of change in temperature on molarity and molality values?
The thermal decomposition of HCO2H is a first-order reaction with a rate constant of 2.4 x 10-3 s-1 at a certain temperature. Calculate how long will it take for three-fourths of the initial quantity of HCO2H to decompose.
(log 0.25 = - 0.6021)
What do you understand by the rate law and rate constant of a reaction?
Identify the order of a reaction if the units of its rate constant are:
(i) L-1 mol s-1
(ii) L mol-1 s-1Describe the principle controlling each of the following processes:
(i) Preparation of cast iron form pig iron.
(ii) Preparation of pure alumina (Al2O3) from bauxite ore.
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