The probability P that an electron is a distance r from the nucleus is called the radial distribution function. The hydrogen atom’s is electron radial......

A polyene molecule is a linear hydrocarbon chain of alternating single and double bonded C-atoms. Polyene molecules are important in biological processes and below Figure......

The enthalpy of a molecule, H, changes by dH when the temperature, T, changes by dT and the change is commonly given as a polynomial......

We have one mole of ideal gas at an initial volume of 4.90×103 cm3 which expands to a final volume of 2.45×104 cm3 at a......

In Chemistry it is very common to have gases being formed, reacting, compressed or expanding. A simple way of understanding such processes is to begin......

If the overall (or stoichiometric) reaction is two molecules of A reacting to give products 2A → P with rate constant k then for some......

The decay of a radioactive element A → P has a rate constant k. Radioactive decay is a first-order chemical reaction with [A] and t......

[B] = [A]0 [k1 /(k2 – k1) (e-k1t – e-k2t) By consideration of each of the terms of the equation find approximate expressions for [B]......

[B] = [A]0 [k1 /(k2 – k1) (e-k1t – e-k2t) By consideration of each of the terms in the equation show that if k2 is......

Two chemical reactions consecutively follow on from one another. Consecutive reactions are generally very common in biochemistry and organic chemistry. K1 k2 A → B......

The rate constant k for a chemical reaction is related to the temperature T by the Arrhenius equation. k = Ae– (Ea/RT) Where A and......

The pH of a solution in which the hydrogen ion concentration is [H] is defined by: pH = – log[H+] Firstly, show that d(pH)/d[H+] arising......

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