(i) In general, when a molecule absorbs a UV-visible photon, an electron is promoted from one of the occupied molecular orbitals to an unoccupied molecular orbital at higher energy.
(ii) …
The answer is RuBisCo (or simply Rubisco). This enzyme helps in the formation of two 3-carbon molecules = glyceraldehyde-3-phosphate (G3P) from a pentose. The process involves the fixation of CO2 …
Translation is the process of production of protein from a mRNA template, with the help of the rRNA and tRNA.
Carbon dioxide causes global warming which consequently leads to enhanced melting of polar ice caps and rising sea levels.
Carbon particles lead to formation of smog which blocks out sunlight …
The evolution of heat from a reaction is often classified as being exothermic or endothermic, but how do you know which one it is in order to assign the appropriate …
As you go down the group, there is an additional electron shell added each time (1). These electron shells hold negatively charged electrons that shield the positive nucleus from the …
The limiting reagent is the chemical substance that isn't in excess in the reaction compared to the other components. The way to calculate which reagent limits the reaction and how …
Using le Chatelier's principle that when a change occurs in a system at equilibrium the system will counteract the change to establish a new equilibrium we can answer this question. …
Hydrogen bonding is a type of dipole-dipole interaction (dipole being when a molecule has unequal sharing of electrons across a bond). It is a particularly strong type dipole-dipole interaction and …
a.) Ionisation energy is the energy required to remove the most loosely bound electron from an element.b.) Ionisation energy decreases down a group due to increasing electron shielding, this decreases …
Reaction equation:cinnamic acid + methanol --> methyl cinnamate (+ water).Determine the limiting reagent:Calculate the number of moles of each reagent using the triangle g/(GFM)*(n).n = g/GFM cinnamic acid: n = …
The breakdown of any product using water is called a hydrolysis reaction.Ester + Water ---> Alcohol + Carboxylic acidAn ester splits into alcohol and carboxylic acid during its …
A paramagnetic complex is any complex that has at least one unpaired electron.[Fe(H2O)6]2+ is paramagnetic since H2O is a weak field ligand, this means there is a small energy gap …
There are two reasons: increasing atomic size and increasing shielding effect.Increasing atomic size - As you go down the Group, the atom size becomes larger, therefore the electron that …
Although it can seem a unusual question it simply requires to have understood the basis of a titration.
First of all, what is a pH indicator? It is simply an …
The ideal gas equation is given by pV = nRT, where p is pressure of the gas, V = volume, n = molar amount, T = temperature (in Kelvin!) and …
The Van der Waals force is the weakest of all the intermolecular forces. This interaction occurs between every molecule, over very small distances, and becomes weaker the further away the …
The rate of a reaction increases if:the temperature is increasedthe concentration of a dissolved reactant is increasedsolid reactants are broken into smaller piecesa catalyst is used
Firstly, using Beer-Lambert's equation. It is noted, that absorption is equal to the molar extinction coefficient, multiplied by the path length of light, multiplied by the concentration of the solution.Therefore, …
The acronym VSEPR is short for 'Valence Shell Electron Pair Repulsion'. Consequently, the VSEPR theory is about the repulsion effect of the most chemically important valence electrons and the influence …