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Azo dyes are coloured because they contain alternating single and double bonds, known as a conjugated system. This creates and areas of delocalisation above and below the plane of the molecule. This area ...

Calculating the mass of 1 molecule of ammonia:

Mass = ( Number of hydrogen atoms x Mass of hydrogen atom) + ( Number of nitrogen atoms x Mass of nitrogen atoms)

Mass = ( 3 x 1 ) + ( 1...

The experimental data given in the question will serve as a basis for comparison when answering the question. You must compare the initial rates of reaction given to the concetrations of the rectants. For...

By adding Iron (III) Chloride to the solution and if it turns purple, it means a phenol is present. 

pH is the measure of the concentration of proton in an aqueous environment, which is denoted as: pH = -log[H₃O⁺]. pKa however, is prefered when comparing how strong an acid is becaus...