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In the labratory you are given 1.5g of butyl butanoate ester C8H16O2. (i) Draw the functional group of this compound. (ii) What is the emperical formula of the compound. (iii) What is the molar mass of the compound? (iv) How many moles were you given

(i) Ester functional group RCOOR(ii) The emperical formula is the simplest whole number ratio of atoms in a compound therefore C4H8O(iii) The molar mass is C (12 x 8) = 96 H (1 x 18) = 18 O (2 x 16) = 32Mola...
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Answered by Helen H. • Chemistry tutor
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Simplify the following fraction - Numerator = 2(8-k) + 4(k-1) Denominator = k^2 - 36

The first task is to multiply out the brackets in the numerator. By doing this, we find that the numerator is equivalent to "12 + 2k". We should now simplify the denominator. We can convert it into...
ML
Answered by Matteo L. • Maths tutor
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Assess the impact of minimum wage legislation on a developing economy.

An increase of a National Minimum Wage (NMW) increases living standards of the population by increasing their spending power. This, will cause demand for consumer products to increase, causing GDP to increas...
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Answered by Rory Q. • Economics tutor
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How do I structure an essay?

Very generally; an essay is made up of an introduction, main body and conclusion.An introduction 'funnels into' your main body and aims to draw the reader in and establish what you're going to argue or inves...
BC
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A roller coaster car starts stationary at the top of a downwards slope. At the bottom of the slope, it has a speed of 30m/s. Use the conservation of energy to find the vertical height of the slope. (Use g=10 m/s^2)

From the conservation of energy, we know that the change in gravitational potential energy (GPE) is equal to the change in kinetic energy (KE). GPE=mgh and KE=(1/2)mv^2. At the top of the slope, the car star...
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Answered by Tamsin M. • Physics tutor
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