Top answers

Chemistry
A Level

Describe the products of the following Friedl-Crafts substitution and explain the role of the AlCl3 in the reaction: C6H6 + CH3C(O)Cl + AlCl3 = ?

C6H6 + CH3C(O)Cl = C6H5C(O)CH3 + HCl

This is an example of an electrophilic aromatic substitution reaction, with the product being a ketone. The AlCl3 serves as a catalyst, converting the acyl chlo...

TH
Answered by Thomas H. Chemistry tutor
11250 Views

Calculate the amount (in moles) of iron 3 nitrate in a 2.16g sample.

Formula of Iron 3 Nitrate is Fe(NO3)3. Moles = mass/Mr.

Already given mass = 2.16g

Want to work out amount in moles.

Need to calculate Mr of Iron 3 nitrate, put into equation with mas...

KW
6487 Views

What is a redox reaction?

A redox reaction is a reaction where both reduction and oxidation are happening simultaneously.

Reduction is the gain of electrons, where as oxidation is the grian of elctrons. I like to remember t...

RW
Answered by Ruth W. Chemistry tutor
3098 Views

An alcohol, X has an Mr of 74 and percentage composition of 64.9% Carbon, 13.5% Hydrogen and 21.6% Oxygen. It does not turn potassium dichromate (VI) green. Determine the structural formula of X, and state its name.

64.9/12 = 5.40833

21.6/16 = 1.35

5.40833/1.35 = 4 so 4 Carbons

13.5/1.35 = 10 so 10 Hydrogens

1.35/1.35 = 1 so 1 Oxygen

4x12+10+16 = 74 so emperical formula = Molecular ...

MB
Answered by Megan B. Chemistry tutor
8301 Views

Describe the reasons why the rates of strontium and barium with water is different

Barium reacts quicker with water than strontium as it has a lower first ionisation energy than strontium as barium has a larger atomic radius and so their is more shielding for the outer electrons. althou...

ME
Answered by Mohamed E. Chemistry tutor
10546 Views

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