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What factors affect acidity in solution?

Approach this question in a logical manner breaking it down into constituent parts and then explaining these in turn.

Give a defination for acidity i.e. pH: pH=-log10[H+] or pKa=-long10Ka...

Answered by Theo R. • Chemistry tutor

1898 Views

2-chloropropanoic acid has a Ka of 1.48E-3. Write an expression for Ka and hence or otherwise, calculate the pH of a 0.35M solution of 2-chloropropanoic acid

In these multiple part questions, it is often the case that the previous part of the question will provide necessary information for answering the following parts, as hinted by the use of 'hence'. It's ve...

Answered by Colin M. • Chemistry tutor

7497 Views

Butane, C4H10 is burned completely in excess oxygen, write the balanced chemical formula for the reaction, name the products and type of reaction.

We need to think about the number of atoms of each element in the reactants and ensure these are the same in the products.

This is the basic UNBALANCED equation.

C₄H₁₀ ...

Answered by Callum J. • Chemistry tutor

27488 Views

What is the electron arrangement for a Co atom?

Look up Co on the periodic table. Proton number is 27. Therefore, the number of electrons is 27.

1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁷, 4s

Answered by Emma P. • Chemistry tutor

2009 Views

What are buffers and how do they work?

Buffers are solutions of acid and base which work to minimise changes in pH following the addition of small amounts of acid or base. Ideal buffers are made of a weak acid (i.e. one which does not fully di...

Answered by Samuel J. • Chemistry tutor

7089 Views