Salts and Empirical Formula

Question 1

What is a salt?

Answer 1

A salt is any compound formed by the neutralisation of an acid by a base.

Question 2

Salts have two different names, where does the first name come from and where does the second come from?

Answer 2

The first name comes from the metal, metal carbonate or metal oxide. The second name comes from the acid.

Question 3

What salts do nitric acid always produce?

Answer 3

(metal) nitrate and they contain the nitrate ion, NO3-

Question 4

What salts do hydrochloric acid always produce?

Answer 4

(metal) chloride and they contain the chloride atom Cl-

Question 5

What salts do sulfuric acid always produce?

Answer 5

(metal) sulfate and they contain the sulfate ion, SO4 2-

Question 6

How is an insoluble salt formed?

Answer 6

When two soluble salts react together in a precipitation reaction.

Question 7

How is a soluble salt formed?

Answer 7

Reacting acids with either soluble or insoluble bases.

Question 8

How do you work out the empirical formula?

Answer 8

1 find masses
2 look up given Ar values
3 divide masses by Ar
4 find the ratio