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Explain what would happen to the pH of a solution of aqueous hydrochloric acid if you add water.

pH is a measure of the concentration of H+ ions contained within a given volume of a solution. Adding water, without increasing the amount of hydrochloric acid particles within the solution, increases the...

Answered by Mohammed R. • Chemistry tutor

4806 Views

A chemist synthesised two solutions A and B, they know one solution is an aldehyde and the other a ketone. Suggest how the chemist could identify which is which and describe any observations they would make

Tollens reagent could be used to identify the the solutions A and B, as the aldehyde solution will oxidise to a carboxylic acid and a ‘silver mirror’ will be observed. Ketones cannot be oxidised further a...

Answered by Hugo J. • Chemistry tutor

1935 Views

A compound is found to contain 23.3% magnesium, 30.7% sulfur and 46.0% oxygen. What is the empirical formula of this compound?

Mass 23.3 30.7 46.0
Mr 24 32 16
Mass/Mr ...

Answered by Jack G. • Chemistry tutor

5216 Views

Why does Iodine have a higher boiling point than chlorine?

Iodine has a larger number of protons and electrons than chlorine, which causes the inter-molecular forces of attraction between iodine molecules to be stronger than those present between chlorine molecul...

Answered by Jack G. • Chemistry tutor

6325 Views

Potassium and Sulfur form an ionic compound, how does this happen?

Potassium has one electron in its outer shell, and Sulfur has two. When forming an ionic compound with one atom of sulfur, two potassium atoms are used. Each potassium atom donates its outermost electron ...

Answered by Joshua C. • Chemistry tutor

33971 Views