Acids bases and salts

Define an acid

A proton donor

What’s a strong or weak acid

Strong acids fully dissociates

Weak acids partially dissociate

Define a base

A proton acceptor

Define an alkali

A base that dissolves in water to form hydroxide ions

What’s a salt

A compound formed from the reaction of an acid and a base, typically consisting of positive ions from the base and negative ions from the acid.

Acids react with alkalis to form what

a salt and water.

Acid + metal oxide forms what

a salt and water.

Acid + carbonate forms what

a salt, water, and carbon dioxide (fizzing)

Standard solution

a solution of known concentration used for titrations.

It is prepared by dissolving a precise amount of solute in a specific volume of solvent usually a known mass in 100cm3, transfer to a 250cm3 volumetric flask and rinse and add washings to the flask then top up with distilled water.

what does concordant mean

Concordant refers to results that are in agreement or very close to each other, typically in the context of titrations when repeated measurements yield similar values.

How do you calculate percentage error

Experimental value-Accepted value/ Accepted value

How do you calculate percentage uncirtanty

(No of measurments x Uncirtanty/ Measured value) x 100