reactions of acids

what ion do acids produce in aqueous solution?

H+

what is the name of the reaction where acids react with alkalis?

neutralisation

what is one piece you equipment you could use to measure a solution more accurately?

pipette

when making copper chloride, after filtering the mixture, why do you gently heat the solution?

to evaporate water

when making copper chloride, after filtering the mixture, how do you gently heat the solution?

using a water bath or electric heater

ways to improve method of finding concentration of a solution by titration, to improve the accuracy of the result

put a white tile under the flask, or repeat the investigation and calculate the mean

give one advantage of using a pipette rather than using a measuringcylinder to measure the volume of hydrochloric acid

it measures volume more accurately

explain why an acid can be described as both strong and dilute

an acid can be described as strong because it ionises completely in water, and it can also be described as dilute because there is a small amount of acid per unit volume

suggest how the student could improve step 3 of the method to obtain larger crystals instead of powder

by evaporating some of the solution and leaving it to cool

if a scientist were producing zinc iodide and for the last step they had to evaporate off the ethanol, how could they do it safely?

heat with a water bath or electric heater

what is a weak acid?

an acid which partially ionises in a solution, meaning only a small proportion of acid particles dissociate to release H+ ions