Marble chips are mostly made up of calcium carbonate which is a alkaline compound.
Marble chips and hydrochloric acid experiment equation.
How can the rate of the reaction between calcium carbonate and dilute hydrochloric acid be measured.
2hcl aq caco 3 s cacl 2 aq co 2 g h 2 o l.
If dilute hydrochloric acid is added to excess marble chips carbon dioxide is given off and the mass of reactants decreases.
A graph of decrease in mass against time is shown in fig.
The rate of this reaction can be changed by changing the size of the marble chips.
Hcl calcium carbonate calcium chloride carbon dioxide water.
Hydrochloric acid to react with the marble chips independent variable marble chips to react with the acid dependent variable stopwatch to accurately time the experiment spatula to handle the marble chips measuring cylinder to precisely measure out different concentrations of hydryochloric acid electric balance to measure the mass g of the marble chips bung.
Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas.