Calcium oxide or calcium hydroxide can be used in this practical. Use a measuring cylinder to add dilute hydrochloric acid to a beaker. Dip a clean glass rod into the contents of the beaker.

We can use a gas syringe to measure the reaction of metals with dilute acid. When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas. We can measure the rate of the ...

It seems to us that most of the naysayers are somewhat overwrought in their criticism, especially since [Sebastian]’s method used very dilute solutions: a 30% hydrochloric acid solution added to ...