A solution with a pH value which is less than 7 is acidic. The acids which react with metals usually have quite a low pH, of either 3 or less. Some metals react with acids and when they do the ...

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 reaction ...

IN a preliminary notice upon this subject (Roy. Soc. Proc., vol. xliii. p. 356, February 1888), I explained the procedure by which I found as the ratio of densities 15'884. The hydrogen was prepared ...

A METHOD for determining excess zinc in zinc oxide has been devised 1. It is based on measurement of the hydrogen produced by the excess metal when the sample is dissolved in hydrochloric acid. It ...