A chemist dissolves 660.mg of pure hydroiodic acid in enough water to make up 300.mL of solution. Calculate the pH of the solution.

0.23

Explanation:

Mass= 600mg, Volume =300ml

To get the number of mole of HCl

n = mass/molar mass = 600/36.5 = 18.02 mole

Now to he the concentration of HCl

C= n / v

= 18.02/300

= 0.603mol/ml

But pH = - log [hydrogen ion]

Therefore pH = - log 0.603

=0.23

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.