|
70.State the number of significant figures used to
express the mass of hydrogen carbonate ions in the table above.
71. Based on Table F, write the formula of the ions
in the bottled water table that would form the least soluble
compound when combined with the sulfate ion.
72. Show a numerical setup for calculating the
parts per million of the Na+ ions in the 500.-gram sample
of the bottled water.
| Answer-->
(0.0033g/500.g) X 1,000,000 |
73. Compare the radius of a Mg2+ ion to the radius of the
Mg atom.
|
Answer--> Mg2+ is smaller than Mg or Mg is larger
than
Mg2+
No explanation needed |
F halides | 