Explanation:
On dissolution of chromium(II) sulfate is water 2 ions of chromium(III) ion and and 3 sulfate ions are formed.
The balanced chemical equations of the dissolution of chromium (II) sulfate:
On dissolution of gold(III)nitrate is water 1 ions of gold(III) ions and and 3 ions of nitrate ions are formed.
The balanced chemical equations of the dissolution of gold(III) nitrate:
The indicator remains colourless in a solution with a pH between 1-7. It turns a solution with a pH higher than 8 pink. So your given solution would not change in colour.
Answer:
1) 1.3
2) 6.8
3) 7.0
4) 8.2
5) 13.6
Explanation:
The pH scale is a scale from 0 to 14 that shows how acidic or alkaline a substance is. A pH of under 7 is considered an acid and the closer the number is to 0 the stronger of an acid the substance is, however if a substance has a pH of 7 then it is considered to be neutral. When a substances pH is above 7 it is considered alkaline and the closer it is to 14 show how alkaline the substance is.
A universal indicator shows you the pH of a substance using a spectrum of colours, that represent the numbers from the pH scale.