In another experiment, sodium hydroxide solution is added slowly
to the hydrochloric acid to which Universal Indicator solution has been added.
Discuss how the colour changes relate to the substances present
in the solution as the sodium hydroxide solution is added.
Use the substances from the key list.
Key list of substances:
At the beginning:
When the acid is neutralised:
When further sodium hydroxide is added:
- 下雪Lv 71 decade agoFavorite Answer
the total reaction is
HCl + NaOH --> NaCl + H2O
the solution color change depended on your indicator.
At begining, the color is red or orange red. After sodium hydroxide solution added, the will change from red to ~ (you can see the picture or table, color is depend on pH value)
Universal Indicator solution