Question 1:
Answer 1: The mixture of ammonium vanadate, ammonium hydroxide, and hydrochloric acid was yellowish and had less color in comparison with the control. As Manganese sulfate was mixed with ammonium hydroxide turned into orange, Though as it was mixed with hydrochloric acid its color did not changed and stayed clear. The control of iron nitrate was orange, but as it was mixed with ammonium hydroxide the color changed into red and after mixing with hydrochloric acid the color was yellow. The control of cobalt nitrate was pink. When it was mixed with hydrochloric acid the ...
