U evaporate it
If the solution is not basic then the pH will fall below 7
it will clean 6 pennies to a fair but noticeable shine
If there are any drops still hanging on the burette, they should be washed into the flask with distilled water.
The pH drops. The stronger the acid the lower the pH.
solution
pH is NOT a compound, it is a acidic/base property of solutions. So you cannot add 'drops of pH' to anything what's so ever.
the colour changes to pink
The reaction is:SbCl3 + H2O = SbOCl + 2 HCl
~60 drops solution: 20 drops/mL * 3 mL = 60 drops
NaCI + AgNO3 >>>>> NaNO3 + AgCI (white ppt.)
It remains constant since no liquid or solid escapes. However, it can also be argued that the total mass drops, since the surface of the solute evaporates, reducing the amount of substance in the solution.
why did the mixturestop turning the drops of iodine solution blue after 240 s