24. The equation shows the reaction between a halogen and aqueous bromide ions. X2 + 2Br (aq) + 2X (aq) + Br2
...1
2
3
Which words correctly complete gaps 1, 2 and 3?
1
2
3
A
chlorine
brown
colourless
B
chlorine
colourless
brown
с
iodine
brown
colourless
D
iodine
colourless
brown

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

In the particles are arranged in a regular, repeating pattern. a)a crystalline liquid b)a crystalline solid c)all gases d)all solids

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use