2006-09-25 18:25:50 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The blue color is due to the presence of Copper (II) Sulphate (CuSO4) in the solution. Aqueous Cu2+ ions gives a blue solution.
2006-09-26 01:19:26 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Benedict Reagent Preparation
2016-12-10 19:17:49 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Barfoed's reagent is prepared by dissolving 70 g copper acetate monohydrate Cu(CH3COO)2*H20 and 9 mL glacial acetic acid in water to a final volume of one liter.
Benedict's reagent is a mixture of sodium carbonate, sodium citrate and CuSO4.
In both cases. the color is due to the hydrated Cu2+ ion.
2006-09-26 02:28:54 · answer #3 · answered by andreicnx 3 · 0⤊ 0⤋
Because of the presence of copper sulfate, a bright blue compound.
2006-09-25 18:34:48 · answer #4 · answered by PaulCyp 7 · 0⤊ 0⤋