Question

If the golden number of potato is 25 .How many grams

Answer 1

At the end of Probability class, our professor gave us the following puzzle: There are 100 bags each with 100 coins, but only one of these bags has gold ...

Answer 2

Next similar questionQ)

The coagulation of 100 ml of a colloidal solution of gold is completely prevented by the addition of 0.25 g of starch to it before adding 1 ml of 10% Nacl solution . Calculate the gold number of starch .

(a)20(b)0.25(c)2.5(d)25

Homework help Revision notes Donate

A)

Answer : 25

Explanation :

Amount of starch added to 100 mL of gold sol required to prevent coagulation of 1 mL of 10% Nacl solution = 0.25 g = 250 mg

Starch required to be added to 10 mL to gold sol to completely . Prevent coagulation by 1 mL of 10% NaCl solution .

=250100×10=25mg

Therefore , Gold number of starch = 25