Question

For:   X → Z  

X is green in aqueous solution, Z is colorless in aqueous solution

Given the following:

Test #              grams X (molar mass = 40.00)           the volume of g X is negligible to total volume

1                                0.100

2                                0.200

solvent A

Test #              ml water

1                    20.00

2                    20.00

Solvent A and grams of X were mixed and the time for the green color to disappear was recorded

Calculate the [X] for Test 2 (remember the brackets mean concentration in this case Molarity)

	A.	1.25 x 10-1
	B.	5.00 x 10-3
	C.	2.50 x 10-1
	D.	none of these

Answer 1

The correct answer is option - C ( 2.5*10^-1 )

answered by: anonymous