Time

Solvents (B)

Volumes (A)

X .. k .

N k

X ¯ .. k .

(mins) (C)

25

50

100

40

1

1.0

5.0

8.0

2.0

2.0

9.0

3.0

2

2.0

13.0

12.0

4.0

15.0

145

20

7.25

16.0

3

4.0

3.0

15.0

7.0

5.0

14.0

5.0

50

1

12.0

16.0

2.0

11.0

17.0

14.0

222

21

10.5714

13.0

8.0

13.0

2

15.0

9.0

15.0

8.0

11.0

2.0

10.0

14.0

3

5.0

11.0

4.0

12.0