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.2

.25

.33

.5

.67

.75

75g 25g

75g

1 mol

12.01g

75*1/12.01 6.24

25g

1 mol

1.01g

25/1.01

24.75

24.75/6.24 = 4

CH4

53.7g

1 mol

55.85g

53.7*1/55.85 .96/.96 1 2

32.07g

46.3g

1 mol

46.3/32.07 1.44/.96 1.5 3

Fe2S3

52.7g

39.10g

1 mol

52.7/39.10 1.34

47.3g

1 mol

35.45

47.3/35.45 1.33

KCl

36.48g

1 mol

22.9

1.59

25.41g

1 mol

32.07

.79

38.11g

16.00

1 mol

38.11/16.00 2.3

3

2

1

Na2SO3

NH2 ( 14.01 + 1.01 + 1.01 ) = 16.03 16.03 * 2 = 32.06
32.06 N2H4

12.01 + 1.01 = 13.02 78/13=6 C6H6

5.93g

94.07g

1 mol

1 mol

1.01g

16.0

5.93/1.01 = 5.87

94.07 /16.0=5.87

OH O2H2

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