Step 6: Measure Pressure and Volume with the Book and 1 kg of Weight

Starting from the top

1.498

1.18

43.5

51.3

For step 7

2.498

1.27

40.5

51.4

For 8

3.498

1.37

37.5

51.4

For 9

4.498

1.47

35.0

51.5

Lmk if anyone needs earlier steps, but I'm going to assume no since you're already on 6

Explanation:

For Step 5:

0.498

1.08

47.5

51.3

It goes in this order. Hope this helps

10 years is the answer

fe 55.85 g/mol and h2o 18.02 g/mol.