Question

If 37.4 grams of water decomposes at 297 Kelvin and 1.30 atmospheres, how many liters of oxygen gas can be produced? Show all of the work used to solve this problem.
2 H2O (l) ---> 2 H2 (g) + O2 (g)

Answer 1

its exactly same way as we worked earlier

Answer 2

can you try yourself first?

Answer 3

Volume = 37.4
Pressure = 1.30
Temp = 297

So do I only have to convert the volume and the pressure?

Answer 4

37.4 grams its mass not volume

Answer 5

Okay so we have to find the volume?

Answer 6

convert pressure which is in atm to Pa as we did in the other question

Answer 7

yes we need to find volume

Answer 8

So the new pressure is 131722.5?

Answer 9

yupp

Answer 10

now look we have mass of water

Answer 11

and u can find Mr from the table

Answer 12

what can u find?

Answer 13

18.01528 g/mol

Answer 14

yeah basically 18

Answer 15

so u have mass and Mr