Question

Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 55.0 gallons and which contains O2 gas at a pressure of 16,500 kPa at 23 degrees C.

What is the mass of O2 in the tank in g?

What volume would the gas occupy at STP in liters?

At what temperature would the pressure in tank equal 1.55 atm?

What would be the pressure of the gas, in kPA, if it were transferred to a container at 24 degrees C, whose volume is 55.0 L ?

Answer 1

@oOKawaiiOo or @Sheng

Answer 2

i know how to do the first part abut do not knwo how to continue


i got help from the following website

http://nz.answers.yahoo.com/question/index?qid=20081120174111AA9cYkf

Answer 3

that website has DIFFERENT numbers but it si the same problem

Answer 4

hai

Answer 5

hi

Answer 6

yea lol no idea srry :_(

Answer 7

can you help me?

Answer 8

it is ok thanku and maybe i can help u

let me look over ur question

Answer 9

assuming an equal amount of surface area , which will have a faster temperature rise on a sunny day? a lake or land

Answer 10

What's the number of moles you got?

Answer 11

i got 11802.04g for O2

Answer 12

i used n= mass/ molar mass

and subtitute it in the eqaution

PV= nRT ---> PV= mRT/ molar mass (M)

Answer 13

n is the number of moles

Answer 14

\[PV=nRT \\ \\ n=\frac{PV}{RT} \\ \\ n=\frac{(16500)(208.2)}{(8.31)(296.2)}=1396 moles\]
So,
\[1396moles \times \frac{2(16)g}{1mole}=44672g~O_2\]

Answer 15

can u plz convert kpa to atm so i would make sure from my answer

Answer 16

convert 16500kpa to atm and also use R= 0.08206 L atm / k mol

Answer 17

1kPa=0.009869atm

Answer 18

then what

Answer 19

it is ok u do not have to use the same number just plz show me how u do part b

i just need the method not the work

Answer 20

At Standard Temperature Pressure,
T=273.3 K
P=1 atm (101.3 kPa)
Use these values instead of the first 2 values in PV=nRT

Answer 21

ok and for the moles what do i use ?

Answer 22

The one you calculated

Answer 23

ok then and what about c

Answer 24

do i use the volume found in part b with the given pressure of 150

Answer 25

It says the pressure in tank equal 1.55 atm, so at that pressure the temperature is:

Since the volume and moles is given, PV=nRT
You can work out the temps here.

Answer 26

i use the volume and moles that i found in the earlier parts right?

Answer 27

yes

Answer 28

and just to make sure for part d

i use the given temp. and volume, with numbers of moles that i found earlieer right?

Answer 29

@.Sam.

Answer 30

for d, use the given 24 degrees C, 55.0 L, and the values you calculated .

Answer 31

by 'the values you calculated' u mean for number of moles right ?

Answer 32

yes

Answer 33

@.Sam.

Answer 34

ok thanku so much for ur assistance :)

Answer 35

Welcome