Dx
Jun28-03, 11:42 AM
1) A sample of Co2 contains 3.01x10^23 molecules at STP. what volume does this sample occupy?
I have the multiple choice answers but need help explaining why you chose that answer.
11.2L
44.8L
32.7L
2) a 25L container hold H gas at gauge pressure 1.25atm and temo 0 degrees celcius. whats mass of H in this container
2.8g
4.2g
5.6g
3) An ideal gas has density of 1.75kg/m^3 at gauge pressure 160kPa. what must be the gauge pressure isf density of 1 kg/m^3 is desired at the same temp?
356kPA
280kPA
48KPa
4) an ideal gas in container of volume 100cm^3 at 20 degrees C has pressure of 100N/m^2. determine the number of gas molecules in the container
6x10^23
2.5x10^18
5.2x10^18
I am not going to put my work here since ive already missed them. I cant go on not understanding why or what these answers were. I have gone back to re-read the chapter on this and still unclear with the ideal gas law, i know its said to be simple but its not clicking here. I dont need a long explaination just the answer you got and briefly how you derived it. If you feel you dont have to answer this cause it vilates so rules its like i said "Its not homework but missed test questions that for my own personnel conquest I must try to solve but need your help, plz" Please understand I hold each of you in the highest respect and thank you for all youve done. Its really been a great help for me to better understand this subject.
I applaude you all!
Dx [;)]
I have the multiple choice answers but need help explaining why you chose that answer.
11.2L
44.8L
32.7L
2) a 25L container hold H gas at gauge pressure 1.25atm and temo 0 degrees celcius. whats mass of H in this container
2.8g
4.2g
5.6g
3) An ideal gas has density of 1.75kg/m^3 at gauge pressure 160kPa. what must be the gauge pressure isf density of 1 kg/m^3 is desired at the same temp?
356kPA
280kPA
48KPa
4) an ideal gas in container of volume 100cm^3 at 20 degrees C has pressure of 100N/m^2. determine the number of gas molecules in the container
6x10^23
2.5x10^18
5.2x10^18
I am not going to put my work here since ive already missed them. I cant go on not understanding why or what these answers were. I have gone back to re-read the chapter on this and still unclear with the ideal gas law, i know its said to be simple but its not clicking here. I dont need a long explaination just the answer you got and briefly how you derived it. If you feel you dont have to answer this cause it vilates so rules its like i said "Its not homework but missed test questions that for my own personnel conquest I must try to solve but need your help, plz" Please understand I hold each of you in the highest respect and thank you for all youve done. Its really been a great help for me to better understand this subject.
I applaude you all!
Dx [;)]