A tank of volume 16.0 L contains a mass 0.145 kg of helium at temperature 17.0 degrees C. The molar mass of helium is 4.00 g/mol.
How many moles of helium are in the tank?
What is the pressure in the tank (in pascals)?
What is the pressure in the tank (in atmospheres)?
2006-06-28 21:36:57 · 5 answers · asked by Sagely 4 in Science & Mathematics ➔ Physics
moles = 36.25
pressure= 5.4625*10^6 pa = 53.9 atmospheres
2006-06-29 01:51:24 · answer #1 · answered by yoovraj s 2 · 1⤊ 1⤋
1) Is it not 0.145/0.004. Because moles=(mass/molecular mass)
2) substitute in PV= nRT the values of V in m^3, n ( the moles), R = 8.314, T in K( = 273+c).
3) I dont remember the conversion exactly now. Its also easy.
2006-06-28 21:43:29 · answer #2 · answered by ved_vishwa 2 · 0⤊ 0⤋
Stop asking these questions. You don't get problems just so you can ask someone else. LEARN THEM.
2006-06-28 21:39:22 · answer #3 · answered by Wai 5 · 0⤊ 0⤋
Do your OWN homework.
2006-06-28 21:39:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yes have it
2006-06-28 21:47:12 · answer #5 · answered by uthmanadeola 2 · 0⤊ 0⤋