chemistry
posted by michelle .
I am looking at the material in the text over and over and cannot understand this!........help,how do I figure this out?
Find the volume occupied by 0.500 mole He at STP .

Two procedures:
1. You know that 1 mole of any gas (an ideal gas) occupies 22.4 L at STP; therefore, 22.4 L x 0.5/1 = ?? OR
2. Use PV = nRT
P is 1 atm, V is the unknown, n = 0.5, you know R and T is 273.
The answer should be the same for both methods.
Respond to this Question
Similar Questions

chem
hi can anyone help how do i determine the molecular formular of the oxide of arsenic in its in its gaseous state the answer i got was 17.8 gl 1 for the density, which law do i use is it boyles law or charles law thanks A mol of a … 
Chemistry (Check)
Part B TrueFalse Classify each of the statements as always true, sometimes true, or never true. 1.____ST______ one mole of any gas occupies a volume of 22.4 L. 2_____NT______ for a substance of known molar mass, the number of moles … 
Chemistry
If 500.0 mL of hydrogen are collected over water at 20.0 C and 99.3 kPa what will the volume of the dry gas be at STP? 
chem
how would you figure this out? if 500 mL of hydrogen are colected over water at 20 degrees c and 745 torr, what will the volume of the dry gas be at STP? 
Technical Writing
Using presentation software, when do you use certain layouts? 
Chemistry
Use molar volume to solve the following problems at STP. Find the volume mL occupied by 0.400 mole He. Find the number of grams of neon contained in 10.2 L Ne gas 
Chemistry
It turns out that the Van Dar Waals constant b is equal to four times the total volume actually occupied by the molecules of a mole of gas. Using this figure, calculate the fraction of the volume in a container actually occupied by … 
chemistry
If 500.0 mL of hydrogen are collected over water at 20.0 C and 99.3 kPa what will the volume of the dry gas be at STP? 
Chemistry
How many moles of Sulfur are in 1 mole of Al2(SO4)3 and If the densitry of a noble gas is 1.783 g/L at STP, that gas is.... My guess: Argon? 
Math
Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma …