Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

A 30.0 g gas sample occupies 11.2 L at STP. Find the molecular weight of this gas.
Asked by Topperlearning User | 20 Apr, 2015, 11:32: AM
Expert Answer

One mole of a gas occupies a volume of 22.4 L at STP. This is a standard fact.

11.2 L at STP is one-half molar volume; therefore there is 0.5 mol of gas present.

Thus, the molecular weight of the gas is 80.0 g mol-1.

 

Answered by | 20 Apr, 2015, 01:32: PM

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 11-science - Chemistry
URGENT! Dear experts, Pls explain the question with proper solution. Thank you.
Asked by pratikshyadashrkl | 12 Apr, 2020, 06:47: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
at 25 degree celsius and 0.993 bar, 135 ml of a gas is collected over water. if the gas weighs 0.16g and the aqueous tension at 25 degree celsius , is 0.0317. calculate the molar mass of the gas.
Asked by Ankit | 16 Mar, 2019, 01:01: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
The volume of the gas at 0'C and 700mm pressure is 760 CC.The no.of molecules present in this volume is ?  
Asked by minipkda | 18 Aug, 2018, 08:46: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
3rd?
Asked by smanishkumar2002 | 04 Aug, 2018, 05:36: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
What volume is needed to store 0.050 moles of helium gas at 202.6 kPa and 127ºC?
Asked by Topperlearning User | 20 Apr, 2015, 11:17: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
A sample of ideal gas occupies a volume of 238 mL at STP. To what temperature must the sample be heated if it is to occupy a volume of 185 mL at 2.25 atm?
Asked by Topperlearning User | 20 Apr, 2015, 11:21: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
At what pressure would 0.450 mole of nitrogen gas at 23.0 °C occupy 8.90 L?
Asked by Topperlearning User | 20 Apr, 2015, 11:33: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
A 30.0 g gas sample occupies 11.2 L at STP. Find the molecular weight of this gas.
Asked by Topperlearning User | 20 Apr, 2015, 11:32: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
5.0g of an ideal gas occupies 9.2 L at STP. What volume would it occupy at 120°C and 92 mm Hg?
Asked by Topperlearning User | 20 Apr, 2015, 01:04: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
If 9.006 grams of a gas are enclosed in a 50.00 liter vessel at 273.15 K and 2.000 atmospheres of pressure, what is the molar mass of the gas? What gas is this?
Asked by Topperlearning User | 20 Apr, 2015, 11:38: AM
ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt