CBSE Class 11 science: Ideal Gas Equation. Videos | States of Matter

• URGENT! Dear experts, Pls explain the question with proper solution. Thank you.
  
• 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.
• The volume of the gas at 0'C and 700mm pressure is 760 CC.The no.of molecules present in this volume is ?  
• 3rd?
  
• What volume is needed to store 0.050 moles of helium gas at 202.6 kPa and 127ºC?
• 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?
• At what pressure would 0.450 mole of nitrogen gas at 23.0 °C occupy 8.90 L?
• A 30.0 g gas sample occupies 11.2 L at STP. Find the molecular weight of this gas.
• 5.0g of an ideal gas occupies 9.2 L at STP. What volume would it occupy at 120°C and 92 mm Hg?
• 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?

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