What is the molar volume of a gas at STP? O 11.2 L/mol O 0.0446 L/mol O 22.4 L/mol 22.4 mL/mol

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.75oo torr = x atm, =y psi what are x and y

1-at atmospheric pressure a sample of Ne gas gas a volume of 155mL at 32C degrees. What volume in milliliters will the Ne gas occupy if the temperature is decreased to 12C degrees while the pressure remains constant? 2-How many mL of 3.5 M HCL is needed to prepare 125 mL of 0.5 M HCL by dilution? 3-A gas has a volume of 1.71 liters at a temperature of 87C and pressure of 775 torr. What is the pressure of the gas when the volume is increased to 2.3L at a temperature of 367C? 4-calculate the concentration in % (m/m) of a solution containing 30.1 g of NaBr dissolved in 400.0g of H2O. 5-what is the boiling point of an aqueous solution that contains 0.795 moles of NaCl per one kg of water?

What is the molar mass of a gas if 24.50 g at a temperature of 46.80 °C has a volume of 25.00 L and a pressure of 0.8570 atm? 120.00 g/mol 4.39 g/mol 30.04 g/mol 0.03329 g/mol none

Which one of these samples contains the smallest number of molecules? Select one: Oa. 1.0 L of N2 at STP b. 1.0 L of He at STP Oc. 1.0 L of H2 at STP (0°C and 1 atm) O d. 1.0 L of N2 at 0°C and 800 torr O e. 1.0 L of H2 at 20°C and 760 torr

How many moles of gas are found in a 20 L container at STP? R = 8.31 (L·kPa/mol·K) moles (just type your numerical answer with the correct number of sig digs to be counted correct) Enter Anc erHere