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A student has a flask filled with 0.385 grams of a gas at 26.2 Celsius and 1.01 atm. The flask has a volume of 138.2 mL
a. Use the ideal gas equation to determine the moles of gas present in the flask.
b. what is the molar mass of the gas?
Solution A is prepared by dissolving 80.4 g of Na3PO4 in enough water to make 1.50 L of solution. Solution B is 2.5 L of 0.620 M Na2SO4. Do not include units in any of your answers. What is the molar concentration of Na3PO4 in Solution A
Create an 18- to 20-slide presentation on one of the topics below. You many use various sources, including your textbook or other scholarly material. Since you will not be presenting this PowerPoint to your instructor or class mates in person, you..
If an interplanetary vehicle goes to Venus and collects 2.50 L of this gas and brings it back to earth, what volume would the gas occupy at STP?
If a solution is made by mixing 20.0mL .4M NaCH3COO with 30mL .4 CH3COOH, calculate the pH for acetic acid, Ka = 1.76x10^-5.
Determine the adiabatic flame temperature of propane (C3H6) burned in a steady flow process with (a) 0.00% excess air, (b) 100.% excess air, and (c) 300.% excess air.
The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is absorbed/released when 9.00 g of steam condenses to liquid water at 100°C.
Explain the approximate volume of a 100-watt bulb is 130cm3, as well as the bulb contains 3x10-3 mol of argon. Explain how many moles of argon would be contained in a 150-watt bulb under the similar pressure and temperature conditions if the volum..
Calculate the partial pressure of SO2. Calculate the partial pressure of Cl2. Calculate the equilibrium constant at this temperature.
what is the required time at 675 degrees celsious to have only 25% Austenite left during the transformation from Austenite to Pearlite?
Determine the heats of formation or the steric energies of the exo-and endo-anhydride adducts using a molecular mechanics program. What do these energies tell you about the mechanism of the reaction
Gas cylinder A has a volume of 48.2 L and contains N2(g) at 8.35 atm at 25 ºC. Gas cylinder B, of unknown volume, contains He(g) at 9.50 atm at 25 ºC
Compute the pH of a buffer solution prepared by dissolving a 0.20 mole of cyanic acid (HCNO) as well as 0.80 mole of sodium cyanate(NaCNO) in enough water to make 1.0 liter of solution Ka(HCNO)=2.0*10-4
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