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Three gases (8.00 rm g of methane, rm CH_4, 18.0 rm g of ethane, rm C_2H_6, and an unknown amount of propane, rm C_3H_8) were added to the same 10.0-rm L container. At 23.0 ^circrm C, the total pressure in the container is 4.90 atm. Calculate the partial pressure of each gas in the container.
Express the pressure values numerically in atmospheres, separated by commas. Enter the partial pressure of methane first, then ethane, then propane.
Write the overall cell reaction of each. Identify the anode and cathode of each. Arrange the three metals in order of decreasing ease of oxidation(most easily oxidized metal first
Compute the value of ΔH ° if the combustion products are CO2 (g) and H2O (g). it isgiven that: CO 2 (g) = ΔHf ° - 393.5 kJmol-1; H 2 O (l) = ΔHf ° -285.8 kJmol-1; H 2 O (g) = ΔHf ° -241.8 kJmol -1.
What is the composition in mole fractions of a solution that has a vapor pressure of 39 at 20 ? Express your answer using two significant figures.
A patient has 48 ml. of blood drawn and this volume of blood has a mass of 39.5 g. what is the specific gravity of the blood?
-How can you tell which substance receives the H+ or not? and which one is neutral?
A bicycle tire is filled with air to a pressure of 100. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius.
A hot tub is filled with 480 gallons of water, which has a density of 1.0 {rm g/mL}. What is the volume of water in the tub, in liters?
What is the hybridization of the nitrogen atom in sulfathiazole? Assuming that the sulfur atom is sp2-hybridized, how many -electrons are there in the sulfathiazole ring?
Equal masses of water and ethylene glycol are mixed. What is the concentration of ethylene glycol in units of molality? The molar mass of water and ethylene glycol are 18.02 g/mol and 62.07 g/mol, respectively.
A solution is prepared by dissolving 159 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
During the combustion of 5.0 g of octane, C8H18, 239.5 kcal is released. How many grams and how many moles of octane must be burned to release 450 kcal?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
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