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1. Consider a 2.00L sample of an ideal gas. If one increases the temperature from 200K to 300K and decreases the pressure from 720mmHg to 360mmHg, what will be the final volume?
2. What is the density of a sample of air (average molar mass is 28.8 g/mol) that has a pressure of 750torr and a temperature of 27 degrees C?
3. A 33.0 g sample of N2O(the 2 is small) is held in a 3.0 L container. What is the pressure if the temperature is 400K?
4. Consider a flask containing a mixture of helium and oxygen. The volume of the flask is 1.25 L, the temperature is 40.0 degrees C, and the total pressure is 705 torr. If the flask is known to contain 0.015 mol of He, how many moles of O2 are present?
5. How many liters of CO2, measured at STP, are produced when 10.0 kg octane undergoes complete combustion with sufficient oxygen? 2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O
The temperature is held at 271 K. Calculate the work done by the gas(in joules). to give the appropriate sign
Which of the following molecular geometries could lead to linear molecule after removal of one atom?
what is the calculated value of partial pressure of o2 in acid mine water of ph 2 in which fe2+=fe3+.
Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 375 of insulin at a concentration of 50.0 . What is the total mass of insulin in the bottle?
A mixture consists of 323 mg of methane, 165 mg of argon, and 223 mg of nitrogen. The partial pressure of nitrogen at 275 k is 19 kPa.
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide. Calculate the mass of zinc required to react with 110 mL of 0.15 M nitric acid.
Both potassium chloride (KCL) and potassium hydroxide (KOH) are very soluble in water. However, as one increases the temperature of the solution, KCL becomes more soluble and KOH becomes less soluble. Explain
Calculate the total concentration of lead for a system containing a fixed concentration (0.01 M) of KI. Note (s) denotes solid and (aq) denotes aqueous
One approach to the synthesis of virstatin is shown above. An SN2 reaction of an anionic imide nucleophile (formed by deprotonation of1) with an alkyl halide electrophile 2 affords virstatin ethyl ester 3 Base-inducedhydrolysis
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 4.4 grams of silver plating.
what is the total pressure in a canister that contains oxygen gas at a partial pressure of 804 mm Hg, nitrogen at a partial pressure of 220 mm Hg, and hydrogen at a partial pressure of 445 mm Hg.
Running a TLC of Unknown Compound X using eluent hexane:ethyl acetate 4:1. The Rf of the unknown is too close to the baseline. What should I do?
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