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If a certain gas occupies a volume of 20 L when the applied pressure is 10 atm, find the pressure when the gas occupies a volume of 5.0 L.
what common laboratory test of viscoelasticity does this test most closely correspond? Estimate the average life of the same tubing in the same rupture test at 30 deg C and 37 deg C
already have a solution that contains 10 mmol of acetic acid. how many millimoles of acetate will you need to add to this solution? the pKa of acetic acid is 4.74
A 2.9 m solution of methanol (CH3OH) in water has a density of 0.984 g/ml. What are the a) mass percent, b) molarity, and c) mole fraction of methanol in this solution?
What is the final temperature of spoon + coffee? (Assume that the heat capacity of the spoon is the same as that of pure iron and that the heat capacity of the coffee is the same as that of pure water.)
You have 250.0 ml . graduated cylinder containing some water(61.0 ml). Theb you drop three marbles with a total mass of 95.2 g into the water (final volume is 95.5 ml). What is the average density of a marble
a tank contains both nitrogen and hydrogen gas. if the partial pressures are 190 mm hg and 303 mm hg respectively what
The standard molar enthalpy change for this reaction is -1.3MJ. What is the enthalpy change when 6 moles of octane are combusted?
dimethylglyoxime dmg is an organic compound used to test for aqueous nickelii ions. a solution prepared by dissolving
The importance of the hydroxyl radical in reacting with and eliminating many atmospheric pollutants. However, the hydroxyl radical does not clean up everything.
What is the maximum mass of aluminum chloride that can be formed when reacting 14.0g of aluminum
Write the balanced chemical equation that corresponds to this reaction. B) If 15g cyclohexane is burned in a calorimeter with a heat capacity of 230kJ/K, what temperature change do you expect
If 34.5 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.690 g precipitate, what is the molarity of lead(II) ion in the original solution
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