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A sample of gas isolated from unrefined petroleum contains 90.0% CH4, 8.9% C2H6, and 1.1% C3H8 at a total pressure of 307.2 kPa. What is the partial pressure of each component of this gas? (The percentages given indicate the percent of the total pressure that is due to each component.)
A coffee-cup calorimeter contains 150.0g of water at 25.1C. A 121g block of copper metal is heated to 100.4C by putting it in a beaker of boiling water.
Define and show the chromatographic behavior comparison of fluorene and fluorenone. Illustrate spectral features comparison.
a 3 l rigid constant volume container holds 0.53 moles of helium at an initial temperature of 72 oc. the container has
Using your knowledge of metric units, English units, and the information on the back inside cover, write down the conversion factors needed to convert
In the experiment for classifying matter by properties wet clothes hung outside in subfreezing weather will freeze. Eventually the clothes dry, even if the temperature remains below freezing.
calculate the energy, in joules and calories, lost when 75.0 g of water cools from 86.4 degrees celsius to 2.1 degrees celsius
When 1.00 g of Boron is burned in O2 (g) to form B2O3 (s), enough heat is generated to raise the temp of 733 g of water from 18.0 deg C to 38.0 deg C. Calculate the hear of formation of B2O3(s) under these condtions.
Barium sulfate is swallowed to enhance xray studies of the gastrointestinal tract. At body temperature, 37 C, the Ksp of BaSO4=1.5E-10 and the Ka of HSO4-= 7.1E-3. In the stomach, the pH is 1.00. Calculate the solubility of barium sulfate in the s..
what is the lewis dot structure for
When heated to 350 °Cat 0.950 atm, ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases:
How many milliliters of 0.424 M KMnO4 are needed to react with 5.06 g of iron(II) sulfate, FeSO4?
How many grams of CaCl2 would be required to produce a 3.5 M (molar) solution with a volume of 2.0 L.
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