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A piece of solid carbon dioxide, with a mass of 7.8g is placed in a 4.0L otherwise empty container at 27 deg C. What is the pressure in the container after all the carbon dioxide vaporizes? If 7.8 g solid carbon dioxide were placed in the same container but it already contained air at 740 torr, what would be the partial pressure of carbon dioxide and the total pressure in the container aafter the carbon dioxide vaporizes?
In analyzing a general unknown containing ions from several of the cation groups, a student treated the decante from Group II with Na3Co(NO2)6 and observed that a precipitate formed.
water skier is pulled by a net force of 180 N and has an acceleration of 2.4 m/s2. What is the mass of the skier?
Which salt is most soluble in water? chromium (III) nitrate, silver iodide, barium phosphate, or calcium carbonate.
Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230 M HCl. The Kb of methylamine is 5.0× 10-4.
the pH of a saturated solution of a metal hydroxide MOH is 9.30. calculate the Ksp for the compound
"Based upon what you know about the accepted mechanism for hydration, can you see any reason why this hydration should be 100% stereoselective?"
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2(s) dissolves in water at 25°C?
A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the energy of the wave.
What is the mass of precipitate (in Grams) that forms when 235.5 mL of 0.129 M Na2SO4 solution is reacted with excess Ba(NO3)2 solution?
a compound contains 87.7% carbon and 14.3% hydrogen.its relative molecular mass is 70.what is the empirical formula and the molecular formula.and is it an alkane or alkene
Calculate the molarity and mole fraction of acetone in a 1.82 molality solution of acetone in ethanol. Density of acetone is .788 g/cm^3. Density of ethanol is .789 g/cm^3. Assume that the volume of acetone and ethanol add.
Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
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