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A welding cylinder contains argon and carbon dioxide. the Total pressure of the cylinder is 2500.0 torr. The argon is at a pressure of 0.890 atm. what is the pressure of the carbon dioxide in the cylinder in torr?
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How many formula units of Na2SO4are present in a 450 gram sample of the salt? Use 6.022×1023mol-1 or Avogadro's number. Report your answer in scientific notation. Your answer should have two significant figures.
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A sample of gas in a cylinder has an initial volume of 56.0 L , and you have determined that it contains1.60 moles of gas. The next day you notice that some of the gas hasleaked out. The pressure and temperature remain t ...
The mass of a sample of CaCO3 is 751 grams How many total atoms are present in this sample?
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