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The "air" that fills the air bags installed in automobiles is generally nitrogen produced by a complicated process involving sodium azide, NaN3, and KNO3. Assuming that one mole of NaN3 produces one mol of N2, what volume, in liters, of nitrogen gas is released from the decomposition of 1.88 g sodium azide? The pressure is 755 torr and the temperature is 24 degrees C.
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 1.00 L of air under the stratospheric ozone conditions of 227 K temperature and 1.89 * 10^-3 atm pressure
how many moles of solute are present in 700ml of 0.230M SrBr2
what is the density of a piece of metal if it's mass is 201 g and its volume is 18.9 cm3
the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 88.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 300.0 mL of solution. What is the molarity of the ethanol in this solution?
Calculate the molar solubility and the solubility of iron (II) hydroxide in pure water then in 0.125M NaOH(aq).
what are the structural formulas for the following compound : 6-bromo-2-methyl-3-heptyne
If the volumes in the buret and the flask are identical and the concentration of the acid in the buret is 0.250 M, what is the concentration of the base in the flask.
If the efficiency of the boiler is 91.2%, the efficiency of the turbine is 46.7%, the efficiency of the generator is 98.4%, and one can assume another 5% miscellaneous plant losses, what is the actual efficiency of the overall generating unit?
0.4 grams sample of primary standard Na2CO3 treated with 45mL of dilute perchloric acid. Solution boiled to remove CO2 and then the excess HClO4 back titrated with 13mL of dilute NaOH
Calculate the number of milligrams of iron in a vitamin tablet when there are 3.9 moles of solute (ferrous fumarate solution)
A sample of nitrogen gas occupies a volume of 3.87 liters at 52.8 oC and 2.11 atm. What will the new temperature (in °C) when the volume increases to 4.55 liters and the pressure remains constant?
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