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1.000 g sample of cement was dissolved in HCl as well as diluted to 100.0 mL. The sample was analyzed with the instrument an emission reading 40.7 was obtained. Compute the percent Na2O in the sample.
The following properties were measured for an unknown hydrocarbon in a lab with an ambient temperature of 28 degrees Celsius and a barometric pressure of 28.9 inches of mercury (1 inch Hg=25.4 torr)
Arrange the molecules in order of decreasing boiling point Molecules are methane, dimethyl ether
Intended for a particular isomer of C8H18, the subsequent reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed under standard conditions.
Thus the pressure of the components on the left is P where as the pressure on the components on the right is P+Y. To make this clear I will write the chemical potentials as a function of the pressure (eg u1* (P) for the pure solvent on the left)
An empty aerosol can at 25 degree celcius still contains gas at 1.00 atmosphere pressure. If an empty can is thrown into a 488.2 degree celcius fire, what is is the final pressur in the heated can.
Presume that when determining the volume of a pycnometer a student didn't notice there were air bubbles inside the pycnometer when it was filled with water. Explain what effect would this have on the determination of the pycnometer's volume
What is the pH of a 0.15 M solution of aqueous Acetic Acid. The Ka of acetic acid is equal to 1.7 x 10^-5
The simplest formula of the compound is NO2 Which could be the molecular formula of the compound?
Explain why is it advantageous to have a combined cycle gas turbine electrical generating facility rather than just a steam turbine facility? Explain why is the actual efficiency of a fuel cell less than the theoretical value
If you compare the melting point of a slightly impure mixture with the melting point of a pure compound, the melting point of the slightly impure mixture will be: a) broader and lower than the eutectic mixture
calculate the amount of energy in kilojoules needed to change 135 of water ice at -10 degrees celsius to steam at 125
Suppose that 24 of each of the following substances is initially at 29.0. What is the final temperature of gold upon absorbing 2.30 of heat?
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