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Calculate the internal energy change. A piston is compressed from a volume of 8.3 L to 2.2 L against aconstant pressure of 1.9 atm. In the process, there is a heat gainby the system of 370. J.
A compound has an empirical formula of C2H2O and a molecular mass of 168.0. The molecular formula is C6H6O3.
Number of unpaired electrons in the nitrogen atom
A solution contains some or all of the ions Cu^{2+}, Al^{3+}, K^+, Ca^{2+}, Ba^{2+}, Pb^{2+}, and {NH_4}^+. The following tests were performed, in order, on the solution
What is the absolute error in mL associated with a 25 mL burette, and what is the relative error % when a 3.25 mL volume is measured with the 25 mL burette
If 200. mL of aqueous 0.862 M HCl is mixed with 200. mL of aqueous 0.431 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity.
Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the potassium chloride
what mass of co2nbspdo you introduce into the earths atmosphere by completely burning one tank of gasoline in your
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.
Find the percent by mass of oxygen in heptanoic acid, C6H13CO2H.
at 27 degrees celsius the vapor pressure of pure water is 23.76 mmhg and that of an aqueous solution of urea is 22.99
the successive ionization energies of a certain element arei1 589.5 kjmol i2 1145 kjmol i3 4900 kjmol i4 6500 kjmol
If the valve is open and the gasses mix and assuming that the temperature is constant, what is the final total pressure
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