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A 26.79 g sample of a substance is initially at 23.6 C. After absorbing 1001 J of heat, the temperature of the substance is 198.1 C. What is the specific heat (c) of the substance?
Calculate the [HNO3] in each aqueous solution at 25C and classify each solution as acidic or basic
At what temperature would the population of the first rotational level of HCl be 1/e times the population of the ground state? Rotational constant for HCl, B, is equal to 10.59 cm-1.
Calculate the pressure and composition of air 100 miles above the surface of the earth assuming that the atmosphere has a temperature of 0 celsius independent of altitude. The correct answer is 3.27 X 10^-9 bar; yO2=0.015, yN2=0.985 but I don't kn..
Propose the kinds of attractive forces that might bind congo red to cotton fabric.
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 20 A. Express your answer using two significant figures.
How many moles of ammonium ions are released when 1.6 mol of ammonium phosphate, (NH4)3PO4, is dissolved in water?
the gaseous mixture was removed and dissolved in more water. Sufficient silver (I) ion was added to precipitate the chloride ion completely as silver chloride. If 3.59 g AgCl was obtained, what is the value of Kc at 619ºC?
If the concentration of EDTA in the blood of the patient is 2.60x10^-8 M and the formation constant for the complex, {Pb(EDTA)}2- is 2.00x10^18, what is the concentration ratio of the free (and potentially toxic) Pb2+(aq) in the blood to the much ..
The products of a specific reaction and the side products or impurities? Explain specifically what would be observed for this pair of compounds: 4-bromoacetanilide and 2-bromoacetanilide
How many mL of 0.220 M of NaOH are needed to completely hydrolyze 2.40 grams of propyl acetate.
how much heat does your body lose when 2.95g of sweat evaporates from your skin at 25 degrees Cecilius
The oxygen on the mineral surface gave emitted electron energies at 531 eV, corresponding to the 1s orbital of oxygen. Overall the researchers concluded that oxidation states were +2 for Hg and -2 for O.
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