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Find out the mass of the copper that was removed from the penny. Presuming excess nitric acid, computing the grams of copper (II) nitrate that must have formed in the reaction
Original penny weight: 3.0712gAfter nitric acid bath: 2.1476gUse this reaction:Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2H20(l) + 2NO2(l)
a 45.5g sample of copper at 99.8 celsius is dropped into a beaker containing 151 g of water at 18.5 celsius. what is
Estimate the vapor pressure of water a solution containing 30 g of glucose per 500 g of water at 25C, given that the vapor pressure of pure water is 2.338 KPa at the same temperature.
The concentration of silicon in an iron-silicon alloy is 0.45 wt%. What is the concentration in kilograms of silicon per cubic meter of alloy
Calculate the amount of heat required to heat a 3.8kg gold bar from 27 degree celsius to 63 degree celsius.
hydrazine n2h4 is made by the reaction of ammonia nh3 with hypochlorite ocl-. given the following equation 420 kg of
To 250 mL of a 0.065 M solution of barium nitrate is added 100 mL of a 0.121 M solution of sulfuric acid. Determine the concentration of aqueous barium ions remaining in the solution after complete precipitation of barium sulfate.
Cyclopropane (C3H6) reacts to form propene (C3H6) in the gas phase. The reaction is first order in cylclopropane and has a rate constant of 5.87 x 10^-4/s at 485 degrees Celsius.
The density of water is 1.00 g/ml and the density of propanol C3H8O is 0.866 g/ml. What volume of propanol contains the same number of molecules are present in 127.1ml of water
The rate law for the rearrangement of methylisocyanide (CH3NC) to acetontrile (CH3CN) at 800 K is:
Calculate the solubility of copper (II) iodate in 0.56 M copper (II) nitrate. Ksp* is 7.4x10-8 M3.
What are the partial pressure in atm of the gases in a mixture that contains 1.0g of hydrogen and 8.0g of Argon in a 3.0L container at 27.0C. What is the total pressure
an electrolytic cell is constructed that produces solid pbfrom . if 2.82 a flows for 19 minutes through the cell. how
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