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A battery incorporating a zinc anode runs for 1000 hours, generating a current of 2.056 amps. a.) how many coulombs of charge passed through the anode? b.) how many moles of electrons passed through the anode? c.) how many moles of zinc were oxidized? d.) by how many grams did the mass of of the zinc electrode change during this process?
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
What is the initial concentration (in M) when 19 mL of a iron(III) chloride solution was diluted with 18.5 mL of solvent to a final concentration of 0.576 M? Assume the volumes are additive.
Can someone explain to me how you would determine the molecular orbital theory diagrams associated with butene and overall the basic concept behind molecular orbital theory and drawing diagrams associated with it
A 1-L flask is filled with 1.10g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.25amt .What is the partial pressure of argon, in the flask? What is the partial pressure of ethane in the flask.
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
One company introduces carbonate by bubbling carbon dioxide into water until CT=10-3 M (equivalent to adding "H2CO3*" until CT = 1 x 10-3 M), a second adds sodium bicarbonate (NaHCO3) until CT = 10-3 M, and a third adds sodium carbonate until CT=1..
The standard reduction potiental for the reduction of Eu+3 to Eu+2 is -.43 volts... list atleast 3 substances capable of reducing Eu+3 to Eu+2
When 50 mL of 2M HCl(aq) is added to 50 mL of 2M NH3(aq), how much NH4Cl is formed?
Calculate the percent (by volume) of air that would be displaced when all of theN2 (l) get evaporated. it is given that Liquid nitrogen has a density of 0.807 g/mL
Calculate the pressure exerted by 1.0 mol C2H6 behaving as (a) a perfect gas, (b) a van der Waals gas when it is confined under the following conditions: (i) at 273.15 K in 22.414 dm3, (ii) at 1000 K in 100 cm3.
The addition of H2 to C=C double bonds is an important reaction used in the preparation of margarine from vegetable oils.
When you heat baking soda (NaHCO3), it breaks down into sodium carbonate powder (Na2CO3), carbon dioxide and water vapor. Write a correct thermo chemical equation and explain what it tells you about the reaction ( The enthalpy of this reaction is ..
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