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Explain the starting voltage of a fresh alkaline battery is 1.70 V. State the voltage decreases during discharge and is 0.85 V when the battery has delivered its rated capacity. Define if we assume that the voltage declines linearly as current are withdrawn, educated guess the total maximum electrical work the battery could carry out during discharge
Calculate the standard heat of reaction, or for this reaction using the given data. Also consider that the standard enthalpy of the formation of elements in their pure form is considered to be zero.
Tetraphosphorus decaoxide reacts with water to form phosphoric acid, a major industrial acid. In the laboratory, the oxide is used as a drying agent.
Ferrocene cannot be nitrated using the conventional HNO3-H2SO4 mixed acid conditions, even though nitration is an electrophilic
A sample of gas has a mass of 38.7mg . Its volume is 224mL at a temperature of 57 degrees Celsius and a pressure of 868torr . Find the molar mass of the gas.
Using the scheme of analysis as a guide, give the formula for a chemical substance that will behave as indicated- Form a precipitate with KCI solution and also with CuCl2-
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
the reaction is first order in and under certain conditions has a rate constant of 0.00752 at 20.0 . a reaction vessel
What is the enthalpy of reaction, (triangle) H, for the formation of Tungsten carbide, WC, from the elements? W(s) + C(graphite) -> WC(s)
What relationship exists between H+ ion concentration and OH- ion concentration? What is the OH- concentration in an aqueous solution where the H+
what is the delta S in J/K*mole when 1.645 grams of methane (FW=16.04) at 0.1091 atm pressure is compressed by a factor of 8.064 at a constant temperature of 22.81
A pstient is administered mercury-197 to help evaluate kidney fuction. Mercury-197 has a half - life of 65 hours. what fraction of an initial of an initial does of mercury
Grignard reagent and carbonyl-containing compound. Suppose scheme one involves the reaction of the Grignard reagent containing more carbon atoms with the carbonyl compound containing less carbon atoms and scheme two involves the reaction of the Gr..
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