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The following half reaction takes place in a mercury battery used in hearing aids: HgO(s)+H2O(l)+2e^->Hg(l)+2OH^-(aq). a)is the half reaction an oxidation or reduction? b)what substance is oxidized or reduced? c)at which electrode would this half reaction occur?
write the equations involved in the following
Find the theoretical, percent yield and percent error of the reaction - Calculate the percent error of this reaction.
two mwthods were described for determining the volume of the flask used for the molar mass determination.
An experiment shows that a 247 mL gas sample has a mass of 0.432 g at a pressure of 747 mmHg and a temperature of 28 degrees celcius.What is the molar mass of the gas?
When the following equation is balanced, H2S + Fe(OH)3 ----> Fe2S3 + H2O the coefficient of H2S is
the practical benefits of using a more favorable direction of the reaction for a routine enzyme activity assay
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
calculate the equilibrium concentration of HI when 0.500 M HI, 0.0200 M H2, and 0.0200 M I2 are placed in a sealed flask and allowed to reach equilibrium. Kc for this reaction is 50 at 445 ºC.
If a 2.1 L reaction vessel initially contains 725 torr of cyclopropane at 485 degrees C , how long will it take for the partial pressure of cylclopropane to drop to below 102 torr .
How many moles of KMnO4 are present in 25.0 mL of a 0.0900 M solution?
Microwave ovens heat food by creating microwave electromagnetic radiation that is absorbed by water molecules in the food. Any material that does not have water in it will not absorb the radiation and will not get hot.
Calculate the heat that must be supplied to 0.104g of Ne(g) at 0.250 atm to raise its temperature from 22.0 degree Celsius to 60.0 degree Celsius at
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