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What is the minimum voltage needed to produce a reaction in the electrolysis of copper(II) sulfate using inert electrodes? This is the same as asking what is Ecell for the electrolytic cell. However, express your answer as a positive number.
In an experiment to determine the formula of a salt M2( SO4)3 x XH2O a sample of 2.239g of the sample was reacted with BaCl2. After filtration and drying the sample of BaSO4 weight 3.329g
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
Find the values of K for the equilibria established when aqueous solutions of the following are mixed.
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
Show how a buffer system will not drastically change its pH by addition of a certain amount of a strong acid or base. Use 0.50 M buffer system and show how the pH will change upon addition of 10.0 mL each of ) 0.10 M of HCl or NaOH. Use any combin..
A first order decomposition reaction has a rate constant of 0.0418yr-1. What is the half-life of the reaction in yr
A possible side product of the aldol reaction of cinnamaldehyde and acetone is the self-condensation of acetone. draw the structure of the side product
Since the sample is an unknown solid, I will have to make a solution without knowing exactly what to mix. In your expertise, how much of the solid do you expect to dissolve in what volume of water and what is your reasons for choosing these amount..
Determine the oxidation numbers of each elements in the following reaction, identify which of them are oxidized or reduced, if any: 2MnCO3(s)+O2(g) ---> 2MnO2(s)+2CO2(g)
Using the data shown in the table, calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 3.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation
in a gas mixture the partial pressures are argon 455 neon 80 and nitrogen 175 .what is the total pressure exerted by
The density of octane is 0.703 g/mL. What mass (in g) will a 0.996 gallon sample of octane have
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