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Use the values from the table of reduction potentials on the last page to determine ?Gº and Keq for the reaction as listed below. Pb (s) + Sn2+ (aq) ? Pb2+ (aq) + Sn (s) ?Gº = __________ kJ Keq = __________
You need to produce a buffer solution that has a pH of 5.06. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? T..
A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains. [Zn2+]
4HCl + MnO2 = MnCl2 + 2H2O + Cl2 When 1.22 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
CO exhibits an infrared absorption band at 2143 cm^-1 that is attributed to the symmetric stretching transition. Assuming this corresponds to a transition from the v=0 to v=1 vibrational quantum number
The value of E° for each of the cells is 2.04 V. Suppose that in starting a car on a cold morning a current of 108 A is drawn for 14 seconds from the car battery. How many grams of Pb would be consumed? (M r(Pb)=207.19 g/mol)
in a sodium borohydride reduction experiment explain any color changes observed when sodium borohydride was added.
How many products are formed in this reaction? Which of the products are triatomic molecules? How many of the substances involved in this reaction are compounds?
The total mass of the car plus sand is 85,000 . The hopper door is not fully closed so sand leaks out the bottom. After 18.0 minutes, 1.34×104 of sand has leaked out. Then what is the speed of the railroad car?
calculate what volume of each 0.50M solution should be mixed to give a total volume of 50.0mL AND the reactants in the correct stoichiometry. Also write a data table in the space given
how many moles of oxygen are consumed with the combustion of one mole of butane. C4H10?
Please give a balanced equation with a stepwise mechanism for the preparation of 3,4-methylenedioxychalcone from piperonaldehyde and acetophenone (with ethanol)
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