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Problem- Draw a diagram of the cells in which the following reactions occur. In each case label: the cation and anion in the anode compartment, the cation and anion in the cathode compartment, the composition of the electrode in the anode compartment and the composition of the electrode in the cathode compartment. Also, the half-reaction of each electrode, the ions in the anode and cathode compartments and salt bridge, the direction of electron flow, and the direction of ion movement.
Al(s) + 3H+aq) ---> Al3+(aq) + 3/2H2(g)
Answer showing how to make each solution will get rated
While an excess of Al2O3 is added to 174mL of 2.70M H2SO4, 45.2g Al2 (SO4)3 are isolated? Explain what is the % yield. Define how many moles of H2SO4 are needed if 100.0g of Al2(SO)3 are to be produced
Balance the equation below using the smallest whole numbers for coefficients assuming the redox reaction occurs in acid solution. Add water where appropriate
A 25.0 mL sample of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalence point. (Kb for aniline = 4.0 x 10-10)
a liver biopsy demonstrates cystathionine synthase and cystathionase levels are normal. this patient may have a deficiency of
Compute the value from the previous slide (that is 4%) utilizing the equation for R pretentious light is traveling from air of? = 1.00 into glass of? = 1.50. Also do the calculation for? = 1.70.
Why is it important that all determinations of acid-base titrations be done at the same temperature
A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL. Titration of a 50.0 mL aliquot of this solution required 42.5 mL of 0.0900 M NaOH to reach the end point. Determin the acid content of the vinegar as wt. % acetic acid.
Write the overall equation for the reaction. B) Do you expect this reaction to go by an E1 or an E2 mechanism?
water and phenol are only partially miscible at temperature below 66.8oc. in a mixture prepare at 29.6oc from 50.0g
a sample of cadmium with mass 2.248g is dissolved in 3.00M HCl. What volume of HCl is required to dissolve the Cd. (Cd dissolves in HCl to form Cd^2+)
Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron.
find out the exact significant figures for each of the values.indicate the number of significant figures in each of
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