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Which of the following is the strongest reducing agent? A. Cu+ (aq) B. Cu (s) C. Fe2+ (aq) D. H2 (g) E. Br2 (l)? The answer is H2. Why?
The observed temperature increase is 2.35 °C. If the heat capacity of the calorimeter is 44.50 kJ•K-1, how many nutritional Calories are there per gram of the candy
an evaluation of r was performed following the procedure. the barometric pressure was 736torr the temperature was 295k
What is the density of the unknown? I don't know how to get from g/cm^3 to g/ml
All living things contain carbon. Most of this carbon is stable carbon-12. However, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time
Question- A student is presented with a 0.110 M solution of an unknown weak acid. The student measures the pH of that solution and determines a value of 3.25 for the unknown solution. What then, is the Ka of this weak acid. What is the pKa
a solution of 62.4 g of insulin in enough water to make 1.000 l of solution has an osmotic pressure of 0.305 atm at
calculate the unknown concentration for the analyte noted as (xM) from the potential data given at 25 oC Pt/Fe 2+ (0.05 M)//Ag+ (xM) /Ag.
Problem- Draw the structures of the intermediate imines that would be formed as well as those of the final amine product in these reactions
What wavelength of light would be absorbed in raising an electron from the second level to the third level.
A 1M soultion of sodium benzoate has a ph of 9.11. what is the value of Ka that would be calculated for benzoic acid based upon this measurement
Determine which species is present in the lowest concentration in 0.10 M H3A solution?
Solid silicon and solid magnesium chloride form when silicon trichloride gas reacts with magnesium metal. Write a word equation and an unbalanced formula equation.
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