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A nickel compound NiL2(where L is a halide) has a molar absorptivity of 1250(mol/L)^-1cm^- at 425nm (max) when a 50.00mL solution containing 0.00109g of this compound was analyzed using the same procedure as the one used in this Experiment, an absorbance of 0.125 was observed at 425nm . what is the molar mass of NiL2? identify L(assum a path length of 1.00 cm for the cuvet)
Determine the molar concentration of the original hydrofluoric acid solution, and find the pH of the original hydrofluoric acid solution.
what type of phase change does a substance undergo at .750atm and 30 degrees celsius
When a strong base is added to a solution of CuSO4, which is pale blue, a precipitate forms and the solution above the precipitate is colorless. What is the net chemical equation that describes this reaction? Include the phases of all species in t..
Calculate the volume (in mL) of He collected at STP when 3.60 g of pure 226Ra is stored in a closed container for 135 years.
Converting Grams and Moles, To do this assignment, use your calculator to do the calculations required. Then invert the calculator to read the message word. Insert the message word into the appropriate space in the statement
100ml of a 0.4 mol/L acetic acid is mixed with 20ml of a 1.8 mol/L NaOH. Calculate the pH of this buffer (pka acetic acid = 4.76). What is the pH of 100mL of a solution made using 5 mL of 1 M Na2HPO4 and 5mL of NaH2PO4
A balloon has a volume of 1.20 L at 24.0oC. The balloon is heated to 48.0oC. Calculate the new volume of the balloon.
What is the approximate ph measurement 0.010 M NaH3 and balanced equation showing acidity/basicity. NaH3 is mixed with an universal indicator
Consider the fermentation of one molecule of glucose (Glc) to two molecules of lactate (Lac): Glc 2 Lac. Which of the following sets of concentrations would result in the largest release of free energy at 30°C
Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area of 1.50 μm2
Some of Milikan's oil-drop data are shown in the table. the measured quantities were not actual charges on oil drops but were proportional to these charges.
chemical potential that is 1.00 KJ mol lss than an ideal gas under the same conditions. What kind of intermolecular forces dominate the system? what is the fugacity of the gas?
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