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0.25 g of CuSO4 was added to 25 mL of deionized water. What wavelength of light would you recommend to characterize the solution's UV-Vis absorbance?
Assuming that at this wavelength, the molar absorptivity of CuSO4 is 1.8 M-1cm-1 and the path length is 1 cm, calculate the percentage transmittance of the measured solution.
Hydrochloric acid is added to zinc. How many mls of 0.500 M HCl are needed to react completely with 25.0 g of zinc metal
Problem- Using 25 mL volumetric flaks, prepare a minimum of 5 dilutions of the stock 250 ppm calcium solution to cover the range of 1-20 mg/L of calcium. Diluting to the mark with 0.50 M HCl.
A 3.9336 g mixture sample of BaCl2.2H2O (244.26g/mol) and KCl (74.55g/mol) was dissolved in water and diluted to 500.00 mL. A 25.00 mL of the solution is titrated with 0.1250 M AgNO3 with K2CrO4 as an indicator.
What is the temperature of 0.52 mol of gas at a pressure of 1.3 atm and a volume of 11.8 L?
Two resistors with values of 25 Ω and 35 Ω, respectively, are connected in series and hooked to a 12-V battery.
a gas has a volume of 4.00l at 0 degree c. what final temperature in degrees celsius is needed to cause the volume of
What will the pH of the equivalence point be when 10.00 mL of .0200M Carbonic acid is fully titrated to the 2nd end point using .05 M NaOH?
Water beads on the surface of a freshly waxed car hood. Use your knowledge of intermolecular forces to explain
Problem- Look up the structure of the following pesticides and show how they could interact with generic humic material. Atrazine, Fenitrothion, Chlorpyrifos, Chlordane, Chlorothalonil, Aldicarb, Malathion and Trifluralin
Copper Metal was deposited at the cathode of an electrolytic cell from a solution of Cu(NO3)2. The initial mass of the cathode was 16.4831 g and the final mass was 16.7569 g after 10.0 minutes using a current of 1.44 amperes.
The combustion reactions habitually involve oxygen reacting with a hydrocarbon and producing carbon dioxide and water. How to write a balanced chemical equation for the combustion of Propane, 2-pentyne, and 2,3-dimethyl-1-hexene
Complete the Lewis structure and determine the formal charges of the atoms consistent with each of the six proposed bonding structures of the neutral molecule NOF
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