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Problem- A 0.0000650 M sample of Compound X in a solvent has an absorbance of 0.225 at 528 nm in a 1.000-cm cuvet. The solvent alone has an absorbance of 0.056.
What is the molar absorptivity of Compound X?
A different sample of Compound X in the same solvent has an absorbance of 0.483 at 528 nm when measured with the same cuvet.
What is the concentration of this second sample?
I am not able to determine the correct answer for the above question please helps me to get the correct answer
A 5.00 L volume of methane gas is cooled from 300 K to 150 K. If the pressure remains constant, what is the final volume
Enough of a monoprotic acid is dissolved in water to produce a 0.0198 M solution. The pH of the resulting solution is 6.37. Calculate the Ka for the acid.
Write the chemical equation for the dissolution of NH4Cl in water. Write the chemical equation for the dissolution of NH4Cl in water, including heat
Calculate P,V and T for initial and final states of each process and produce a plot of the two processes on a P,V diagram. Without resorting to equations, explain why the result for part (b) is greater than or less than the result for part (a).
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.23 M arsenic acid solution.
Draw the skeletal structure of the enantiomer(s) of (2R,4R)-(-)-rose oxide. Draw the skeletal structure of the diastereomer(s) of (2R,4R)-(-)-rose oxide.
how many moles of zinc were oxidized. by how many grams did the mass of of the zinc electrode change during this process
The Reaction of Ba(OH)2+2HCl=BaCl2+2H2O it requires 12.01mL of .03582 M HCl to react with 25.00ml of Ba(OH)2 solution calculate the concentration of the Ba(OH)
Calculate the osmotic pressure of a solution containing 18.55 of hemoglobin in 13.7 of solution at 24. The molar mass of hemoglobin is .
The eq molar concentration of the FeSCN2+ is found spetrophotometrically and is 7.00*10-4 M. Compute the eq constant for FeSCN2+.
Problem- The group 6A, also called group 16, elements are oxygen, sulfur, selenium, tellurium, polonium, and element 116. Order the group 6A elements according to their ability to act as a reducing agent. Rank from strongest to weakest reducing ag..
How many grams of KO2 are needed to react completely with 7.328 g of CO2.
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