Define why an object whose color is purple actually absorbs

Assignment Help Chemistry
Reference no: EM13195962

1. Explain why an object whose color is purple actually absorbs visible light in the green wavelength region.

2. If the concentration of an unknown solution we were studying in a Beer's Law experiment were higher than the range of concentrations used to prepare the standard plot, suggest how we could determine its concentration. Suggest possible limitations.

3. A solution containing 0.010 moles of some copmlex ion in 100.0mL of solution was observed to transmit 65/0% of the incident light compared to an appropriate blank. a) what is the absorption of the solution at this wavelength? b) what fraction of light would be transmitted by a solution four times as concentrated?

4. A sample in a 1.0 cm cell is determined to transmit 80.0% of the light at a fixed wavelength. If the molar absorptivity of this substance at this wavelength is 2.3, what is the concentration of the substance?

5. a) what are the factors that could lead to deviations from Beer's law? b) Name at least three factors that could lead to experimental errors in the measurements made in this experiment.

Reference no: EM13195962

Questions Cloud

Historical developments of philosophy : Historical Developments of(Epistemology, Metaphysics, moral , political , social, eastern , structuralism, deconstruction, post-colonial, feminism)philosophy.
What is working capital management : What is working capital management and how does a company manage and measure liquidity?
Differentiate between technical-behavioral definitions : Differentiate between the technical and behavioral definitions of an organization. Explain whether these definitions are complementary or contradictory. Discuss how these different views relate to information systems.
What is a dividend policy : How does a dividend policy affect the value of a company and what are the factors involved with setting a dividend policy?
Define why an object whose color is purple actually absorbs : Explain why an object whose color is purple actually absorbs visible light in the green wavelength region.
Assess the difference between an intranet and extranet : Assess the difference between an Intranet and Extranet. Construct example of how the four business functions could use each one.
What is a stock split : What is a cash, special, or stock dividend, what is a stock split and why is a liquidating dividend noteworthy?
Epistemology-metaphysics-moral-political-social and eastern : Principal issue of (Epistemology, Metaphysics, moral , political , social, eastern , structuralism, deconstruction, post-colonial, feminism)philosophy.
How much must be paid back : An amount of $48,000 is borrowed for 14 years at 6.25 interest, compounded annually. If the loan is paid in full at the end of that period, how much must be paid back?

Reviews

Write a Review

Chemistry Questions & Answers

  How much heat (in kj) is evolved

How much heat (in kJ) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -45.0C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.

  Calculate concentration of ammonium ions and sulfate ions

A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.00 mL sample of this stock solution is added to 57.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..

  Compute the equilibrium constant for the reaction

Given the thermodynamic data in the data table below, calculate the equilibrium constant for the reaction: 2SO2 (g) + O2(g/0 2SO3(g), Substance Delta Hf (kj/mol) Delta S (J/K *mol)

  State aluminum was reacted with hydrochloric acid

a 1.00 g sample of an alloy of copper and aluminum was reacted with hydrochloric acid , and 85.0 mL of hydrogen gas (measured atSTP) was produced.

  Calculate the debye lengths

Compute the number of gms of CoCl2 that would be needed to prepare the solutions:(a) 550 mL of a 1.75 M solution (b) 210 mL of a 0.0180 M solution.

  What is the mass of iron in grams in the sample

A sample of molten iron occupies a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?

  Define intravenous solution containing

If an intravenous solution containing 123 mg of a drug substance in each 250-mL bottle is to be administered at the rate of 200mcg of drug per minute,how many milliliters of the solution

  Sodium carbonate vs calcium carbonate

Why Do I Require More CaCO3 to Raise pH than Predicted? If you can remember back to a discussion and inquiry we exchanged last week concerning the use of sodium carbonate vs. calcium carbonate

  How many moles of al3+ are in the new solution

When 25mL of a 120mL stock solution containing 2M AlCl3 is diluted to 80mL, how many moles of Al3+ are in the new solution.

  What mass of agbr can dissolve

Solutions of sodium thiosulfate are used to dissolve unexposed AgBr ( Ksp= 5.0E-13) in the developing process for black-and-white film. What mass of AgBr can dissolve in 1.00L of 0.500M Na2S2O3?

  Calculate the average atomic mass of argon

Three isotopes of argon occur in nature - 36Ar, 38Ar, 40Ar. Calculate the average atomic mass of argon to two decimal places, given the following relative atomic masses and the abundances of each of the isotopes: argon

  State vessel was pressurized with hydrogen gas and heated

After the vessel was pressurized with hydrogen gas and heated to 80 degrees C, the monometer showed the initial pressure inside the "bomb" to be 77.2 atm. Assuming 100% yield, calculate the pressure that should be inside the "bomb" when the reacti..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd