calculate the concentration of the unknown KMnO4 solution in ppm

Q: I have to use beers law

A: Absorbance is calculated as follows,

Q: You are given the following solutions, will have the lowest %T and A will have the lowest…

A: Given A set of solutions with 5 different color intensity

Q: Which of two instrumental modes, atomic absorption or atomic emission, results in the better…

A: Atomic Absorption (AA) and Atomic Emission (AE) are both spectroscopic techniques used for the…

Q: The transmittance of a solution in 1-cm cuvette is 60.0%. Calculate the transmittance of the same…

A:

Q: A student creates a sports drink by dissolving 5.0 g of powder in 250 mL of water. The green colour…

A: Given, absorbance= 0.450  Molecular weight of dye X is 418.4 g/mol  Mass of powder is 5 g  We know…

Q: What is the relationship between: Choose between directly proportional or inversely proportional!…

A: We know that the Beer-lambert Law  A = E.c.l      Where , A= Absorbance                  E = molar…

Q: 1. Virtual Lab Questic particular waveleng absorptivity? What same conditions?

A: Absorbance = -Log [Transmittance]   Transmittance = 66 % = 66100 = 0.66   Absorbance = -Log0.66 =…

Q: Choose all correct answers for the following. Percent Transmittance is defined as:   Question 6…

A: Transmittance is defined as the amount of light that is transmitted after passing through the…

Q: Why is 800nm used for the wavelength when measuring the absorbance of the blue copper II sulfate…

A: Wavelength and light are related to each other.  If the light is passed through the prism , it emits…

Q: A student combines Fe(NO3)3 solution and KSCN solution to produce a solution in which the initial…

A: The objective of this question is to determine the equilibrium constant (Kc) for the reaction Fe3+ +…

Q: Choose all correct answers for the following. Percent Transmittance is defined as:   Question 6…

A: Transmittance is the fraction of light that is transmitted after passing through the sample.

Q: A 50.0 mg sample was dissolved in acid and then diluted to a total volume of 50.00 mL. If 1.000 mL…

A: In spectrophotometric measurements of analyte concentration, measured absorbance related to the…

Q: Calculate the absorbance for a solution containing a colored species with a percent transmittance…

A:

Q: a) Convert the absorption value of 0.173 into % transmittance b) Convert the transmittance value of…

A:

Q: you are measuring manganese (Mn) absorption using AAS, which hollow cathode lamp would you select as…

A: Hollow Cathode lamps are ideal source of spectral lines that are used for testing in laboratories.…

Q: Please provide a clear solution for the following question: Titanium is reacted with hydrogen…

A: According to Beer Lambert's law the absorbance is directly proportional to the concentration and…

Q: Match the terms below to make 2 correct statements: 2 1 The concentration of a dilute solution is…

A: Absorbance,  A = ε C l ε = Molar absorption coefficientC = Molar concentrationl = optical path…

Q: A beam of light with an irradiance of Po passes through a solution of a substance that can absorb…

A: Molar absorbtivity (ε) = A/bc              where, b= path length                          and c =…

Q: A solution’s transmittance is 35.0%. What is the transmittance if you dilute the solution to half of…

A:

Q: A 0.00002415 mol dm-3 solution of a substance had an absorbance of 0.325 in a 0.5 cm path length…

A: The objective of this question is to calculate the molar absorption coefficient for a substance…

Q: A mixture solution of Co(II) and Ni(II) shows an absorbance of 0.500 at 500 nm. What percentage of…

A: Given that, A solution containing Co(II) and Ni(II) which shows absorbance 0.50 at 500 nm. Firstly,…

Q: You are working in a laboratory that makes frequent use of a scanning tunneling microscope (STM) to…

A: