Calculate the fe molarity of the sample

Assignment Help Chemistry
Reference no: EM13989960

Iron (II) ions catalyze the oxidation of luminal. The intensity of the resulting chemiluminescence has been shown to increase linearly with iron(II) concentration from 10-10 to 10-8 M. Exactly 1.00 ml of water was added to a 2.00 ml aliquot of an unknown Fe(II) solution, followed by 2.00 ml of a dilute H2O2 solution and 1.00 ml of an alkaline solution of luminol. The chemiluminescent signal from the mixture was integrated over a 10.0 s period and found to be 16.1. To a second 2.00 ml aliquot of the sample was added 1.00 ml of a 5.15 x 10-5 M Fe(II) solution followed by the same volume of H2O2 and luminol. The integrated intensity was 29.6. Calculate the Fe(II) molarity of the sample.

Reference no: EM13989960

Questions Cloud

What type of selection result directional and stabilizing : A vestigial structure is one of marginal, if any importance to an organism. Vestigial structures are historical remnants of structures that had important functions in ancestors. Provide six examples of vestigial structures, and briefly explain why..
How important are those sat in youtube : If one of your high school students asks you if he or she should take the SAT or ACT, how would you respond?" "So how important are those SAT's" in YouTube
Describing the role of standardized admission test : How would you advise a student or family who are concerned about the influence of testing in college admission? What is the appropriate way of describing the role of standardized admission test in college admission decisions
Probability that the inspector will have to walk : If the welds are located 100 ft apart, what is the probability that the inspector will have to walk 5000 ft? What is the probability that the inspector will have to walk more than 5000 ft.
Calculate the fe molarity of the sample : The chemiluminescent signal from the mixture was integrated over a 10.0 s period and found to be 16.1. To a second 2.00 ml aliquot of the sample was added 1.00 ml of a 5.15 x 10-5 M Fe(II) solution followed by the same volume of H2O2 and luminol. ..
Define the sociobiology terms prepared and counterprepared : Define the sociobiology terms "prepared", "counterprepared", and "unprepared". Give an example of a prepared behavior. Summarize the basic process by which DNA codes for a protein
Determine the limiting reagent in the reaction : Determine the limiting reagent in the reaction between 1,6-diaminohexane and scabbily chloride. Calculate the percent yield of nylon using the molecular weight of one repeating monomer unit for the weight of the product.
Paper - driving safety and types of distractions : Topic: Driving Safety and Types of Distractions. Turn in the proposed methods section for your research paper as well as your introduction and literature review
Why men are paid more than women for the same position : Write TWO PAGE about your position on "Is gender discrimination the primary reason why men are paid more than women for the same position?" and offer some solutions on how to minimize the difference in pay between men and women.

Reviews

Write a Review

Chemistry Questions & Answers

  How many grams of dry nh4cl need to be added

How many grams of dry NH4Cl need to be added to 2.10L of a 0.500 M solution of ammonia, , to prepare a buffer solution that has a of 8.84? Kb for ammonia is 1.8*10^-5.

  Compute the molarity as well as mole fraction of ethylene

An aqueous antifreeze solution is 40.0% ethylene glycole (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Compute the molarity, molarity, as well as mole fraction of the ethylene glycol.

  Explain efficient nuclear power plant

If your electricity comes from a 33% efficient nuclear power plant, how many Pu-239 nuclei are produced as a result of your leaving the light on?

  What is the ph of a buffer solution

Problem- If a buffer solution is .140 M in a weak base (k_b=7.0*10^-5) and .530 M in its conjugate acid, what is the pH. Please illustrate work if possible thanks

  Explain what is the specific heat of the gas

During this process, 346 J of work was done by the system and its internal energy 9185 J. What is the specific heat of the gas?

  State how many grams of tetraphosphorus decaoxide needed

According to the subsequent reaction, explain how many grams of tetraphosphorus decaoxide are necessary for the complete reaction of 32.9 grams of perchloric acid (HClO4)

  Explain what mass of gas is present

A 100.0mL flask contains sulfur dioxide at 0.77atm and 30 degrees C. Explain what mass of gas is present

  The contained no lead at the time when it first crystallized

A sample of rock is found to have a 235U/207Pb ratio of 1 to 15. From its minerology, we know that it contained no lead at the time when it first crystallized. How old is the rock

  How much energy in kilojoules is required to convert 195ml

how much energy in kilojoules is required to convert 195ml of diethyle ether at its boiling point from liquid to vapor

  A strip of magnesium of mass 15g is dropped into a beaker

a strip of magnesium of mass 15g is dropped into a beaker of dilutenbsp hydrochloric acid. calculate the work done in j

  Depict a phase diagram normal boiling boint

Draw a phase Diagram (label axes), showing normal boiling boint, critical temperature (b) define critical temperature

  How to solve this reaction

Need help figuring out the proper steps on how to solve -What volume of 1.25M HCl in liters is needed to react completely

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