Calculate the concentrations of a and b in solutions

Assignment Help Mechanical Engineering
Reference no: EM131083543

When measured with a 1.00-cm cell, a 7.50 X 10-5 M solution of species A exhibited absorbances of 0.155 and 0.755 at 475 and 700 nm, respectively. A 4.25 x 10-5) M solution of species B gave absorbanees of 0.702 and 0.091 under the same circumstances. Calculate the concentrations of A and B in solutions that yielded the following absorbance data in a 2.50-em cell:

(a) 0.439 at 475 nm and 1.025 at 700 nm;

(b) 0.662 at 475 nm and 0.815 at 700 nm.

Reference no: EM131083543

Questions Cloud

Sum of two independent poisson processes : or a Poisson process of rate λ, the Bernoulli arrival approximation assumes that in any very small interval of length ?, there is either 0 arrivals with probability 1-λ? or 1 arrival with probability λ?. Use this approximation to prove Theorem 10..
Risk-averse person prefers gamble : Which of the following statements is TRUE? A risk-averse person prefers gamble B to gamble A. A risk-averse person prefers gamble A to gamble B. A risk-neutral person prefers gamble A to gamble B. A risk-neutral person prefers gamble B to gamble A.
What is intellectual capital : What is intellectual capital? What is the role of intellectual capital in an organization? How has the value of intellectual capital evolved over time?
Representing the market for loanable funds : Draw the graph representing the market for loanable funds. Label the demand curve D1 and the supply curve S1. Given D1 and S1, if the banks charged 10% interest on loans, what would the situation be in the market. Is there a shortage or a surplus? By..
Calculate the concentrations of a and b in solutions : Calculate the concentrations of A and B in solutions that yielded the following absorbance data in a 2.50-em cell:
Industries and parts of sectors of our economies : Many rich developed countries (like countries of the EU or the US have suffered from inexpensive imports coming from Asia and other emerging countries. As a result, many industries and parts of sectors of our economies have disappeard since the on..
Resourcing option for domestic firm : Which of the following is not a "resourcing" option for a domestic firm?
Common perceptions of slavery-what was racial component : Common perceptions of slavery, especially in the United States, associate it with Africans. Was this the case prior to 1500? What was the racial component of slavery during this period? Examine the reasons for the differences in Portuguese involvemen..
Identically distributed uniform random variables : U1, U2,... are independent identically distributed uniform random variables with parameters 0 and 1. (a) Let Xi = - ln Ui. What is P[Xi > x]?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Package design

Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.

  Mechanical engineering questions

Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.

  Automatic control

DOF system and Find the differential equation describing the system

  Write a paper on boyle''s law

Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.

  Verify the law for parallelogram of forces

To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.

  Discharge pressure of the compressor

What is the discharge revised discharge pressure of the compressor.

  The Case for Global Accounting Standards

The role of IFRS in both developing and developed capital markets.

  Wind turbine

Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.

  Advanced design methodologies

8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..

  Design of absorption column and the cooler

Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.

  Determine the maximum total bending moment

Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.

  Force of the water on the gate

Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.

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