What is the concentration of the chromate solution
K2CrO4 has an absorbance value 0.670 in a cell of 1.00cm path-length at a wavelength of 370nm. The value of the molar absorbtivity is 7.36x103M-1cm-1 for K2CrO4 at the wavelength. What is the concentration of this chromate solution?
Expected delivery within 24 Hours
An aluminum rod is 18.5 cm long at 20 degrees celcius and has a mass of 350g. If 10,000J of energy is added to the rod by heat, what is the change in length of the rod?
Light with a frequency of 7.34 × 1014 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm
Taking the last page of the Brainard, Bennis and Farrell case, and assuming that you are about to distribute 1000 points to the eight partners, who will you rank in the top 5 and why? Can you define the strategy of the organization (using) and d
A weight lifter lifts a set of weights a vertical distance of 1.56m. If A constant net force of 379N Is exerted on the weights, what's the net work done on the weights?
The value of the molar absorbtivity is 7.36x103M-1cm-1 for K2CrO4 at the wavelength. What is the concentration of this chromate solution?
Derive an equation for the radius r of the circular path that the electrons follow in terms of the magnetic field B, the electrons' velocity v, charge e, and mass m. You may assume that the electrons move at right angles to the magnetic field.
Discuss how you see the "war on terrorism" as of this date. Do you think the United States should be engaged in such a war? Give reasons for or against this "war" and whether or not we are giving up our own principles to wage this war
What is the angular speed of rotation of the Earth? (2) An old 33 1/3 rpm record player starts from rest and reaches operating speed in 2.00 seconds. Through what angle did it turn in those 2.00 seconds?
A 2200-kg pile driver is used to drive a steel beam into the ground. The pile driver falls 7.00 m before coming into contact with the top of the beam, and it drives the beam 14.0 cm farther into the ground as it comes to rest. Using energy conside
1935465
Questions Asked
3,689
Active Tutors
1415245
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
Provide five (5) reasons why working from a person centred, strengths-based positive framework, and providing positive lifestyle strategies can reduce
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Question: Identify a true statement about validity as applied to a test. Multiple choice question
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Early food experiences can impact development over several learning domains, including Social and Emotional Development, Language
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.