Explain how many days are required for the concentration
The concentration of a chemical degrades in water according tofirst-order kinetics. The degradation constant is 0.2/day. If theinitial concentration is 100 mg/L, how many days are required for the concentration to reach 0.14 mg/L?
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The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritiuminitially in a sample is still present 30 years later?
You can afford to put $1,500 per quarter into the fund, and you will work for 40 years before retiring. After you retire, you will be paid a quarterly pension based on a 25-year payout. How much will you receive each quarter?
A current of 250 A flows for 24 hours at an anode where [Mn]2+ (aq)is being converted to MnO2 (s). What mass of MnO2 is deposited at this anode?
The width of a slit is 2.00 x 10-5 m. Light with a wavelength of 485 nm passes through this slit and falls on a screen that is located 0.55 m away. In the diffraction pattern, find the width of the bright fringe that is next to the central bright
Each glass of 2% milk contains 9 g of protein, 13 g of carbohydrates, and 300 mg of calcium. How many servings of each food should the dietician provide for the patient?
Why is soap not suitable for laundry use with hard water,whereas, the synthetic detergent is? What is the chemicaql composition of peanut oil?
Give the distance of the spot to the positive charge in meters (m). (Hint: The spot does not necessarily lie between the two charges.) (b) What would be the force on a charge of +14 C placed at this spot?
The heat of vaporization of water is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 12.00 g of liquid water at 100°C into 12.00 g of steam at 100°C?
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The purpose is to examine the psychological factors affecting how teenagers in an impoverished urban area spend their time outside of school using:
Prior to your taking this graduate HR law class you had heard of the term "gender stereotyping," but didn't know much about it.
Which of the following is a behavioral indicator related to Family? A) Developing school readiness and transition strategies B) Developing collaborative
In our readings, we learn more about the nature versus nurture argument. For this discussion, I want you to go in depth a bit more and debate the importance
Early food experiences can impact development over several learning domains, including Social and Emotional Development, Language
Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred