Explain the average depth of lake superior

Assignment Help Chemistry
Reference no: EM13282770

PCBs are transported through the environment in the vapor phase to Lake Superior. Let's assume that the flux to this lake is almost all due to rainfall, which has an average PCB concentration of 30 ng/L. The average depth of Lake Superior is 150 m, and the rainfall averages 80 cm/year. Assume that everything has been at steady state over the last several decades and that the residence time of PCBs in the lake is 3 years. For the moment, don't worry about deposition of PCBs to the sediment of this lake. What is the concentration of PCBs in Lake Superior water?

Reference no: EM13282770

Questions Cloud

Find the wavelength of the radio waves from this station : Announcers at a certain radio station say that they are at "95 FM on your dial," meaning that they transmit at a frequency of 95 MHz, find the wavelength of the radio waves from this station
Calculate the annual return on the mutual fund : If the investor reinvests the annual returns paid on the investment, calculate the annual return on the mutual fund over the two year investment period.
State pcb concentration in the air inside a typical house : The PCB concentration in the air inside a typical house is 400 ng/m3, and the ventilation rate is such that it takes, on average, 10 h to change the indoor air. If the indoor PCBs are coming from a leaking capacitor, how much leaks per year
Define what is the value of a preferred stock : What is the value of a preferred stock that pays an annual dividend of $2.00 when the required rate of return is 5 percent?
Explain the average depth of lake superior : PCBs are transported through the environment in the vapor phase to Lake Superior. Let's assume that the flux to this lake is almost all due to rainfall, which has an average PCB concentration of 30 ng/L. The average depth of Lake Superior is 150 m..
How much was your investment worth prior to the split : Assuming Widget's Extrmeme's management decides to split the stock two for one, how many shares would you own after the split?
Calculate the bond approximate yield to maturity : An investor is considering purchasing a bond with a 3.50 percent coupon interest rate, a par value of $1,000, and a market price of $917.50. The bond will mature in 9 years. Based on this information, answer the following questions.
Determine what is the highest chopper frequency possible : A chopper controlled electric train is powered from a 1500 VDE supply. The power semi- conductor switch element hasaminimum effectice ON time of 40 Ms. during starting and slowspeed running, the output of the chopper has to go as low as 15 V.
Explain synthesized from phenol and acetone with hcl : Bisphenol A is an important component of many polymers, including polycarbonates, polyuethanes, and epoxy resins. It is synthesized from phenol and acetone with HCl as a catalyst. Propose a mechanism.

Reviews

Write a Review

Chemistry Questions & Answers

  What minimum mass of succimer in milligrams is needed

Assume that patient blood lead levels are 0.600 mg/L that total blood volume is 5.0 L and that 1 mol of succimer binds 1 mol of lead.

  Calculate the ksp for the compound

the pH of a saturated solution of a metal hydroxide MOH is 9.68. calculate the Ksp for the compound

  How many moles of koh were in the sample

a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with 42.5 mL of 0.575 M acetic acid. How many moles of KOH were in the sample?

  Express the concentration of an aqueous solution

Express the concentration of a 0.0860 M aqueous solution of fluoride, F-, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.

  What is the total number of cl ions in the solution

134 mole of KCl and .167 mole of CaCl2 were dissolved in water. What is the total number of Cl ions in the solution?

  What would be the volume of the gas

A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?

  Describe the apparent relationship between h30+ and oh-

Describe the apparent relationship between H30+ and OH- concentrations when an endpoint is reached in an acid-base titration.

  How to compute the vapor pressure of a solution

The vapor pressure of water at 45.0 degrees celcius is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation)

  Compute the partial pressure of oxygen produced

Calculate the partial pressure of oxygen produced from 1.00L of 0.600M dinitrogen pentoxide solution at 45 degrees celsius over a period of 20.0hours if the gas is collected in 10.0L container. (Assume that the products do not dissolve in chlorofo..

  Define the ternary compounds called chlorofluorocarbons

The ternary compounds called chlorofluorocarbons, or Freons, have proved to be very valuable as refrigerants and as cleaning agents for circuit boards. Unfortunately, in the atmosphere these compounds produce chlorine atoms that catalyze the decom..

  Explain how far can light travel in a nanosecond

Make sure that the final answer is expressed in the correct number of significant figures.

  What are the pka values of the various groups on the peptide

Draw the following peptides, AND indicating the amide bonds that are formed through the side chains. What are the pKa values of the various groups on the peptide?

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