A citys water supply is fluoridated by adding naf the
A city's water supply is fluoridated by adding NaF. The desired concentration of F- is 1.6 ppm. How many milligrams of NaF should be added per gallon treated water if the water is already 0.2 ppm F- (1 gallon = 3.78 Liters)
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The density of water vapor at 327.6atm and 776.4K is 133.2gm/dm^3. determine the molar volume Vm of water and the compression factor Z from these data
What mass of real van der waal behaving form of N2 gas is present in a 50l container at 400K under 20 atm of N2 pressure where a=1.37 litre^2 bar mole^-2 and b=0.0387 litre/mole
Are these signals periodic, find their fundamental period T and their fundamental frequency, otherwise prove that they are non-periodic x(t)= 4 cos(12 t+400) + sin(16 t) x(t)=cos4t +3e-j12t x(t)= ej(10t+p/3) x(t)= ejt +ej3t +sin(6t)
In a MOS cascode amplifier, the cascode transistor is required to raise the output resistance by a factor of 40. If the transistor is operated at Vov = 0.2 V, what must its Va be. If the process technology specifies V'a as 5 V/um, what channel len
In addition, the distance between the components of the exciton is always such that there are intervening semiconductor atoms. Thus e in the Bohr formulation must also be replaced by Ks e0, where Ksis the semiconductor dielectric constant.
A heat pump uses an ideal Carnot cycle to heat a house. The outside air has a temperature of 294 K, In the scenario described in the previous question, how much energy is transferred out of the outside air
A 10mL aliquot of this solution, diluted to 25mL, yielded a signal of .235 units. A second 10 mL aliquot was spiked with 10mL of 1ppm standard solution of the analyze and diluted to 25mL. The signal for the spiked sample was .502 units. What is th
The selling and administrative expense budget of Fenley Corporation is based on the number of units sold, which are budgeted to be 2,500 units in January.
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Discuss the overview of the health problem identified, an in-depth review of the associated anatomy and physiology, an overview of treatment methodologies
Mrs. Nasser arrived at the urgent-care center with her 16-year-old daughter, who had been experiencing burning upon urination, itching around her genital area
Critical Analysis Document on Climate Change. For this assignment, you will write a 2000-word research using proper APA format and in argumentative mode.
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This discussion post aims to explore the concepts of hunger and food insecurity, and to analyze nutrition assistance programs that address food insecurity