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Question- A typical water treatment plant focused on removing molybdenum generates purified water with a concentration of 0.03 mg Mo for every liter of water. People should strive about 1 gallon of water every day. If people require about 0.1 mg of Mo per day as an essential mineral, is the water from the treatment plant supplying the needed amount of molybdenum, less than the required amount or more?
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What mass of cesium bromide must be added to .500 L of water (d=1.00g/mL) to produce a 0.144 m solution
Arsine (AsH3) has a vapor pressure is 35 Torr at -111.95?C and 253 Torr at -83.6 ?C. What is the normal boiling point of arsine.
1.22 in 1994 the united states produced 89.20 billion pounds of sulfuric acid. the density of this sulfuric acid was
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Determine the molarity of a solution made by dissolving 24.8 g of sodium chloride in 750.0 mL of solution
What volume of 1 M NaOH would you need to add to 200 mL of 0.2 M acetic acid solution to achieve a pH of 7.0 (the pKa of acetic acid is 4.76)? A)0.23 mL B)6.952 mL C)173.8 mL D)39.77 mL
What happens to the kp in th reaction 2NOBr(g) 2NO+Br2...when temperature is increased
The reactants A and B are mixed, and the reaction is timed until a color change occurs. The data is as follows-
open system at equilibrium with normal atmospheric levels of carbon dioxide to show the approximate PH of pure rain water, assuming Pco2=10^-3.5 atm?
What is the half life of the decomposition of A at 60C? e)If the concentration of a is found to be 2.78 x 10^-3 mole/L at t= 1.80 s and 60C, what is the initial concentration of a at 60C?
A solution was prepared by dissolving 620 grams of ethylene glycol, C2H6O2 in 1000 grams of water. Find the concentation of ethylene glycol in molality. Find the freezing point and boiling point of the solution. For water Kf= -1.86 Celsius m-1 and..
raising the total pressure from P0 (the initial air pressure) to P1 (the total final pressure of H2(g) + air).Compose an algebraic expression for the volume (V2) that this sample of H2(g) would occupy if it were isolated
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