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Find out the lime and soda in mg/L as CaCO3 to soften the subsequent water to a final hardness of less than 90 mg/L as CaCO3. Suppose the price of lime, purchased as CaO is $61.70 per megagram and the price of soda ash, purchased as Na2CO3 is $172.50per Mg. Define what is the annual chemical cost of treaing 0.050 m3/s of this water? Suppose the lime is 90% pure and the soda ash is 97% pure. The ion concentrations reported below are all mg/L as CaCO3
Ca = 137Mg = 60HCO3 = 197CO2 = 9
Pure benzophenone freezes at 48.1 celcius of 1.25 g of biphenyl (C12H10) molar mass= 1542 g/mol) with 25.38 g of benzophenone forze at 16.8 celcius. calculate the molarity of the solution (m) and the molal freezing point depression constant (Kf). ..
One way to measure ionization energies is ultraviolet photoelectron spectroscopy (UPS, or just PES), a technique based on the photoelectric effect. In PES, monochromatic light is directed onto a sample, causing electrons to be emitted.
Calculate the concentration of each reactant in trials 1 through 5 after the flasks contents have been combined but before the reaction takes place.
What is the percent yield in a reaction between 53.6 g O2 and 51.6 g Al if 87.3 g of Al2O3 is produced
what is the concetration of acetic acid and sodium acetate.
Baseball reporters say that long fly balls that would have carried for home runs in July "die" in the cool air of October and are caught. The idea behind this observation is that a baseball carries better when the air is less dense. Dry air is a m..
If a solution containing 30.87 g of mercury(II) chlorate is allowed to react completely with a solution containing 5.102 g of sodium sulfide,
What is the ppm of a solution prepared by mixing 25.0 g ethylene glycol (molar mass = 62.1 g/mol; C2H6O2) with 125 g of water(molar mass = 18.012 g/mol; H2O)
Use the following balanced chemical equation to answer the following questions: 3 BaCl2 + 2 Na3PO4 Ba3(PO4)2 + 6 NaCl a. How many moles of Ba3(PO4)2 can be produced from 10.0 grams of sodium phosphate
The addition of bromine to ethene in the presence of high concentration of chloride ion in an inert solvent results in the formation of 1,2-dibromoethane and 1-bromo-2-chloroethane. No 1,2-dichloroethane is obtained
for each trial enter the amount of heat gained by the chemical system of ammonium nitrate qrxn. the specific heat of
Proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0800 atm, 0.00500 atm, and 0.00200 atm respectively.
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