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According to the following reaction, what amount of Al2S3 remains when 20.00 g of Al2S3 and 2.00 g of H2O are reacted? A few of the molar masses are as follows: Al2S3 = 150.17 g/mol, H2O = 18.02 g/mol.
Al2S3(s) + 6 H2O(l) ? 2 Al(OH)3(s) + 3 H2S(g)
a)14.00 gb)8.33 gc)19.78 gd)17.22 ge)28.33 g
the cytoplasmic concentration is 0.4 micromolar, and the extracellular concentration is 1.5 micromolar, and the membrane potential is -60 mV?
The U.S. Environmental Protection Agency set a maximum contaminant level (MCL) for tetrachloroethylene (TCE, C2Cl4) in drinking water of 0.005 ppm (by mass).
Draw lewis Dot structures. Use model kits, styrofoam balls and/or gum drops to make a model of the molecule or ion. Be sure to place electron groups (toothpicks or sticks) as far apart as possible.
what will the pH be after mixing the 100 ml of HCl solution and the solid NaOH together? Assume the addition of NaOH does not change the volume. (Molar Mass NaOH= 40.00 g/mole : Molar Mass HCl = 36.46 g/mole
When you analyze the proteins by electrophoresis, you find that protein B moves further towards the positive end of the gel. Explain if this result is consistent with your hypothesis about the difference between the two proteins.
sodium phosphate is mixed with 400.0ml of 0.255M barium chloride. What is the mass of the solid produced?
How much of 2,4 hexadien-1-ol would you need to react with 98 mg of maleic anhydride in a Diels-Alder Reaction? (Assume a 1:1 molar ratio of maleic anhydride to 2,4 hexadien-1-ol)
If the temperature of the water in your reaction bowl is 23 C, what is the temperature of the hydrogen gas.
Nickel metal in 0.1M nickel nitrate solution Copper metal in 0.1M copper nitrate solution The solutions are joined by a simple salt bridge. The nickel corrodes and the copper plates on during operation of the cell. Answer the following question: W..
What % of the bromide ions remain in solution, i.e., unprecipitated, just before silver chloride begins to precipitate? Ksp for AgCl=1.8x10^-10, Ksp for AgBr=3.3x10^-13
A circular storage tank in the san Ardo california oil field water treatment facility is 50 yards in diameter. Estimate how many barrels of fluid this tank could hold
The initial concentration of a reactant in the first order is .28M. The rate constant for the reaction is.75s^-1. What is the concentration of the reactant after 1.85s?
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