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Calculate the van't Hoff factor of a weak electrolyte solution of 0.050 molality HCHO2, which begins to freeze at -0.0986 C.
For the reaction above, how much would be liberated by the combustion of 5.00g of iron metal in excess oxygen.
what will the final mixture contain if 14.0 g of n2 and 35.5 g of cl2 react to completion and the balanced equation is
Zinc sulfide, ZnS, is sparingly soluble under most situations. With ammonia, Zn2+, forms four complexes, Zn(NH3)2+, Zn(NH3)2+2, Zn(NH3)2+3, and Zn(NH3)2+4. Ammonia is, of course, a base, and S2- is the anion of the weak diprotic acid, H2S. Find th..
This cAMP activates an enzyme phosphorylase that splitsglycogen, releasing glucose that is rapidly metabolized, replenishing the ATP supply.Devise a model of this control loop and determine conditions under which theproduction of ATP is oscillator..
When 18.5 mL of propanoic acid and 19.0 mL of n-propanol are mixed together, calculate the volume of water expected if the yield of the ester were 100%
the rate constant for a certain reaction is 8.60times10-3 . if the initial reactant concentration was 0.850 what will
in a reaction between pure acetic acid and sodium bicarbonate 26.6 grams of sodium bicarbonate was added to 12.0 ml of
If a Boron-10 nucleus absorbs a proton, the radioactive nuclide that is produced may undergo alpha decay. What nuclide is produced in the decay process? Write the balanced radiochemical equations for both processes.
If a pure R isomer has a specific rotation of -120.0 degrees, and a sample contains 81.0% of the R isomer and 19% of its enantiomer, what is the observed specific rotation of the mixture
Ethylene glycol,C2H4(OH)2, is a colorless liquid used as automobile antifreeze. If the density at 20 degree Celcius of a 4.028m solution of ethylene glycol in water is 1.0241g/mL, What is the molarity of the solution
Acetic Acid has a Ka of 1.8 X 10^-5 What is the pH of a buffer solution containing 0.17 M hC2H3O2 (acetic acid) and 0.18 M C2H3O2- Express answer using two decimal places.
If 545 mL of oxygen gas is collected at 21ºC and 754 mm Hg, what is its volume at STP?
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