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If a solution of HIn is adjusted to pH 6.23 contains a mixture of HIn and In- with a total concentration of 1.84x10-4M. The absorbance at 440nm is 0.868. Compute pKa
the reaction of 0.779 g k with oltsubgt2ltsubgt forms 1.417 g potassium superoxide a substance used in self-contained
The intiala rates at various substrate concentrations for an enzyme-catalyzed reaction are as follows.
a what temperature change would you expect in which 50.0 ml of 2.0m hcl is combined with 80.0 ml of 2.0 m naoh in
waters heat of fusion is 80. and its specific heat is 1.0 . some velomobile seats have been designed to hold ice packs
Solid potassium nitrate is decomposed by heating to give potassium nitrite and oxygen gas. If 1.00g of potassium nitrate is heated, what is the milliliter volume of oxygen gas at STP
1500 g of frozen water at 0 degrees celsius and the temperature of the water at the end was 32 degrees celcius. how many calories of heat energy were absorbed.
what is the maximum number of electrons that can have a principal quantum number of 3 within one
A chemist dissolves 0.092g of CuSO4 • 5 H2O in water also dilutes the solution to the mark in a 500-mL volumetric flask. A 5.5-mL sample of the solution is then transferred to a second 500-mL volumetric flask and diluted. Define what is the molari..
Explain why is the reaction of alkenes with HCl (a rapid, simple reaction) NOT valuable as a characterization reaction, but reaction with Br2 is a good characterization reaction. Explain how does a solution of hydrochloric acid differ in appearanc..
In a separate experiment, 41.6 g of ClF3 was introduced into an empty 2.00 L container at 700.0 K . What are the concentrations of ClF3, ClF, and F2 when the mixture reaches equilibrium
Explain a resting nerve cell membrane, sodium-potassium pump, action potential and what wil happen if sodium channels were blocked
Suppose you want to cook pasta in boiling, salty water. What is effect of salt (NaCl) addition to water on the boiling point temperature of the resulting solution?
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