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have available .1 (N) NaOH and .1 solutions N solutions of H2SO4, acetic acid (pk=4.76), lactic acid (pK=3.86), and phosphate (pK=7.2) and ammonium chloride (pK=p.25).
a) Assuming the various solutions are used without dilution with water,how would you prepare 50ml of a buffered medium to keep pH essentially constant at 5.40 in an enzyme experimement in which acid will be produced?
b) If .1 milliequvalent of acid id produced in 50ml reaction mixture by the enzymatic reaction, what will be the final pH of the solution?
a chemical reaction produces 0.884mol of H2S gas. what volume will that gas occupy at STP?
Why does dropwise addition of acetophenone to a grignard reagent warrant precautions in lab?
How to write half reactions what would occur if you made an electrolytic cell of the molten salts: NaCl,
What would be the product if dimethyl maleate (cis-MeCCH=CHCO2Me) was heated in the presence of 3-sulfolene?
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.066 moles of sulfuric acid is mixed with water to make 192 mililiter of solution, what is the molarity of H+?
Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction:
Suppose the radius of an atom in a simple cubic unit cell is 0.27 nm. What is the edge length of the unit cell in nm.
A sugar syrup solution contains 15.0% by mass of sucrose C12H22O11. The syrup has a density of 1.06 g/ml
How many grams of glucose are in 100. rm mL of the final solution?
Chromium crystallizes in a body-centered cubic lattice (the Cr atoms are at the lattice points only). If the density of the metal is 7.19 g/cm3, what is the unit cell edge length in pm?
Under what conditions of pressure and temperature do real gases most closely approximate ideal-gas behavior?
The heat of fusion of ice(the heat associated with ice melting) is 6.0 kJ/mol. Find the temperature of the coffee after the ice melts.
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