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You are asked to prepare a standard solution of 10.0 mM of valine at pH 5.35 for a biochemistry experiment. The pI of valine is 5.96. What percentage of the valine in the solution is present as the anion?
A solution is prepared by mixing 52.0 g glucose (C6H12O6) with 510.0 g water. What is the vapor pressure of this solution at 25°C
Calculate the pH at the midpoint and at the equivalence point for a titration of 25mL of 0.100M potassium hydrogen phthalate with 0.100M KOH.
What is the difference between the molecular geometry
understanding of chemistry basics.1. the relative concentrations of reactant and product found when a reaction reaches
After the addition of a large excess of acid (in comparison with the acid volume needed to reach the equivalence point) D) tell how many millileters of acid are required to reach the equivalence point
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
The pressure of the He at 25 degrees celsius is 145 mmHg. The bulb is then heated to 325 degrees celsius and all the (NH4)2 S decomposes to form NH3 and H2S, with a resulting total gas pressure of 875 mmHG. What is the partial pressure of the NH3 ..
Calculate the cell potential for the following reaction as written at 61 °C, given that [Cr2 ] = 0.826 M and [Ni2 ] = 0.0200 M. Cr(s) + Ni ^2+ (aq) --> Cr^2+ (aq) + Ni(s)
Methane is burned in a Laboratory Bunsen burner to give CO2 and water vapor. Methane gas is supplied to the burner at the rate of 5.0 L/ min ( at temperature of 28° C and a pressure of 773 mm Hg)
at 800 ordmc keq 0.0100 for the following reaction2so2g o2g 2so3gwhat is the numerical value for the equilibrium
Calculate the mass/mass percent concentration for each of the following solutions. 1.) 1.05g NaCl in 95.0g of solution 2.) 2.00g K2Cr2O7 in 103.0g of solution 3.) 50.0g C6H12O6 in 125.0g of solution
Please consider the reaction of 0.22M 2-iodopropane with tetramethylammonium fluoride (TMAF) in DMSO to give propylene. The reaction rate in the presence of 0.1M TMAF is 0.002 M/s, but it is 0.0058 M/s in the presence of 1.2M TMAF.
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