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a. Explain what is the pH of 1 liter of a 200mM MES aqueous solution? Require to solve a quadratic equation.
b. Explain how much solid NaOH in grams wants to be added to the MES solution to make a buffer at pH 6.5?
MES (2-(N-Morpholino)ethanesulfonic acid) is a common buffer utilized in biochemistry labs to stabilize proteins. The pKa for MES is 6.09.
Depict what kind of redox reaction each reaction below is. Identify the oxidizing and reducing agents.
Calculate the concentration of the chloride ion if you dilute 25 m of 0.20 M barium chloride to 100 ml with water
State the equation for the reaction associated with the Ka2 of sulfuric acid, H2SO4.
A concentration of the pollutant NO2 in air of 3.00 ppm (m/v) may be lethal to humans. Will air that contains 1.9 x 10^-3g at NO2 per liter be lethal to humans?
What is the complementary sequence to the DNA strand 5' CGATGAGCC 3'? Enter the sequence in the 3' to 5' direction.
in industry sodium carbonate is produced in two stages whose equations are as followsnacl nh3 h2o co2 agrave nh4cl
What is the percentage Of Ag ion remaining in solution when 25.0 ml of 0115 M AgNo3 are added to 37.0 ml of 0.108 M K2CrO4? The precipitate, if it forms is Ag2CrO4, with a ksp= 2.0e-12. And how many grams of silver chromate precipitates, if it for..
A sample of nitrogen gas at 298 k And 745 torr has a volume of 37.42 L. what volume will it occupy if the pressure is increaaed to 119kpA at 345 K
how many CH 3 groups are there, per 1000 C atoms (main chain)? ethylene-propylene rubber (EPR) is completely amorphous you may ignore the ends of the chains
nickel is to be deposited on a platinum cathode area120cm2 from a solution that is 0.200m in ni2 and buffered to a ph
Determine the percentage concentration by volume if a 600 ml bottle of vinegar contains 30.0 ml of acetic acid.
you take 20.0 g of a sucrrose c12h22o11 and nacl mixture and dissolve it in 1.0 l of water. the freezing point of this
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