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Use the pKa values to predict which functional groups in the amino acids aspartic acid and phenylalanine are expected to be protonated int he presence of acetic acid. Draw the structures expected for these amino acids showing correct location of any charges.
starch and buffer and the total volume was made up to 500 ml with distilled water. The solution turned blue 9 indicating the presence of I2) in 1.8 minutes. Calculate the initial rate of disappearance of H2O2 in units of M min^-1 to two significan..
a compound containing carbon amp hydrogen atoms has a deep blue color. complete combustion of 288 mg of the compound
What do you think is the basis for the selective response of a solar cell to certain wavelengths. Energy levels
Wisconsin, with an average power of approximately 8.00 kJ·s-1·m-2. If the sunlight consists of photons with an average wavelength of 510.0 nm, how many photons strike a 3.30 cm2 area per second?
question pure benzene freezes at 5.50 degrees celsius. when 10.06 g c10h8naphthalene mm 128.16 gmol is added to 100.0
In a flame test experiment, sodium gives the brightest and most persistent color in the flame. Do you think that potassium could be detected visually in the presence of sodium
The equilibrium constant Kc for the formation of ammonia: N2(g) + 3H2(g) -> 2NH3(g), is 3.6 x 10^8 at 25 C. What is the concentration of ammonia, when the equilibrium concentrations [N2] = 5.4 x 10^-3 M, and [H2] = 2.1 x 10^-3
If 30 ml of 0.150M cacl is added to 40ml of 0.1 M AgNo3. What is the mass of AgCl preciptate
Calculate the density of N2 at STP, (a) using the ideal-gas law and (b) using the molar volume and molar mass of N2.
how many grams of CaCl 2 would be required to produce a 3.5 M(molar) solution with a volume of 2.0 L?
What type of reaction is occurring in each step. some categories include: Bronsted-lowry acid-base, precipitation or redox.
a solution is prepared by mixing 0.0400 mol ch2cl2 and 0.0800 mol of ch2br2 at 25degc. assuming the solution is ideal
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