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A segment of a DNA strand has base sequence of C-G-A-T-T-G-C-A. What is the base sequence of the other complementary strand of the double helix?
the heat of combustion of gaseous butane is -2658 kjmol and the heat of combustion of liquid butane is -2635 kj mol
A solution of methylamine CH3NH2 has a pH of 10.64. How many grams of methylamine are there in 100.0 ml of solution
The bond energy of NO is 632 kl/mol and that of each N-O bond in N02 is 469kj/mol. Using lewis structures and and the average bond energies explain the difference between the two molecules and the fact that the bond energies of the two bonds in NO..
Nitrogen dioxide and water react to produce nitric acid HNO3, and nitrogen oxide: 3NO2(g) + H2O(l) -------- 2HNO3(aq) + NO(g)
Write the balanced net ionic equation for the reaction between KMnO4 and Na2S2O3 in neutral
A certain indicator HA has a ka value of 1.6x10-7. The protonated form of the indicator is blue as well as the ionized form is red. 1) Explain what is the pka of the idicator
In column chromatography portion of the Friedel-Crafts acylation of ferrocene, why is ferrocene yellow, acetylferrocene orange-red, and diacetylferrocene dark. What accounts for the color differences.
how many moles of liquid unknown will be present in a 2 m solution? Also, assuming that the molar mass of the liquid unknown is about 50g/mol, calculate the approximate mass of liquid unknown that should be added to your water-ice mixture.
Compute the pH after the addition of 0.0mL, 5.00mL, 18.0mL, 25.0mL, 38.0mL, 50.0mL and 65.0mL of 0.200 M NaOH (aq) to 50.00mL of 0.100 M malic acid, L-hydroxybutanedioic acid. pka1=3.459, pka2=5.097
State a balanced chemical equation, with integer coefficients, for the reaction that can take place when aluminum metal is added to a solution of tin(II) ions.
a reaction mixture initially contains 0.56 atm co2 and 0.32 atm co. determine the equilibrium pressure of each gas if
How do you find the HETP of a fractionating column given the areas after a gas chromatogram were cyclohexane 6286 and toluene 346. with a ratio being of cyclohexane/toluene.
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