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In reference to question 6-88a: a. Explain why borane (BH3) reacts readily with the pi electron system of an alkene? b. Explain why diborane (B2H6) reacts only very slowly with C double bond C groups?
CH3CH2CH2CN can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield.
If you have .200 mL of methyl salicyate (density=1.184 g/mL)(molar mass=152.15 g/mol) how many moles do you have?
A reaction has a rate constant of 1.27×10?4 /s at 28 degrees C and 0.226 /s at 78 degrees C. Determine Activation Barrier. What is the value of the rate constant at 16 degrees C?
Which do you think would be larger and why? The first ionization energy, IE1, of Ne,The second ionization energy, IE2, of Na
The CO 2 produced in one round of the citric acid cycle does not originate in the acetyl carbons that enter that round. Create a diagram of the TCA cycle to illustrate the answers to questions 1a and 1b.
Account for the fact that H3C-Cl (dipole moment 1.94D) and H3C-F (dipole moment 1.82D) have almost identical dipole moments, even though fluorine is considerably more electronegative than chlorine.
the total elute from the column was diluted to 250 mL and a 50 mL aliquot was titrated with 11.35 mL of 0.10359 M sodium hydroxide. Calculate the percentage of ammonium ion in the sample.
How many grams of antifreeze (C_2 H_4(OH)_2) would be required per 500 g of water to prevent the water from freezing at a temperature of -27 degrees celsius? answer in units of g.
What mass of CCl2F2 substance must evaporate in order to freeze 200 of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
A diamond weighs 5.35 ounces. How much is it worth if the going price of diamonds is 627 dollars per carat? 1 carat is equal to 200 milligrams
The solvent for an organic reaction is prepared by mixing 60.0 mL of acetone with 45.0 mL of ethyl acetate. This mixture is stored at 25.0C. The vapor pressure and the densities for the two pure components at 25.0C. What is the vapor pressure of t..
The mass spectrum of an organic compound shows the relative abundances of M to be 83.79% and M 1 to be 13.59%. Assuming the peaks are caused by 12C and 13C isotopes,
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