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In words, give step-by-step directions for drawing the mechanism for the reaction of 1,3-butadiene with HBr.Give explicit information about where "electron-pushing" arrows should begin and end, what new bonds are formed or broken, what atoms have non-zero formal charges, etc. Describe all three steps of the reaction: (a) protonation of carbon 1 (b) the formation of an allylic, resonance-stabilized carbocation intermediate - explain what this is and which carbons have partial positive charge, and (c) attack of Br- to give the 1,2 and 1,4 product.
Combine the above two equations with that for the formation of liquid water and use addition and/or subtraction(i.e. Hess's Law) to arrive at the equation for the formation of magnesium oxide.
Calculating concentration of an ion, Given the concentration of hydroxide ions, use the ion product constant of water to calculate the concentration of the other ion at 298 K
Using 1-Propanol as your only source of carbon, propose a synthetic route for 2-methyl-1,3-pentanediol.
a mixture contains two compounds x and y. both compounds x y have a solubility 1 g100 ml of solvent at the temperature
the fact that the relative reactivity of C-H bonds of an alkane for free-radical chain halogenation is tertiary > secondary > primary?
An electrochemical cell is constructed by coupling a Cu(II)/Cuhalf-cell with an Ag(I)/Ag half cell. The concentration of Cu(II)and Ag(I) are both 0.010 M. The observed potential
This solution was back-titrated with a 0.0460 M Ga3+ solution until all the EDTA reacted, requiring 11.0 mL of the Ga3+ solution. What was the original concentration of the V3+ solution
What weight of sodium acetate, NaCO2CH3, must be added to 500.0 mL of 0.500 M acetic acid HCO2CH3 to produce a buffer solution
A mixture of helium and neon gases at 237 K contains three times the number of helium atoms as neon atoms. The concentration (n/V) of the mixture is found to be 0.150 mol/L. Assuming ideal behavior, what is the partial pressure of helium
how many grams of ethylene glycol should you add to each liter of water? First convert the temperature to degrees Celsius, use the Kf vaule of 1.853 degrees C/molal for water, and recall that the density of water is 1.00 g/mL.
Hydrogen gas can be prepared by reaction of zinc metal with aqueous HCl. how many liters of H2 would be formed at 770 mm Hg and 16 degrees celcius if 26.5g of zinc was allowed to react
A 4.50G sample of LiCl at 25.0 degree celcius dissolves in 25.0 mL of water also at 25.0 degree celcius. The final equilibrium temperature of the resulting solution is 60.8 degree celcius. What is the enthalpy of solution of LiCl expressed in kilo..
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