Engineering, 04.12.2019 02:31, bambamshortymacc
An optically active compound a (assume that it is dextrorotatory) has the molecular formula c7h11br. a reacts with hydrogen bromide, in the absence of peroxides, to yield isomeric products, b and c, with the molecular formula c7h12br2. compound b is optically active; c is not. treating b with 1 mole of potassium tert-butoxide yields (+)-a. treating c with 1 mole of potassium tert-butoxide yields (±)-a. treating a with potassium tert-butoxide yields d (c7h10). subjecting 1 mole of d to ozonolysis followed by treatment with dimethyl sulfide yields two moles of formaldehyde and 1 mole of 1,3-cyclopentanedione (depicted). propose stereochemical formulas for a – d, and outline a reaction flow chart.
Answers: 3
Engineering, 04.07.2019 18:10, Candi9697
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:20, annette211pdd8v9
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
An optically active compound a (assume that it is dextrorotatory) has the molecular formula c7h11br....
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