Organic Chemistry Answers

Cumene is a compound containing only carbon and hydrogen that is used in the production of acetone and phenol in the chemical industry. Combustion of 47.6mg(47.6×10^-3g) produces some CO2 and 42.8mg(42.8×10^-3g)water. The molar mass of cumene is between 115 and 125 g/mol. Determine the empirical and molecular formulas of the compound

1. Provide structures for the following compounds (8) (a). 3, 7-dimethyl-5-nitro-2-octanol (b). Cis-1, 4-cyclohexanediol (c). Anisole (methyl phenyl ether) (d). 4-tert-butoxy-1-cyclohexene

QUESTION 1: [ALKANES; CYCLOALKANES]

(a). Consider the molecule 2-ethyl-3-cyclopropylheptane. Sighting along the C4—C5 bond, answer the following questions. (i). Draw the Newman projection of a gauche conformation; (2) (ii). Draw the Newman projection of an anti-conformation. (2)


(b). Consider the molecule 1,4-dimethylcyclohexane. Answer the following questions. (i). Draw a chair conformation for the cis- and trans-isomers of 1,4-dimethylcyclohexane. (4) (ii). Name another conformation that the cyclohexane ring can adopt and use either the cis- or trans-isomer drawn in (i) above to represent this structure

Among alkyl halides, order of reactivity of SN2 reaction is
CH3X > p-RX > Sec-RX > tert-RX
Discuss the factors which are mainly responsible for this order.

Liquid hexane
will react with gaseous oxygen
to produce gaseous carbon dioxide
and gaseous water
. Suppose 13.8 g of hexane is mixed with 74. g of oxygen. Calculate the minimum mass of hexane that could be left over by the chemical reaction. Round your answer to
significant digits.

what is the lewis dot structure for N2?

The largest known cycloalkane with a single ring has 288 carbons. What is its molecular formula?

(b) Write the structures of the following compounds:
(i) Methyl 3-methylbutanoate
(ii) 4-Hydroxy-4-methyl-2-pentanone

spell out the full name of the compound: H3c-CH2-CH3

Guanidine is strong base why