Organic Chemistry Answers

A quality-control technician is testing the concentration of muriatic acid (hydrochloric acid) to check that the concentration is within certain limits. Calculate the concentration of the hydrochloric acid if a 15.0-mL sample is titrated with standard sodium carbonate solution. The titration required 10.00 mL of 0.350 mol/L sodium carbonate to neutralize the acid.

Using electronegativity values, determine bond polarities and the net dipoles in a molecule of PCl3 and indicate if the molecule will be polar.

Using electronegativity values, determine bond polarities and the net dipoles in a molecule of HCN and indicate if the molecule will be polar.

Use the VSEPR theory to predict the shape of methane (CH4). Then indicate whether the bonds are polar. Will the molecule be polar?

Using VSEPR Theory, name and sketch the molecular shape of each of the molecules listed:
a) C2Br4(s)
b) HgCl2(s)
c) SnCl4(aq)

What is the difference between a straight-chain and a branched alkane?

Explain the bonding and shape of ethyne, C2H2(g), using the hybridization theory.

Draw the Lewis Structure of a sulfur dioxide molecule and use the VSEPR theory to predict its shape and bond angle.

1. Name three types of biological polymers, and give an example of each.

2. Name the monomer unit for each type of polymer you listed for the previous question.

Write structural formulas of isomers with the same molecular formula of C4H10O: for
a. One primary alcohol
b. One secondary alcohol
c. One tertiary alcohol