Which instrumental technique would allow a chemist to detect the presence of a particular functional group on an organic molecule?

Ibuprofen and aspirin are two common pain relieving medications.

What functional group do they have in common?

Name the following organic compound

A compound has the following skeletal formula.

What is the molecular formula of the compound shown?

For the endothermic reaction:

What will happen to the position of equilibrium if the temperature is decreased?

Consider the reaction:

According to the concentration-time graph above, what event took place at time that led to the change in equilibrium concentrations shown?

Ethanol, , can be produced by the reaction of ethylene, , and water, . When this reaction occurs in a sealed container of fixed volume, an equilibrium system is established. The equation for the reaction is:

If the pressure and volume remain constant, when the temperature is increased, the forward reaction rate will:

The chemical equation and concentration-time graph for the reaction are shown below.

According to the concentration-time graph above, which change may have occurred at ?