Final answer:
A Fischer projection is a two-dimensional representation of a molecule that shows the configuration of chiral centers. To describe a Fischer projection with the hydroxyl group located to the left of the aldehyde functional group, you would draw the vertical line for the parent carbon chain, place the aldehyde functional group at the top, and position the hydroxyl group to the left of the aldehyde group.
Step-by-step explanation:
A Fischer projection is a two-dimensional representation of a molecule that shows the configuration of chiral centers. In a Fischer projection, the chiral center is in the plane of the page, with horizontal lines representing bonds projecting towards the viewer and vertical lines representing bonds projecting away from the viewer.
To describe a Fischer projection with the hydroxyl group located to the left of the aldehyde functional group, you would draw the vertical line for the parent carbon chain, place the aldehyde functional group at the top, and position the hydroxyl group to the left of the aldehyde group. This configuration would be designated as the L isomer.