Hydration of 1-Hexene - Lab Flow
According to Markovnikov's rule of the electrophilic addition to an alkene, the electrophile, usually a proton, is more likely to add to the ___ in a double bond. This arrangement places the intermediate carbocation on the ___, which stabilizes it with the presence of ___. In the major product of a reaction following Markovnikov's rule, the ___ will then end up on the more-substituted carbon in a double bond.
According to Markovnikov's rule of the electrophilic addition to an alkene, the electrophile, usually a proton, is more likely to add to the less-substituted carbon in a double bond. This arrangement places the intermediate carbocation on the more-substituted carbon, which stabilizes it with the presence of more substituents. In the major product of a reaction following Markovnikov's rule, the nucleophile will then end up on the more-substituted carbon in a double bond. less-substituted carbon more-substituted carbon more substituents nucleophile
Complete each statement on safety precautions when using round bottom flasks. Before using the flask, inspect it for ___. Use ___ for stability when suspending the flask on a ring stand. Never heat a flask that is ___.
Before using the flask, inspect it for cracks or imperfections. Use a clamp for stability when suspending the flask on a ring stand. Never heat a flask that is closed. cracks or imperfections a clamp closed
Identify items that can be used to control the boiling when heating liquid in a round bottom flask. Select one or more: A stir bar and stir plate Boiling chips or stones A Bunsen burner A rubber stopper or cork
Boiling chips or stones A stir bar and stir plate
In order to heat a round bottom flask in a heating mantle, plug the heating mantle into ___. Turn the heat up ___, and do not exceed ___ of the maximum output of the device.
In order to heat a round bottom flask in a heating mantle, plug the heating mantle into a Variac or Powermite. Turn the heat up gradually, and do not exceed 50-60% of the maximum output of the device. a Variac or Powermite gradually 50-60%
In general, what are the possible products of an acid-catalyzed hydration of an alkene? Select one or more: Carboxylic acid Primary alcohol Secondary alcohol Ketone Tertiary alcohol
Primary alcohol Secondary alcohol Tertiary alcohol
What is meant by the term bumping? Select one: Sudden and uncontrolled boiling of liquid One liquid coming in contact with another Agitating a liquid with a stir bar or stirring rod Suddenly increasing the temperature on a liquid
Sudden and uncontrolled boiling of liquid
What is the best technique for removing a round bottom flask from an oil bath? Select one: Turn off the oil bath and allow it to cool completely. Remove the flask from the clamp and lift out of the oil bath. Use a paper towel to remove excess oil. Dump the oil bath into the chemical waste bin. Allow the flask to remain clamped until it is at room temperature, and wipe up any residual oil from the flask using a paper towel. Wearing heat-resistant gloves, remove the flask from the clamp and lift out of the oil bath. Place the flask on the lab bench, and promptly wipe off any oil from your gloves and the flask. Wearing heat-resistant gloves, raise the clamp to lift the flask out of the oil bath. Allow the flask to cool for a while, then use a paper towel to wipe any oil from the bottom of the flask.
Wearing heat-resistant gloves, raise the clamp to lift the flask out of the oil bath. Allow the flask to cool for a while, then use a paper towel to wipe any oil from the bottom of the flask.