💿 “Making Alcohols by Fermentation and from Ethene”

note

This is an authentic video. Do not try to understand every word you hear.
Watch and listen for general and specific information by completing the following tasks.

Before you watch:

Exercise 1. Solve this riddle.

-H+OH

Video

While you watch:

Exercise 2. Watch the video (till 1:06) and answer the questions:

Exercise 3: Watch the video (1:07-1:30), PAUSE the video and answer the question asked by the speaker:

Fermentation converts them into ethanol and carbon dioxide. You might notice this equation isn’t balanced yet so have a go as a mini challenge. PAUSE and continue when ready.

Continue the video and check your answer (1:30)

Exercise 4. Watch the video (1:31-2:01), PAUSE the video and answer the question asked by the speaker:

Here’s the easy molecule and its molecular formula is the ethanol molecule from before. Now look at the numbers of each atom on both sides. Can you think of a very common molecule we can add to ethane to produce ethanol? Again, PAUSE and think then resume.

Continue the video and check your answer (2:01-till the end).

After you watch:

Exercise 5. Solve the problem question.

What is the mass of ethanol that will be released during fermentation of 36 grams of glucose containing 25 % impurities?