Test help

Hi class,
Here is some test help
Question 3-3.
The density of ethyne also known as acetylene is 0.001097 grams per mL.

Question 3-4.
The density of water is .98 mg/ml. This value is shown at the end of question 4. You do not need it for question 4.

Question 4-3
Density of CO is 1.145 grams per liter

Question 4-4 should read:
If 82.7 liters of CO were actually recovered in problem #2 calculate the percent yield.

Hope this helps you all.