As we replace bonding pairs with nonbonding pairs the molecular geometry changes to seesaw (four bonding and one nonbonding), T-shaped (three bonding and two nonbonding) and linear (two bonding and three nonbonding).
There are 12 bottles in a standard case of wine. Each of those bottles normally contains 750 milliliters of wine, giving the case a total of 9 liters. If a case contains anything other than 12 bottles, the wine manufacturer or seller usually notes the change for consumers.
Servings per bottle? One case of 12 (4/5 quart or 750 ml.) bottles of champagne will yield about 100 glasses or will provide 4 to 5 servings for 20 to 25 guests. Count on 5 cases per 100 guests. Same rule applies to punch and you would need 30 2 liter bottles or equivalent (15 gallons) for 100 people.