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.
Take the number that represents the wine servings needed for the event and divide it by five, which is the average number of servings from a 750 ml wine bottle. Using the example from the last step; 75 drinks divided by 5 servings per bottle would equal 15 bottles needed. Always round up when estimating the number of bottles needed.