6. In a laboratory, you make a base by adding 12.5 grams of NaOH to prepare 750 mL of solution. Then you titrate 15.0 mL of your base using a nitric acid (HNO,) that is 0.222 M.
a. Calculate the concentration (M) of the NaOH base
b. How many mL of the 0.222 M HNO, acid will be required to titrate the 15-mL of
base?

- "the acute form of diverticulitis can manifest itself with one or more severe attacks of infection and inflammation.

the inflammation of diverticulitis can eventually result in a bowel obstruction, which may cause constipation, thin stools, diarrhea, abdominal swelling or bloating, and abdominal pain."

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.