Aspirin (acetylsalicylic acid, c9h8o4) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2. 00 g of aspirin in 0. 600 l of water and measured the ph. What was the ka value calculated by the student if the ph of the solution was 2. 62?.

Which the following is a common trait in a four year college

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.

How. many question are on the aspire science test