The pka values of a compound with two ionizable groups are pk1 = 4. 10 and pk2 between 7 and 10. A biochemist has 10 ml of a 1. 0 m solution of this compound at a ph of 8. 0. She adds 10. 0 ml of 1. 00 m hcl, which changes the ph to 3. 20. What is pk2?.

Arealtor is studying the graph above, which shows the expected value of properties in her area over the next 24 years. if t represents the number of years after 2014, in what year should the increase in property values start to slow down? a. 2008 b. 2018 c. 2022 d. 2030

When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me

When do you think it’s best to take the psat (what grade year / when in the year)?