You have at your lab bench the following chemicals: nah2po4 (s), na2hpo4 (s), na3po4 (s), nh4cl(s), nach3coo(s), 1.0 m ch3cooh(l), 1.00 m nh3, 1.00 m naoh, 1.00 m hcl, and deionized water. you also have standard glassware available. describe how you would make 500 ml of buffer with a ph of 5.00 using only pure materials and deionized water so that the total concentration of the conjugate acid/base pair is 0.200 m

The answer for this question is d. none of these

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

The correct answer is weight.