A 0.1393-g sample of an unknown monoprotic acid was dissolved in 29.0 mL of water and titrated with 0.0627 M NaOH solution. The volume of base required to bring the solution to the equivalence point was 18.2 mL. (a) Calculate the molar mass of the acid. (b) After 10.4 mL of base had been added during the titration, the pH was determined to be 5.35. What is the Ka of the unknown acid

The wilson chamber is used to study: direction, speed, and distance of radioactivity the intensity of radiation the appearance of individual atoms all of the above

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate