A 0.517 g sample of impure oxalic acid is dissolved in water and an acid-base indicator added. The sample requires 17.24 mL of 0.243 M NaOH to reach the equivalence point. Calculate the mass and mass percent of oxalic acid in the sample?​

What is the ph of a solution with a concentration of 5.2 × 10–8 m h3o+?

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.