Find the concentration of a sample of a diprotic acid H2X if 21.2 mL of 0.362 M NaOH is needed to titrate 25.0 mL of the acid.
??? M

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

the answer is 303.15 or 303

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

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