A0.7834 g sample of a primary standard khp was titrated with 38.45 ml of naoh solution to a phenolphthalein end-point. what is the molarity of the naoh solution?

0.0998 M

Explanation:

KHP is a weak monoprotic acid. This means that the moles of acid are equal to the moles of OH⁻ that were added in the titration.

KHP Molecular weight = 204.22 g/mol

So  3.836x10⁻³ moles of OH⁻ were added in the titration. With moles and volume we can calculate the molarity of the NaOH solution:

38.45 mL ⇒ 38.45/1000 = 0.03845 L

*tilts head* sounds more like a statement

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.