Question

QUESTION 4 The standardization of sodium hydroxide involves the reaction between sodium hydroxide and the compound named potassium hydrogen phthal, commonly abbreviated KHP with a chemical formula of KHC8H404 Its molar mass is g/mol When you write the formula, do not worry about putting the numbers in subscript form. For example, CHA would be CH4. Also, speling counts in the name QUESTION 5 and will change color from The indicator used in today's experiment is called the solution becomes basic Spelling counts. when

Answer 1

[all the reactants and products of this neutralization reaction are colorless, a few drops of an indicator (phenolphthalein) were added to each KHP sample to be titrated. Phenolphthalein is colorless in acidic solution, but turns red in basic solution.]

Date Page: - (8 HS KO4 = KHCO HA 04 motor mass of kuP = C8H5 Koy = 2x0 x 5X1 + 39 + 16X4 = 96 +5+39 + 64 = 204 g/mol Correct mass in decimal = 204.22g/mol you verform Noon +kHP tirection then to/ Pink PHENOLPHTHALEIN Colorless When the solution become Basics D PhenoLPHTHALEIN (2) Colorless (3) Pink Thank you very much Good CIL

[ Originally phenolphthalein is colourless. It turns pink in basic solutions and remains colurless in acidic solution] THANKS