Potassium hydroxide

Question 1

Dissolve _______ mL of water. Add a freshly prepared saturated solution of barium hydroxide until no more precipitate forms. Shake the mixture thoroughly, and allow it to stand overnight in a stoppered bottle. Decant the clear liquid, or filter the solution in a tight, polyolefin bottle, and standardize by the procedure set forth for Sodium Hydroxide, Normal (1 N)

Answer 1

68 g of potassium hydroxide in about 950

Question 2

Dissolve 68 g of potassium hydroxide in about 950 mL of water. Add a freshly prepared saturated solution of _______ until no more precipitate forms. Shake the mixture thoroughly, and allow it to stand overnight in a stoppered bottle. Decant the clear liquid, or filter the solution in a tight, polyolefin bottle, and standardize by the procedure set forth for Sodium Hydroxide, Normal (1 N)

Answer 2

barium hydroxide

Question 3

Dissolve 68 g of potassium hydroxide in about 950 mL of water. Add a freshly prepared saturated solution of barium hydroxide until no more precipitate forms. Shake the mixture thoroughly, and allow it to stand overnight in a _____. Decant the clear liquid, or filter the solution in a tight, polyolefin bottle, and standardize by the procedure set forth for Sodium Hydroxide, Normal (1 N)

Answer 3

stoppered bottle

Question 4

Dissolve 68 g of potassium hydroxide in about 950 mL of water. Add a freshly prepared saturated solution of barium hydroxide until no more precipitate forms. Shake the mixture thoroughly, and allow it to stand overnight in a stoppered bottle. Decant the clear liquid, or filter the solution in a tight, ___________, and standardize by the procedure set forth for Sodium Hydroxide, Normal (1 N)

Answer 4

polyolefin bottle

Question 5

Potassium hydroxide: Type of chemical reaction

Answer 5

Neutralization reaction

Question 6

Potassium hydroxide: type of titration

Answer 6

Direct titration

Question 7

Potassium hydroxide: primary standard

Answer 7

Potassium biphthalate

Question 8

Potassium hydroxide: indicator

Answer 8

Phenolphthalein TS

Question 9

Potassium hydroxide: endpoint

Answer 9

Permanent pink color

Question 10

Difference when potassium hydroxide is standardized compared to when sodium hydroxide is standardized

Answer 10

Potassium hydroxide is first saturated by the solution of Barium hydroxide until more precipitates form. stoppered and filtered in a polyolefin bottle