Sodium Hydroxide Flashcards

1
Q

Dissolve ______ of Sodium hydroxide in 150 ml of carbon dioxide-free water, cool the solution to room temperature, and filter through hardened filter paper. Transfer 54.5 mL of the clear filtrate to a tight, polyolefin container, and dilute with carbon dioxide-free water to 1000 mL.

A

162 g

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2
Q

Dissolve 162 g of Sodium hydroxide in ______ of carbon dioxide-free water, cool the solution to room temperature, and filter through hardened filter paper. Transfer 54.5 mL of the clear filtrate to a tight, polyolefin container, and dilute with carbon dioxide-free water to 1000 mL.

A

150 mL

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3
Q

Dissolve 162 g of Sodium hydroxide in 150 ml of carbon dioxide-free water, cool the solution to room temperature, and filter through hardened filter paper. Transfer _____ of the clear filtrate to a tight, polyolefin container, and dilute with carbon dioxide-free water to 1000 mL.

A

54.5 mL

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4
Q

Dissolve 162 g of Sodium hydroxide in 150 ml of carbon dioxide-free water, cool the solution to room temperature, and filter through hardened filter paper. Transfer 54.5 mL of the clear filtrate to a tight, _________, and dilute with carbon dioxide-free water to 1000 mL.

A

polyolefin container

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5
Q

Sodium hydroxide: accurately weight about ____________, previously crushed lightly and dried at 120 degrees for 2 hours, and dissolve in 75 mL of carbon-free water. Add 2 drops of phenolphthalein TS, and titrate the sodium hydroxide solution to the production of a permanent pink color. Each 204.23 mg of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

5 g of potassium biphthalate

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6
Q

Sodium hydroxide: Accurately weight about 5 g of potassium biphthalate, previously crushed lightly and dried at _________, and dissolve in 75 mL of carbon-free water. Add 2 drops of phenolphthalein TS, and titrate the sodium hydroxide solution to the production of a permanent pink color. Each 204.23 mg of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

120 degrees for 2 hours

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7
Q

Sodium hydroxide: Accurately weight about 5 g of potassium biphthalate, previously crushed lightly and dried at 120 degrees for 2 hours, and dissolve in 75 mL of carbon-free water. Add 2 drops of _________, and titrate the sodium hydroxide solution to the production of a permanent pink color. Each 204.23 mg of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

phenolphthalein TS

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8
Q

Sodium hydroxide: Accurately weight about 5 g of potassium biphthalate, previously crushed lightly and dried at 120 degrees for 2 hours, and dissolve in _______ of carbon-free water. Add 2 drops of phenolphthalein TS, and titrate the sodium hydroxide solution to the production of a permanent pink color. Each 204.23 mg of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

75 mL

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9
Q

Sodium hydroxide: Accurately weight about 5 g of potassium biphthalate, previously crushed lightly and dried at 120 degrees for 2 hours, and dissolve in 75 mL of carbon-free water. Add 2 drops of phenolphthalein TS, and titrate the sodium hydroxide solution to the production of a permanent pink color. Each _______ of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

204.23 mg

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10
Q

Sodium hydroxide: Accurately weight about 5 g of potassium biphthalate, previously crushed lightly and dried at 120 degrees for 2 hours, and dissolve in 75 mL of carbon-free water. Add 2 drops of phenolphthalein TS, and titrate the sodium hydroxide solution to the production of a ________. Each 204.23 mg of potassium biphthalate is equivalent to 1 mL of 1 N sodium hydroxide

A

permanent pink color

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11
Q

Sodium hydroxide: Type of reaction

A

Acid-base titration

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12
Q

Sodium hydroxide: Type of reaction

A

Neutralization reaction

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13
Q

Primary standard of Sodium hydroxide

A

Potassium Biphthalate

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14
Q

Indicator of Sodium hydroxide

A

Phenolphthalein TS

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15
Q

Endpoint of Sodium hydroxide

A

Permanent pink color

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16
Q

Sodium hydroxide preparation

A

Dissolve in 20 g of NaOH with water, dilute with water