chemistry - 3a - common chemical apparatus Flashcards

1
Q

What is a conical flask used for?

A

To hold an measure chemical liquid samples.

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2
Q

What is a digital balance used for?

A

To precisely measure the mass of an object.

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3
Q

What is a pipette with safety filler used for?

A

To transport a measured volume of liquid.

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4
Q

What is a burette used for?

A

To dispense small volumes of liquid with high accuracy.

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5
Q

What is a volumetric (standard) flask used for?

A

Measuring accurate volumes of liquid materials for laboratory experiments.

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6
Q

What is a distillation (round-bottomed) flask used for?

A

The separation and/or purification of liquids or liquid mixtures where the components have different boiling points.

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7
Q

What is a condenser used for?

A

Reducing a gas or vapour to a liquid.

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8
Q

What is a thermometer used for?

A

It measures temperature.

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9
Q

What is a Buchner or Hirsch or sintered glass funnel used for?

A

To separate solids (sludge) from a mixture.

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10
Q

What is glassware with ground glass joints (‘Quickfit’ or similar) used for?

A

Give gas tight seals provided they are properly inserted.

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11
Q

What is thin-layer chromatography apparatus used for?

A

It is used to separate compounds in a mixture.

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12
Q

What is a colorimeter used for?

A

To detect colour and determine the solutions concentration.

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13
Q

What is the melting point used for?

A

To characterize organic and inorganic crystalline compounds and to ascertain their purity.

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14
Q

What is a separating funnel used for?

A

Liquid-liquid extractions, separating a mixture’s components into two solvent phases of different densities.

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