Experiment 1: Determination of formula unit of a compound Lesson

7 Slides • 3 Questions

1

Experiment 1: Determination of formula unit of a compound

Week 1 (4/8/2021)

9.00am-11.00am

E1P3

2

3

Multiple Choice

Why should we press the "TARE" button before taking the zinc powder?

1

To make sure the accuracy of the analytical balance

2

To make the mass of the content on the analytical balance become zero

3

To switch on the analytical balance

4

5

Open Ended

Why the crucible MUST be covered during the cooling process?

Type response here

6

7

The product after cooling down at room temperature

8

9

Open Ended

Why we need to reheat the crucible until the difference in mass does not exceed 0.02 g?

Type response here

10

Experiment 1: Determination of formula unit of a compound

Week 1 (4/8/2021)

9.00am-11.00am

E1P3

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