Dg2

Page 1

1 1-4 .

1.

30%v/v.

:

. .

100mL. 100mL

30mL

.

. .

100mL 100mL

30mL 30g

. .

.5

2.

:

.5

.2

.1

3.

.7

.5

: . .

. . . .

. .

4.

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H2SO4

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,

.3 . Avogadro .

:

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.

.6

.

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5.

1

.

1 1. 2. 3. 4. 5.

2

.

.5

2

H2SO4 CO2 FeS

. . . . .

3

H2

(II)

2 1.

.

Na2S2O3

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2.

. 19K

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n

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e-

.11


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