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Estequiometria

Authored by Euclides Chacon

Chemistry

10th - 12th Grade

Used 32+ times

Estequiometria
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15 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

A massa molar da Glicose (C6H12O6) é:

Dados: M(C) = 12 g/mol; M(H) = 1 g/mol e M(O) = 16 g/mol

180 g/mol

29 g/mol

90 g/mol

30 g/mol

2.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

A massa molar do Etanol (C2H6O) é:

Dados: M(C) = 12 g/mol; M(H) = 1 g/mol e M(O) = 16 g/mol

29 g/mol

46 g/mol

23 g/mol

30 g/mol

3.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Em 90 g de água (H2O) existem:

Dados: M(H) = 1 g/mol e M(O) = 16 g/mol

1 mol

3 mol

6.1023 moléculas

30.1023 moléculas

4.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Em 22 g de gás carbônico (CO2) existem:

Dados: M(C) = 12 g/mol e M(O) = 16 g/mol

1 mol

2 mol

6.1023 moléculas

3.1023 moléculas

5.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Em 8,5 g de amônia (NH3) existem:

Dados: M(N) = 14 g/mol e M(H) = 1 g/mol

1 mol

0,5 mol

6.1023 moléculas

12.1023 moléculas

6.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

22 g de CO2

44 g de CO2

88 g de CO2

176 g de CO2

220 g de CO2

7.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

18.1023 moléculas

12.1023 moléculas

6.1023 moléculas

3.1023 moléculas

1,5.1023 moléculas

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