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Mol and Molecular weigths

Authored by Andres Barrera

Science, Chemistry

11th Grade

Used 59+ times

Mol and Molecular weigths
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20 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Hallar el peso molecular del ácido nítrico (HNO3) P.A. (H = 1, N = 14, O = 16)

64

63

73

70

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

En 36 gramos de carbono. ¿Cuántos átomos existen?

1

3

2

5

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Una muestra de carbono con una masa de 12.011 g contiene:

6.02 X 1023 Moles de carbono

6.02 X 1023 átomos de carbono o 1 mol de átomos de carbono

12.011 moles de carbono

12 uma

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Hallar los gramos de oxígeno en 19,6 g de ácido sulfúrico H2SO4.

8,12

21,8

12,8

2,18

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

El peso molecular del yeso CaSO4 . 2 H2O es : P.A.(Ca = 40, S = 32, O = 16, H = 1)

172

126

162

127

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Determine el número de átomos gramo en 988 g de cromo. P.A.(Cr = 52)

12

19

14

17

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

En 16 g de calcio. ¿Cuántos átomos de calcio existen? P.A.(Ca = 40)

2,04 x 1024

2,2046 x 1023

2,046 x 10-22

2,40 x 1023

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