
Mol and Molecular weigths
Authored by Andres Barrera
Science, Chemistry
11th Grade
Used 59+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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
En 36 gramos de carbono. ¿Cuántos átomos existen?
1
3
2
5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
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
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
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
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
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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