1. UNIDADES QUÍMICAS DE MASA
Authored by HAYDEE ELIZABETH CALIXTO TRUJILLO
Chemistry
Professional Development
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1. ¿Cuántos gramos de calcio se pueden obtener de 8 mol de CaCO3 , PA (Ca=40, C=12, O=16) ?
180
310
300
320
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. Se dispone de 720 g de agua, indicar cuántos gramos de hidrógeno se obtienen, PA (H=1, O=16).
70
80
120
90
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
3. La masa de 0,3 moles de Al2(SO4)3 es :
P.A.(Al = 27, S = 32, O = 16)
102,6
103,6
100,6
104,5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
4. Diez moles de Ca(HCO3)2 es :
P.A.(Ca = 40, O = 16, C = 12, H = 1)
1700
1620
1610
1200
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
5. ¿Cuántas moles gramo hay en 90 gramos de agua (H2O)? P.A.(O = 16, H = 1)
3
4
5
2
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