
CUESTIONARIO DE QUÌMICA 2DOS
Authored by Mirella Montes
Chemistry
7th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se pesan 6.12 gramos de Na, determine ¿Cuántas moles representan?
0,30 moles
0,29 moles
0,27 moles
0,28 moles
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determina la masa molecular de la siguiente sustancia H2SO4
92 g
95 g
94 g
98 g
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calcule el porcentaje de H, Sb, O, presentes en el àcido piro antimonioso
1,2 % - 74,4% - 24,4 %
1,6 % - 75,1 % - 23,9 %
1,4% - 72,3 % - 25,9 %
1,0 % - 74,9% - 24,8 %
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Clcule la masa molecular del Carbonato de hierro (III)
299,73
291,73
283,73
295,73
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un frasco de laboratorio hay 200 g de Tricloruro de hierro (FeCl3) . Averigua cuantas moles de esta sustancia contiene el frasco
1,30 mol
1,29 mol
1,24 mol
1,21 mol
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