
Soluciones
Authored by Saul Cardenas
Chemistry
8th - 12th Grade
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Si tengo 5M en 1 litro de solución, ¿de cuántos moles de soluto estamos hablando?
5
1
0.2
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿Cuántos moles existen en 25 g de H2SO4 ? (S:32; H:1; O:16)
0.29 moles
0.26 moles
0.28 moles
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la molaridad de una disolución de 250 ml en la que están disueltos 30 g de cloruro sódico (NaCl) (Na:23; Cl:35.5)
0.0025 mol/L
2.05 g
2.05 mol/L
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular el volumen de una disolución 0.4 molar que contiene 10 g de nitrato de sodio NaNO3
0.294 L
0.471 L
0.047
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Obtén la molaridad de una disolución que tiene 1.2 moles de HCl en 2 litros de disolución
0.5 M
0.6 M
1.6 M
2.4 M
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se disuelven 1.2 g de KMnO4 en 500 mL de agua. La concentración molar de la solución es:
Las masas atómicas son: K =39, Mn = 55, O = 16.
0.022 M
0.015 M
0.032 M
0.011 M
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la cantidad de masa del soluto en la siguiente solución de 500 ml K2CrO4 a una molaridad de 0.210 M (K:39; Cr: 52; O:16)
20.38 g aproximadamente
200.8 g aproximadamente
0.28 g aproximadamente
12 g aproximadamente
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