Molaridad

Interactive Video
•
Chemistry
•
University
•
Hard
Rocio Rosado
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es la molaridad?
Una forma de expresar la masa de una disolución.
Una forma de expresar la concentración de una disolución.
Una forma de expresar el volumen de una disolución.
Una forma de expresar la densidad de una disolución.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la fórmula para calcular la molaridad (M)?
M = Litros de la disolución / moles del soluto (L / n)
M = masa del soluto / peso molecular
M = moles del soluto / Litros de la disolución (n / L)
M = moles del soluto * Litros de la disolución (n * L)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el peso molecular del cloruro de cobalto (CoCl2)?
64 g/mol
132 g/mol
128.9 g/mol
96 g/mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule la molaridad de 6,52 g de CoCl2 (128,9 g/mol) disueltos en una solución acuosa con un volumen total de 75,0 mL.
0.0869 M
0.674 M
6.74 x 10-4 M
8.69 M
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos gramos de CaCl2 (110,98 g/mol) hay en 250,0 mL de una solución de 0,200 M de cloruro de calcio?
1.5 g
5.55 g
3 g
58 g
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