Unidades de concentración

Quiz
•
Chemistry
•
University
•
Easy
Sandra Gil
Used 21+ times
FREE Resource
12 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Se mezclan 5,00 kg de cloruro de sodio, 3385 g de bromuro de sodio y 8,635 lb de carbonato de sodio. Calcule la fracción en masa de cada componente.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Con 50,0 g de plata ¿ cuántos gramos de aleación al 60% en plata se pueden preparar?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
¿Cuál es el porcentaje de humedad de una muestra de papel, si antes de someterse al proceso de secado pesó 17,2 g y luego del proceso pesó 10,3 g.
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Se disuelven 210 ml de etanol a 15°C en la cantidad de agua necesaria para obtener 2,75 L de solución. Calcule la concentración en mg/ml.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Calcule la concentración en g/ml a 20°C de una solución de ácido nítrico al 23%.
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Calcule la fracción molar del óxido de Aluminio Al2O3, en una solución acuosa, cuyo porcentaje en peso es 32,5%.
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Cuántos gramos de yodo I2 deben disolverse en 725 ml de disulfuro de carbono CS2 (d=1,261 g/ml), para obtener una disolución 0,236 molal
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