INDICADORES Y PH

Flashcard
•
Chemistry
•
11th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
¿Qué son las soluciones amortiguadoras?
Back
Son soluciones que resisten cambios en el pH cuando se les añade un ácido o una base.
2.
FLASHCARD QUESTION
Front
¿Es verdadero o falso que la sangre y el ion bicarbonato de sodio son ejemplos de soluciones amortiguadoras?
Back
VERDADERO
3.
FLASHCARD QUESTION
Front
¿Qué color tiene la fenolftaleína en un pH 10?
Back
Es de color fucsia, por lo que la afirmación de que es incoloro es FALSO.
4.
FLASHCARD QUESTION
Front
¿Qué se entiende por ácido y base débil?
Back
Son sustancias que no se han disociado completamente en solución.
5.
FLASHCARD QUESTION
Front
¿Cuál es el rango de pH para sustancias básicas?
Back
El rango de pH para sustancias básicas es de 7 a 14.
6.
FLASHCARD QUESTION
Front
¿Qué es el pH?
Back
Es la escala que se usa para medir la acidez y la alcalinidad de una sustancia.
7.
FLASHCARD QUESTION
Front
¿Qué indica un pH menor a 7?
Back
Indica que la sustancia es ácida.
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