A buffer is a solution that ______.Multiple choice question.resists changes in pH when limited amounts of acid or base are addedchanges color when limited amounts of acid or base are added.always has a pH of 7, even when limited amounts of acid or base are addedquickly changes pH when limited amounts of acid or base are added
Question
A buffer is a solution that ______.Multiple choice question.resists changes in pH when limited amounts of acid or base are addedchanges color when limited amounts of acid or base are added.always has a pH of 7, even when limited amounts of acid or base are addedquickly changes pH when limited amounts of acid or base are added
Solution
Claro, aquí tienes la respuesta paso a paso:
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Leer la pregunta detenidamente: La pregunta es sobre qué es un buffer y se presenta en formato de opción múltiple.
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Entender las opciones:
- Opción 1: "resists changes in pH when limited amounts of acid or base are added" (resiste cambios en el pH cuando se añaden cantidades limitadas de ácido o base).
- Opción 2: "changes color when limited amounts of acid or base are added" (cambia de color cuando se añaden cantidades limitadas de ácido o base).
- Opción 3: "always has a pH of 7, even when limited amounts of acid or base are added" (siempre tiene un pH de 7, incluso cuando se añaden cantidades limitadas de ácido o base).
- Opción 4: "quickly changes pH when limited amounts of acid or base are added" (cambia rápidamente de pH cuando se añaden cantidades limitadas de ácido o base).
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Analizar cada opción:
- La opción 1 describe la función principal de un buffer, que es resistir cambios en el pH.
- La opción 2 describe un indicador de pH, no un buffer.
- La opción 3 es incorrecta porque un buffer no necesariamente tiene un pH de 7; su pH depende de los componentes del buffer.
- La opción 4 es incorrecta porque un buffer precisamente evita cambios rápidos en el pH.
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Seleccionar la opción correcta: La opción correcta es la primera: "resists changes in pH when limited amounts of acid or base are added".
Por lo tanto, la respuesta correcta es: "resists changes in pH when limited amounts of acid or base are added".
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