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EXPERIMENTOS
 DE QUÍMICA…
           Por:
  Elsa García Fuentes
     Ariel Mattiozzi
   Antonio Iantosca
    Sandra Petersen
B
  S
U     A
  O
N     H
  L
A     Í
  A
      A
Charlas y
     Exposiciones
Con expertos en diferentes temas
 relacionados con la Tecnología en
 nuestra ciudad, y con las últimas
tendencias técnicas a nivel mundial
E AQUÍ ALGUNAS CURIOSIDADES
• EN LOS STANDS DEDICADOS A
  LA QUÍMICA

• SE PUDIERON OBSERVAR
  ALGUNOS EXPERIMENTOS
  CASEROS

• COMO EL QUE INTENTAREMOS
  RECREAR EN LAS SIGUIENTES
DEMOSTRACIÓN INDICADOR
       ÁCIDO BASE
CON EL REPOLLO
COLORADO



   HAREMOS UN SENCILLO
       EXPERIMENTO
PARA DIFERENCIAR LAS BASES
       DE LOS ÁCIDOS
COMENZAMOS…

     SE HIERVEN HOJAS DE COL O REPOLLO
      COLORADO EN AGUA DURANTE 10-15
                  MINUTOS
LUEGO, YA CON LA SOLUCIÓN FRÍA, FILTRAMOS
  Y RESERVAMOS EL LÍQUIDO RESULTANTE Y YA
                  TENEMOS

    “NUESTRA SOLUCIÓN INDICADORA”
AHORA PROCEDEMOS A REALIZAR
              LA
COMPROBACIÓN SI LA SUSTANCIA
  ELEGIDA ES ÁCIDO O BASE….

• COLOCAMOS EN UN TUBO DE ENSAYO 2 ML
  DE VINAGRE

• SEGUIDAMENTE AGREGAMOS NUESTRO
  INDICADOR

• MEZCLAMOS…
OBTENEMOS…
UNA SOLUCIÓN ROSADA O ROJA

                    NOS
                  INDICA
                  QUE EL
                 VINAGRE
                   ES UN
                  ÁCIDO
SI REEMPLAZAMOS EL VINAGRE
      POR AGUA JABONOSA


• OBTENEMOS UNA SOLUCIÓN VERDE

• MIRAMOS EN LA TABLA DE PH…

• ESTA NOS INDICA QUE SU PH ES BÁSICO
EL COLOR DEL PIGMENTO VARÍA
     EN FUNCIÓN DEL PH…
LA ESCALA DE PH SE MANEJA
     DE 1 HASTA EL 14
ESTE FAMOSO PH REPRESENTA

   LA CANTIDAD DE IONES
HIDRÓGENO POSITIVOS EN UNA
   SOLUCIÓN DETERMINADA

       LOS VALORES
 DE 1 A 6 INDICAN ACIDEZ
   DE 8 A 14 BASICIDAD
    EL 7 ES UN NEUTRO
ESTE FUE UN PEQUEÑO RECORRIDO
       POR LA FERIA USB
Y ASÍ LO VIVIMOS QUIENES
   DISFRUTAMOS DE LA
       EXPERIENCIA
Experimentos usb 2
Experimentos usb 2
Experimentos usb 2
Experimentos usb 2
Experimentos usb 2

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Experimentos usb 2

  • 1. EXPERIMENTOS DE QUÍMICA… Por: Elsa García Fuentes Ariel Mattiozzi Antonio Iantosca Sandra Petersen
  • 2. B S U A O N H L A Í A A
  • 3.
  • 4. Charlas y Exposiciones Con expertos en diferentes temas relacionados con la Tecnología en nuestra ciudad, y con las últimas tendencias técnicas a nivel mundial
  • 5.
  • 6. E AQUÍ ALGUNAS CURIOSIDADES
  • 7. • EN LOS STANDS DEDICADOS A LA QUÍMICA • SE PUDIERON OBSERVAR ALGUNOS EXPERIMENTOS CASEROS • COMO EL QUE INTENTAREMOS RECREAR EN LAS SIGUIENTES
  • 8. DEMOSTRACIÓN INDICADOR ÁCIDO BASE CON EL REPOLLO COLORADO HAREMOS UN SENCILLO EXPERIMENTO PARA DIFERENCIAR LAS BASES DE LOS ÁCIDOS
  • 9. COMENZAMOS… SE HIERVEN HOJAS DE COL O REPOLLO COLORADO EN AGUA DURANTE 10-15 MINUTOS LUEGO, YA CON LA SOLUCIÓN FRÍA, FILTRAMOS Y RESERVAMOS EL LÍQUIDO RESULTANTE Y YA TENEMOS “NUESTRA SOLUCIÓN INDICADORA”
  • 10. AHORA PROCEDEMOS A REALIZAR LA COMPROBACIÓN SI LA SUSTANCIA ELEGIDA ES ÁCIDO O BASE…. • COLOCAMOS EN UN TUBO DE ENSAYO 2 ML DE VINAGRE • SEGUIDAMENTE AGREGAMOS NUESTRO INDICADOR • MEZCLAMOS…
  • 11. OBTENEMOS… UNA SOLUCIÓN ROSADA O ROJA NOS INDICA QUE EL VINAGRE ES UN ÁCIDO
  • 12. SI REEMPLAZAMOS EL VINAGRE POR AGUA JABONOSA • OBTENEMOS UNA SOLUCIÓN VERDE • MIRAMOS EN LA TABLA DE PH… • ESTA NOS INDICA QUE SU PH ES BÁSICO
  • 13. EL COLOR DEL PIGMENTO VARÍA EN FUNCIÓN DEL PH…
  • 14. LA ESCALA DE PH SE MANEJA DE 1 HASTA EL 14
  • 15. ESTE FAMOSO PH REPRESENTA LA CANTIDAD DE IONES HIDRÓGENO POSITIVOS EN UNA SOLUCIÓN DETERMINADA LOS VALORES DE 1 A 6 INDICAN ACIDEZ DE 8 A 14 BASICIDAD EL 7 ES UN NEUTRO
  • 16. ESTE FUE UN PEQUEÑO RECORRIDO POR LA FERIA USB
  • 17. Y ASÍ LO VIVIMOS QUIENES DISFRUTAMOS DE LA EXPERIENCIA