• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Determinar el punto de ebullicion y tencion superficial del agua.

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  • Essay length: 1380 words
  • Submitted: 11/07/2002
Share this essay:
AS and A Level Spanish

The first 200 words of this essay...

THE MACKAY SCHOOL

Science Departament

Laboratorio de Química Nº 5

DETERMINAR EL PUNTO DE EBULLICION Y TENCION SUPERFICIAL DEL AGUA.

ACTIVIDAD 1

OBJETIVO:

Determinar el punto de ebullición de 150ml de agua y determinar el efecto de la sal sobre este.

HIPOTESIS:

El punto de ebullición normal del agua es de 100°C, la sal debería afectar a este, aumentándolo.

MATERIALES:

a) Mechero de Bunsen

b) Rejilla de Asbesto

c) Trípode

d) Vaso precipitado de 250ml (Pyrex)

e) Termómetro

f) Agua

a) Sal de mesa (cloruro de sodio)

PROCEDIMIENTO:

Primer paso:

Llenamos el vaso precipitado directamente desde la llave con 150ml de agua potable.

Segundo paso:

Colocamos sobre la rejilla de asbesto el vaso precipitado con el agua y la dejamos hervir. Observando cuidadosamente el cambio de temperatura y siguiendo las indicaciones del profesor.

Tercer paso:

Cuando el agua alcanzo su punto de ebullición, le agregamos 2 cucharadas de sal de mesa, y esperamos que hirviera nuevamente.

Cuarto paso:

Cuando el agua volvió a hervir, medimos su temperatura, y luego la dejamos enfriar.

Read more
The above preview is unformatted text

Found what you're looking for?

  • Start learning 29% faster today
  • Over 150,000 essays available
  • Just £6.99 a month

  • "
    This website has been a major help to me--I don't know what I would have done without it. You can depend on Markedbyteachers.com for solid, dependable essays.
    "
    Sabrina, Washington. IB English, History, Chemistry, Anthropology.
  • "
    This site is absolutely amazing, it will greatly improve your chances of getting the highest possible mark in the coursework and essays required for school, college and university. I would definitely recommend it, it got me my A.
    "
    Shailan, Leicester. A Level Student. Very useful for Biology and Chemistry, also great help in Econo

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.