Australia's Science Forum

Hi, try this one pH solutions Standard pH solutions may be easily prepared using the following recipes: pH2 0.01M hydrochloric acid pH3 80mL 0.1M citric acid plus 20mL 0.2M disodium hydrogen phosphate pH4 62mL 0.1M citric acid plus 38mL 0.2M disodium hydrogen phosphate pH5 48mL 0.1M citric acid plus...

Hi Sue,
The easiest way to find any MSDS is to goggle it, in search window type formulae or chemical name followed by MSDS that will be enough to find MSDS for any chemical you need.
To print MSDS just click link below and print

http://www.jtbaker.com/msds/englishhtml/s4770.htm

Conc. HCl must only be dispensed in a fume cupboard. Gloves that are resistant to HCl must be worn e.g. Nitrile or polyethylene-based.

Neutralise using Sodium Carbonate solution (say, 20% W/V). NB. This could generate copious quantities of CO2 Wear eye-protecting goggles.

hi
this is great website for indicators


http://www.chemdat.info/mda/int_en/labt ... indic.html

Hi Anastasia, I really love Internet you can find anything you need I found this one last year and it really works. We didn’t calculate RF factor but it is up to you if you are interested I can send you web address as well my version for some reason cannot go through but here is web address a...

hi,rainbow-sky Hazards & Precautions Most fibreglass materials are perfectly safe to use, providing the potential hazards are recognised and reasonable precautions adopted. Normally you will have no problems if you follow these simple rules: 1. Do not let any materials come into contact with the...

hi again

http://www.chemdat.info/mda/int_en/labt ... indic.html
this si website

Hi Ian,

Dissolve 0.1 g in 100 ml of ethanol (20 %) or 0.04 g in 1.05 ml of
sodium hydroxide solution 0.1 mol/l and make up to 100 ml with water.
This is website to get acid base indicators and if you click on cat number it will give you MSDS for indicators as well

hi brockway,
try this website
http://www.princoinstruments.com/booklet.pdf

hi jen1, if happens again Superglue and soapy water To remove super glue from metal use very hot soapy water. You need to be patient, and after a few applications, the superglue should be removed. Note that with very stubborn super glue stains you may need to use almost boiling water to get rid of a...

hi Judy,
There are only 1,2 and 5 L available, tell you teachers you can make only 2 L

hi jo,
try this one
http://www.civeng.unsw.edu.au/about/civ ... tances.php

Hi, Hoe you can use this one RAINBOW EXPERIMENT Equipment: Large measuring cylinder (1L) Sodium Carbonate (washing soda) Vinegar Long stirring rod Universal indicator Method: Fill measuring cylinder (3/4) with water Stir approximately 10mL of universal indicator Add 30 gr washing soda Add about 80 m...

hi tania, i store my with corrosives but u can use alternative Bromine water Bromine is an extremely dangerous substance to handle - great care must be taken when handling and breaking open the ampoules. To purchase bromine, a poison permit must first be obtained (bromine being a Schedule 7 poison.)...

Hi Noela, try thison Biuret solution For one liter: 1.5 g cupric sulfate pentahydrate (CuSO4 5 H2O) 6.0 g sodium potassium tartrate tetrahydrate (NaKC4H4O6 4 H2O). Dissolve these in 500 ml of H2O. Add 300 ml of 10% NaOH. Add water to make total volume of 1 liter. Store in a plastic bottle protected ...

sorry Robbie,
I'll be more careful next time

Hi Gayle,
Mini MSDS or Summary is located in the top left corner on your screen, but do not forget that you have to be in the academic mode to access it.

Hi Judygee

try this one

http://www.longman.co.uk/gcsebiology/pd ... experiment'

hi mother
try this website they have some good ideas

http://webs.mn.catholic.edu.au/science/ ... tm#9.2.1.c

Hi Diane,

There is formulae that you can used for any dilution (aqueous)
M1* V1=M2 *V2
Where M 1 is molarity of solution to be diluted
V1 is volume of this solution
M2 is desired molarity
V2 is volume of solution required
To find V1
V1 = M2*V2/M1

Hope this will help