Chemical Forums

Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: light on March 24, 2005, 12:03:12 PM

Title: 10,000ppm hypochlorite
Post by: light on March 24, 2005, 12:03:12 PM

I have to make a solution of 10,000ppm hypochlorite, since 1ppm is like 1mg/l for a solute in water solution. Does this mean that i have to add 10,000mg hypochlorite in 1liter water? If hypochlorite is in a liquid form, should i take into account its density and from that to find the volume i add to the water to get a totol of 1 litre? Correct me if i am wrong. :-\ Thanks.  

Title: Re:10,000ppm hypochlorite
Post by: light on March 24, 2005, 05:54:53 PM

Please, give me some ideas. Thanks.  :(

Title: Re:10,000ppm hypochlorite
Post by: Borek on March 24, 2005, 06:18:52 PM

First, calculate the mass of the hypochlorite you will need in your final solution. I doubt you will have a hypochlorite as a solid, but if - just weight it and then add enough water to make 1l (it is not the same as adding 1l!). If you have concentrated hypochlorite solution - find out what volume contains requested mass of hypochlorite. You may need density for that, unless you know what is %w/w cocentration and you can weight solution instead of measuring volume.

Title: Re:10,000ppm hypochlorite
Post by: light on March 24, 2005, 06:49:10 PM

Is  1ppm the same like 1mg/l ? Or does it depend in other factors like the density of the solute and solvent?  ::)

Title: Re:10,000ppm hypochlorite
Post by: Borek on March 25, 2005, 06:47:42 PM

Quote from: light on March 24, 2005, 06:49:10 PM

Is  1ppm the same like 1mg/l ? Or does it depend in other factors like the density of the solute and solvent?

Well, you posted this question in at least three places, you should have enough answers at the moment ;)

1ppm is rather something like 1mg/kg - so in fact  you will need density for calculations if you have just concentration.

smarkotan oz gluthozmaz