Hydrochloric acid

[Labbie]

we have 10m 32% of HCL. I have never had to make up 0.05m very weak. Can some kind soul, please tell me the amount of Conc HCL I need to make up 200ml of 0.05m.

[Sassi]

Hi Pommy,

Using the formula; M1 x V1 = M2 x V2 where M= is concentration and V= volume (mL)

10M x V1 = 0.05M x 200 > V1 = (0.05 x 200)/ 10M > V1 = 1mL

So you need 1mL of your 10M HCl in 200mL of H2O to make your 0.05M solution!

Good Luck,
Sassi

[lada]

Sassi, just beat me to it. Yes, Sue, that is correct.
Have a nice day
Lada

[Ocker]

I would Dilute to 1M Eirst 10 to 1 then dilute to 0.05 20 to 1 always adding acid to water never add water to acid it can boil and splash you

[Labbie]

Thank you, you see I had a holiday, think my mind is still on holiday. Some times.

[estelle]

Hi
I had a request last week for 25mLs of 0.001M of HCl, NaOH and acetic acid, hardly seemed worth the effort.
Estelle

[cactus155]

Great was that 1 student doing something or a demo?