2N -> 0.1 HCL Calculation Check

[TCoach]

So, still thinking about saving money on my DIY KHD reagent. Currently I've been buying 0.1 N HCL from Amazon at ~$21 per liter. Better than GHL reagent, but still expensive. I see I can get 1L of 2N HCL for the same $21. So, I tried to do the conversion from 2 N down to 0.1 N and wanted to make sure my math is correct.

0.1N is 5% strength of 2N

So for a 1 L solution I should add 950 ml of RODI and 50mls of 2N HCL to make a 0.1N solution, correct?

If this math is correct, then I'll be cutting my reagent cost by 95% and making 1 bottle of 2N HCL into 20 L of DIY KHD reagent pr ~$1/L.

Thanks for the math/logic check.
-Chris

 

[KrisReef]

I hate math and chemistry math is even worse, but it seems good.

i wonder if Randy has a calculator for these things somewhere?

Gloves and googles when you are working with acids and I think you are supposed to pour the concentrated acid into the water, and not the other way around for splash reduction issues?

Hopefully the man will verify what I think is truly correct?

 

[KrisReef]

Well, he does explain it exactly different that I would have here

Check my math on solution dilution - Hey, I made a rhyme! :-)

I'm cutting a 31.45% solution of muratic acid to .034% to replace some Hanna HCl cleaning solution I ran out of. The bottle I'm filling is 500ml. I think I'm using the right formula, but chemistry and algebra was a loooong time ago. . . C1*V1=C2*V2, where C = concentration and V = volume...

www.reef2reef.com

 

[Randy Holmes-Farley]

As noted, the math is correct. I'm not aware of a dilution calculator, but I'm sure there are some.