> who knows the 2mmol/lTris-Hcl's PH?
Depends on your water source - that's why you have to pH it.....
知更鸟 - 08 Nov 2006 05:17 GMT
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> > who knows the 2mmol/lTris-Hcl's PH?
>
> Depends on your water source - that's why you have to pH it.....
thank you !now i have known how to ph it!