calculator

What form of calcium chloride does the calculator use? The one I can easily acquire from a lab supply company states it is only 77.5% pure. The only 99% pure CaCl2 I can acquire is CaCL2.6H2O. I'm getting wildly different results from different calculators and I assume it's because of product...

Hello how is everyone In all commercial fertilizers they write down only the percentage of fertilizer analyzes And many of them do not write how many parts per million add fertilizer in the specified dose I was looking for a way to calculate and found on a website a guide on how to calculate...