average : 13.69mL
calculate total moles of Mg2+ AND CA2+ in 10mL hard water
option 1: 13.65/1000=0.001365L x 0.01 M EDTA= 1.365x10^-5
or
option 2: the same as above but include my calcium moles
and multiple it by my Ca2+ moles?
Moles again does this too make sense?
I think that this is right
Reply:now they are startin with the Chem porn, Math porn wasn't enough
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