You have to assume each chloride is soluble. How many Cl in each?
Add the Cl, you have the volume, so molar concentration is moles Cl per liter.
Assuming the volumes are additive, what is the [Cl-]solution obtained by mixing 210mL of 0.600M KCl and 630ml of 0.385M MgCl2 ?
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i don't understand
How many millicuries should be given to a 59.0g- patient