calculation problem

[Diwata]

How many ml of 5mEq MgSO4 solution are needed to prepare 18mmol of MgSO4 in 100ml of water for inj? (Formula wgt 246)

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[shakernaplex]

1.8ml is it right?

 

[shakernaplex]

1 meq = 0.5 m mol for divalent cations, So 18m mmol = 36 meq.
then 36 meq in 100ml, cal for 5 meq.
13.8ml

 

[Diwata]

Thanks. There was no key answer and i had no clue.