Homework Help: chemistry

Posted by Linda on Saturday, October 29, 2011 at 5:02pm.

You need to make an aqueous solution of 0.121 M magnesium chloride for an experiment in lab, using a 250 mL volumetric flask. How much solid magnesium chloride should you add ?

chemistry - DrBob222, Saturday, October 29, 2011 at 5:06pm
How many moles do you need? That is M x L = ??
moles = grams/molar mass. You know moles and molar mass, solve for grams.

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