Homework Help: chemistry

Posted by student on Sunday, January 22, 2012 at 9:16pm.

What mass of water must be added to 0.5 mol of glucose to make a solution of 25 percent by mass?The molar mass of glucose is 180 g/mol.

chemistry - DrBob222, Sunday, January 22, 2012 at 9:22pm
mass glucose/(g. glucose + g. H2O)x 100 = 25%
g glucose = mol x molar mass.

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