How many grams of cacl2 are present in 25ml of a 0.500m solution?

The  grams  of  cacl2    are  presented  in  25 ml of   a  0.500 M   solution  is  calculated as   follows

find  the  number  of  moles

moles= molarity  x   volume/1000 

=  0.500  x25 /1000  =0.0125  moles

mass  =  moles  x molar  mass  of  cacl2

=  0.0125 mol x    111.1 g/mol  =1.389  grams

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