COMPLETE
How many grams of CaCl2 are in 250 mL of 2.0 M CaCl2?

There are 55, 49 g of CaCl2

Explanation:

We calculate the weight of 1 mol of CaCl2:

Weight CaCl2=Weight Ca + 2x(Weight Cl)= 40,08g+ 2x 35, 45g=110,98 g/mol

1000ml2 mol of CaCl2

250mlx= (250 ml x 2 mol of CaCl2)/1000ml= 0,5 mol of CaCl2

1mol 110,98g

0,5mol ---x= (0,5molx110,98g)/1 mol= 55,49 g

true

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