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

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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