We have 548 grams of CaCl2. How many molecules of CaCl2 do we have? (The molar mass of CaCl2 is 110.98 g/mol) Group of answer choices
2.97 x 10^24 molecules
3.66 x 10^28 molecules
9.1 x 10^22 molecules
4.37 x 10^22 molecules

Explanation:

How many grams of cacl2 would be used in making of 5.00x10² cm³ of a ... Molar mass of CaCl2 = 111 g/mole. 2.5 moles x 111 g/mole = 278 g (280 g if you use 2 significant figures)

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl