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Determine the mass in units of grams​ [g] of 0.49 moles​ [mol] of a new fictitious...

Determine the mass in units of grams​ [g] of 0.49 moles​ [mol] of a new fictitious compound you have developed in the lab. The formula is A2B4C8D5 The components are​ A amu=3​;B,amu=26​;​C,amu=36​;and​ D,amu=52.

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Answer #1

Molar mass of A2B4C8D5 = 2*MM(A) + 4*MM(B) + 8*MM(C) + 5*MM(D)

= 2*3 + 4*26 + 8*36 + 5*52

= 658 g/mol

now use:

mass = number of mol * molar mass

= 0.49 mol * 658 g/mol

= 322 g

Answer: 322 g

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