Question

(A) Calculate the mass of 3.011 x 10 24 atoms of carbon
(B) the formula unit mass of Al2(so4)3

Answer 1

Hey !


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1 st ANSWER => 140 G

EXPLANATION


14 grams of N2 have 6.023 *1023 number of atoms


x grmas of N2 have 3.011*1023 number of atoms


x = (14*3.011*1023)/6.023 *1023


= 70 × 2 grams


 140 grams of N2 contains 3.011*1023 number of atoms.



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2. The relative formula mass of Al2(SO4)3 is 342.3..