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Some Basic Concepts of Chemistry
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10/08/2021 11:32 am
Topic starter
A sample of AlF3 contains 3.0 × 1024 F– ions. The number of formula unit of this sample are
(a) 9 × 1024
(b) 3 × 1024
(c) 0.75 × 1024
(d) 1.0 × 1024
1 Answer
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10/08/2021 11:36 am
Answer is : (d) 1.0 × 1024
Explanation:
An, AlF3 the number of F is 3 for one AlF3 molecule 3F– = 1 formula unit of AlF3
3.0 x 1024 F– = \(\frac{1}{3}\)x 3.0 x 1024 AlF3 units