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Answers:

1. 6.022 × 10²³

2. 1.20 × 10²⁴

3. Both contains same number of O atoms

4. 1 mole of ammonium sulfate = 4.82 × 10²⁴

    1 mole of ammonium nitrate = 2.41 × 10²⁴

5. 6.022 × 10²⁴

6. i) 116.88 g

   ii) 0.451 mole

   iii) 124.84 g

   iv) 0.039 mol

   v) 0.0704 mol

   vi) 77.55 g

the atomic mass is the bottom number on the element.

-steel jelly

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