Answer:
Refer to my answer in your other question. Try to understand it.
Answer: 9.15 x 10²⁴ atoms NaCl
Explanation: solution:
Use the relationship of moles and Avogadro's number
15.2 moles NaCl x 6.022x10²³ atoms NaCl / 1 mole NaCl
=9.15x 10²⁴ atoms NaCl
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