I think the answer you have selected is right, I'm not sure tho
Answer:
.371 mole of NaCl
Explanation:
Na Cl Mole weight = 22.989 + 35.45 = 58.439 g/mole
21.7 g / 58.439 g/mole = .371 mole
They are gases at room temperature
Hope this helps:)
Where is the picture to this?
