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Chemistry
15 July, 15:50
How many grams are in 7.8 moles of NaCl?
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Alia Gallegos
15 July, 16:07
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Answer: 456.3g
Explanation:
Mass in grams = ?
Number of moles = 7.8 moles
Molar mass of NaCl = ?
For molar mass of NaCl, use atomic mass of sodium Na, = 23; Chlorine Cl = 35.5
NaCl = (23 + 35.5) = 58.5g/mol
Apply the formula:
Number of moles = (Mass in grams / molar mass)
7.8 moles = Mass / 58.5g/mol
Mass = 7.8 moles x 58.5 g/mol
Mass = 456.3g
Thus, there are 456.3g in 7.8 moles of NaCl.
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