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Slav-nsk [51]
3 years ago
10

How many grams are there in 7.4x10^23 molecules of Na2SO4?

Chemistry
1 answer:
weeeeeb [17]3 years ago
8 0
Molar mass Na2SO4 = <span>142.04 g/mol

142.04 g -------------- 6.02x10</span>²³ atoms
??  g ------------------ 7.4x10²³ atoms

142.04 x ( 7.4x10²³) / 6.02x10²³

=> 174.60 g
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