4 years ago

What is the mass of 3.91 x 10^24 molecules of SeO2? The molar mass of SeO2 is 110.96 g/mol

1 answer:

6 0

3,91·10²⁴ = 39,1·10²³
-----------------------------

110,96g ----------- 6,02·10²³ molecules
Xg ------------------ 39,1<span>·10²³ molecules
X = (110,96</span>×39,1·10²³)/<span>6,02·10²³
<u>X = 720,687g</u>

:)</span>

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