3 years ago

How many fluorine atoms are present in 5.85 g of c2f4?

1 answer:

4 0

The molar mass of C2F4 (tetrafluoroethylene) is equal to 100 g/mol. The number of moles of C2F4 in the given amount,
n = (5.85 g) / (100 g/mol) = 0.0585 mols C2F4
The number of molecules per mol is calculated through the equation,
(0.0585 mols) x (6.022 x 10^23)
Since there are 4 F atoms each molecule then,
(0.0585 mols) x (6.022 x 10^23)(4)
= 1.41 x 10^23 atoms of F

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3 years ago

Strontium nitrate, Sr(NO3)2, is used in fireworks to produce brilliant red colors, Suppose we need to prepare 366.6 ml. of 0.115

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Explanation:

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2. Calculate the mass of SrNO₃)₂

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