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charle [14.2K]
4 years ago
6

Hii please help im bad at math

Mathematics
1 answer:
kaheart [24]4 years ago
6 0
It’s the last one. (I’m pretty sure, sorry if I’m wrong)
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To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
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Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

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If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

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6 divided by 2 equals 3
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