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3 years ago

14

Please answerrrrrrrrrrrrrrrrrrrrrrrrr

1 answer:

nydimaria [60]3 years ago

8 0

Answer: I'm in no way like an expert but I've heard water goes from an elevated area to a lower area. So it should be arrows that start at a more elevated to less elevated. Like white to brown, and orange to yellow, and stuff like that. I hope that helped? Anyway, have a lovely day!

Explanation:

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Calculate the number of O atoms in 0.150 g of CaSO4 · 2H2O.

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Answer:

There are 0.00523 moles of oxygen in 0.150 grams of calcium sulfate crystal.

Explanation:

Mass of calcium sulfate crystal = m = 0.150 g

Molar mass of calcium sulfate crystal = M = 172 g/mol

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$n=\frac{m}{M}$

$n=\frac{0.150 g}{172 g/mol}=0.0008721 mol$

1 mole of calcium sulfate crystal has 6 moles of oxygen atoms. Then 0.004446 moles calcium sulfate crystal will have :

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There are 0.00523 moles of oxygen in 0.150 grams of calcium sulfate crystal.

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- Source: google

Hopefully this was clear and you understood!

3 0

3 years ago