RiddleRider
11.02.2020 •
Chemistry
A sample of sulfur trioxide (SO3) weighs 5100 g. How many molecules are contained in this sample? Use 80.063gmol for the molar mass of SO3.
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Ответ:
From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ molecules. This simply implies that
1 mole of SO₃ = 6.02×10²³ molecules.
Recall,
1 mole of SO₃ = 80.063 g
Thus,
80.063 g of SO₃ = 6.02×10²³ molecules
With the above information, we can obtain the number of molecules in 5100 g of SO₃. This can be obtained as follow:
80.063 g of SO₃ = 6.02×10²³ molecules
Therefore,
5100 g of SO₃
5100 g of SO₃ = 3.83×10²⁵ molecules.Therefore, 5100 g of SO₃ contains 3.83×10²⁵ molecules
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Ответ:
When it comes to live and frozen foods, some are better than others for enhancing the coloration of aquarium fish. Crustaceans like brine shrimp are a great way to enhance coloration, as are frozen or freeze-dried foods like Mysis shrimp, krill and other crustaceans.
Explanation:
Hope this helps. Short answer, I don't really think they care. So no. I mean it just helps boost their color. Doesn't mean they prefer it.