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AysviL [449]
3 years ago
10

How many atoms of oxygen are in 0.100 miles of silicon dioxide, SiO^2

Chemistry
1 answer:
mixas84 [53]3 years ago
7 0
<span>3.10 moles SiO2 (1 mole Si/1 mole SiO2)(6.022 X 1023/1 mole Si) = 1.87 X 1024
</span><span>= 1.20 X 1023 atoms of oxygen.</span>
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What is an azeotrope? 2. Under what conditions is it better to perform a steam distillation (instead of, say, a simple distillat
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Answer:

Explanation:

1.)azeotrope is a mixture of two or more liquid components under constant boiling, it has a constant mole fraction composition of present component which can be homogeneous or heterogeneous.

2.)the condition which it's best performed when there's liquids that is non-volatile which boils higher than other liquids with at least 26 degrees .

steam azentropic distillation

3.During a steam distillation, How to know if the organic compound is still coming over is when you see the solution becoming cloudy or when there is existence of two layers.

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B.) Layers that are mostly products

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3 years ago
What is the final pressure of a system (atm) that has the volume increased from 0.75 l to 1.1 l with an initial pressure of 1.25
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Boyle's law states that pressure is inversely proportional to volume of gas at constant temperature 
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3 years ago
An analysis of physical, chemical and microscopic properties of urine is called?​
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Explanation:

5 0
3 years ago
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The tiara worn by Kate Middleton for her wedding to Prince William of England contains 888 diamonds and belongs to the British m
allsm [11]

Answer:

The number of atoms in the gemstones of that tiara is 8.9125\times 10^{24} atoms.

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Mass of 888 diamonds in tiara:

888\times 0.200 g=177.600 g

Given that diamond is a form of carbon.

Atomic mass of  carbon atom = 12 g/mol

Moles of 77.600 g of carbon =\frac{177.600 g}{12 g/mol}=14.800 mol

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14.800 mol\times 6.022\times 10^{23} atoms =8.9125\times 10^{24} atoms

The number of atoms in the gemstones of that tiara is 8.9125\times 10^{24} atoms.

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3 years ago
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Answer:

Contains DNA, Contains Ribosomes, Lacks a nucleus

Explanation:

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