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Arlecino [84]
2 years ago
6

How many hydrogen atoms are contained in 167 grams of propane?

Chemistry
1 answer:
Dmitry_Shevchenko [17]2 years ago
4 0

Propane is C3H8

So Molar mass propane = 3*12 + 8*1 = 44 <span>
No. of moles of propane = 167/44 = 3.795 moles</span>

From the stoichiometry: <span>
No. of moles of hydrogen = 3.795 moles * (8 moles hydrogen / 1 mole propane) = 30.36 moles 

Using Avogadros number, 1 mole of any substance contains 6.022 x 10^23 atoms, therefore: 
<span>No. of hydrogen atoms = 30.36 * 6.022 x 10^23 = 1.828 x 10^25 atoms</span></span>
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Which of the following additions to alkenes occur(s) specifically in an syn fashion?
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Answer:

E) A, B, and C

Explanation:

Syn addition refers to the addition of two substituents on the same face or side of a double bond. This differed from anti addition which a occurs across opposite face of the double bond.

Hydrogenation, hydroboration and dihydroxylation all involve syn addition to the double bond, hence the answer chosen above.

8 0
2 years ago
In a 51.0-g aqueous solution of methanol ch4o the mole fraction of methanol is 0.270. what is the mass of each component?
gladu [14]
Mole fraction<span> is another way of expressing the concentration of a solution or mixture. It is equal to the </span>moles<span> of one component divided by the total </span><span>moles.

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Hope this answers the question. Have a nice day.</span>
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3 years ago
Modern oil tankers weigh over a half-million tons and have lengths of up to one-fourth miles. Such massive ships require a dista
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Answer:

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3 years ago
What is the compound name of Ba3N?
eimsori [14]

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<u>Explanation</u>:

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  • Barium nitrate is the inorganic compound with the chemical formula Ba(NO₃)₂. It is colorless, toxic, and water-soluble.
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2 years ago
How mutch heat do you use to evaporerate warter
Free_Kalibri [48]

Answer:

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Explanation:

brainliest?

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3 years ago
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