Why did the population of deer start to increase in 1905?

Chemistry

1 answer:

laiz [17]2 years ago

7 0

Laws against hunting and killing for fur trade uses only

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a compound has a molar mass of 129 g/mol if its empirical formula is C2H5N then what is the molecular formula

Elena-2011 [213]

Given :

A compound has a molar mass of 129 g/mol .

Empirical formula of compound is C₂H₅N .

To Find :

The molecular formula of the compound.

Solution :

Empirical mass of compound :

$M_e = ( 2 \times 12 ) + ( 5 \times 1 ) + ( 1 \times 14 )\\\\M_e = 43\ gram/mol$

Now, n-factor is :

$n = \dfrac{M}{M_e}\\\\n = \dfrac{129}{43}\\\\n = 3$

Multiplying each atom in the formula by 3 , we get :

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Answer:

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Explanation:

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Anton van Leeuwenhoek used a microscope to observe

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A gas starts at a volume of 23 L and a pressure of 1.23 atm. What is the new pressure if you

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Answer:

Explanation:

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