. ILL GIVE BRAINLY

Chemistry

2 answers:

Illusion [34]3 years ago

8 0

Answer:

It has many trees and vines

Explanation:

Norma-Jean [14]3 years ago

3 0

Answer:it’s tall trees rise above all the other layers

Explanation:

The quiz said so

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Which is not on a station model? *

Fiesta28 [93]

The answer is fronts

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3 years ago

Why is hydrogen placed in group one of the<br> periodic table?

Mice21 [21]

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Hydrogen has only 1 valence electron in its outermost shell.

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4 years ago

The elemental mass percent composition of ascorbic acid (vitamin C ) is 40.92% C , 4.58% H , and 54.50% O . Determine the empiri

Lady bird [3.3K]

The empirical formula of ascorbic acid is C6H8O6.

<h3>Empirical formula</h3>

To calculate the empirical mass of a compound from the mass percentage of each element, the value of the<u> molar mass </u>of each element is used, which in this case corresponds to:

$MM_C= 12g/mol\\MM_H=1g/mol\\MM_O=16g/mol$

From this, we consider that the compound has 100 grams, so the number of moles of each element will be equal to:

$C = \frac{40.92}{12} = 3.41 \\H = \frac{4.58}{1}=4.58\\ O =\frac{54.50}{16}=3.41$

Now, divide all the values found by the <u>smallest value</u>, to find the amount present in each element:

$C = \frac{3.41}{3.41} = 1\\ H = \frac{4.58}{3.41} = 1.34\\O = \frac{3.41}{3.41} = 1$

As you can see, the value of moles of hydrogen resulted in a decimal number, so it is necessary to multiply all values by a number in common until the three meet as integers:

$C = 1 \times 6 = 6\\H = 1.34 \times 6 = 8\\O = 6 \times 6 = 6$