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ohaa [14]
3 years ago
8

What element is found in all organic molecules?

Chemistry
2 answers:
Arlecino [84]3 years ago
6 0
C Carbon .............
sweet-ann [11.9K]3 years ago
4 0

Answer:

The answer is Carbon

Explanation:

Organic compounds are considered to be all those chemical substances that contain some carbon atom in their molecule. Besides carbon, hydrogen is an important element in its constitution.

Carbon molecules unite with each other very easily, developing basic skeletons in all organic compounds. These chains can have different lengths and shapes.

Each carbon atom has a valence of 4 and the bonds in organic compounds are covalent, with the possibility of double or triple bonds.

Organic compounds can also contain other types of chemical elements other than carbon (oxygen, nitrogen, sulfur, etc.) called functional groups. A wide variety of organic compounds are formed from these functional groups.

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What is the boiling point of milk in degrees celsius?.
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How many milliliters of 2.19 M H2SO4 are required to react with 4.75 g of solid containing 21.6 wt% Ba(NO3)2 if the reaction is
Setler [38]

Answer:

1.7927 mL

Explanation:

The mass of solid taken = 4.75 g

This solid contains 21.6 wt% Ba(NO_3)_2, thus,

Mass of Ba(NO_3)_2 = \frac {21.6}{100}\times 4.75\ g = 1.026 g

Molar mass of Ba(NO_3)_2 = 261.337 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{1.026\ g}{261.337\ g/mol}

Moles= 0.003926\ mol

Considering the reaction as:

Ba(NO_3)_2+H_2SO_4\rightarrow BaSO_4+2HNO_3

1 moles of Ba(NO_3)_2 react with 1 mole of H_2SO_4

Thus,

0.003926 mole of Ba(NO_3)_2 react with 0.003926 mole of H_2SO_4

Moles of H_2SO_4 = 0.003926 mole

Also, considering:

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

Molarity = 2.19 M

So,

2.19=\frac{0.003926}{Volume\ of\ the\ solution(L)}

Volume = 0.0017927 L

Also, 1 L = 1000 mL

<u>So, volume = 1.7927 mL</u>

5 0
2 years ago
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