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3 years ago

The chemical formula for table sugar is C12H11O22. What can you tell from this formula?

Chemistry

2 answers:

just olya [345]3 years ago

7 0

I say the answer is The ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1

Archy [21]3 years ago

4 0

Answer: The correct answer is the ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1.

Explanation:

The given chemical formula for table sugar is $C_{12}H_{11}O_{22}$ .

The above compound contains 12 atoms of carbon atom, 11 atoms of hydrogen and 22 atoms of oxygen.

The ratio of oxygen atoms to hydrogen atoms is $22:11::2:1$ and the ratio of carbon atoms to hydrogen atoms in a molecule of sugar is $12:11$

An oxygen atom contains 8 protons and a carbon atoms has 6 electrons.

Hence, the correct statement is the ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1.

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Answer:

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Explanation:

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2 years ago

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2 years ago

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An unknown liquid is composed of 34.31% c, 5.28% h, and 60.41% i. The molecular weight is 210.06 amu. What is the molecular form

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In an unknown liquid, the percentage composition with respect to carbon, hydrogen and iodine is 34.31%, 5.28% and 60.41% respectively.

Let the mass of liquid be 100 g thus, mass of carbon, hydrogen and oxygen will be 34.31 g, 5.28 g and 60.41 g respectively.

To calculate molecular formula of compound, convert mass into number of moles as follows:

$n=\frac{m}{M}$

Molar mass of carbon, hydrogen and iodine is 12 g/mol, 1 g/mol and 126.90 g/mol.

Taking the ratio:

$C:H:I=n_{C}:n_{H}:n_{I}$

Putting the values,

$C:H:I=\frac{34.31 g}{12 g/mol}:\frac{5.28 g}{1 g/mol}:\frac{60.41 g}{126.90 g/mol}=6:11:1$

Thus, molecular formula of compound will be $C_{6}H_{11}I$ .

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3 years ago

What volume of the stock solution (Part A) would contain the number of moles present in the diluted solution (Part B)?

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2 years ago

Why do you think it is a bad idea to use taste, touch, or smell to identify an unknown chemical?

miv72 [106K]

Answer:

Because it can cause health problems or injuries to our sense organs.

Explanation:

Chemicals in the laboratory are made up of different constituents, which may be dangerous or injurious to health. This is the reason why safety measures or precautions have to be taken when working in the laboratory. One of those safety measures is that "one should never use taste, touch, or smell to identify an unknown chemical".

This is so because a chemical that is unknown amounts to the fact that what such chemical contains is unknown, hence, the chemical might have the ability to cause harm or injuries to the sense organ. For example, a conc. acid that is tasted will burn the tongue etc.

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3 years ago