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11Alexandr11 [23.1K]
3 years ago
7

Which of the following is a molecular formula for a compound with an empirical formula of CH2O and a molar mass of 150. g/mol.

Chemistry
1 answer:
trapecia [35]3 years ago
7 0

Answer:

C₅H₁₀O₅

Explanation:

Let's consider a compound with the empirical formula CH₂O. In order to determine the molecular formula, we have to calculate "n", so that

n = molar mass of the molecular formula / molar mass of the empirical formula

The molar mass of the molecular formula is 150 g/mol.

The molar mass of the empirical formula is 12 + 2 × 1 + 16 = 30 g/mol

n = (150 g/mol) / (30 g/mol) = 5

Then, we multiply the empirical formula by 5.

CH₂O × 5 = C₅H₁₀O₅

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4 years ago
What is the answer and why?
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D

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A teacher has asked some groups of students to investigate the relationship between the organ systems of the human body. One gro
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Explanation:

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Thus it can be said that the argument of children that the two systems are related is justified by the digestive and circulatory system of the body.

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Answer:

\frac{3}{2}He

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This implies that, for the first specie the mass number is 3, for the second specie the mass number is 6 and the third specie has a mass number of 7 and so on. The mass number is indicated as a superscript.

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