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evablogger
2 months ago
11

A sample of the chiral molecule limonene is 62% enantiopure. what percentage of each enantiomer is present? what is the percent

enantiomeric excess?
Chemistry
2 answers:
alisha [2.9K]2 months ago
6 0

The composition consists of 62 % one isomer and 38 % its enantiomer.

Assuming that the mixture comprises 62 % of the (R)-isomer.

Then the percentage of the (S) is calculated as 100 % - 62 % = 38 %.

Enantiomeric excess = %  (R) - % (S) = 62 % - 38 % = 24 %.


lions [2.9K]2 months ago
3 0

Answer: The proportion of the R-enantiomer is 62 %, the S-enantiomer is at 38 %, and the enantiomeric excess is 24 %

Explanation:

We know that:

A chiral molecule limonene is recorded as 62 % enantiopure.

This compound has two enantiomeric forms, R-limonene, and S-limonene.

Let's state that 62 % of the sample is R-limonene.

Consequently, the remaining S-limonene will amount to = (100 - 62) = 38 %

Enantiomeric excess is determined by the difference between the percentage of the major and the minor enantiomer.

In mathematical terms,

\%\text{ Enantiomer excess}=\%\text{ Major enantiomer}-\%\text{ Minor enantiomer}

% major enantiomer = 62 %

% minor enantiomer = 38 %

Substituting the values into the equation, we have:

\%\text{ Enantiomer excess}=62\%-38\%=24\%

Thus, the R-enantiomer is 62 %, the S-enantiomer is 38 %, and the enantiomeric excess is 24 %.

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2 months ago
Citric acid is a naturally occurring compound. what orbitals are used to form each indicated bond? be sure to answer all parts.2
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Response: Below are the orbitals responsible for each bond identified in citric acid per the attachment.

Response 1) σ Bond a: Carbon uses SP^{2} and Oxygen employs SP^{2}.

Clarification: The sigma bonds are formed through the hybrid orbitals of carbon and oxygen. This occurs at the 'a' location in the citric acid structure.

Response 2) π Bond a: Both Carbon and Oxygen have π orbitals.

Clarification: The π-bond at position 'a' consists of interactions between the π orbitals of carbon and oxygen.

Response 3) Bond b: Oxygen SP^{3} and Hydrogen solely utilizes the S orbital.

Clarification: The bonding at position 'b' includes oxygen and hydrogen atoms, with hydrogen utilizing its S orbital.

Response 4) Bond c: Carbon is SP^{3} and Oxygen is also SP^{3}.

Clarification: The bonding process at position 'c' involves both carbon and oxygen atoms with their respective hybrid orbitals.

Response 5) Bond d: Carbon atom has SP^{3} and the second carbon has SP^{3}.

Clarification: In position 'd', the bond formed between carbon atoms is SP^{3}, utilizing orbitals that underwent SP^{3} hybridization which are SP^{3}.

Response 6) Bond e: C1 has O SP^{2}.

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7 0
3 months ago
What is the emperical formula for a compound containing 68.3% lead, 10.6% sulfur, and the remainder oxygen? a. Pb2SO4 b. PbSO3 c
Tems11 [2777]

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The molecular formula is PbSO₄, indicating lead sulfate

Option c.

Explanation:

The percentage makeup shows that in 100 g of this compound, there are:

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To find the moles of each element, we divide by their molar masses:

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Next, we find the mole ratio by dividing each by the smallest number of moles:

0.329 / 0.329 = 1 Pb

0.331 / 0.329 = 1 S

1.32 / 0.329 = 4 O

Thus, the molecular formula is PbSO₄, representing lead sulfate.

8 0
2 months ago
Read 2 more answers
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