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3 years ago

The CO2 molecule has which of the following characteristics

Chemistry

2 answers:

MissTica3 years ago

7 0

Answer:

The carbon dioxide molecule is linear and centrosymmetric at equilibrium. The carbon–oxygen bond length is 116.3 pm, noticeably shorter than the bond length of a C–O single bond and even shorter than most other C–O multiply-bonded functional groups. Since it is centrosymmetric, the molecule has no electrical dipole.

Explanation:

lilavasa [31]3 years ago

3 0

Answer:

Carbon dioxide | CO2 | CID 280 - structure, chemical names, physical and chemical ... It is a one-carbon compound, a gas molecular entity and a carbon oxide. ... Physical and Thermodynamic Properties of Pure Chemicals Data Compilation. ... These actions are exploited clinically in the use of hyperventilation to diminish ...

Molecular Formula: CO2

PubChem CID: 280

Molecular Weight: 44.009 g/mol

Chemical Safety: Laboratory Chemical Safety

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Ibuprofen, an aspirin substitute, has a mass percent composition of 75.69% C, 8.80% H, and 15.51% O. Calculate its empirical for

Andreas93 [3]

Answer:

C₁₃H₁₈O₂

Explanation:

Empirical formula is the simplest ratio in moles of the elements presents in the compound. Assuming a basis of 100g, we need to convert the mass of each element to moles and, find the ratio of each of these:

<em>Moles C:</em>

75.69g * (1mol / 12.01g) = 6.3 moles of C

<em>Moles H:</em>

8.80g * (1mol / 1.01g) = 8.7 moles of H

<em>Moles O:</em>

15.51g * (1mol / 16g) = 0.97 moles of O

The ratio dividing in the moles of O -Because is the element with the lower amount of moles-:

C = 6.3mol / 0.97mol = 6.5

H = 8.7mol / 0.97mol = 9

O = 0.97mol / 0.97mol = 1

As the ratio must be in whole-numbers, multiplying in 2:

C = 13;

H = 18

O = 2

And empirical formula is:

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3 years ago

Using the data in the chart, which of the following would be a correct analysis?

Temka [501]

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Explanation: A plot illustrates that as x increases, y decreases - an inverse relationship.

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Which of the following can explain the daily change in sea level observed along a coast?

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3 years ago

An original sample of K-40 has a mass of 25.00 grams. After 3.9 m 109 years, 3.125 grams of the original sample remains unchange

Svetllana [295]

An original sample of K-40 has a mass of 25.00 grams. After 3.9 m 109 years, 3.125 grams of the original sample remains unchanged. What is the half-life of K-40?

First step is to determine the remaining decimal amount.

3.125 grams /25.00 grams = 0.125

Second step is to determine the number of half lives.

(1/2)^n = 0.125

N log (1/2) = log 0.125

N = 3 years

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4 years ago