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Shiela Obreu

Shiela O.

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Write line-angle formulas for these alkanes and cycloalkanes. (a) $2,2,4-$ Trimethylhexane (b) 2,2 -Dimethylpropane (c) 3-Ethyl-2,4,5-trimethyloctane (d) 5 -Butyl- 2,2 -dimethylnonane (e) 4 -Isopropyloctane (f) 3,3 -Dimethylpentane (g) $t r a n s-1,3-$ Dimethylcyclopentane (h) $c i s-1,2$ -Diethylcyclobutane

Write line-angle formulas for these alkanes and cycloalkanes. (a) $2,2,4-$ Trimethylhexane (b) 2,2 -Dimethylpropane (c) 3-Ethyl-2,4,5-trimethyloctane (d) 5 -Butyl- 2,2 -dimethylnonane (e) 4 -Isopropyloctane (f) 3,3 -Dimethylpentane (g) $t r a n s-1,3-$ Dimethylcyclopentane (h) $c i s-1,2$ -Diethylcyclobutane

Introduction to General, Organic and Biochemistry

The odor of fish is due primarily to amines, especially methylamine $\left(\mathrm{CH}_{3} \mathrm{NH}_{2}\right)$. Fish is often served with a wedge of lemon, which contains citric acid. The amine and the acid react forming a product with no odor, thereby making the lessthan-fresh fish more appetizing. Using data from Appendix $D$, calculate the equilibrium constant for the reaction of citric acid with methylamine, if only the first proton of the citric acid $\left(K_{a 1}\right)$ is important in the neutralization reaction.

The odor of fish is due primarily to amines, especially methylamine $\left(\mathrm{CH}_{3} \mathrm{NH}_{2}\right)$. Fish is often served with a wedge of lemon, which contains citric acid. The amine and the acid react forming a product with no odor, thereby making the lessthan-fresh fish more appetizing. Using data from Appendix $D$, calculate the equilibrium constant for the reaction of citric acid with methylamine, if only the first proton of the citric acid $\left(K_{a 1}\right)$ is important in the neutralization reaction.

Chemistry The Central Science

In 1986 an electrical power plant in Taylorsville, Georgia, burned $8,376,726$ tons of coal, a national record at that time. (a) Assuming that the coal was 83$\%$ carbon and 2.5$\%$ sulfur and that combustion was complete, calculate the number of tons of carbon dioxide and sulfur dioxide produced by the plant during the year. (b) If 55$\%$ of the SO $_{2}$ could be removed by reaction with powdered CaO to form $\mathrm{CaSO}_{3},$ how many tons of $\mathrm{CaSO}_{3}$ would be produced?

In 1986 an electrical power plant in Taylorsville, Georgia, burned $8,376,726$ tons of coal, a national record at that time. (a) Assuming that the coal was 83$\%$ carbon and 2.5$\%$ sulfur and that combustion was complete, calculate the number of tons of carbon dioxide and sulfur dioxide produced by the plant during the year. (b) If 55$\%$ of the SO $_{2}$ could be removed by reaction with powdered CaO to form $\mathrm{CaSO}_{3},$ how many tons of $\mathrm{CaSO}_{3}$ would be produced?

Chemistry The Central Science

Which of the following diagrams best represents an aque- ous solution of NaF? (For clarity, the water molecules are not shown.) Will this solution be acidic, neutral, or basic? [Section 16.9]

Which of the following diagrams best represents an aque- ous solution of NaF? (For clarity, the water molecules are not shown.) Will this solution be acidic, neutral, or basic? [Section 16.9]

Chemistry The Central Science

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ephedrine a central nervous system stimulant

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