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Tutor profile: Mallory A.

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Mallory A.
Optometry student with a Bachelor of Science in chemistry
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Questions

Subject: Organic Chemistry

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Question:

What type of carbocation is the most stable?

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Mallory A.
Answer:

Answer: tertiary Tertiary carbocations are more stable than secondary ones due to an effect known as hyperconjugation. A neighboring C-H bond can donate some of its electron density into the vacant p-orbital of a carbocation thus making it more stable than other types of carbocations.

Subject: Chemistry

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Question:

What would the VSEPR geometry of methane be?

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Mallory A.
Answer:

Methane's chemical formula is CH4. CH4 has four atoms that surround the central atom and zero lone pairs of electrons. Therefore, the shape of methane will be tetrahedral. Answer: tetrahedral

Subject: Basic Chemistry

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Question:

30 mL of 1.00 M NaOH is needed to titrate 60 mL of an HCl solution. At the equivalence point, what is the concentration of HCl?

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Mallory A.
Answer:

Answer: 0.5 M NaOH and HCl are, respectively, a strong base and a strong acid. Therefore, M1V1=M2V2 can be used to calculate the molarity of HCl. M(acid)V(acid) = M(base)V(base) M(acid) * 60 mL = 1.00 M * 30 mL M(acid) = 0.5 M

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