Tutor profile: Doan B.

Doan B.

Tutor hoping to inspire students to learn

Bio Questions

Questions

Subject: Organic Chemistry

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Question:

Identifying if a compound is symmetrical with plane of symmetry.

Doan B.

Answer:

If you take a piece of paper and pretend to cut the molecule with it Is the resulting two pieces identical? If they are, then the molecule is symmetrical.

Subject: German

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Question:

Geben Sie ein Beispiel mit einem Dativ Verb.

Doan B.

Answer:

Helfen ist ein Dativ Verb, z.B. Meine Mutti hilft mir mit meinen Hausaufgaben.

Subject: Basic Chemistry

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Question:

What is the pH of a solution with a concentration of 0.00618 M?

Doan B.

Answer:

__Step 1__: Read the problem and establish which quantities you are converting between. We are given the hydronium ion concentration and asked to find the pH. __Step 2__: Apply the pH formula to convert. Substitute the given hydronium ion concentration into the formula and compute. [{ MathJax fullWidth='true' pH=-Log_{10}\left [H3O \right ]^+ }] [{MathJax fullWidth='true' pH=-Log_{10}\left [0.00618\right ] = 2.21 }]

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