General Chemistry 10/11

A sample of the male sex hormone testosterone,C19H28O2, contains 3.88 * 10^21 hydrogen atoms.

A sample of the male sex hormone testosterone,C19H28O2, contains 3.88 * 10^21 hydrogen atoms. (a) How many atoms of carbon does it...

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How To Name Acids

How To Name Acids An acid is a substance that releases H+ ions (hydrogen ions) when it is dissolved in water. Acids can be divided into 2...

How to convert moles into mass (grams)?

How to convert moles into mass? To convert moles into mass, we first need to find the molar mass of the compound given. This can be done...

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How do we know if the reaction is spontaneous?

What does it mean for a reaction to be spontaneous? It means that the reaction will occur on its own, without any outside energy input...

How to calculate pH of the weak acid.

When we are asked to find pH, the first thing we need to recognize is whether we are dealing with acid or base? Also we need to...

State the general trend in first ionization energy as the elements in Period 3 are considered from l

First ionization energy is the amount of energy needed to take first electron from an atom. The trend for ionization energy is that it...

Equivalence point on titration curves.

Titration is a laboratory procedure where a known base is added to unknown acid (or vise versa) to figure out the molarity of the...

How do intermolecular forces affect vapor pressure?

What is vapor pressure? The simple way to understand it, is to realize that pressure is caused by gas (in our case vapor). The more gas...

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Identify a Brønsted-Lowry conjugate acid-base pair in the reaction.

CH3CH2COOH(aq) + H2O(l) ---> CH3CH2COO−(aq) + H3O+(aq) The key to idenitifying Bronsted-Lowry acid-base pair and realizing that acid and...

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Which of the following is an electrolyte?

Which of the following is an electrolyte? a. NaCl (s) b. H2O c. CCl4 d. NaCl (aq) An electrolyte is a substance that is capable of...

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