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2 years ago

Which of the following would have the largest amount of mass?

Chemistry

2 answers:

Elodia [21]2 years ago

7 0

Answer:

1 kg

Explanation:

prefix nano means 10^-9

kilo 10^3

mili 10^-3

centi 10^-2

the largest amount is 1 kg

dedylja [7]2 years ago

3 0

The correct answer is B. 1 kilogram (kg)

Explanation:

Mass refers to the amount of matter that can be found in an object or body, this property can be measured using different units such as grams, kilograms, decagrams, centigrams, etc. although each of this, measures different amounts of mass. In this way, the kilogram (kg) is the most common unit used for mass and the largest from the options presented, as a nanogram is equivalent to $10^{-12}$ kilograms, a milligram is equivalent to $10^{-6}$ kilograms and a centigram is equivalent to $10^{-5}$ kilograms, which means all nanograms, milligrams, and centigrams are smaller units than kilograms.

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a closed flask of air (0.250 L) contains 5.00 "puffs" of particles. The pressure probe on the flask reads 93 kPa. A student uses

Sergio039 [100]

Answer: New pressure inside the flask would be 148.8 kPa.

Explanation: The combined gas law equation is given by:

$PV=nRT$

As the flask is a closed flask, so the volume remains constant. Temperature is constant also.

So, the relation between pressure and number of moles becomes

$P=n\\or\\\frac{P}{n}=constant$

$\frac{P_1}{n_1}=\frac{P_2}{n_2}$

Initial conditions:

$P_1=93kPa\\n_1=5\text{ puffs}$

Final conditions: When additional 3 puffs of air is added

$P_2=?kPa\\n_2=8\text{ puffs}$

Putting the values, in above equation, we get

$\frac{93}{5}=\frac{P_2}{8}\\P_2=148.8kPa$

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2 years ago

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aivan3 [116]

Answer:

Explanation:

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10. Summarize the effect of hydrogen bonding on boiling point.

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Answer:

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