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poizon [28]
3 years ago
10

A gas sample has volume 3.00 dm3 at 101

Chemistry
1 answer:
vivado [14]3 years ago
4 0

Answer:

21.3dm³

Explanation:

Given parameters:

Initial volume of gas = 3dm³

Initial pressure  = 101kPa

Final pressure  = 14.2kPa

Unknown

Final volume  = ?

Solution:

To solve this problem, we use the Boyle's law which states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

Mathematically;

                P₁ V₁  = P₂ V₂

P and V are pressure and Volume

1 and 2 are the initial and final states

Now insert the parameters and solve;

         101 x 3 = 14.2 x V₂  

                  V₂  = 21.3dm³

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<u>Answer:</u> The molarity of solution is 1.0388\times 10^{-10}M

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

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We are given:

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Putting values in above equation, we get:

\text{Molarity of solution}=\frac{0.000,000,0342g}{329.21g/mol\times 1L}\\\\\text{Molarity of solution}=1.0388\times 10^{-10}M

Hence, the molarity of solution is 1.0388\times 10^{-10}M

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Answer:

8.3334%

Explanation:

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What is the mass of an atom that has 9 protons, 11 neutrons, and 10 electrons
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The correct answer is option c)  has been heavily tested through repeated experimentation

Explanation:

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In other words, a scientific theory is the approach of a hypothetical-deductive system that constitutes a scientific explanation or description to a related set of observations or experiments. It is based on hypotheses or assumptions verified by groups of scientists and generally covers several scientific laws. These laws become part of the basic assumptions and hypotheses of the theory that will encompass the knowledge accepted by the scientific community.

So, a theory is a set of rules that describe the behavior of a particular system and a particular rule that is present in all known theories and is therefore considered "universally applicable."

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So, the correct answer is option c)

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