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4 years ago

Which of these expressions are correct variations of the combined gas law?

Chemistry

2 answers:

Firdavs [7]4 years ago

4 0

Answer:

Both p2=p1(t2/t1)(v1/v2) and p1v1t2=p2v2t1

Explanation:

victus00 [196]4 years ago

3 0

The combines law of gas is:

P1 * V1 P2 * V2
---------- = -----------
T1 T2

So, you can obtain many equivalent valid forms depending on the variable that you solve for.

These are some examples:

Solve for T1:

T1 = T2 * (P1 * V1) / (P2 * V2)

Solve for V2:

V2 = V1 * (T2 / T1) * (P1 / P2)

Solve for P1:

P1 = P2 * (T1 / T2) * ( V2 / V1)

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3 years ago

The individual particles in an ionic solid are held together as a result of:

dlinn [17]

electrostatic force

Explanation:

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2 years ago

15. What volume of CCI, (d = 1.6 g/cc) contain

anastassius [24]

Answer:

$\boxed{\text{(3) 9.6 L}}$

Explanation:

1. Moles of CCl₄

$n = 6.02 \times 10^{25} \text{ molecules} \times \dfrac{\text{1 mol}}{6.022 \times 10^{23}\text{ molecules}} = \text{100.0 mol}$

2. Molar mass of CCl₄

MM = 1 × 12.01 + 4 × 35.5 = 12.01 + 142 = 154.0 g/mol

3. Mass of CCl₄

$m =\text{100.0 mol} \times \dfrac{\text{154.0 g}}{\text{1 mol}} = \text{15 400 g}$

4. Volume of CCl₄

$V = \text{15 400 g} \times \dfrac{\text{1 cm}^{3}}{\text{1.6 g}} = \text{9600 cm}^{3}\\\\V = \text{9600 cm}^{3} \times \dfrac{\text{1 L}}{\text{1000 cm}^{3}} = \mathbf{{9.6 L}}\\\\\text{The volume of CCl$_{4}$ is } \boxed{\textbf{9.6 L}}$

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3 years ago

An experiment was designed to test the hypothesis that peanuts have more energy than a chip. The experiment determines calorimet

Svet_ta [14]

Answer:

b Different amounts of food samples were used.

Explanation:

The mass of the two samples needs to be the same in order for the test to be accurate.

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1 year ago

In a titration, the point at which one drop of base turns the acid indicator a pink color that lasts for 30 seconds is called th

xxTIMURxx [149]

The point at which one drop of base turns the acid indicator into a pink color that lasts for thirty seconds in doing titration is called the end point or the equivalence point.

End point or the equivalence point is the one responsible for the pink color that lasts for thirty seconds.

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3 years ago