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3 years ago

6

Chemistry

1 answer:

Xelga [282]3 years ago

3 0

Answer:

Used to make animal Feed

Explanation:

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For a given compound, list the decreasing order of entropy for a liquid, solid, and gas.

Svetradugi [14.3K]

Answer:

B. gas>liquid>solid

Explanation:

Entropy increases with increase in randomness,in gas randomness is higher than in liquid than in solid!

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3 0

2 years ago

An empty vial weighs 55.32 g.

ziro4ka [17]

The answer is: Volume of mercury = 9.63 $cm^3$ .

Density (d) is defined as mass of substance divided by its volume. Thus, if mass and density are known, then Volume can be determined.

What is the formula of volume in terms of density?

Let mass of substance be 'm' and volume be 'V'. Thus, as per the definition of density, it is expressed as-

$d =\frac{m}{V}$

Thus, volume can be expressed as-

$V = \frac{m}{d}$

Now, mass of empty vial= 55.32 g and the mass of (vial+ mercury) = 185.56 g.

Thus, mass of mercury = $185.56\ g- 55.32\g = 130.24\ g$

Thus, mass of mercury = 130.24 g and density of mercury = $13.53\ g/cm^3$ . Its volume is calculated as-

$V =\frac{130.24\ g}{13.53\ g/cm^3} = 9.63\ cm^3$

Hence, volume of mercury = 9.63 $cm^3$ .

To learn more about Density and Volume, visit:

brainly.com/question/1028144

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7 0

1 year ago

Refer to the balanced equation. (PLEASE HELP QUICK)

kolezko [41]

Answer: C) $5.12\times 10^1$ L $Cl_2$

Explanation: $8H_2S+8Cl_2\rightarrow S_8+16HCl$

According to Avogadro's law, 1 mole of every gas occupies 22.4 Liters at STP.

Thus from the balanced chemical equation, 8 moles of hydrogen sulfide reacts with 8 moles of chlorine gas.

i.e 8 moles of hydrogen sulfide reacts with $=8\times 22.4L=179.2L$ of chlorine gas.

2.28 moles of hydrogen sulfide reacts with $=\frac{179.2}{8}\times 2.28=51.2L=5.12\times 10^1L$ of chlorine gas.

6 0

3 years ago

Which of the following is an example of an insoluble substance being added to water?

Leni [432]

Answer:

Explanation: “Insoluble” generally means that a substance does not dissolve in water. Some examples include: sand, fats, wood, metals, and plastic. When we put them in water and try to mix them, they will not dissolve.

Explanation:

5 0

2 years ago

Acetic acid (HC2H3O2, Ka=1.8x10^-5) is a weak acid. Calculate the pH of an aqueous solution of .25M acetic acid.

tensa zangetsu [6.8K]

Answer: The pH of an aqueous solution of .25M acetic acid is 2.7

Explanation:

$HC_2H_3O_2\rightarrow H^+C_2H_3O_2^-$