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juin [17]
3 years ago
10

A cylindrical glass tube 10.3 cm in length is filled with mercury (density = 13.6 g/mL). (The volume of a

Chemistry
1 answer:
PolarNik [594]3 years ago
6 0

Answer:

0.982 cm

Explanation:

Given data:

Density= 13.6 g/mL

mass= 106.3 g

volume = ?

Formula:

d=m/v

v= m/d

v= 106.3 g/ 13.6 g/mL

v= 7.816 mL

Now we have to find the radius of tube:

Formula:

V= πr²h

v= 7.816 ml

π= 22/7 = 3.14

h= 10.3 cm

now we will put the values in formula:

V= πr²h

7.816 mL= 3.14× r² × 10.3 cm

7.816/ 32.342 = r²

r² = 0.242 mL/cm

r= 0.491 cm

Formula for diameter is given below:

diameter= 2× radius

diameter= 2× 0.491 cm

diameter= 0.982 cm

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Volume of the gas is 525 L.

<u>Explanation:</u>

It is given that the volume of the gas divided by the temperature is 1.75.

V/T = 1.75

As per the Charles law, volume is proportional to the temperature.

V ∝ T

V/T = constant

Now we have to find V, and T is given as 300 K.

So plugin the values as,

V/300 = 1.75

Rearranging the equation to get V as,

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3 0
3 years ago
To dissolve one substance in another, thus forming a solution, three things must occur: The forces holding solute particles toge
aniked [119]

To dissolve one substance, attractions between solute and solvent particles must be formed, steps involved are:

<h3><u>Formation of a solution:</u></h3>
  • A physical process, not a chemical one, takes place when a solute and a solvent combine to produce a solution.
  • In other words, by applying the right separation techniques, both the solute and the solvent may be recovered in chemically unaltered forms.
  • It is claimed that two substances are entirely miscible when they combine to create a single homogenous phase in all ratios. Water and ethanol mix well, much like different gas combinations do.
  • When two substances, like oil and water, are fundamentally insoluble in one another, they are said to be immiscible.
  • We have already talked about several examples of gaseous solutions, such as the atmosphere of Earth.
  • Thus, a system that has two or more compounds homogeneously (in a single phase) dissolved in it is called a solution. It is the homogenous mixture formed when a solute dissolves in a solvent.

To know more about solutions, refer to:

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4 0
2 years ago
can someone help and lmk if my answers are correct i don’t think they are please help i’ll give brainliest thank you
Dafna11 [192]

Answer:

5=C, every action has an equal or opposite reaction,

6=B, since it has less air drag and more force exerted on it

7= You're correct

5 0
3 years ago
Which is associated with a fission reaction? *
podryga [215]

Answer: Radioactive waste

Explanation:

The nuclear fission reaction consists of heavy atomic particles or heavy nucleus, like plutonium and uranium and in radioactive heavy metals. In the fission reaction the nucleus get split into equal masses of particles. This process is associated with release of large amount of energy. The fission of radioactive waste can cause deadly mutations in living beings.      

6 0
3 years ago
6 Calculate the number of molecules in 8 g of oxygen.
Mariana [72]

Answer:

If you mean the number of atoms in 8g of oxygen, it's 3.011 x 10^23 atoms.

Explanation:

Convert the grams to moles. 8 grams of oxygen is 0.5 moles. Then multiply the number of moles by Avogadro's number: 6.022 x 10^23.

3 0
3 years ago
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