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SVEN [57.7K]
3 years ago
6

A syringe containing 1.50 mL of oxygen gas is cooled from 99.8 ∘C to 0.4 ∘C. What is the final volume Vf of oxygen gas?

Chemistry
1 answer:
Butoxors [25]3 years ago
5 0

Answer:

.02

Explanation:

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A water treatment plant applies chlorine for disinfection so that 10 mg/L chlorine is achieved immediately after mixing. The vol
Vlada [557]

<u>Answer:</u> The mass of chlorine needed by the plant per day is 9.4625\times 10^8mg

<u>Explanation:</u>

We are given:

Volume o water treated per day = 25,000,000 gallons

Converting this volume from gallons to liters, we use the conversion factor:

1 gallon = 3.785 L

So, \frac{3.785L}{1\text{ gallon}}\times 25,000,000\text{ gallons}=9.4625\times 10^7L

Amount of chlorine applied for disinfection = 10 mg/L

Applying unitary method:

For 1 L of water, the amount of chlorine applied is 10 mg

So, for 9.4625\times 10^7L of water, the amount of chlorine applied will be \frac{10mg}{1L\times 9.4625\times 10^7L}=9.4625\times 10^8mg

Hence, the mass of chlorine needed by the plant per day is 9.4625\times 10^8mg

6 0
3 years ago
Which of the examples is potassium?<br>es )<br>A)<br>B)<br>B<br>C)​
Nikitich [7]

Answer:

examples of things which contain potassium are:

green vegetables

root vegetables

fruits

potassium chloride

potassium sulphate

Explanation:

if you need a specific answer please send the options

7 0
3 years ago
Thermal energy is caused by the motion of?
Katarina [22]
Caused my motion energy or body heat when you move.
7 0
3 years ago
Read 2 more answers
Electrolysis of molten lead bromide is carried out.
bearhunter [10]

Answer:

Read Below

Explanation:

Electrolysis is not possible with solid lead (II) bromide. This is because the ions are held in a three-dimensional lattice, unable to move freely to the electrodes. Melting enables the ions to become mobile and to travel to the respective electrodes.

The bulb won't glow when the electrodes are embedded in solid lead bromide.  The bulb will glow when the material surrounding the electrodes is molten lead bromide. When an ionic compound is in the molten (liquid) form the positive and negative ions are free to move around.

Hopes this Helps :D

Brainiest Please

5 0
2 years ago
It is the balance between thermal energy and intermolecular forces that determines the state of matter of any substance at room
ExtremeBDS [4]

Answer:

The correct option is;

2) Thermal energy increases by a factor of R

Explanation:

The equipartition energy theorem states that when molecules are in a state of thermal equilibrium, particles within the system posses equal average energy with each degree of freedom which can be known as energy due to a state of having a particular temperature or thermal energy given by the relation

E_{th} = Kinetic energy of translation + Kinetic energy of rotation + Energy of vibration

For a mono-atomic gas, E_{th} = 3/2·n·R·T

For a diatomic gas, E_{th} = 5/2·n·R·T

For a solid element, E_{th} = 3·n·R·T

Therefore, as the temperature is doubled, the thermal energy increases by a factor of R.

5 0
3 years ago
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