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3 years ago

What is temperature?

Chemistry

2 answers:

Mashutka [201]3 years ago

7 0

Answer: temperature is a measure of the average kinetic energy of the particles in an object

Explanation:

Andrew [12]3 years ago

3 0

Answer:

Temperature is the degree of hotness or coldness of a place or a body. Heat Energy is the form of energy

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Identify the element: 6 energy level, metallic, 82 election

Lady bird [3.3K]

Answer:-

Name of element = Lead

Symbol ♾ of Lead = Pb

Atomic no. = 82

Atomic mass = 207.2 amu

No. of protons = 82

No. of electrons = 82

Yes, lead(Pb) is a metallic element and certainly it has 6 electron shells which means 6 energy level.

If you find anything unclear you can ask me...

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3 years ago

a swimming-pool worker wants the pools pH to be 7.2. She comes by to test the water and finds that the pH is 6.2. What should sh

nikdorinn [45]

Add an alkaline compound to raise the pH to 7.2.

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3 years ago

I WILL GIVE 50 POINTS AND BRAINLIEST What is the volume of 41.2g argon at stp???

iragen [17]

Answer:

1645.86

Explanation:

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3 years ago

atomic size of element increasing with increasing in number of shell in the third period of periodic table name the smallest ele

Mars2501 [29]

Answer:

Argon (Ar) is smallest element in 3rd period in periodic table.

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4 years ago

A mixture of gases is analyzed and found to have the following composition in mol %: CO2 12.0 CO 6.0 CH4 27.3 H2 9.9 N2 44.8 a)

vichka [17]

Answer:

a) CO₂: 21,9%; CO: 7,0%; CH₄: 18,2%; H₂: 0,8%; N₂: 52,1%

b) 24,09 g/mol

Explanation:

a) It is posible to obtain the composition of the gas mixture in weight% using molecular mass of each compound, thus:

12% CO₂× $\frac{44,01g}{1mol}$ = 528,1 g

6% CO× $\frac{28,01g}{1mol}$ = 168,1 g

27,3% CH₄× $\frac{16,05g}{1mol}$ = 438,2 g

9,9% H₂× $\frac{2,02g}{1mol}$ = 20,0 g

44,8% N₂× $\frac{28g}{1mol}$ = 1254,4 g

The total mass of the gas mixture is:

528,1g + 168,1g + 438,2g + 20,0g + 1254,4g = 2408,8 g

Thus composition of the gas mixture in weight% is:

CO₂: $\frac{528,1g}{2408,8g}$ ×100 = 21,9%

CO: $\frac{168,1g}{2408,8g}$ ×100 = 7,0%

CH₄: $\frac{438,2g}{2408,8g}$ ×100 = 18,2%

H₂: $\frac{20,0g}{2408,8g}$ ×100 = 0,8%

N₂: $\frac{1254,4g}{2408,8g}$ ×100 = 52,1%

b) The average molecular weight of the gas mixture is determined with mole % composition, thus:

0,12×44,01g/mol + 0,06×28,01g/mol + 0,273×16,05g/mol + 0,099×2,02g/mol + 0,448×28g/mol = 24,09 g/mol

I hope it helps!

6 0

3 years ago