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Zepler [3.9K]
2 years ago
12

A gas has an initial pressure of 120 kPa, a volume of 23 liters, and a temperature of 20°C. If the pressure is raised to 150 kPa

the new volume is 17 liters, what is the new temperature of the gas? 0 0.003 K 0 270.7 K O 18.4K O 100 K​
Chemistry
1 answer:
ladessa [460]2 years ago
7 0

Answer:

virgil Cassidy n.v

Christian doctorbbn nnn

Explanation:

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Anything in red is the question
laila [671]

Answer:

  • Question 19: the three are molecular compounds.
  • Question 20: CuSO₄.5H₂O

Explanation:

<em>Question 19.</em>

  • C₂H₄
  • HF
  • H₂O₂

All of them are the combination of two kinds of different atoms in fixed proportions.

  • C₂H₄: two carbon atoms per four hydrogen atoms
  • HF: one hydrogen atom per one fluorine atom
  • H₂O₂: two hydrogen atoms per two oxygent atoms

Thus, they all meet the definition of compund: a pure substance formed by  two or more different elements with a definite composition.

Molecular compounds are formed by covalent bonds and ionic compounds are formed by ionic bonds.

Two non-metal elements, like H-F, C - C, C - H, H-O, H - H, and O - O will share electrons forming covalent bonds to complete their valence shell. Thus, the three compounds are molecular and not ionic.

<em>Question 20. </em>Formula of copper(II) sulfate hydrate with 36.0% water.

Copper(II) sulfate is CuSO₄. Its molar mass is 159.609g/mol

Water is H₂O. Its molar mass is 18.015g/mol

Calling x the number of water molecules in the hydrate, the percentage of water is:

       \dfrac{18.015x}{18.015x+159.609}=36\%\\ \\ \\ \dfrac{18.015x}{18.015x+159.609}=0.36

From which we can solve for x:

      18.015x=6.4854x+57.45924\\ \\ 11.5296x=57.45924\\ \\ x\approx4.98\approx5

Thus, there are 5 molecules of water per each unit of CuSO₄, and the formula is:

  • CuSO₄.5H₂O
4 0
3 years ago
Osmosis is the passage of water molecules through a semi-permeable membrane from a solution of ________ concentration to _______
grandymaker [24]

Osmosis is the passage of water molecules through a semi-permeable membrane from a solution of ___lower_____ concentration to ___higher_____ concentration.

3 0
2 years ago
Which climate condition will cause the fastest chemical weathering of granite sandstone and shale
Naily [24]

Answer:

1. Tropical Climate

Explanation:

Due to the high heat in tropical climates, the moisture speeds up chemical weathering

6 0
2 years ago
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Which total mass of iron is necessary to produce 1.00 mole of copper?
Harman [31]
1 mole Fe produces 1 mole Cu 
<span> molar mass of Fe is 55.8 g / mole 
 
answer: </span><span>55.8g</span>
4 0
3 years ago
the smell spreads immediately after you burn agarbatti in this example what is your condition about intermolecular force
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Intermolecular force for solids is high. Whereas low in gases. The smell of agarbatti spreads immediately because the molecules of air diffuses very fastly.
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