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bija089 [108]
3 years ago
11

Non-polar covalent compounds can dissolve _______. A. polar covalent compounds B. ionic compounds C. non-polar covalent compound

s D. All of the Above E. None of the Above
Chemistry
1 answer:
Nat2105 [25]3 years ago
3 0

Answer:non-polar covalent compounds

Explanation:

In chemistry, like compounds interact. If a solvent is covalent and nonpolar, it will also dissolve nonpolar covalent compounds. This is because, they contain similar patterns of intermolecular interaction. Hence compounds that posses the same kind of intermolecular interaction can form a solution.

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If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg
Andrei [34K]

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

3 0
3 years ago
How does a sedimentary rock turn into a metamorphic rock?
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3 years ago
Suppose that a catalyst lowers the activation barrier of a reaction from 125kJ/mol to 55kJ/mol125⁢kJ/mol to 55kJ/mol. By what fa
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Answer:

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Explanation:

Using arrhenius formula:

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Thus, replacing for an activation energy of 125 kJ/mol assuming A as 1:

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When activation energy is 55kJ/mol:

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Thus, the factor of increasing reaction rate is:

2,31x10⁻¹⁰/1,25x10⁻²² =<em> 1,85x10¹²</em>

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I hope it helps!

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Answer:

D = m/v.

Explanation:

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