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Studentka2010 [4]
3 years ago
7

+|++that this atom is neutral? ​

Chemistry
2 answers:
Svet_ta [14]3 years ago
6 0

Answer:

I think yes....

Explanation:

I think yes

3241004551 [841]3 years ago
3 0
Yes that looks right to me
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An unknown solid acid has a formula h2x. How could you determine the molar mass of the unknown acid for a titration with 0.455 m
Goshia [24]

Answer:

The answer is in the explanation.

Explanation:

A titration of H₂X with KOH produce:

H₂X + 2KOH → 2H₂O + K₂X

It is possible to obtain the moles of H₂X because the moles of KOH are the spent volume of the titration in liters × 0,455M. As for a complete titration of H₂X moles you need twice moles of KOH you know the moles of KOH obtained are half H₂X moles.

As you know the mass of the solid acid that you titrate and molar mass of acid is:

mass of acid / moles of acid. You can determine the molar mass of the unknown acid.

I hope it helps!

3 0
3 years ago
If 6 moles of sugar was added to a kilogram of water, the new boiling point would be _____ degrees C.
Andru [333]
Using the equation for boiling point elevation Δt
     Δt = i Kb m 
we can find the new boiling point T for the solution:
     Δt = T - 100∘C 
since we know that pure water boils at 100 °C.

We know that the van't Hoff Factor i is equal to 1 because sugar does not dissociate in water.

Also, the value of Ebullioscopic constant Kb for water is listed as 0.512 °C·kg/mol.

The molality m of the solution of 6 moles of sugar dissolved in a kilogram of water can be calculated as 
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         = 6 mol/kg

Therefore the new boiling point T would be
     T - 100 °C = i Kb m 
     T = i Kb m + 100 °C.
        = (1) (0.512 °C·kg/mol) (6 mol/kg) + 100 °C
        = 3.072 °C + 100 °C 
        = 103.072 °C
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3 years ago
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2 years ago
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3 years ago
Alkynes undergo many of the same reactions that alkenes do.<br><br> a. True<br> b. False
Sophie [7]

Answer:

true

Explanation:

5 0
2 years ago
Read 2 more answers
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