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3 years ago

BRAINLIEST IF ANSWERED IN THE NEXT 5M

Chemistry

1 answer:

belka [17]3 years ago

5 0

(NH₄)₂CO₃ → 2NH₄⁺ + CO₃²⁻
k=2 k=1

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What type of compound does the formula CuCl2 represent?<br> A) ionic salt<br> B) covalent molecule

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Answer: A) ionic salt

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4 years ago

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in the reaction between 15.0 moles of lead (ii) oxide and 2.00 moles of sulphur, how many moles of each product will form

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I know this is supposed to be an answer but i needed help with this one too

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3 years ago

What is the heat of vaporization of ethanol, given that ethanol has a normal boiling point of 63.5°C and the vapor pressure of e

Serjik [45]

Explanation:

According to Clausius-Claperyon equation,

$ln (\frac{P_{2}}{P_{1}}) = \frac{-\text{heat of vaporization}}{R} \times [\frac{1}{T_{2}} - \frac{1}{T_{1}}]$

The given data is as follows.

$T_{1} = 63.5^{o}C$ = (63.5 + 273) K

= 336.6 K

$T_{2} = 78^{o}C$ = (78 + 273) K

= 351 K

$P_{1}$ = 1 atm, $P_{2}$ = ?

Putting the given values into the above equation as follows.

$ln (\frac{P_{2}}{P_{1}}) = \frac{-\text{heat of vaporization}}{R} \times [\frac{1}{T_{2}} - \frac{1}{T_{1}}]$

$ln (\frac{1.75 atm}{1 atm}) = \frac{-\text{heat of vaporization}}{8.314 J/mol K} \times [\frac{1}{351 K} - \frac{1}{336.6 K}]$

$\Delta H$ = $\frac{0.559}{1.466 \times 10^{-4}} J/mol$

= $0.38131 \times 10^{4} J/mol$

= 3813.1 J/mol

Thus, we can conclude that the heat of vaporization of ethanol is 3813.1 J/mol.

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4 years ago

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Answer:

Wavelength is the distance from one crest to another, or from one trough to another, of a wave (which may be an electromagnetic wave, a sound wave, or any other wave). Crest is the highest point of the wave whereas the trough is the lowest.

Explanation:

Hope this helps!

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Write a word equation for the extraction of tin from tin oxide using carbon

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SnO2 + 2C => Sn + 2CO

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