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2 years ago

According to Henry’s Law, what causes a solute to absorb more gases into solution?

1 answer:

7 0

According to Henry's law, which was stated in the early 1800's by WIlliam Henry, is that the mass of a solute causes it to absorb more gases into a solution.

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The decomposition of dinitrogen pentoxide, N2O5, to NO2 and O2 is a first-order reaction. At 60°C, the rate constant is 2.8 × 10

Sati [7]

Answer:

a. 113 min

Explanation:

Considering the equilibrium:-

2N₂O₅ ⇔ 4NO₂ + O₂

At t = 0 125 kPa

At t = teq 125 - 2x 4x x

Thus, total pressure = 125 - 2x + 4x + x = 125 - 3x

125 - 3x = 176 kPa

x = 17 kPa

Remaining pressure of N₂O₅ = 125 - 2*17 kPa = 91 kPa

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

$[A_t]$ is the concentration at time t

$[A_0]$ is the initial concentration

Given that:

The rate constant, k = $2.8\times 10^{-3}$ min⁻¹

Initial concentration $[A_0]$ = 125 kPa

Final concentration $[A_t]$ = 91 kPa

Time = ?

Applying in the above equation, we get that:-

$91=125e^{-2.8\times 10^{-3}\times t}$

$125e^{-2.8\times \:10^{-3}t}=91$

$-2.8\times \:10^{-3}t=\ln \left(\frac{91}{125}\right)$

$t=113\ min$

3 0

2 years ago

"How does land change temperature compared to water?"

bogdanovich [222]

It’s A. Land heats up and cools quickly then water

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The secondary structure of a protein is distinct from the tertiary structure of a protein mainly because the secondary structure

mixer [17]

Answer:

False

Explanation:

The primary structure of a protein refer to the amino acid sequence. The secondary structure of a protein refer to the alpha helices, beta sheets and turns, while the tertiary structure refer to folding of the sheets due to hydrogen bonding or other bonding interaction between them.

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Why are reactions of ionic compounds very fast?

galina1969 [7]

Ionic compounds in solution react faster than molecular compounds. This is because Ionic compounds break apart to form free ions. Therefore, there are no bonds to break so the reaction is fast

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Draw the dot structure of CX4

hichkok12 [17]

Refer to the attachment

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