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lara31 [8.8K]
2 years ago
13

What is the volume mL of 2 degree celsius?

Chemistry
1 answer:
Anestetic [448]2 years ago
7 0

Answer:

Question not very specific, but here is an answer you might be looking for. Density of object at 2 degrees C, 0.99997 g/mL. Hope it IS the answer you are looking for!

Explanation:

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In an aqueous solution of a certain acid the acid is 4.4% dissociated and the pH is 3.03. Calculate the acid dissociation consta
NeX [460]

Answer:

4.1x10⁻⁵

Explanation:

The dissociation of an acid is a reversible reaction, and, because of that, it has an equilibrium constant, Ka. For a generic acid (HA), the dissociation happens by:

HA ⇄ H⁺ + A⁻

So, if x moles of the acid dissociates, x moles of H⁺ and x moles of A⁻ is formed. the percent of dissociation of the acid is:

% = (dissociated/total)*100%

4.4% = (x/[HA])*100%

But x = [A⁻], so:

[A⁻]/[HA] = 0.044

The pH of the acid can be calcualted by the Handersson-Halsebach equation:

pH = pKa + log[A⁻]/[HA]

3.03 = pKa + log 0.044

pKa = 3.03 - log 0.044

pKa = 4.39

pKa = -logKa

logKa = -pKa

Ka = 10^{-pKa}

Ka = 10^{-4.39}

Ka = 4.1x10⁻⁵

4 0
3 years ago
The crust of earth may include........... A- continets and ocean floors. B-continents only. C-layers of sedimentary Rocks and co
Inessa [10]
D all of the above because it has all of them at the crust
7 0
3 years ago
What is the pH of a 2.58 x 10^-6 M solution of an acid?
laila [671]

Answer:

<h2>5.59 </h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

ph =  -  log(2.58 \times  {10}^{ - 6} )  \\  = 5.58838

We have the final answer as

<h3>5.59</h3>

Hope this helps you

7 0
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Ndicate the kinds of intermolecular forces that would occur between the toluene and hexane:
allsm [11]
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3 years ago
What does the outer ear do?
Lina20 [59]
The outer ear is responsible in carrying sound waves to the the tympanic membrane aka the eardrum, which vibrates when sound waves hit it.
8 0
3 years ago
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