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gayaneshka [121]
3 years ago
7

What is the molar concentration of K+ in a solution that contains

Chemistry
1 answer:
Tresset [83]3 years ago
6 0

Answer:

0.000577 Mol/L

Explanation:

We know that;

ppm = moles/L * molar mass * 1000

It then follows that;

moles/L = ppm/molar mass  * 1000

ppm concentration = 63.3 ppm

molar mass = 329.3 g/mol

moles/L = 63.3 ppm/329.3 g/mol * 1000 * 3 moles of K^+

moles/L = 0.000577 Mol/L

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Enter your answer in the provided box. The partial pressure of CO2 gas above the liquid in a bottle of champagne at 20°C is 4.5
sineoko [7]

<u>Answer:</u> The molar solubility of carbon dioxide gas is 0.17 M

<u>Explanation:</u>

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

C_{CO_2}=K_H\times p_{liquid}

where,

K_H = Henry's constant = 3.7\times 10^{-2}mol/L.atm

p_{CO_2} = partial pressure of carbonated drink = 4.5 atm

Putting values in above equation, we get:

C_{CO_2}=3.7\times 10^{-2}mol/L.atm\times 4.5atm\\\\C_{CO_2}=0.17mol/L=0.17M

Hence, the molar solubility of carbon dioxide gas is 0.17 M

6 0
3 years ago
Give an example of a 2 phase mixture and describe how you would separate the substances
Monica [59]
<span><u><em>First, we should define what a mixture and a two-phase mixture mean.</em></u>
<u><em>A mixture</em></u> is a combination of two or more substances without any chemical reaction occurring between them. Components of a mixture can be separated using physical methods such as heating, filtering, evaporation, .... etc
<em><u>A two-phase mixture</u></em> is a type of mixture that contains two different phases of matter, for example solid and liquid phases in one mixture or liquid and gas phases in one mixture.

<u><em>Now, we can give examples of two-phase mixtures and mention how to separate them:</em></u>
<u><em>A mixture of sand and water</em></u> is considered a two-phase mixture (sand is sold and water is a liquid).
<u><em>The components can easily be separated</em></u> using filtration where the sand will remain on the filter paper and water will pass.

Another example is <u><em>a mixture of sugar and water</em></u> (sugar is a solid and water is a liquid).
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Hope this helps :)</span>
8 0
4 years ago
Read 2 more answers
Consider the Zn(s) + Cu^+2(aq) ---&gt;Zn^+2(aq) + Cu(s) system. Which element was the electron donor?
Tpy6a [65]
Basically, electron donors are the elements that give up there electrons, so they will be oxidized. In the reaction, Zn(s) oxidizes into Zn^+2, so the 2 electrons are bing donated to the Cu^2+. Thus Zn(s) is the electron donor
3 0
3 years ago
How many atoms and ions does nickel oxide have?
Alex73 [517]

Answer: 1 atom

Explanation:

The loss of the remaining valence electron results in an ion with a +2 charge. The proper way of noting the charges on these ions is to use the systematic name for each ion, nickel (I) for the +1 ion and nickel (II) for the +2 ion.

4 0
3 years ago
When a polar molecule causes a charge redistribution in a nonpolar molecule, what are the molecules of the mixture most likely e
White raven [17]

Answer is: dipole-induced dipole interactions.

Intermolecular forces are the forces between molecules or particles.

There are several types of intermolecular forces: hydrogen bonding, ion-induced dipole forces, ion-dipole forces and van der Waals forces.

A dipole-induced dipole interaction is a weak attraction that results when a polar molecule induces a dipole in a nonpolar molecule by disturbing the arrangement of electrons in the nonpolar species.

4 0
3 years ago
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