Answer:
Answer
Explanation:
Zack Gomez
Lack of clean water
Water should be clean cause we need water so we can drink it cause we live off of it so we need it so it should be clean. Animals need it to survive in the hot so they need it so it should be clean. Insects need it to survive so they need it so it should be clean. THE END
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Answer:
0.4590
Explanation:
How the refractive index of the hexane + toluene mixture varies linearly with mole fraction, it means that the mole fraction is the fraction that each pure index contribute for the mixture index, so, calling <em>xh</em> the mole fraction of hexane and <em>xt</em> the mole fraction of toluene:
1.375xh + 1.497xt = 1.441
And, xh + xt = 1 (because there are only hexane and toluene in the mixture), so xt = 1- xh
1.375xh + 1.497(1-xh) = 1.441
1.375xh + 1.497 - 1.497xh = 1.441
-0.122xh = -0.056
xh = -0.056/(-0.122)
xh = 0.4590
The representation is showing potassium atom (K) and Chlorine atom (Cl) when it ought to show their ions i.e potassium ion (K⁺) and Chlorine ion (Cl¯)
<h3>Dissociation equation for KCl</h3>
When potassium chloride, KCl dissolves in water, it dissociate to produce potassium ion (K⁺) and Chlorine ion (Cl¯) as shown below:
KCl(aq) —> K⁺(aq) + Cl¯(aq)
The representation given in the question is only showing potassium atom (K) and Chlorine atom (Cl). This makes it wrong as dissolution of ionic compounds in water will results in the corresponding ions of the element that makes up the compound
Please see attached photo
Learn more about dissociation equation:
brainly.com/question/25854432
Answer:
![M=0.960M](https://tex.z-dn.net/?f=M%3D0.960M)
Explanation:
Hello,
In this case, it is firstly necessary to compute the dissolved moles of hydrogen chloride into the water as shown below:
![n_{HCl}=\frac{PV}{RT}=\frac{2.09atm*1.78L}{0.082\frac{atm*L}{mol*K}*295.15K}=0.671molHCl](https://tex.z-dn.net/?f=n_%7BHCl%7D%3D%5Cfrac%7BPV%7D%7BRT%7D%3D%5Cfrac%7B2.09atm%2A1.78L%7D%7B0.082%5Cfrac%7Batm%2AL%7D%7Bmol%2AK%7D%2A295.15K%7D%3D0.671molHCl)
Thus, the molarity is computed as shown below:
![M=\frac{0.671mol}{0.699L}=0.960M](https://tex.z-dn.net/?f=M%3D%5Cfrac%7B0.671mol%7D%7B0.699L%7D%3D0.960M)
Wherein no change in volume is considered, therefore the volume of the solution was the same volume of water.
Best regards.