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lisabon 2012 [21]
3 years ago
15

Which ion below is present in greatest concentration in a basic (alkaline) solution

Chemistry
2 answers:
Nastasia [14]3 years ago
5 0

Answer:

hydroxide ion / OH-

Explanation:

Basic solutions have a greater concentration of hydroxide ions than hydrogen (H+) ions

PolarNik [594]3 years ago
3 0
Hydroxide ion I think if wrong I’m sorry
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The best lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between s and h. ho
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If we are to draw the sulfuric acid structure based on Lewis it would look like:

                       O

                      ll

                O = S – O –H

                       l

                      O

                       l

                       H

 

So from this, we can see that there are 2 double bonds (O = S) and 4 single bonds (S – O and O – H).

 

Therefore the answer is:

4 single, 2 double

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Why is Oxygen classified as an element?
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3 years ago
The essential oil found in cloves, eugenol, can be isolated by steam distillation because it is insoluble in water and has a mea
Damm [24]
We know that:
Molar Mass H2O: 18 g/mol 
<span>Molar Mass of Eugenol: 164 g/mol </span>
<span>Boiling point of H2O: 100 degrees C </span>
<span>Boiling point of Eugenol: 254 degrees C </span>
<span>Density of water: 1.0 g/mL </span>
<span>Density of Eugenol: 1.05 g/mL </span>

<span>Using formula:
V= [mole fraction x molar mass] / density </span>

<span>mH20: 0.9947 * 18
          = 17.9046 / 1 g/mL
          = 17.9046 </span>
<span>morg: 0.0053 * 164  
        = 0.8692/ 1.05 g/mL
        = 0.8278 </span>

<span>V% = Vorg/(Vorg + VH2O) * 100 </span>
<span>(0.8278/18.7324) * 100 = 4.419% </span>

Yotal volume = 30 mL; therefore, 
<span>0.0442 = (volume eugenol/30) </span>

<span>(m eug/mH2O) = (peug*164/pH2O*18) </span>
<span>(m eug/30) = (4*164/760*18) </span>
<span>m eug = about 1.44g and </span>
<span>
volume = mass/density
            = 1.44/1.05
            = about 1.37 mL </span>
6 0
3 years ago
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