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Vinvika [58]
3 years ago
6

In a cup of hot chocolate, what is the solvent? What is the solute? What is the solution?

Chemistry
2 answers:
Anastaziya [24]3 years ago
3 0
Solvent: The solvent would be the milk (or water, depending on what you used) 
Solute: Chocolate powder
Solution: The hot chocolate itself, since a solution is a homogeneous mixture, in which two or more substances are used

*Forgive me if I am wrong >////<

Hope I helped! <3 
Amanda [17]3 years ago
3 0

Answer:

Solute : Chocolate

Solvent : Milk

Explanation:

<em>Solute </em>- Substance dissolved in the solvent.

<em>Solvent </em>- The substance in which the solute is dissolved.

Since the Chocolate is dissolved in milk, Chocolate is solute and milk is the solvent.

Imagine that there is a cup of milk and you add chocolate to make chocolate milk. Something you add to solvent is solute.

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Answer : The pH of the solution is, 9.63

Explanation : Given,

The dissociation constant for HCN = pK_a=9.31

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\text{Moles of HCN}=\text{Concentration of HCN}\times \text{Volume of solution}=0.496M\times 0.225L=0.1116mole

and,

\text{Moles of NaCN}=\text{Concentration of NaCN}\times \text{Volume of solution}=0.399M\times 0.225L=0.08978mole

The balanced chemical reaction is:

                          HCN+NaOH\rightarrow NaCN+H_2O

Initial moles     0.1116       0.0461     0.08978

At eqm.       (0.1116-0.0461)    0       (0.08978+0.0461)

                        0.0655                       0.1359

Now we have to calculate the pH of the solution.

Using Henderson Hesselbach equation :

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Now put all the given values in this expression, we get:

pH=9.31+\log (\frac{0.1359}{0.0655})

pH=9.63

Therefore, the pH of the solution is, 9.63

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