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CaHeK987 [17]
3 years ago
7

You have 125.0mL of a solution of H3PO4, but you don't know its concentration. If you titrate the solution with a 4.56M solution

of NaOH and reach the endpoint when 134.1mL of the base are added, what is the concentration of the acid?

Chemistry
1 answer:
Mariulka [41]3 years ago
5 0
4.89 mol/L

You can check the attached image for work.

-T.B.

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Calculate the average weight of the dogs listed in the chart below.
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Answer:

19

Explanation:

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What are the units of Mass?
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Read 2 more answers
The dipole measured for HI is 0.380 D. The bond distance is 161 pm. What is the percent ionic character of the HI bond?
Feliz [49]

Answer:

Percent ionic character of HI bond is 4.91%.

Explanation:

<h3>Given Data:</h3>

Measured Dipole = 0.380D

bond distance = d = 161pm = 1.61*10^-8 cm

<h3>Calculation:</h3>

% ionic character is determined by following equation:

% ionic= (dipole measured/dipole calculated)*100

Now,

Dipole(calc)=qd

Dipole(calc)= (1.6*10^{-19}*3*10^{9})esu  *1.61*10^{-8}cm

(In above step 3*10^8 is multiplied to convert coulomb into esu)

Dipole(calc)=7.728*10^{-18} esu*cm

As,

10^{-18}esu*cm= 1D

So,

Dipole(calc)=7.728D

Now we can % ionic character using above equation:

%ionic=(0.380D/7.728D)*100

% ionic character=4.91%

5 0
4 years ago
If you have 2 moles of sugar molecules,<br> you will have how many sugar molecules?
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Answer- im pretty sure it's 2

4 0
3 years ago
How does the energy of an electron change when the electron moves closer to the nucleus?
tankabanditka [31]
It increases. B.

Close to the nucleus are high energy levels, because of the pull of the nucleus.  But farther away from the nucleus, the electrons there are of low energy level.
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4 years ago
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