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katen-ka-za [31]
4 years ago
6

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?

Chemistry
1 answer:
Feliz [49]4 years ago
5 0

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%

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baherus [9]

Answer:

2.63×10²² atoms

Explanation:

From the question given above, the following data were obtained:

Mass of calcium (Ca) = 1.75 g

Number of atoms of calcium (Ca) =?

From Avogadro's hypothesis,

1 mole of Ca = 6.02×10²³ atoms

Recall:

1 mole of Ca = 40 g

Thus,

40 g of Ca = 6.02×10²³ atoms

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From Avogadro's hypothesis,

40 g of Ca = 6.02×10²³ atoms

Therefore,

1.75 g of Ca = 1.75 × 6.02×10²³ / 40

1.75 g of Ca = 2.63×10²² atoms

Thus, 1.75 g of Ca contains 2.63×10²² atoms.

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3 years ago
Why do many parasites eventually need new hosts?
Maslowich
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6 0
4 years ago
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AlladinOne [14]

Answer:

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3 0
3 years ago
Which of the following molecules or ions is polar? (20 POINTS)
taurus [48]

<u>For NO3- molecule(fig.1)</u>

1.  Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in NO3 are polar.

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<u>For CCl4 molecule(fig.2)</u>

1. Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in CCl4 are polar.

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<u>For NH3 molecule(fig.3)</u>

1. Bonds are created between elements with different electronegativity, most bonds would be polar. Bonds in NH3 molecule are polar.

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3 0
4 years ago
If you overshoot the endpoint in titration of the KHP, how would the calculated value for the molarity of the NaOH solution be a
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7 0
3 years ago
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