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zlopas [31]
2 years ago
7

How many atoms are in 0.00014 mol of Na?​

Chemistry
1 answer:
Ludmilka [50]2 years ago
4 0

Answer: Use Avogadro's number, NA = 6.02 × 1023 atoms/mol.

Explanation:

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Different isotopes of the same element emit light at slightly different wavelengths. A wavelength in the emission spectrum of a
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Different isotopes of the same element emit light at slightly different wavelengths, the minimum number of slits  is mathematically given as

N=1820slits

<h3>What minimum number of slits is required to resolve these two wavelengths in second-order?</h3>

Generally, the equation for the wave is mathematically given as

d\ sin\ (\theta\ m) \ = \ m\  \lambda

Where the chromatic resolving power (R) is defined by

R\  =\ \lambda\ / \ d \  \lambda

R = nN,

Therefore

\lambda_1 \ = \  (656.45)(1 \ * \ 10^{-9})/1mm

\lambda_1= 656.45*10^{-9}

and

\lambda_2= (656.27)(1*10^{-9})/1mm

\\\\\lambda_2= 656.27*10^{-9}m

In conclusion, the minimum number of slits is required to resolve these two wavelengths in second-order

N\ =\ \dfrac{\lambda}{m\ d\ T\ }\\\\

Therefore

N\ =\ \dfrac{656.45 \ * \ 10^{-9}}{2\ * \ (0.18*10^{-9})}

N=1820slits

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7 0
1 year ago
Question 6 (4 points)
pishuonlain [190]

Answer:

20.9%

Explanation:

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Which of these statements regarding enzymes is FALSE?
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Answer:

d. Enzymes are broken down by the reactions they catalyze.

Explanation:

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3 years ago
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What is the maximum number of electrons in the following energy level? n = 1
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Maximum number of electrons in nth energy level

\\ \sf\longmapsto 2n^2

Now

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Max electrons

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Where are the electrons found in Bohr's atomic model?
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Answer:

In the shell...

Explanation:

In the electronic shell, or the orbit..

Bohr's Atomic Model was given by Niels Bohr. He proposed that the electrons inside an atom moved around in orbits or shells. There were different shells in the atom named as K, L, M, N... These were also called energy levels...

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