How many atoms are in one mole of potassium

1 answer:

5 0

Answer : 6.022• 10^23 atoms of potassium

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Ipatiy [6.2K]

Answer:0.015 m

Explanation:

Given

distance between two slits(d)=0.050 mm

Distance between slit and screen=2.5 m

Wavelength $(\lambda )=600 nm$

and distance between First order and second order $=\frac{D\lambda }{2d}$

$=\frac{2.5\times 600\times 10^{-9}}{2\times 5\times 10^{-5}}$

$=15\times 10^{-3}$

=0.015 m

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How many atoms are in one mole of potassium​