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3 years ago

What is the velocity of a electron whose wavelength is 100 pm?

Chemistry

1 answer:

Anni [7]3 years ago

5 0

Answer:

v = 7.3 × 10⁶ m/s

Explanation:

Given data:

Velocity of electron = ?

Wavelength = 100 pm

Solution:

Formula:

λ = h/mv

λ = wavelength

h = planck's constant

m = mass

v = velocity

Now we will put the values in formula.

100 ×10⁻¹² m = 6.63 × 10⁻³⁴ j.s / 9.109 × 10⁻³¹ kg × v

v = 6.63 × 10⁻³⁴ kg.m²/s / 9.109 × 10⁻³¹ kg ×100 ×10⁻¹² m

v = 6.63 × 10⁻³⁴ m/s /910.9 × 10⁻⁴³

v = 0.0073 × 10⁹ m/s

v = 7.3 × 10⁶ m/s

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The iron cam is larger than the aluminum cam even if with the same size.

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Answer:

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Explanation:

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Where equilibrium constant, K, is:

K = [NO2]³[H2O] / [HNO3]²[NO]

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To solve this question we need to find molarity of each gas and replace these in the equation as follows:

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Explanation:

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