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Elza [17]
3 years ago
12

What is the wavelength of an electron with a mass of 9.109×10−31 kg and a velocity of 3.43×107 ms? Use 6.626×10−34kg m2s for Pla

nck's constant. Your answer should include three significant figures.
Chemistry
1 answer:
anyanavicka [17]3 years ago
6 0

<u>Answer:</u> The wavelength of an electron is 2.121\times 10^{-11}m

<u>Explanation:</u>

To calculate the wavelength of a particle, we use the equation given by De-Broglie's wavelength, which is:

\lambda=\frac{h}{mv}

where,

\lambda = De-Broglie's wavelength = ?

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of electron = 9.109\times 10^{-31}kg

v = velocity of electron = 3.43\times 10^{7}m/s

Putting values in above equation, we get:

\lambda=\frac{6.626\times 10^{-34}Js}{(9.109\times 10^{-31}kg)\times (3.43\times 10^{7}m/s)}

\lambda=2.121\times 10^{-11}m

Hence, the wavelength of an electron is 2.121\times 10^{-11}m

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Carboxylic acids produce hydrogen bonds amongst themselves and possess lower vapor pressure. They generally possess a sour odor. When an acid and a base react with each other to produce salt and water and comprises the combination of hydrogen and hydroxide ions, the reaction is termed the neutralization reaction. Thus, when carboxylic acid reacts with base the reaction is termed neutralization.

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