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# How to Calculate and Solve for Mass | De Broglie’s Law

Last Updated on July 22, 2021

The image above represents mass.

To compute for mass, three essential parameters are needed and these parameters are Planck’s Constant (h), Wavelength (λ) and Velocity (v).

The formula for calculating the mass:

m = h / λv

Where;

m = mass
λ = wavelength
h = Planck’s constant
v = velocity

Let’s solve an example;
Find the mass when the wavelength is 4, the planck’s constant is 6.626e-34 and the velocity is 2.

This implies that;

λ = wavelength = 4
h = Planck’s constant = 6.626e-34
v = velocity = 2

m = hλv
m = 6.62607004e-34(4)(2)
m = 6.62607004e-34(8)
m = 8.28e-35

Therefore, the mass is 8.28e-35 kg.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the mass.

To get the answer and workings of the mass using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Basic Chemistry under Chemistry.

Now, Click on De Broglie’s Law under Basic Chemistry

Now, Click on Mass under De Broglie’s Law

The screenshot below displays the page or activity to enter your values, to get the answer for the mass according to the respective parameters which is the Planck’s Constant (h), Wavelength (λ) and Velocity (v).

Now, enter the value appropriately and accordingly for the parameter as required by the Planck’s Constant (h) is 6.626e-34, Wavelength (λ) is 4 and Velocity (v) is 2.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the mass and presents the formula, workings and steps too.