A nuclei has a mass of 3.77×10-25 kg. What is its mass in atomic mass units? 5.06×103 u 2.11×105 u 227 u

Question

A nuclei has a mass of 3.77×10^-25 kg. What is its mass in atomic mass units?

5.06×10³ u
2.11×10⁵ u
227 u

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Solution

To convert the mass from kilograms to atomic mass units (u), you need to know that 1 atomic mass unit is approximately equal to 1.66053906660 × 10^-27 kilograms.

Here are the steps to convert:

Write down the given mass in kilograms: 3.77 × 10^-25 kg
Write down the conversion factor: 1 u = 1.66053906660 × 10^-27 kg
Divide the given mass by the value of 1 u in kilograms: (3.77 × 10^-25 kg) / (1.66053906660 × 10^-27 kg/u)

Doing the calculation, you get approximately 2.27 × 10^2 u, or 227 u. So, the mass of the nuclei in atomic mass units is 227 u.

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A nuclei has a mass of 3.77×10-25 kg. What is its mass in atomic mass units? 5.06×103 u 2.11×105 u 227 u

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