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mylen [45]
3 years ago
11

What is the mass of 2 moles of 238U?

Chemistry
1 answer:
Viefleur [7K]3 years ago
4 0
Use this formula mass = moles x molar mass. 
It should help. 
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Using the Rydberg formula, calculate the initial energy level when an electron in a hydrogen atom transitions into n= 2 and emit
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1

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\frac {1}{\lambda}=R_H\times Z^2\times (\frac {1}{n_{1}^2}-\frac {1}{n_{2}^2})

where,

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