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OpenStudy (anonymous):
calculate the de broglie wavelenght (nm) of a berylium atom moving the speed at of .0175 m/s a.541 b.176 c.253 d.367 e.167 i just dont now how to calculate m? for the equation ......
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OpenStudy (anonymous):
periodic table can be used
OpenStudy (anonymous):
wavelenght=h/mu i just dont know how to get m i can get the molar mass from the periodic table but how i get n of mole
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