Question #108058

A gas balloon is filled with hydrogen. If it weighs 4g, what is the number of hydrogen molecules in the balloon? (H =1)

Expert's answer

If the mass of H2 in baloon is 4 g, it contains 4/2 = 2 mole of H2. Multiplying by Avogadro's number 6.02*1023 we have that there are:

1.204*1024 molecules


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