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Atomic Mass

Atomic mass o...

Question

Atomic mass of hydrogen (H) is ___u.

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Solution

Atomic mass = No. of protons + No. of neutrons

So, atomic mass of hydrogen (H) = 1 + 0 = 1 u

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Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses: H = 1 u; Br = 80 u)

Q. Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H₂S.
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