Find the relative atomic mass of Iron. Calculate the relative molecular mass of ammonia?

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Find the relative atomic mass of Iron. Calculate the relative molecular mass of ammonia?

2007-05-07 20:16:43 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

relative atomic mass is the mass of the substance in comparison with mass of 1 gm of C-12 isotope of carbon.
or according to the latest IUPAC convention mass of protium (H-1)

so rel at mass of Fe is 55amu
rel mol mass of ammonia (NH3) is 14+3*1=17amu

2007-05-07 20:22:50 · answer #1 · answered by K R 2 · 1⤊ 0⤋

RAM of Fe can be found at periodic table. It 55.4 if I'm not wrong. RMM is the total mass divide by no. of mole. So take the weight of ammonia mutiply by the number of moles in ammonia.

2007-05-08 03:25:56 · answer #2 · answered by Anneliese 3 · 0⤊ 0⤋

56

17

2007-05-08 03:53:32 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋