What’s the molar mass of Au(NO3)3?

Molar mass of Gold (lll) Nitrate

Please and thanks c:

5 Answers

  • Molar mass = 382.9816 g/mol

    Au Gold atomic mass 196.9665694 1 atom 51.4298 % of total mass

    N Nitrogen atomic mass 14.00672 3 atoms 10.9718 % of total mass

    O Oxygen atomic mass 15.99943 9 atoms 37.5984 % of total mass

    196.9665694 + 14.00672*3 + 15.99943*9 = 382.9816 = molecular mass

    So molar mass = 382.9816 g/mol

  • Molar Mass Of Au

  • Au No3 3

  • Other people have answered this correctly, but to figure it out:

    1) Look at a periodic table. Find the mass of each element.

    Au = 196.96

    N = 14.01

    O = 15.99

    2) Figure out how many atoms you have of each (get this from the formula). Multiply.

    Au = 1 * 196.96

    N = 3 * 14.01 = 42.03

    O = 9 * 15.99 = 143.91

    3) Add them up.

    196.96 + 42.03 + 143.91 = 382.9 g/mol

    Now, that wasn’t so hard, was it?

  • 382.98

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