Calculating Relative Masses

10 Questions | By Cheers_fu | Last updated: Jan 11, 2013

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Do you know how to calculate Ar and Mr? Find out by answering all the questions in the Quiz. Refer to the Periodic Table to answer the questions,.

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1.

Calculate the relative molecular mass of HF.
2.

Calculate the relative molecular mass of NH₃.
3.

Calculate the relative formula mass of CaO.
4.

Calculate the relative formula mass of K₂O.
5.

Calculate the relative formula mass of Na₂SO₄.
6.

Calculate the relative formula mass of Mg(OH)₂.

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7.

Calculate the relative formula mass of (NH₄)₂CO₃.

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8.

Calculate the relative formula mass of FeSO₄.7H₂O.
9.

Metal M forms a sulfate ion with the formula MSO₄, which has a relative formula mass of 136. Calculate the relative atomic mass of metal M.
10.

Metal X forms a sulfate ion with the formula Cu(XO₃)₂, which has a relative formula mass of 414. Calculate the relative atomic mass of metal X.