Determine the formula unit mass of the following substances.

Question

CASE_STUDIESFormula Unit Mass for Ionic Compounds3 sub-questions

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An element 'X' forms an oxide with formula X₂O₃

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Law of Conservation of Mass in Chemical Reactions

Polyatomic Ions

Formula Unit Mass for Ionic Compounds

Law of Conservation of Mass in Chemical Reactions

Formula Unit Mass for Ionic Compounds

Formula unit mass of sodium oxide (Na2O) Atomic mass — Na = 23 u; O = 16 u

Formula unit mass of calcium nitrate, Ca(NO3)2 Atomic mass — Ca = 40 u; N = 14 u; O = 16 u

Find the formula unit mass of potassium chloride (KCl). Atomic mass — K = 39 u; Cl = 35.5 u.

Find the formula unit mass of magnesium hydroxide, Mg(OH)2. Atomic mass — Mg = 24 u; O = 16 u; H = 1 u.