Calculate formula unit mass of `Al_(2)(SO_(4))_(3)`

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(a) Calculate the formula unit mass of Na_(2)SO_(4) (b) What is the mass of one mole of sulphur atoms? (c) Convert 12 g of oxygen into mole.

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Calculate the formula unit mass of CaCl_(2) .

Calculate the formula unit mass of CaCl_(2) .

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With the help of the balanced chemical equation 2Al(s)+3H_(2)SO_(4)(aq) to Al_(2)(SO_(4))_(3)(aq)+3H_(2)(g) Answer the equations below : What would be the mass of Al_(2)(SO_(4))_(3) formed per 27 g Al consumed?