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5 December, 17:04

If 6.51 g of copper is reacted with 28.4 g of silver nitrate, the products will be copper (ii) nitrate and silver metal. what is the theoretical mass of silver that will be produced?

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  1. 5 December, 17:10
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    The theoretical mass of silver that will be produced is calculated as follows

    write the reaction equation

    Cu + 2Ag (No3) - - - > 2Ag + Cu (NO3) 2

    calculated the moles of each reagent

    moles = mass/molar mass

    Cu = 6.51g/63.5g/mol = 0.103 moles

    Ag (NO3) 2 = 28.4 g/169.87g/mol = 0.167 moles

    Cu is the limiting reagent therefore the moles Ag = 2 x0.167 = 0.334 moles

    mass = moles xmolar mass

    0.334mol x 107.87g/mol = 36.02 grams
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