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1 April, 21:51

A chemist prepares a solution of iron (II) bromide FeBr2 by measuring out 0.55kg of iron (II) bromide into a 500. mL volumetric flask and filling the flask to the mark with water.

Calculate the concentration in / molL of the chemist's iron (II) bromide solution.

Round your answer to 2 significant digits

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  1. 1 April, 22:09
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    Molar mass of ferrous bromide: 215.65

    m (FeBr2) : 550/215.65 = 2.55moles

    this is dissolved in 500mL of water so in 1L of solution there will be 2.55x2 = 5.1mol/L
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