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.com/ilrn/takeAssignment/takeCovalentActivity.do?locator-assignment-take&itakeAs; Review Topios] Use the References to access important values if needed for this question In the laboratory you dissolve 16.6 g of ammonium carbonate in a volumetric flask and add water to a total volume of 500 mL What is the molarity of the solution? What is the concentration of the ammonium cation? What is the concentration of the carbonate anion? M. An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer Submit Answer Retry Entire Group 9 more group attempts remaining hown

Explanation / Answer

weight of (NH4)2CO3    =16.6g

gram molecular weight of (NH4)2CO3 = 96g/mole

volume of solution                           = 500ml

molarity     = W*1000/G.M.Wt * volume of solution in ml

                 = 16.6*1000/96*500    = 0.346M

   (NH4)2CO3(aq) ----------------> 2NH4^+ (aq) + CO3^2- (aq)

0.346M                                      2*0.346M          0.346M

     The concentration of ammonium ion = 2*0.346M   = 0.692M

    The concentration of carbonate ion      = 0.346M

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