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Forum Rules: Read This Before Posting Topic: molar mass, Ionic and Net Ionic equation, and sodium benzoate  (Read 7099 times)

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taper32tar

• Guest molar mass, Ionic and Net Ionic equation, and sodium benzoate
« on: May 12, 2004, 05:41:28 PM » -How would you prepare 1500 mL of a 0.156 M solution  of MgCl2 in H2O?                       [molar mass MgCl2 = 95.22 g/mol]

Amount  of  MgCl2 needed:
Amount of H2O needed: -Write complete ionic and net ionic equation and identify the driving force for the reaction, if a reaction will occur.

Ag (C2H3O2) (aq) + H CI (aq)---> AgCI (s) + HC2H3O2 (aq)

-Soda pop may contain 0,5% by mass sodium benzoate as a preservative.  What approximate mass of sodium benzoate is contained in 1.00L of soda pop?
(I know that the molar mass of sodium benzoate equals 144.11 g/mol) (C6H5CO2Na)  AWK

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« Reply #1 on: May 13, 2004, 01:09:32 AM »
Amount  of  MgCl2 needed: 1.5x0.156x95.22
Amount of H2O needed:
up to volume 1.5 L

Ag +(aq) + C2H3O2-(aq) + H +(aq) + CI- (aq)---> AgCI (s) + HC2H3O2 (aq)

0.5x1000/100
AWK