I performed a qualitative identification of magnesium contained in antacids. The following reactions were performed in the following order after acid neutralization of Mg(OH)2+HCl:
1)MgCl2+NH4Cl(s)+NH4CO3
Gas was released and a precipitate formed but I"m not sure what the exact reaction was. I also think that Mg(oh)2 was reformed. Afterwards, Na2HPO4 was added to the solution containing the precipitate. Thanks for you help!
Balancing antacid reactions
Moderators: Xen, expert, ChenBeier
Re: Balancing antacid reactions
NH4CO3 does not exists. If we assume NH4HCO3 instead of NH4CO3 the reaction might be something like that:suzinne wrote:I performed a qualitative identification of magnesium contained in antacids. The following reactions were performed in the following order after acid neutralization of Mg(OH)2+HCl:
1)MgCl2+NH4Cl(s)+NH4CO3
Gas was released and a precipitate formed but I"m not sure what the exact reaction was. I also think that Mg(oh)2 was reformed. Afterwards, Na2HPO4 was added to the solution containing the precipitate. Thanks for you help!
MgCl2 + 2 NH4HCO3 = MgCO3(s) + CO2(g) + 2 NH4Cl + H2O