- #1
AbbyCD
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I just conducted a lab in which I am testing varying amounts of magnesium to react with a consistent amount of hydrochloric acid, determining which amount of magnesium produces a reaction whose enthalpy is the closest to the theoretical/ideal enthalpy of this equation. I created 3 conditions using 0.025 mols Mg, 0.020 mols Mg, and 0.017 mols Mg. 0.017 mols produced the closest to the theoretical enthalpy, then 0.020, then 0.025 being the least accurate. I am completely lost as to why this would be! Could anyone provide some sort of scientific explanation that is responsible for my data? Why does the least amount of Mg yield the most accurate enthalpy?
Additional info just in case you need it to answer:
Balanced equation: Mg + 2HCl ------> MgCl2 + H2 (can't do subscript)
I used 50 mL HCl with a concentration of 1 mol Hcl per 1 L HCl(aq)
Thanks all! Also this is urgent because my lab is due tomorrow :)
Additional info just in case you need it to answer:
Balanced equation: Mg + 2HCl ------> MgCl2 + H2 (can't do subscript)
I used 50 mL HCl with a concentration of 1 mol Hcl per 1 L HCl(aq)
Thanks all! Also this is urgent because my lab is due tomorrow :)