need a scientific answer
Pls help its for my science coursework conclusion
2007-02-03 04:00:39 · 5 answers · asked by Luke J 1 in Science & Mathematics ➔ Chemistry
Efionrefail is a clever man
2007-02-03 11:41:08 · answer #1 · answered by Robin RJ 2 · 0⤊ 0⤋
when magnesuim reacts in hydrochloric acid why does it give off hydrogen quicker when the hydrocloric acid is...... what ? it's incomplete !
however it could be.... more concentrate ?
reaction between solid Mg and HCl should be described by a second order kinetc, so it depends directly to the HCl concentration and the Mg concentration (calculating concentration of an etherogenous solid is a tricky mess, because you should consider the porosity and the surface of the solid itself.)
However at higher concentratin of HCl the reaction should behave like a pseudo-first order, so the speed of the reaction increase and reach a plateau.
2007-02-03 12:09:57 · answer #2 · answered by scientific_boy3434 5 · 1⤊ 0⤋
More concentrated??? To put it simply...there are more acid molecules in a concentrated solution than a dilute solution of the same volume .This means there will be more collisions between the acid and the magnesium which is what is required for the reaction to take place.More collisions = quicker reaction = more hydrogen.
Hotter??? At a higher temperature the acid molecules have more kinetic energy so move around quicker so have more frequent collisions so the hydrogen is made quicker.
2007-02-03 12:18:20 · answer #3 · answered by Anonymous · 1⤊ 0⤋
I am not an English expert but I do find it difficult to understand some of these questions. To have progressed this far in ones course work .....perhaps one applies heat to the HCL
2007-02-05 14:53:04 · answer #4 · answered by Professor 7 · 0⤊ 0⤋
Quicker when the hydrochloric acid is what?
2007-02-03 12:07:54 · answer #5 · answered by TheOnlyBeldin 7 · 0⤊ 1⤋