Zinc metal reacts with hydrochloric acid according to this balanced equation.
Zn(s)+2HCl(aq)→ZnCl 2 (aq)+H 2 (g) \rm Zn(s) + 2HCl(aq) \rightarrow ZnCl_2(aq) + H_2(g)
When 0.124g g of Zn(s) \rm Zn(s) is combined with enough HCl {\rm HCl} to make 50.3mL mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.8 ∘ C ^\circ C to 24.7 ∘ C ^\circ C. Find ΔH rxn \Delta {\kern 1pt} H_{{\rm{rxn}}} for this reaction as written. (Use 1.0 g/mL {\rm{g}}/{{\rm{mL}}} for the density of the solution and 4.18 J/g⋅ ∘ C {\rm{J}}/{{\rm{g}} \cdot {\rm{^\circ C}}} as the specific heat capacity.)
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment