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18 Nov 2019
Need chem help!
The application of Hess' law to chemical reactions is similar to adding math equations. Add the following math equations and show the simplified results. A + B = X + Y + X + B = A + Z/. In this lab you are adding the following three equations together to get the fourth equation. (1) MgCl_2(aq) + H_2O(l) rightarrow MgO(s) + 2HCl(aq) (2) Mg(s) + 2 HCl(aq) rightarrow MgCl_2(aq) + H_2(g) (3) H_2(g) + 1/2 O_2(g) rightarrow H_2O(l) (4) Mg(s) + 1/2 O_2(g) rightarrow MgO(s) Preform that same addition of equations to the following two reactions (1) NaOH(aq) + NH_4Cl(aq) rightarrow NaCl(aq) + NH_4OH(aq) (2) NH_4OH(aq) + HCl(aq) rightarrow NH_4Cl(aq) + H O(l) If reaction 2 of this lab raises the temperature of 100.0 grams of water by 3.5 degree C, calculate the heat, q, gained by the water. q = m times delta T times 4.184 J/g degree C
Need chem help!
The application of Hess' law to chemical reactions is similar to adding math equations. Add the following math equations and show the simplified results. A + B = X + Y + X + B = A + Z/. In this lab you are adding the following three equations together to get the fourth equation. (1) MgCl_2(aq) + H_2O(l) rightarrow MgO(s) + 2HCl(aq) (2) Mg(s) + 2 HCl(aq) rightarrow MgCl_2(aq) + H_2(g) (3) H_2(g) + 1/2 O_2(g) rightarrow H_2O(l) (4) Mg(s) + 1/2 O_2(g) rightarrow MgO(s) Preform that same addition of equations to the following two reactions (1) NaOH(aq) + NH_4Cl(aq) rightarrow NaCl(aq) + NH_4OH(aq) (2) NH_4OH(aq) + HCl(aq) rightarrow NH_4Cl(aq) + H O(l) If reaction 2 of this lab raises the temperature of 100.0 grams of water by 3.5 degree C, calculate the heat, q, gained by the water. q = m times delta T times 4.184 J/g degree C
Hubert KochLv2
6 Mar 2019