1. Given the amounts, find the limiting reactant for cach reaction mixture. Some
ID: 712564 • Letter: 1
Question
1. Given the amounts, find the limiting reactant for cach reaction mixture. Some balancing may be nocessary! a) 60 mL of .O M NaO is added to 12.0 mL of 0.50 M H:S0 b) 50.0 mL of 1.0MHCl( is added to 1853 gof Ca(O c) 120 mL of 0.50 M HNOinp is added to 120ml of LO M NaOH 2. Write the molecular, ionic and net ionic equations for all the acid base reactions in the question above CHE-J2SI Experiment Student Name: Insfracter Name 3. Given the following data: 0.025 0.050 0.073 1.0 1.9 2.9 Make an estimation to predict the result when 0.200 moles of neactant are added. ExplainExplanation / Answer
Q1)
a) 2NaOH(aq) + H2SO4 (aq) ---------------> Na2SO4 (aq) + 2H2O(l)
6x 1.0 =6 12x0.5 = 6 0 0 initial mmoles
0 3 3 - after reaction
AS NaOH is completely consumed ,NaOH is the limiting reagent
b) 2HCl(aq) + Ca(OH)2(s) ------------------> CaCl2 (aq) + 2H2O(l)
50x1.0 = 50 [ 1.853/74]x103 = 25.04 0 0 initial mmoles
0 0.04 25 - after reaction
AS all the HCl is consumed HCl is the limiting reagent
C) HNO3 (aq) + NaOH (aq) ------------> NaNO3(aq) + H2O(l)
12x0.5 =6 12x1 =12 0 0 initial mmoles
0 6 6 - after reaction
Thus HNO3 which is consumed completely is the limiting reagent.
2) a)
2NaOH(aq) + H2SO4 (aq) ---------------> Na2SO4 (aq) + 2H2O(l) Molecular
2Na+ + 2OH- + 2H+ +SO4-2 --------------> 2Na+ + SO4-2 + 2 H2O (l) total IOnic
2OH- + 2H+ ------------> 2 H2O(l) net ionic equation
b)
2HCl(aq) + Ca(OH)2(s) ------------------> CaCl2 (aq) + 2H2O(l)
Ca+ + 2OH- + 2H+ +2Cl- --------------> Ca+ + 2Cl- + 2 H2O (l) total IOnic
2OH- + 2H+ ------------> 2 H2O(l) net ionic equation
c)
HNO3 (aq) + NaOH (aq) ------------> NaNO3(aq) + H2O(l) molcular
OH- + Na+ + H+ +NO3- ------------> H2O(l) + Na+ +NO3-total ionic equation
OH- + H+ ------------> H2O(l) net ionic equation
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