PART 1 Mass of H20 (g) 50.0g Mass of NaOH pellets(g) 1.02g Initial temperature 21.2 C Final temperature 25.C Temperature change (TA-Ti) 4.7 C PART 2...
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Can you show your steps I'm lost

  1. For part 1 find the

    style="color:rgb(34,34,34);">ΔH1 of the reaction NaOH(s)---->NaOH(aq)

  2. For part 2 find the ΔH2 of the reaction HCl(aq)+ NaOH(aq)---->NaCl(aq) +H20(L)
  3. For part 3 find the ΔH3 of the reaction HCl(aq)+ NaOH(s)---->NaCl(aq) +H20(L)
  4. Find the ΔH3 of the reaction. Next compare this to the sum of parts 1 and 2 by using Hess's law(show all work)
  5. find the percent error for ΔH1and ΔH2 in comparison to ΔH3

%error=|( ΔH3)-[(ΔH1)+(ΔH2)]/(ΔH3) *100%


I've attached my data table to the problem

data table.jpg

data table.jpg

PART 1
Mass of H20 (g)
50.0g
Mass of NaOH pellets(g)
1.02g
Initial temperature
21.2 C
Final temperature
25.9.C
Temperature change (TA-Ti)
4.7 C
PART 2
Approximate mass of 25.0mL NaOH(aq)+25.0mL
50.0g
HCI(aq)
Initial temperature
21.2 C
Final temperature
24.7C
Temperature change (TFT;)
3.50
PART 3
Approximate mass of HCI(aq)
105.0g
Mass of NaOH pellets(g)
1.03g
Initial temperature
21.0 C
Final temperature
26.5.C
Temperature change
5.5. C

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