- Pressure Change Trial Approximate Mass Of C6h30 G Exact Mass Of C H 07 9 Initial Pressure Kpa Final Pressure K 1 (76.23 KiB) Viewed 7 times
- Pressure Change Trial Approximate Mass Of C6h30 G Exact Mass Of C H 07 9 Initial Pressure Kpa Final Pressure K 2 (46.88 KiB) Viewed 7 times
- Pressure Change Trial Approximate Mass Of C6h30 G Exact Mass Of C H 07 9 Initial Pressure Kpa Final Pressure K 3 (38.02 KiB) Viewed 7 times
Pressure change Trial Approximate # Mass of C6H30, (g) Exact Mass of C&H 07 (9) Initial Pressure (kPa) Final Pressure (kPa) Change in Pressure (kPa) 1 0.10 N 0.20 3 0.30 0.11 100.004 105.59 5.686) 0.21 99.493 LIS.OSO 15.557 0.31 100.368 118.501/18-133 0.42/98.964 /120.373/21-409 0.51 199.025 120.373 21.348 4 0.40 5 0.50 a Create a graph of Change in Pressure (kPa) on the y-axis and Exact mas 31 (g) on the x-axis. Add a title to your graph.change peesouro 18 A
. Calculate the number of moles of citric acid in each trial Show one sample calculation below and record your answers in Table 2 ow 0.005205 44 osur 192, 121 Exact mass of C,H,O, (g) Moles of C,H,O, (mol) Table 2 - Analysis of pressure change Trial Mass of Moles of NaHCO, 9) NaHCO3 (Hol) 1 0.0 0.00488 ou 6.00 5205 2 020 0.00488 0.21 O 005295 3 0.30 000468 0.31 10.00 5205 4 0.40 6.00488 0.42 0.0052US 5 6:00 488 0.51 O 005205 Questions . 1. Each trial used the same amount of NaHCO, What happened to the pressure as you added increasing amounts of citric acid? Why did this happen? KAS dobled, int per ssvee McEcosy because CA Fire Masing grantz Crasiteic acid weee the gácgree count of Realtovt Based on the graph, what is the ideal amount (in grams) of citric acid required to react with 0.41 g of NaHCO,? Explain how you determined this answer. 10.30, of tea mis the change in peesovee levels off. 3. Based on the graph, which trial is closest to the ideal amounts of reactants? Explain how you chose this trial and eliminated the others. The third trial. last bf fure Plessure was revelacht
LAB: DETERMI According to the table, where to choose to folle ratio, in simplified In Table 2. find the role of each reactant for the ideal trial you identified above whole number coeficienta? 0.41 1.323 031 0 31 1:1 ICCHPO- Na3 C & Hea 5. When citric acid and sodium bearbonate react, the products are sodium citrate (Na.C.H.O. water and carbon dioxide. Write the balanced chemical equation including state of matter symbole in your balanced chemical equation. How does the NaHCO, CH. mole ratio in the balanced equation compare to the ratio that you determined in questioni & NaHCOs 1 Ir docer moren Decouse there has sumE suert ERRce, aie onave escortas 3 Oz 6. Which reactant, if any, was a limiting reactant in each trial? Enter your response the table. Support your answers with evidence from the lab. Evidence for the Limiting Reactant Trial Limiting Reactant Supporting evidence 3420 1 C6 H&O 2 NaHCO3 NaHCO3 NaHCO3 NaHCO₃