Notes Portfolio Graphing Data NOTES: Experiment 1 The pressure in the Erlenmeyer

Question

Notes Portfolio Graphing Data NOTES: Experiment 1 The pressure in the Erlenmeyer flask after adding 10ml of HCI is 1.00atm The temperature of the Erlenmeyer flask is 21.5C After adding the zinc to the HCT it bubbled immediatly The pressure in the Erlenmeyer flask after adding the zinc to the HCI is now 1.66at The temperature in the Erlenmeyer flask after adding the zinc is 21.5C The volume of gas in the Syringe is 92.2ml Experiment 2 The pressure of the Erlenmeyer flask after adding 0.500g of zinc is now 2.33atm The temperature of the Erlenmeyer flask after adding the zinc is now 22.0C The volume of gas in the syringe is 184.5ml Experiment 3 The pressure in the flask after adding SOml of HC1 is 1.00atm The temperature in the flask is 21.5c After I added 20g of zinc to the HC1, the flask exploded from the pressure nges Back to assignments NEED TECHNICAL

Explanation / Answer

3. The experimental value of molar volume is given as 92.2 mL/0.0038 mol = 24.26 L/mol

The listed value is 24.21 L/mol

% error = {(24.26 - 24.21)/24.21} * 100 ~ 0.21%

4. V = nRT/P

Part 2:

V = 0.0038 mol * 82 mL atm mol-1 K-1 * (21.5+273.15) K/1.66 atm

= 55.31 mL

part 1:

V = 0.0038 mol * 82 mL atm mol-1 K-1 * (21.5+273.15) K/1 atm

= 91.81 mL

The volume obtained in part 1 (91.81 mL) is greater than that obtained in part 2 (55.31 mL).

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.