Experiment 13: Aluminum Analysis ☆ Date 22 A1-LR Lab Data Sheet: Equation: 2Al(s) + 6HCI (aq) → 2 AIC 13 (28) + 3H₂(g) D

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Experiment 13 Aluminum Analysis Date 22 A1 Lr Lab Data Sheet Equation 2al S 6hci Aq 2 Aic 13 28 3h G D 1 (96.83 KiB) Viewed 47 times

Experiment 13: Aluminum Analysis ☆ Date 22 A1-LR Lab Data Sheet: Equation: 2Al(s) + 6HCI (aq) → 2 AIC 13 (28) + 3H₂(g) Data R=0.0821/atm. L 1. Mass of aluminum sample (g) 2. Instructor's approval of apparatus 3. Volume of H2 collected (mL) V 4. Temperature at gas-collection site (°C) T 5. Barometric pressure (Torr) P01 Pgns + PH₂0 Calculations 1. Vapor pressure of water at 1°C (Torr) 2. Pressure of "dry" H₂ collected (Torr) 3. Amount of H2 produced (moles H₂) PENRT 4. Amount of Al reacted (moles Al) 5. Mass of Al in sample (g) 6. Percent by mass of Al in sample 7. Average percent of Al in sample Calculations: P₂ | atm = 0,911 Trial 2 atm = 0.964 mulls llg Smoles Al #31 n = 0,911 x 0.0401 Name Samantha #32n = 0.964 x 0.0328 0. 0821 X299.15 Trial 1 0.0299 X 40. 10ml 20.00 709.7 torr 17.5 692.2 0.0015 -0.027 0.73 #5 135 = 0.0015 #4 0.0821 x 293.15 97/2 × Trial 2 0-0321g X 32.80m 1 26.00 758.0 torr 25.2 732.8 0.0013 0.023 26.980.601 = 0.02698 20.98* $.6×10-4 -0.0232 x 0.0015 X 26.98 = 0.02698 -= 0.0013 1/3 x 0,0013 +26.48 = 0,023 #4 #60.26 98 100 0.0232 */00 0.023