Question

Data provided

Table 2. Experimental Data Trial 1 Trial 2 Trial 3 30.13 Atmospheric Pressure (inches Hg) Mass Mg used (8) 0.039 0.025 0.011 39.58 25.89 11.47 Volume Hz gas generated (mL) Water Temperature (°C) 19.0 19.0 19.0 16.48 16.48 16.48 Partial Pressure Water Vapor (mm Hg; from Table 1) Difference in Water Levels (mm) 14.31cm 35.72cm 46.13cm Table 3. Molar Gas Volume and Ideal Gas Constant Calculations Trial 1 Trial 3 Trial 2 Trial 3 765.3 16.48 16.48 16.48 Atmospheric Pressure (mm Hg)* Partial Pressure Water Vapor Vapor (mm Hg: copy from above) Partial Pressure Liquid Water (mm Hg) Partial Pressure H2 (mm Hg) 10.5 26.3 33.9 738.32 722.52 714.92 Water Temperature (K) 292 292 292 Standard Volume H2 (ml)* 35.7 22.9 10.0 Moles Mg used (mol)* 1.605 x 10-6 1.029 x 106 4.526 x 107 Moles Hz produced (mol)* 1.605 x 10- 1.029 x 103 4.526 x 104 Molar Volume (4/mol) 24.92 24.29 24.30 24.5 Average Molar Volume (L/mol)* Ideal Gas Constant (Leatm)/(mol:(0)* Average Ideal Gas Constant (L-atm)/(mol-K))* 0.07398 0.07243 0.07167 0.0727

solve Q3 and Q4 please

Answer 1

3)

N- Standard deviation, Se y (x;-*)? For molar gas volume, X = 2405 NE3 s (24-92-2415) + (24:29-2415) + (24:30-24.5)2 V 3-1 / 0.2905 70-3025 1. - 0.3609 . Relative standard deviation, RSD = Sx100 = 0.3609 X10010473 24.5

- 1 For ideal gas constant, x = 0.0727 s= 560.07398-090727)² +0.072 43-0:0727² + - (0.07167 -0.0727) 3-1 2.7722x106 • ✓ 1 3861x106 2 .. . 3 1.1773 X10 -3 RSD = SX100 1773x15x100 0.07 27 = 1.6193 xo

4)

%error. [actual value - Experimental value] i actual value $100 Perant error molar volume = 22.414 – 2415x100 = -9.3% perant lovor ideal gas constant = 0.08 206 - 0.0727 x 100 221414: . 0.08206