%Lysis COMP 250 COMP 100 COMP 20 n=1 87.77 81.73 65.8 n=2 81.71 50.45 63.7 n=3 86.64 55.38 59.4 n=4 90.03 82.39 71.67 AVERAGE 86.5375 67.4875 65.1425 STD DEV 3.513397 16.94896 5.102211 SEM 1.7567 8.47448 2.55111

Constants and Conversions (* = exact) 1 km = 0.6214 mi 1m = 39.37 in 1 kg = 2.205 lb 1L = 1.057 qt N₁ = 6.022 x 1023 1 lb = 453.59 g 1 gal = 4 qts* c = 3.00 x 10 m/s 1 in = 2.54 cm* 1lb= 16 oz. 1 gallon = 3.785 L 1 mi=5280 ft * 1 cal = 4.184J* 1 ft=12 in * R = 0.08206 L atm mol-¹K-¹ C₂ H20= 4.18 J/g C 760 torr = 760 mmHg = 1 atm* h = 6.626 x 10 MJs The density of silver is 10.49g/mL. What is the volume in milliliters (mL) of 1.52 pounds of silver? Round to the correct number of significant figures. Do NOT include units in your response.

A particular person in America uses 311.0 gallons of water in a given day. How many liters of water is this? 82.17 ADD FACTOR x ( ) O 1244 0: 1 Question 62 of 73 3.785 311.0 anl 0.25 4 ANSWER 0.9463 0.2642 RESET 2 77.75 1177

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½ (1070 kg)(28.3 m/s)2 = %3D 4.285 x 105 kg m²/s² O 4.3 x 105 kg.m²/s² O 4.28 x 105 kg m2/s² O4x 105 kg m²15?

Bud N. Chemist must determine the density of a mineral sample. His four trials yield densities of 5.27 g/cm3, 5.28 g/cm3, 5.27 g/cm3, and 5.29 g/cm3. Bud's calculated average density was 5.28 g/cm3. Independent studies found the correct density to be 4.75 g/cm3. Which of the following statements represents the best analysis of the data?     Bud's results have much greater accuracy than precision   Bud's results have low accuracy and low precision   Bud's results have high accuracy and high precision   Bud's results have much greater precision than accuracy

Gas is sold for $1.299 per liter in Toronto, Canada. Your car needs 10.00 gallons. How much will your credit card be charged in Canadian dollars? (1 gallon = 3.785 L) $49.17 O $52.17 O $67.15 O $36.79

A class of chemistry students measured the density of an unknown liquid. If the correct density of the sample is 1.14 g/mL, what is the percent error for their average experimental density? Group Density (g/mL) 1 1.033 1.185 1.075 4 1.026 1.135 1.022 %E = 94.6% %3D %E = 5.4% %3D %E = 6.1% %E = 5.7%

Plot the data appropriately on a properly formatted graph. Formatting should include descriptive title, axes labels with units, major grid lines marked, proper scaling, and a best fit line (use a ruler).