˚C, 14. Yusuf measures the melting point of ammonium acetate, NH4C2H3O2, as 117 but the literature value is 114 ˚C. What is the percent error in the measurement? x 100% = 2.63 % error GRAPHING: Graph the data in the following data table and answer the questions. Use the graph paper provided. Graph Requirements: ** Use a Straight Edge! Descriptive Title Indent axes so you have room to label them Label x-axis with measurement and units (independent variable) Label y-axis with measurement and units (dependent variable) Choose a convenient scale - your graph should take up at least ¾ of the graph area Plot points as an X or a dot with a circle around it “best Use a line of fit” or connect with a smooth curve when applicable Volume and Mass of Aluminum at 20.0 C Volume (cm3) (independent = x) Mass (g) (dependent = y) 11.7 27.0 19.7 54.7 30.9 79.4 42.0 108.3 49.3 134.6 59.8 150.0 Is it valid to begin the graph at the origin (0, 0) ? Explain. What is the mass, in of the aluminum at: 17.0 cm3 35.0 cm3 0.0 cm3 What is the volume, in cubic centimeters, of aluminum at: 189.0 g 50.0 g
14. Yusuf measures the melting point of ammonium acetate, NH4C2H3O2, as 117 ˚C, but the literature value is 114 ˚C. What is the percent error in the measurement? x 100% = 2.63 % error GRAPHING: Graph the data in the following data table and answer the questions. Use the graph paper provided. Graph Requirements: ** Use a Straight Edge! Descriptive Title Indent axes so you have room to label them Label x-axis with measurement and units (independent variable) Label y-axis with measurement and units (dependent variable) Choose a convenient scale - your graph should take up at least ¾ of the graph area Plot points as an X or a dot with a circle around it Use a line of “best fit” or connect with a smooth curve when applicable Volume and Mass of Aluminum at 20.0 C Volume (cm3) (independent = x) Mass (g) (dependent = y) 11.7 27.0 19.7 54.7 30.9 79.4 42.0 108.3 49.3 134.6 59.8 150.0 Is it valid to begin the graph at the origin (0, 0) ? Explain. What is the mass, in of the aluminum at: 17.0 cm3 35.0 cm3 0.0 cm3 What is the volume, in cubic centimeters, of aluminum at: 189.0 g 50.0 g