Lab 2 Density Beverage1

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Chemistry 1010 Laboratory Fall 2020 Lab: Percent Sugar Content of Beverages 6 LAB: PERCENT SUGAR CONTENT OF BEVERAGES General Information Your Name: Joanne Hills Date: September 21, 2020 Experiment title: Percent Sugar Content of Beverages Lecture Course section: Chem 1010-15 Name of your Lecture Instructor: Voda Purpose In this experiment the goal is the determine the percent sugar content that is contained in the four beverages: Gatorade, Snapple, Coca Cola, and Red Bull. Density is used to find the percent of sugar. Five sugar references, with known amounts of sugar, are measured in part B. The densities of each beverage are graphed to obtain a calibration curve. In part C the densities of the four beverages are determined by the calibration curve of the sugar references. The densities will then be compared to each bever ages’ nutritional label. Theories and Principles Density is a measure of mass per volume and it is determined by dividing mass by volume. To find the mass, you measure the substance with a balance. And to find the volume, you put the substance in a graduated cylinder. The density of the solution depends on its concentration. To figure out if the density is at a higher level, the concentration will be at a higher level also. When the density and concentration of a solution is graphed, they will correspond with one another. And to prove this, a
Chemistry 1010 Laboratory Fall 2020 Lab: Percent Sugar Content of Beverages 7 calibration curve is drawn and a straight line between them will be present. The calibration curve is useful because it is used to find the concentration of a solution when that value is unknown. Raw Data Raw Data for Part B. Density of reference solutions Table 1. Mass, volume, and density of sugar reference solutions. % SUGAR SOLUTION MASS OF EMPTY GRADUATED CYLINDER (g) MASS OF CYLINDER WITH SOLUTION (g) MASS OF SOLUTION (g) VOLUME OF SOLUTION (mL) DENSITY (g/mL) 0% 96.008 196.008 100.000 100.0 1.000 5% 96.004 196.016 100.012 100.0 1.000 10% 96.003 199.115 103.112 100.0 1.031 15% 96.009 202.229 106.22 100.0 1.062 20% 96.010 203.445 107.435 100.0 1.074 Raw Data for Part C. Density of Beverages and Percent Sugar Content Table 2. Mass, volume, and density of beverages. Beverage Mass of graduated cylinder (g) Mass of cylinder with solution (g) Mass of solution (g) Volume of solution (mL) Density (g/mL) Gatorade 96.003 198.115 102.112 100.0 1.021 Snapple 96.114 199.005 102.891 100.0 1.029 Coca Cola 96.226 199.778 103.552 100.0 1.035 Red Bull 96.847 199.224 102.377 100.0 1.024
Chemistry 1010 Laboratory Fall 2020 Lab: Percent Sugar Content of Beverages 8 Calculations and Data Analysis Table 1. Mass, volume, and density of sugar reference solutions. % sugar solution: 10% Mass of empty graduated cylinder: 96.003g Mass of cylinder with solution: 199.115g Mass of solution: (mass of cylinder with solution) (mass of empty graduated cylinder) = mass of solution 199.115g - 96.003g = 103.112g Volume of solution: 100.0mL Density: (mass of solution) * volume of solution = density 103.112g * 100.0mL = 1.031g/mL Table 2. Mass, volume, and density of beverages. Beverage: Coca Cola Mass of graduated cylinder: 96.226g Mass of cylinder with solution: 199.778g Mass of solution: (mass of cylinder with solution) (mass of graduated cylinder) = mass of solution 199.778g 96.226g = 103.552g Volume of solution: 100.0g Density: (mass of solution) * volume of solution = density 103.552g * 100mL = 1.035g/mL Table 3. Sugar content of beverages. Beverage: Coca Cola Density: 1.035g/mL (found from density in table 2) Experimental percentage: 11% (found in the graph: Density vs Sugar Concentration)
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