Question

The values of specific gravity are:

Standard Sugar Solution # 1= 1.014

Standard Sugar Solution # 2= 1.028

Standard Sugar Solution # 3= 1.042

Show your calculations below.

3. Plot data points of the 3 standard sugar solutions on a graph. Include the data point for distilled water. Then draw the calibration graph. Label the x-axis & the y-axis.

Y acess: 1.05 1.04 1.03 1.02 1.01 1.00 0.99 X acess: 0 , 2, 4, 6, 8, 10, 12

4. Determine the sugar concentration for Coke & Gatorade by using your calibration graph. Indicate on the calibration graph how you determine the concentrations of each solution.

Information recorded in the lab experiment:

Part C: Specific gravity of sugar solutions:

Standard Sugar Solutions/ Mass of Sugar/ Voume of Solution/ Specific Gravity

#1 / 18.00g / 500.0mL / 1.014

#2 / 36.00g / 500.0mL / 1.028

#3 / 53.00g / 500.0mL / 1.042

Part B: Specific gravity of soft/sports drinks:

Solution / Specific Gravity

Coke / 1.049

Gatorade / 1.024

5. Using the information (Sugar content and Serving Size) on the nutrition label of each drink, determine the concentration of sugar in each drink. Show your calculations.

6.Calculate the absolute errors of measured sugar concentrations by using the values determined in the previous problem as reference values

PLEASE HELP!

Answer 1

Question 3:

To create the plot, two series of data are needed. The sugar concentration (%) of the solutions will be displayed in axis "x" and the specific gravity in axis "y".

To obtain the sugar concentration in percentage, the following equation must be used:

m solute is the mass of sugar in solution, v solution is the volume of the solution and s.g. is the speficic gravity of the solution.

For example, for standard sugar solution #1, the sugar concentration (%) is:

sugar concentration (%) = (18 g)/(500 mL x 1.014 g/mL) x 100 = 3.55%

The rest of the concentrations are calculated in the same manner. Using a spreadsheet, a plot can be produced from both series of values. The following figure shows the resulting plot. The spreadsheet software can also give a linear correlation (calibration) from the given plot. For this case, the calibration is:

Specific gravity = 0.0041 x sugar concentration (%) + 1.

For the rest of the questions, consider submitting them in a different Q&A set.