Investigating the solute content of potatoes

Molarity Sample Weight Original: New: Loss/Gain (g): Loss/Gain (%): Average Loss/Gain (%): 0.0m 1 1.17 1.34 + 0.17 + 14.53 +12.66 2 1.05 1.18 + 0.13 + 12.38 3 1.11 1.25 + 0.14 + 12.61 4 1.07 1.20 + 0.13 + 12.15 5 1.03 1.15 + 0.12 + 11.65 0.05m 1 1.06 1.17 + 0.11 + 10.38 +9.70 2 1.25 1.36 + 0.11 + 8.80 3 1.13 1.24 + 0.11 + 9.73 4 1.01 1.10 + 0.09 + 8.91 5 1.22 1.35 + 0.13 + 10.66 0.10m 1 1.13 1.20 + 0.07 + 6.19 +6.97 2 1.13 1.21 + 0.08 + 7.08 3 1.11 1.20 + 0.09 + 8.11 4 1.11 1.19 + 0.08 + 7.21 5 1.12 1.19 + 0.07 + 6.25 0.15m 1 1.15 1.20 + 0.05 + 4.35 +4.40 2 1.14 1.20 + 0.06 + 5.26 3 1.01 1.05 + 0.04 + 3.96 4 1.13 1.18 + 0.05 + 4.42 5 1.00 1.04 + 0.04 + 4.00 0.20m 1 1.14 1.18 + 0.04 + 3.51 +3.26 2 1.01 1.04 + 0.03 + 2.97 3 1.03 1.06 + 0.03 + 2.91 4 1.11 1.15 + 0.04 + 3.60 5 1.20 1.24 + 0.04 + 3.33 0.25m 1 1.03 1.05 + 0.02 + 1.94 +0.40 2 1.01 1.00 - 0.01 - 0.99 3 1.01 1.00 - 0.01 - 0.99 4 1.00 1.00 +/- 0.00 +/- 0.00 5 1.02 1.04 + 0.02 + 1.96 0.30m A 1.03 0.99 - 0.04 - 3.88 -5.94 B 1.02 0.96 - 0.06 - 5.88 C 1.01 0.93 - 0.08 - 7.92 D 1.00 0.93 - 0.07 - 7.00 E 1.00 0.95 - 0.05 - 5.00

The range was close to being inaccurate but showed that the potato samples solute content was between 0.25 and 0.3.

Flow diagram of how we obtained the results:

Fill a test tube with the sugar solution ê Cut out potato samples with an apple corer ê Cut each sample to 2cm in length ê Place a sample inside the test tube ê Place a foil lid over the neck of the test tube ê Leave for 28 hours ê Remove potato sample from the test tube and wipe off excess water ê Re-weigh and record the results

Scatter graph to test the accuracy of the results:

Section A:

Table of results showing molarity level and % loss/gain in the potato samples weight.

Molarity Sample Weight Original: New: Loss/Gain (g): Loss/Gain (%): Average Loss/Gain (%): 0.0m 1 1.17 1.34 + 0.17 + ...