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# Appendix - 8 APPENDIX Density calculations for PEG 1.0228...

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8. APPENDIX Density calculations for PEG 1.0228 1.0771 1.0592 0.9851 1.0644 average ρ PEG = 1.0489 g/mL 1.0725 1.0853 1.0284 1.0455 Density calculations for Potassium Phosphate 1.1671 1.1941 1.1815 1.1337 1.1838 average ρ K2PO4 = 1.1614 g/mL 1.1454 1.1274 1.1363 1.1819 14

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Calibration Curve for Salt M T = V PEG . ρ PEG + V H2O . ρ H2O M salt = V salt . ρ salt . C salt C salt T salt T m Calculations of Concentrations 1. For pure water, concentration is 0. 2. 10 mL salt + 20 mL water: 10 1.1614 0.2 10 1.1614 20 0.9968 + 0.0736 3. 10 mL salt + 10 mL water: 10 1.1614 0.2 10 1.1614 10 0.9968 + 0.1076 4. For salt, concentration is 0.2. 5. For 0.5 mL salt + 19.5 mL water: 0.5 1.1614 0.2 0.5 1.1614 19.5 0.9968 + 5.802 10 3 - 15
Figure 3. Graph of calibration curve for potassium phosphate Calibration Curve for PEG 4000 M T = V PEG . ρ PEG + V H2O . ρ H2O M PEG = V PEG . ρ PEG . C PEG 1. For pure water, concentration is 0. 2. 1 mL PEG + 4 mL water, concentration is 1 1.0489 0.4 1 1.0489 4 0.9968 + 0.0833 3. 1 mL PEG + 3 mL water, concentration is 1 1.0489 0.4 1 1.0489 3 0.9968 + 0.1039 16 C PEG T PEG T M

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4. 1 mL PEG + 2 mL water, concentration is 1 1.0489 0.4 1 1.0489 2 0.9968 + 0.1379 5. 1 mL PEG + 1 mL water, concentration is 1 1.0489
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