Viscosity
Viscosity Investigation
Research Question: How does the concentration of C6H12O6 affect the viscosity of a C6H12O6 solution?
Hypothesis
I believe that as the C6H12O6 concentration increases, so will the viscosity of the solution. I think so because the increased number of electrons caused by the greater mass of C6H12O6 will lead to stronger Van-der-Waals forces. Furthermore I believe that because of the increase of C6H12O6 particles, indicated by the increased number of moles of C6H12O6, there will be stronger dipole-dipole forces and hydrogen bonds. Thus I believe that concentration affects viscosity in such a way as that the stronger the concentration of the solution, the stronger the viscosity of the solution.
Variables
Independent variable: * Concentration of C6H12O6
Dependent variable * Time it takes to pour 1cm3 of the C6H12O6 solution as an indirect measurement of the viscosity of the solution
Controlled variable Temperature of the solution | Controlled by putting all solutions in a water bath set at 35°C until they have reached temperature of 35°C | Distance solution travels | Controlled by always pouring out 1cm3 of all the different C6H12O6 solutions for one reading | Pressure inside the burette | Controlled by always using the same burette |
Procedure
Apparatus
* * H2O * C6H12O6 * 1 25cm3 measuring cylinder (uncertainty: ±0.5cm3) * 1 50cm3 burette(uncertainty: ±0.1cm3) * 5 25cm3 flasks + fitting bungs * 1 electric scale(±0.0005g) * 1 thermometer(±0.005 °C) * 1 stopwatch(±0.005s) * 1 water bath at 35°C (±5°C)
Method
In this experiment the concentration of the Glucose solution is being varied in order to evaluate its effect on the viscosity. These solutions with different concentrations will be made by dissolving varying amounts of provided C6H12O6 in H2O. The solutions and their concentrations are as follows: Concentration of C6H12O6[mole dm3] | Mass of C6H12O6 powder [g] |
Research Question: How does the concentration of C6H12O6 affect the viscosity of a C6H12O6 solution?
Hypothesis
I believe that as the C6H12O6 concentration increases, so will the viscosity of the solution. I think so because the increased number of electrons caused by the greater mass of C6H12O6 will lead to stronger Van-der-Waals forces. Furthermore I believe that because of the increase of C6H12O6 particles, indicated by the increased number of moles of C6H12O6, there will be stronger dipole-dipole forces and hydrogen bonds. Thus I believe that concentration affects viscosity in such a way as that the stronger the concentration of the solution, the stronger the viscosity of the solution.
Variables
Independent variable: * Concentration of C6H12O6
Dependent variable * Time it takes to pour 1cm3 of the C6H12O6 solution as an indirect measurement of the viscosity of the solution
Controlled variable Temperature of the solution | Controlled by putting all solutions in a water bath set at 35°C until they have reached temperature of 35°C | Distance solution travels | Controlled by always pouring out 1cm3 of all the different C6H12O6 solutions for one reading | Pressure inside the burette | Controlled by always using the same burette |
Procedure
Apparatus
* * H2O * C6H12O6 * 1 25cm3 measuring cylinder (uncertainty: ±0.5cm3) * 1 50cm3 burette(uncertainty: ±0.1cm3) * 5 25cm3 flasks + fitting bungs * 1 electric scale(±0.0005g) * 1 thermometer(±0.005 °C) * 1 stopwatch(±0.005s) * 1 water bath at 35°C (±5°C)
Method
In this experiment the concentration of the Glucose solution is being varied in order to evaluate its effect on the viscosity. These solutions with different concentrations will be made by dissolving varying amounts of provided C6H12O6 in H2O. The solutions and their concentrations are as follows: Concentration of C6H12O6[mole dm3] | Mass of C6H12O6 powder [g] |