Free Changing Concentration Essays and Papers

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  • The Rate Of A Reaction Between Hydrochloric Acid And Sodium Thiosulphate

    648 Words  | 3 Pages

    The Rate Of A Reaction Between Hydrochloric Acid And Sodium Thiosulphate Aim: I am going to investigate the effect of changing the concentration of Sodium Thiosulphate on the rate of the reaction between Hydrochloric Acid and Sodium Thiosulphate. Prediction: I predict that as the concentration of the Sodium Thiosulphate doubles, the rate of the reaction will double. I believe that when the most concentrated solution is used the reaction would be at its fastest. Collision Theory: In

  • An Investigation Into the Factors Affecting Osmosis

    1213 Words  | 5 Pages

    trying to find the effect of placing potatoes cut into French fries into salt solutions of different concentrations and the subsequent percentage difference in weight between potatoes placed in different salt concentrations. Hypothesis. Osmosis is the transfer of water from a region of high water concentration through a selectively-permeable membrane to a region of low water concentration. A selectively-permeable membrane will let through small molecules such as oxygen, water and glucose

  • Lab Report Investigating the Rate of Reaction Between Marble Chips and Acid when Variables are Changed

    617 Words  | 3 Pages

    Aim: to find out how changing the concentration of acid by diluting it affects the rate of reaction. Planning: I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use 30ml of liquid made up of different concentrations of acid diluted with water. Introduction: I have decided to vary the concentration of the acid as my variable I could have chosen other variables to change such as changing the heat of the acid

  • Investigation into Reaction Time when Hydrochloric acid and Thiosulphate are Mixed

    1034 Words  | 5 Pages

    the same throughout, except the concentration (Molar) of the hydrochloric acid. Prediction I think that the lower the concentration of the hydrochloric acid, the slower the solution will turn opaque (slow reaction) and make the cross invisible. I also think that the higher the concentration of the hydrochloric acid, the faster the cross will be come invisible - faster rate of reaction. I think the reaction will be quicker with a higher concentration of acid because there will be more

  • Investigation Of Osmosis In Potatoes

    570 Words  | 3 Pages

    Investigation Of Osmosis In Potatoes Aim: To investigate the affect of different concentrations of sugar solution on potato cells. Variables: The variables are; the concentration of sugar in the solution and the mass of the potato cylinder. We will measure the mass of a potato cylinder after a certain amount of time in a certain solution. Fair test: To keep the test fair we need to keep the controls the same. Like keeping the temperature the same so the kinetic energy doesn't

  • Osmosis

    1549 Words  | 7 Pages

    the concentration gradient moving from a high concentration to a low concentration through a partially permeable membrane. I will weigh the potato chips before and after, if the weight increases, it shows that the potato chip has a lower concentration than the liquid it is in. Therefore, osmosis has taken place. [IMAGE] Vocabulary (Taken From the Internet- Check Bibliography) Osmosis- the diffusion of fluids through a semi-permeable membrane or porous partition. Concentration Gradient-

  • Investigating the Rate of Reaction Between Marble Chips and the Varying Concentrations of Hydrochloric Acid

    705 Words  | 3 Pages

    the Rate of Reaction Between Marble Chips and the Varying Concentrations of Hydrochloric Acid Planning Before starting the experiment I had to work out how much marble chips would be needed and how much HCl would be needed. I decided that 20 grams of marble chips would be needed and I measured this on a pan balance. The chips would have to be of medium size as from a previous experiment done in class I realize that changing the surface area of the marble chips would change the rate

  • The Effect of Salt Concentration on the Weight and Length of a Potato Chip

    807 Words  | 4 Pages

    The Effect of Salt Concentration on the Weight and Length of a Potato Chip I am trying to find out if and how different concentrations of salt solution affect the weight and length of a potato chip in a certain amount of time. This will involve me performing the experiment, measuring the potato cylinders weight and length before and after the experiment putting results in a table producing charts showing the differences or similarities in results analysing the results and finally evaluating

  • Investigation to Determine the Effect of a Range of Different Concentrations of Sugar Solutions on the Potato Cells

    1000 Words  | 4 Pages

    Investigation to Determine the Effect of a Range of Different Concentrations of Sugar Solutions on the Potato Cells Aim My aim is to set up an investigation to determine the effect of a range of different concentrations of sugar solutions on potato cells. I predict that the higher the concentration the more the length and mass of the potato chip will decrease. The lower the concentration the more the length and mass of the potato chip will increase. This should happen due to the law

  • The Effect of Different Concentrations of Sucrose Solutions in Potato Cells

    825 Words  | 4 Pages

    The Effect of Different Concentrations of Sucrose Solutions in Potato Cells Prediction: I predict that the potato cylinder that is immersed in distilled water will increase in size the most out of all the potato cylinders. I think this because, in this solution there will 10ml of pure water, no sucrose, which means the potato can absorb the most possible water through osmosis, there are no molecules that can‘t be absorbed. Whereas in the other solutions, the sugar molecules won’t be