1. Draw conclusions from the data collected during the laboratory. How does temperature affect the rate of osmosis across the semipermeable membrane of the dialysis tubing? How does molasses concentration affect the same? Provide evidence from the data set to support your conclusions. (4)

To draw conclusions about how temperature and molasses concentration affect the rate of osmosis across the semipermeable membrane of dialysis tubing, we can analyze the expected outcomes based on typical laboratory results. 1. **Effect of Temperature on Osmosis:** - **Conclusion:** As temperature increases, the rate of osmosis across the semipermeable membrane increases. - **Evidence:** In experiments, it is often observed that at higher temperatures, the kinetic energy of water molecules increases, leading to a faster movement of water across the membrane. For instance, if data shows that the volume of water that diffuses into the dialysis tubing increases significantly at 37°C compared to 20°C, this supports the conclusion that higher temperatures enhance the rate of osmosis. 2. **Effect of Molasses Concentration on Osmosis:** - **Conclusion:** Higher molasses concentration outside the dialysis tubing results in a greater rate of osmosis into the tubing. - **Evidence:** If the data indicates that the mass of the dialysis tubing increases more when placed in a 30% molasses solution compared to a 10% solution, this suggests that the concentration gradient drives osmosis. The greater the difference in concentration between the inside and outside of the tubing, the more water will move into the tubing to balance the concentration, thus supporting the conclusion that molasses concentration affects the rate of osmosis. In summary, the data collected likely shows a clear relationship between temperature and osmosis rate, as well as between molasses concentration and osmosis rate, with both factors influencing the movement of water across the semipermeable membrane.