Solution

the freezing point of solution, different solutes are dissolved in solvents. When a solute is combined with a solvent, such as dissolving sugar (solute) into water (solvent), a solution is formed. The process of decreasing a freezing point of a liquid by dissolving a solute in a solution is referred to as freezing point depression. The freezing point is a colligative property, which means that the freezing point depends on the number of solute particles dissolved in a solution. For example, CaCl2

Materials & Methods In the osmotic lab seven cups , a marker, metric ruler, digital balance, paper towels, a knife and seven cups containing solutions 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6m of sucrose were used in the experiment. The marker was used to label the seven cups with the seven different concentrations of sucrose . A cork borer was used to cork the potato and then the metric ruler was used

the substrates and active sites of enzyme increase due to the increasing amount of active sites which allow more collisions to happen, so the rate of breakdown of lipids to simpler substances will increase. During the experiment, sodium carbonate solution and pH indicator phenolphthalein will be added ahead of

states that the size of a particle will not change the water potential or occurrence of osmosis in a solution-submerged cell, only the amount of the solute in the solution will affect osmosis. To test this, we used three different sized solutes—sucrose, glucose, and NaCl—to see if the size of the solute had an effect on the osmosis of water into or out of white potato cells that were submerged in solutions containing the 3 solutes. We found that the size of the particles of solute does not affect osmosis

samples immersed in sucrose solutions of different concentrations for 24 hours? The concentrations of sucrose solution are 0.0mol 〖dm〗^(-3), 0.2mol 〖dm〗^(-3), 0.4mol 〖dm〗^(-3), 0.6mol 〖dm〗^(-3), 0.8mol 〖dm〗^(-3), and 1.0 mol 〖dm〗^(-3). Hypothesis: When plant tissues are immersed in sucrose solutions of different concentration, the cells will gain or lose water by osmosis and therefore change in size and mass. If the potato samples are immersed with hypertonic solution, the mass of samples will be

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Osmosis is a type of diffusion where high concentrated water molecules move to lower concentrated water molecules through a selectively permeable membrane. Different concentrations affect the rate of osmosis. By increasing the amount of solvent in a solution, there will be lower water potential. If the water molecules inside of a cell has a higher concentration than outside, the water molecules would end up moving out of the cell. This will be known to be hypotonic because the cell will be bigger and

The hypothesis was not supported because the higher the concentration of NaCl solution, the lower the rate of osmosis as the water ions are attracted to the NaCl ions against the concentration gradient. As shown in table 1.0 the mass of the egg changes each time it is placed in a certain concentrated solution. The reason for this change in mass is the process of osmosis through the egg’s semi-permeable membrane. The water within the egg cell’s vacuole can expand or shrink depending on the amount

determine what is the concentration of the unknown solution along with what concentration would be more isotonic to the chicken egg? Hypothesis If we placed our chicken egg into a higher percentage of sucrose solution for a set period of 60 minutes then the egg will gain weight. If the egg gained weight then the sucrose solution it was placed in had a low concentration that would make it hypotonic. If the egg loses weight then sucrose solution it was placed in had a high concentration that made

is used to purify solids. This process dissolves a crude solid with impurities in a mildly boiling solvent, and cooling down the mixture afterwards for crystals to reconstruct themselves in solution. This method allows impurities to separate and remain in solution as precipitate or remain uniform in solution. Solids are more soluble in hot solvents than in cold ones, allowing maximum dissolution for proper separation and subsequent crystallization to occur. After purifying the compound, the melting