OBJECTIVE : To study the effects of hypotonic , hypertonic and isotonic solutions on mustard green .
PROBLEM STATEMENT : How does the hypotonic , hypertonic and isotonic solutions affect the mustard green ?
HYPOTHESIS : An increase the concentration of solutions , as decrease the percentage of change in most of mustard green .
MANIPULATED VARIABLE : The concentration of solution .
RSEPONDING VARIABLE : Percentage of change in mass .
CONTROL VARIABLE : Initial mass of mustard green .
APPARATUS AND MATERIAL : Mustard green , solution of sucrose with concentration of 0.5% , 1.0% , 1.5% , 2.0% and 2.5% , filter paper , cork borer , knife , beaker , test tube , electronic balance , stopwatch .
PROCEDURE : 1) Cut a mustard green and weight it to 5 gram 2) Fill up six beaker labeled A to F with sucrose solutions of concentration 0.5%, 1.0%,1.5% , 2.0% and 2.5% 3) Immerse one mustard green into each of the beaker A to F 4) After 15 minutes take out the mustard green and wipe them with filter paper 5) Weight each mustard green and calculate the percentage of change in mass of mustard green by using the formula change in mass over initial mass by 100% 6) Plot a graph of percentage of change in mass against the concentratrion of the sucrose solution
Percentage of mass of mustard green (%) : F-I / I X 100 %
Final length of mustard green (cm)
Concenration of sucrose solution ( %)
Initial length of mustard green (cm)
PRESENTATION OF RESULTS :
0.5
1.0
1.5
2.5
2.0
CONCLUSION :
As increase the concentration of sucrose solution , as decrease the percentage of change in mass of mustard green . Hypothesis is accepted .
You May Also Find These Documents Helpful
-
of dialysis tubing, 25 mL of sucrose solutions with concentrations of 0.02 Molar, 0.04M, 0.06M, 0.08M, 1.0M, as well as 25mL of distilled water, six 250 mL beakers, a balance, and paper towels. We first cut the dialysis tubing into 6 pieces, each 1ft. long, and placed them into a beaker of water. We then tied off the dialysis tubing and poured 25 mL of distilled water in. We repeated this with the rest of the five pieces dialysis tubing, pouring a different molarity of sucrose solution in different dialysis tubes. After all the tubes were filled and tied, we then dried the bags and weigh each one on the scale. After all the data was recorded, we filled all the beakers about ¾ full of distilled water, placed the bags into each beaker in unison, and waited 30 minutes. Next, the bags were removed from the beakers, dried, and weighed separately. We expected the mass to increase with increasing molarity because with the higher the concentrations, more water would need to be diffused into the bag to reach…
- 850 Words
- 4 Pages
Good Essays -
We then went to see if the sucrose entered the bag unfortunately the benedict's solution showed negative results. The second test ( Bag: 5% ovalbumin Beaker: 1 M sucrose) we put biuret in a test tube with the beaker solution and the indicator showed negative results. Then for the next test (Bag: 1 M Glucose Beaker: distilled H2O) they put Benedict's solution in a test tube with the beaker liquid. The benedicts showed positive results. The next test (Bag 1 M Sucrose Beaker: 1 M NaCl) they put Benedict's solution in a test tube with the beaker liquid. The indicator showed negative results. For the next test(Bag: 1 M NaCl Beaker: distilled H2O) they put silver nitrate in a test tube with the beaker liquid. The silver nitrate showed positive results. The next test (Bag 1 M sucrose Beaker: 5% ovalbumin) they used mass change to determine if the solute could pass through the bag. They weighed the bag before and after. The mass of the bag decreased showing that the H2O passed through the bag. The next test (Bag: 1 M NaCl Beaker: 1 M glucose) they put silver nitrate in a test tube with the eaker liquid. The indicator tested positive. The next test( Bag 1 M Glucose Beaker 1 M sucrose) they put iodine in a test tube with the beaker liquid. The indicator showed positive results. The next and final test (Bag: 1 M glucose Beaker: 5% ovalbumin)…
- 561 Words
- 3 Pages
Satisfactory Essays -
a. Describe the color change the student should observe after adding concentrated hydrochloric acid to the…
- 761 Words
- 4 Pages
Good Essays -
A dialysis bag has an initial mass of 26.3 g and a final mass of 30.2 g. Find the percent change in mass. Show your work!…
- 1093 Words
- 8 Pages
Powerful Essays -
You are to prepare five solutions of differing alcohol concentrations (0%, 10%, 20%, 30%, and…
- 476 Words
- 2 Pages
Good Essays -
How will changing the concentration of sucrose in solutions impact the mass of apple tissue submerged in the solution, and at what concentration will the sucrose solution and apple cores reach…
- 1050 Words
- 5 Pages
Good Essays -
Solution changed from clear to Green, with the addition of Starch, the solution turned Black…
- 730 Words
- 3 Pages
Good Essays -
Procedure: Measure the volume, mass, length and temperature of a variety of items. Create dilution of sugar water.…
- 1509 Words
- 7 Pages
Good Essays -
3. (Calculations on graph) The slope of the relationship between mass and volume is 1.08g/ml.…
- 548 Words
- 3 Pages
Satisfactory Essays -
- The food coloring + CH3COOH darkening in color, food coloring + NaOCI + CH3COOH returning to clear, red cabbage + NH3 turning green, red cabbage + CH3COOH turning pink, NaHCO3 + CH3COOH bubbling over, Na2CO3 + CH3COOH fizzing and turning cloudy, MgSO4 + NH3 turning white, and the MgSO4 + Na2CO3 becoming thick are all examples of macroscopic evidence for chemical change.…
- 1062 Words
- 4 Pages
Better Essays -
When the concentration of peroxydisulphate ions is fixed, the order of reaction with respect to iodide ion is formed.…
- 543 Words
- 9 Pages
Satisfactory Essays -
First, we obtained four carrot sticks per sucrose solution, totaling eight carrots. Each group of carrots was weighted together in order to determine their initial weight. The four carrots for 0.4M sucrose and the four carrots for 0.6M sucrose were weighed separately. Then we poured enough of the assigned solution into each cup so that it would be able to coat the carrots completely, and placed the carrots in the correct cups. The cups were labeled and covered with plastic wrap. Then they were left to stand overnight. In the original lab instructions, potato cores were supposed to be used, and part of the procedure involved cutting the cores. Because baby carrots were used, this step was omitted. Instead of using 100mL of sucrose solution, only enough was used so that the carrots were submerged.…
- 903 Words
- 4 Pages
Powerful Essays -
_ determine molarity of unknown solutions _ plot % change in mass by sucrose molarity…
- 436 Words
- 2 Pages
Satisfactory Essays -
Dyestuff Pink Cochinea Egg Yellow Green Blue Mixture A Mixture B Dyestuff Pink Cochinea Egg Yellow Green Blue Mixture A Table 1 Colour in Solution Colour as a Dried Spot Colour After Development Dark Red Red Dark Red Dark Purple/Red Burgundy Fuchsia Orange-Yellow Orange Orange, Yellow Dark Green Green Blue, Yellow Dark Blue Blue Blue, Pink Dark Red/Orange Yellow Yellow, Pink Dark Red/Brown Brown Red, Blue, Yellow Spots Observed a b c a b c a b a b a b c a b Table 2 Distance to Solvent Front (cm) 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6…
- 905 Words
- 4 Pages
Powerful Essays -
1) If we increase the molarity of NaOH from 0.1M to 0.2M, it will actually take less number of drops in order to change the color of the solution. This is because the more concentrated a substance is, less of the substance is needed to cause an equilibrium shift.…
- 531 Words
- 3 Pages
Good Essays