Please fix my lab report

Lab Notes: Rate of Reaction for Alka Seltzer Tablets

Name: Reem Boushahri

Group 5

• Hypothesis: The reaction of the Alka Seltzer is affected by the acidity of the solution.

• Prediction : The Alka Seltzer will dissolve faster in lemon juice than in water.

• Materials:

Control (CV’s ) : Timing and Temp.

Assumptions : Nothing wrong with the tablets , time is not accrued, nothing wrong with the testing materials and the temp. is constant.

1. 3 Effervescent Antacid and pain relief tablets (Meijer’s brand)

2. Thermometer in C

3. Water (Meijer Brand)

4. 250 ML Beaker (Med lab supply brand)

5. 100 ML Graduated Cylinder (Pyrex 3025-100 Brand)

6. scale (VERITAS Brand) #3

7. Samsung Galaxy smartphone for timing

8. Gloves (Alaska Brand)

9. 3 paper towels ( Meijer brand )

• Methods (Control and Experimental):

1. Great value lemon juice (946ml) ½ cup

2. Scale (VERITAS brand #3 )

3. Hyprion ( PH. Paper)

4. Beaker 250 ml

5. Water 40 ml

6. Alaska gloves

7. Thermometer in F

8. Samsung Galaxy smart phone (for timing and recording)

9. Graduated cylinder 100 ml

10. 3 paper towels ( Meijer brand )

Experimental methods:

• Test the PH of separate fluids 7th.

1. Pour 20 ml of lemon juice and 40 ml of water in the beaker.

2. Testing the PH level for the water and the lemon juice mixed together.

3. Place beaker and antacid tablet side by side on the top of a towel on the top of calibrated scale.

4. Place antacid in solution.

5. Start timing and video recording.

6. Record dissolving rate every 10 Sec.

• Data (Control Data Table and Experimental Data Table)

Water : Lemon juice :

Total time: 1:01:62 Loss: 0.24 -0.47 grams

Lemon juice mixed with water:

One time:

1. 183.543

2. 184.365

3. 184.244

4. 184.130

5. 184.006

6. 184.029

Loss: 0.514 gram

Results of water

Loss : 0.284 gram

• Support or Refute Hypothesis

Hypothesis is supported