Acid and Water
Plop Plop
Fizz Fizz
Expt # 1
I. INTRODUCTION:
In this lab I will try to see in what an Alka-Seltzer tablet will dissolve fastest in. I need to figure out if the Alka-Seltzer tablet will dissolve slowest or fastest in tap water, warm water, cold water, salt water, or acidic water.
In this lab I wall develop and test a hypothesis, analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer is one of the world's best known antacids. Its main function is to absorb excess stomach acid.
II. MATERIALS: * Tap Water - Warm Water * Cold Water - Salt Water * Acidic Water -5 cups (250 mL of water in each cup) * A whole Alka-Seltzer tablet
III. HYPOTHESIS:
My hypothesis is that the Alka-Seltzer tablet will dissolve fastest in salt water, and the slowest in cold water. I think it will dissolve fastest in salt water because of the salt. I think it will dissolve slowest in cold water because the cold water doesn’t help the Alka-Seltzer dissolve faster.
IV. DATA:
Type of Water | Dissolve Time | Tap Water | 25.27 seconds | Acidic Water | 25.17 seconds | Warm Water | 25.37 seconds | Cold Water | 28.21 seconds | Salt Water (2 tsp of salt) | 38.41 seconds |
PICTURES:
V. ANALYSIS:
Q. Will you a whole or half a tablet of Alka-Seltzer tablet? A. I will use a whole Alka-Seltzer tablet for this lab experiment.
Q. How will you measure how quickly it dissolves? A. I will use a timer to time how fast the tablet dissolves.
Q. How much water will you use? A. I will use 250 mL of water.
Q. What safety precautions should you take? A. Don’t taste any of the water and don’t drink the water used for the experiment.
VI. CONCLUSION:
I therefore conclude my hypothesis was wrong. The tablet dissolved faster in acidic water because of the vinegar and slowest in the salt water because of the salt. In
Fizz Fizz
Expt # 1
I. INTRODUCTION:
In this lab I will try to see in what an Alka-Seltzer tablet will dissolve fastest in. I need to figure out if the Alka-Seltzer tablet will dissolve slowest or fastest in tap water, warm water, cold water, salt water, or acidic water.
In this lab I wall develop and test a hypothesis, analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer is one of the world's best known antacids. Its main function is to absorb excess stomach acid.
II. MATERIALS: * Tap Water - Warm Water * Cold Water - Salt Water * Acidic Water -5 cups (250 mL of water in each cup) * A whole Alka-Seltzer tablet
III. HYPOTHESIS:
My hypothesis is that the Alka-Seltzer tablet will dissolve fastest in salt water, and the slowest in cold water. I think it will dissolve fastest in salt water because of the salt. I think it will dissolve slowest in cold water because the cold water doesn’t help the Alka-Seltzer dissolve faster.
IV. DATA:
Type of Water | Dissolve Time | Tap Water | 25.27 seconds | Acidic Water | 25.17 seconds | Warm Water | 25.37 seconds | Cold Water | 28.21 seconds | Salt Water (2 tsp of salt) | 38.41 seconds |
PICTURES:
V. ANALYSIS:
Q. Will you a whole or half a tablet of Alka-Seltzer tablet? A. I will use a whole Alka-Seltzer tablet for this lab experiment.
Q. How will you measure how quickly it dissolves? A. I will use a timer to time how fast the tablet dissolves.
Q. How much water will you use? A. I will use 250 mL of water.
Q. What safety precautions should you take? A. Don’t taste any of the water and don’t drink the water used for the experiment.
VI. CONCLUSION:
I therefore conclude my hypothesis was wrong. The tablet dissolved faster in acidic water because of the vinegar and slowest in the salt water because of the salt. In