Concentration of HCL affecting surface area to vol ratio Essay Example
Title:
To Investigate the Effect of Concentration on the Rates of Diffusion.
What is the relationship between concentration of hydrochloric acid and the rate of diffusion?
Abstract
The research question that this report is going to discuss is “What is the relationship between concentration of hydrochloric acid (HCl) and the rate of diffusion?” My hypothesis for this research question is that change in rate of diffusion will be observed when the agar blocks are placed in solutions of different concentrations of HCl. As the concentration of HCl increases, the rate of diffusion will also increase due to the steeper concentration gradient created. To investigate the change in rate of diffusion when different concentrations of HCl are used, I used agar blocks that are stained with universal indicator that would change from green to pink when exposed to HCl. To prepare the agar blocks, I used knife and ruler to acquire 5 agar blocks with equal dimensions of 3.0cm by 1.0cm by 0.5cm. Then I prepared 5 different concentrations of HCl with equal volume of 5cm^3 in test tubes, which were 0.0M. 0.2M, 0.4M, 0.6M, 0.8M and finally 1.0M of HCl. Then, I placed the agar blocks into respective test tubes, measuring the time taken for the agar blocks to turn from green to completely pink. This was repeated 2 more times, having 3 set of readings in total. The results collected showed an increasing trend in the rate of diffusion as the concentration of HCl increased. This clearly supported the hypothesis I derived at.
(227 words) Content Page
Abstract 2
Content Page 3
Introduction 4
Research question: 4
Hypothesis: 4
Introduction (2) 5
Literature Review 5
Methodology 6
Results 8
Results (2) 9
Discussion 10
Limitations 11
Improvements 11
Conclusion 12
Bibliography 13
Introduction
Research question:
How does change in concentration of hydrochloric acid (HCl) affect the rate of diffusion through the
To Investigate the Effect of Concentration on the Rates of Diffusion.
What is the relationship between concentration of hydrochloric acid and the rate of diffusion?
Abstract
The research question that this report is going to discuss is “What is the relationship between concentration of hydrochloric acid (HCl) and the rate of diffusion?” My hypothesis for this research question is that change in rate of diffusion will be observed when the agar blocks are placed in solutions of different concentrations of HCl. As the concentration of HCl increases, the rate of diffusion will also increase due to the steeper concentration gradient created. To investigate the change in rate of diffusion when different concentrations of HCl are used, I used agar blocks that are stained with universal indicator that would change from green to pink when exposed to HCl. To prepare the agar blocks, I used knife and ruler to acquire 5 agar blocks with equal dimensions of 3.0cm by 1.0cm by 0.5cm. Then I prepared 5 different concentrations of HCl with equal volume of 5cm^3 in test tubes, which were 0.0M. 0.2M, 0.4M, 0.6M, 0.8M and finally 1.0M of HCl. Then, I placed the agar blocks into respective test tubes, measuring the time taken for the agar blocks to turn from green to completely pink. This was repeated 2 more times, having 3 set of readings in total. The results collected showed an increasing trend in the rate of diffusion as the concentration of HCl increased. This clearly supported the hypothesis I derived at.
(227 words) Content Page
Abstract 2
Content Page 3
Introduction 4
Research question: 4
Hypothesis: 4
Introduction (2) 5
Literature Review 5
Methodology 6
Results 8
Results (2) 9
Discussion 10
Limitations 11
Improvements 11
Conclusion 12
Bibliography 13
Introduction
Research question:
How does change in concentration of hydrochloric acid (HCl) affect the rate of diffusion through the