• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6
7. 7
7
8. 8
8

The purpose of this investigation is to determine the effect varying temperatures have on the rate of reaction of magnesium (Mg) reacting with hydrochloric acid (HCl).

Extracts from this document...

Introduction

Investigation 6.2 Factors Affecting Rate Purpose: The purpose of this investigation is to determine the effect varying temperatures have on the rate of reaction of magnesium (Mg) reacting with hydrochloric acid (HCl). Hypothesis: If the temperature of the hydrochloric acid (HCI) is increased then the rate of reaction with magnesium (Mg) will also increase because according to the collision theory, molecules must collide to react and increasing the temperature increases the motion of molecules thus increasing the collision per second. Therefore the greater the number of collisions per second the greater the rate of reaction. Since the collisions occurring depend on the kinetic energy of the colliding particles and temperature is a an average of kinetic energy of the particles and increasing the temperature will increase the average kinetic energy of the particles, thus there be a greater number of collisions per second and a greater rate of reaction (Brown et all, 2008). Variables: Independent Variables: * The temperature of the Hydrochloric acid solution (HCl) o The varying temperatures of the Hydrochloric acid (HCl) (at 1M) will be 20�C, 30�C, 40�C, 50�C and 60�C. A thermometer will be used to measure the temperature of the hydrochloric acid solution (HCl). A water bath will be used to obtain the desired temperature of hydrochloric acid (HCl) Dependent Variables: * Rate of Reaction between Magnesium strip (Mg) and Hydrochloric acid solution (HCl) o The rate of reaction will be calculated by dividing the moles of Magnesium (Mg) (calculated by getting mass of magnesium strip and converting it into moles) ...read more.

Middle

18. Turn off the water bath. 19. Take the 50�5mL beaker containing 40mL hydrochloric acid out of the water bath (NOTE: If beaker is too hot use the beaker tongs to take out the beaker). 20. Pour the hydrochloric acid down the drain with water. 21. Rinse the beaker with tap water and dry using paper towel. 22. Repeat steps 6-21 for 2 more trials of the 20�C condition of hydrochloric acid solution. 23. Repeat steps 6-22 for 30�C condition of hydrochloric acid solution. 24. Repeat steps 6-22 for 40�C condition of hydrochloric acid solution. 25. Repeat steps 6-22 for 50�C condition of hydrochloric acid solution. 26. Repeat steps 6-22 for 60�C condition of hydrochloric acid solution. 27. Clean all materials and dispose any remaining magnesium ribbon, and pour any remaining hydrochloric acid down the drain with water. Observations: Table 1: Qualitative Properties of HCI solution and Magnesium strip before, during and After Reaction Magnesium Strip (Mg) HCI solution (HCI) Before * Shiny * Malleable * Solid * Grey colour * Smooth Surface * Odorless * Clear * Liquid During * Smokey * Fizzes * Bubbles produced After * Was completely reacted away * Clear * Liquid Table 2: Varying Temperatures of HCI, Mass of Mg strip and Time taken for reaction of Mg and HCI to complete Trial Target Temperature of HCI (�C) Actual Temperature of HCI (�0.5�C) Mass of Mg (�0.01g) Time taken for reaction to complete (�1s) 1 10 10.5 0.02 16 2 25 3 20 1 15 15.5 0.02 15 2 13 3 15 1 30 29.5 0.02 14 2 12 3 ...read more.

Conclusion

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Chemistry section.

Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

Related International Baccalaureate Chemistry essays

1. Electrochemical cells - investigate the effect of the temperature change of the anode electrolyte ...

- Reading judgement: when read the voltage on the voltermeter, because the voltermeter is always fluctuating, sometimes, make judgement on picking the data that displayed on the voltermeter. Systematic errors: - Temperature control: when heated the electrolyte on the

2. Investigate the rate of reaction of luminol in various factors. The objective was to ...

Repeat the procedure with 40�C, 50�C, 60�C, 70�C, 80�C and 0�C. (Use Ice bath for 0�C) Set up as follow: The table should be drawn as below: Temperature (�C) 0 15 30 40 50 60 70 80 Time (sec)

1. The rate of reaction between sodium thiosulfate and hydrochloric acid

lowest value: 0.02 M & the highest value: 0.1 M, Please refer to Data Collection and Processing -> Processed data). * The whole experiment is repeated 3 times and 27 results are recorded. * Control of variables: * The concentration of hydrochloric acid remains the same for each test.

2. Acids/Bases Design Lab. How does a change in the pH value of a solution ...

Therefore, the impact of pressure, as a variable in the investigation, is severely mitigated and will have virtually no/negligible impact on the data collected from the investigation. 3. The physical state is a significant factor affecting the rate of reaction (WebChem, n.d.).

1. In this experiment, the effect of concentration on rate of reaction was investigated. We ...

Thus, there is no more reaction and there is no carbon dioxide to be expelled. 4. How could reaction rate be calculated from your graph? The first graph shows the loss of carbon dioxide over time. In this experiment, the rate of a reaction may be measured by following the rate at which carbon dioxide is formed.

2. Chemistry extended essay - investigate the effect of 2-bromo-2-methyl propane concentration and temperature of ...

calculate K 1- since the equation Kt = 2.303 Log [Rcl] 0 [Rcl] t Is an equation of a straight line (y=mx+b) with slope k. and intercept =0, a plot of 2.303 log [Rcl] 0 / [Rcl] t versus t should yield a straight line with slope k.

1. Titration of Na2CO3.xH2O with HCl

This was done so that I could find the average of the readings and hence, obtain a more accurate measurement. Results: Data Collection: Expt. No. Initial Reading (� 0.05 cm3) Final Reading (� 0.05 cm3) Volume Difference (� 0.10 cm3)

2. Measuring the fatty acid percentage of the reused sunflower oil after numerous times of ...

But the experiment was too long and the solution that has prepared had come to an end after some trials. So the solution must be prepared by the assistant again and naturally the new solution will not be the same when it is compared to the previous one and this may cause another error in the results.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to