• 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

# Rate of Reaction Between Marble Chips and the Varying Concentrations of Hydrochloric Acid

Extracts from this document...

Introduction

Rate of Reaction Between Marble Chips and the Varying Concentrations of Hydrochloric Acid Planning Before starting the experiment I had to work out how much marble chips would be needed and how much HCl would be needed. I decided that 20 grams of marble chips would be needed and I measured this on a pan balance. The chips would have to be of medium size as from a previous experiment done in class I realize that changing the surface area of the marble chips would change the rate of reaction. I then used 100 cm3 of HCl and this would be the only variable that I will change. I decided to use the concentrations of 0.5M, 1.0M, 1.5M and 2.0M (1mole/dm). To make these different concentrations I added different proportions of distilled water to the 2 molar HCl. For the 2M solution I left the HCl alone, for the 1.5M solution I put 75 cm3 of HCl and 25 cm3 of distilled water. ...read more.

Middle

The results we achieved was as follows: Volume of Sodium Thiosulphate Volume of Water Concentration of Sodium Thiosulphate Time in seconds 1000 Time 50 0 0.15 22.70 44.05 40 10 0.12 29.26 34.18 30 20 0.09 40.58 24.64 20 30 0.06 66.25 15.09 10 40 0.03 139.45 7.17 I think that the results of the marble chips and HCl experiment will show the same results as this Sodium Thiosulphate experiment. As the higher the concentration the increased amount of ions per cm3 and therefore more frequent collisions between them, which then makes the experiment react faster. Another reason I think that the rate of reaction will increase is that the experiment is exothermic, this means that it will give itself more energy and therefore more collisions and faster collisions. Also in the 2.0M solution compared with the 0.5M solution there are much more HCl particles in the same volume so the are going to collide with each other more often. ...read more.

Conclusion

65.23 74.82 72.72 70.92 14.23 Analyzing Evidence and Drawing Conclusions From looking at my results and graph I am able to conclude that the more concentrated the acid the quicker the reaction happened and the faster the gas was produced. This is as I predicted and I think they match quite well as the rate of reaction graph is basically a straight line and the average time graph has an increasing gradient. Evaluating Evidence Overall this was a very successful experiment and everything went very smoothly, and that was why my results were very good, and I am able to make the conclusion that the higher the concentration the faster the rate of reaction. From looking at my results I can see that there were no poor results, which was a good thing, and it proves that everything went very well. There was no real source of error in the equipment. The only possibility was if the temperature of the acid had changed from when we did the first reading to the finish. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour 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 GCSE Patterns of Behaviour essays

1. ## In this investigation we are going to measure the rate of reaction of marble ...

3 star(s)

92 94 92 86-95 460 88 96 94 95 93 88-96 480 90 97 95 98 95 90-98 500 91 97 97 98 96 91-98 520 93 98 97 99 97 93-99 540 95 99 98 100 98 95-100 560 95 100 99 100 99 95-100 580 95 100 99

2. ## Investigating the Rate of Reaction Between Marble Chips and Hydrochloric Acid

An increase in concentration produces more collisions. The chances of an effective collision goes up with the increase in concentration. Only experimental observation reveals the link between concentration and reaction rates. * Safety As with any investigations great care should be taken and the experiment should be undertaken in a sensible manner.

1. ## Investigation of the reaction between marble chips &amp;amp; dilute hydrochloric acid.

In a low concentration acid, it has more moles of water than acid. High concentrated acids are stronger than low concentrated acid which means that high concentrated acid speeds up the rate of reaction this is because the acid breaks down the particles faster Surface Area affecting the rate of

2. ## Reacting Marble Chips with Dilute Acid.

Temp. (�C) Quantity Mass of Marble Chips (g) Time (s) 2.0 50 0 0 21 17 3.3 0 9 10 18 20 31 30 44 40 63 50 84 60 100 70 1.6 40 10 0 21 17 3.0 0 7 10 14 20 24 30 35 40 45 50 60 60 75 70 89 80 100 90

1. ## Investigating the rate Of reaction between Acid and marble

0.19 134.53 0.16 136.00 0.13 4.30 135.56 0.21 134.50 0.19 135.98 0.15 5.00 135.55 0.22 134.49 0.20 135.96 0.17 0.75 Molar Nitric Acid <-------------------Weight/grams--------------------> Time/Minutes Set 1 Difference 1 Set 2 Difference 2 Set 3 Difference 3 0.00 134.23 0.00 135.52 0.00 137.09 0.00 0.30 134.22 0.01 135.50 0.02 137.08

2. ## Investigate how varying the surface area of marble chips differs their rate of reaction ...

Next we will gather up all our equipment, Next we will get a clamp stand and attach a clamp to it and then attach a gas syringe holder to the clamp, when will make sure that the gas syringe holder is clamped very tightly to the clamp to make sure

1. ## INVESTIGATING THE RATE OF REACTION BETWEEN MARBLE CHIPS AND HYDROCHLORIC ACID

The rate for the reaction increases. Reaction rates are roughly doubled when the temperature increases by 10 degrees Kelvin. This means the rate can be quadrupled if the temperature is raised by 20 degrees Kelvin. It should be clear that if you can increase reaction rates by increasing temperature you can decrease reaction rates by lowering the temperature.

2. ## How increased concentrations of acid affect the rate of reaction between hydrochloric acid and ...

I will wear safety glasses for the experiment to ensure my safety. I predict that the reaction time will be quicker under higher concentrations of acid. So the gas syringe will pushed out further and quicker in high concentrations of acid and less and slower in low concentrations of acid.

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