• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

To investigate how the concentration of hydrochloric acid affect the speed of reaction with marble chips.

Extracts from this document...


Marble chips Experiment. Pilot Aim: To investigate how the concentration of hydrochloric acid affect the speed of reaction with marble chips. Prediction: I predict that the more hydrochloric acid there is the faster the chemical reaction. I also predict that the more dilute the acid is (the more water there is with the acid) the slower the chemical reaction. Hypothesis: I predicted what I did because the more concentrated the hydrochloric acid is the more energy there will be and so therefore the more collisions there will be. More collisions occur when there are more acid particles. It is the acid particles that create the collisions and it is the collisions that lead to the reaction. In a dilute acid or a mixture of more water than acid, there will be a slower reaction because there are less acid particles. ...read more.


In this case I will time how long it takes for the water to reach the '50 ml' mark. If I keep the same stop point at '50 ml', I will be able to recognise the affects on the speed of reaction with the different concentrations. Fair Test: I will keep the same overall amounts of mixture of hydrochloric acid and water in the conical flask. The amount of mixture will be 30 ml. I will use the same stop point which shall be at 50 ml. I will keep the same mass of marble chips, which will be 10g and the surface area of the marble chips. I will carefully wash out the equipment and apparatus to prevent contamination of the apparatus and keep the temperature in which I will be experimenting in at room temperature, around 25 degrees Celsius. Apparatus: Conical Flasks. Measuring cylinders. A large bowl. *Bee hive.* Tap water. Bung with tube. ...read more.


7. Add the 10g of marble chips. 8. Then place the bung on top of the conical flask to stop gas escaping. 9. Start the clock immediately! 10. When the water in the measuring cylinder falls to the 50 ml mark, stop the clock. 11. Record the time in a results table similar t the one below. 12. now repeat the steps for 25ml HCl:5ml water 13. Repeat for 20ml HCl:10ml water 14. Repeat for 15ml HCl:15ml water 15. And repeat for 10ml HCl:20ml water 16. Repeat all the above steps twice more so by the end of this experiment you should have three results for all 5 measurements. Results Table: Hydrochloric acid molarity Amount of acid (ml) (3m) Amount of water (ml) Stock (ml) Mass Of Marble Chips (g) Stop point on cylinder Time taken to reach the stop point (s) 30 0 30 10 50 25 5 30 10 50 20 10 30 10 50 15 15 30 10 50 10 20 30 10 50 Nick Blount ...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 Aqueous 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

See related essaysSee related essays

Related GCSE Aqueous Chemistry essays

  1. Investigating the effect of concentration on the rateof reaction between marble chips and Hydrochloric ...

    This was probably caused by using marble chips that had a larger surface area to the ones I had been using before. This was due to the fact that I had to slightly adjust the size of the marble chips I was using, as there were no more marble chips

  2. Investigate how the concentration of 10 ml of hydrochloric acid affects the rate of ...

    will collide so increasing the reaction rate. When hydrochloric acid (HCl) is added to calcium carbonate (CaCO3) the two substances react giving this equation: CaCO3 + 2HCl � CaCl2 + H2O + CO2. This shows that when the two react, calcium chloride, water and carbon dioxide are all given off and the gas that fills the measuring cylinder is CO2.

  1. to investigate how the concentration affects the rate of the reaction

    this experiment are very accurate and they are very easy to use. They also help to make my experiment fair. FAIR TEST I will make my experiment fair by doing the following things * always use test tubes of the same size * use the same mass of magnesium and

  2. Experiment to see how the quantity of marble chips affects the rate of reaction ...

    It is also not very clear what the universal indicator reads, as it is colour coded, you could be several PH points off what it actually is. Reacting an acid with a carbonate is safe, and it is easy to record the amount of carbon dioxide produced using an upside down measuring cylinder.

  1. Find out what changes the speed of the reaction between marble chips and acid.

    I will do a preliminary experiment, before I do the real experiment. It is useful to do a preliminary experiment because it shows you where you have gone wrong, so you can correct any mistakes before doing the real experiment.

  2. To find the effects of the concentration of hydrochloric acid on the rate of ...

    Put the marble chips into the conical flask, then at the same time put the water and acid solution into the conical flask and start the stopwatch. Immediately after putting the water and acid solution into the conical flask put the bung in covering the top.

  1. An investigation into how changing one variable influences the rate of reaction between marble ...

    * I will try to keep the surface area of the marble chips constant in every experiment by keeping the mass of the marble chips constant in every experiment. The surface area of the marble chips plays a great part in this experiment and when you select your chips there might be some powder on them that must be removed.

  2. How Does Changing the Concentration Of Hydrochloric Acid Affect the Speed It Reacts With ...

    I will be measuring the volume of gas produced and also how many gas bubbles are given off. Prediction: I think that the higher the molar of HCl, the quicker the reaction will be. I think this because there will be more HCl particles in the 2m than the 1m,

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