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

Concnetraion Hydorchloric Acid

Extracts from this document...


How does changing the Concentration of Hydrochloric Acid Affect the Rate of Reaction between Hydrochloric Acid and Magnesium? Dependent Variable Volume of Hydrogen Produced - the volume of hydrogen produced in cm3 will be affected by the independent variable which in this case is the concentration of the hydrochloric acid. There is no way in which the volume of hydrogen produced can be controlled however make sure none is lost by making sure that the gas syringe is correctly connected. Measurements will be taken every 30 seconds for the volume of hydrogen produced for 5 minutes. Independent Variable Concentration - the variable which will be controlled is the concentration of the hydrochloric acid. The concentrations which will be used are 2M, 1.8M, 1.6M, 1.4M, 1.2M, 1.0M, 0.8M, 0.6M, 0.4M and 0.2M. The concentrations will be changed by using different measurements of hydrochloric acid and water. ...read more.


This will ensure that the test will be fair As I am using the same length and same coil of magnesium the mass should always be kept constant. Mass - The mass of the magnesium will be kept constant throughout the experiment as the length and coil of magnesium is always kept constant. Other ways in which the experiment will be controlled is by using the same conical flask and gas syringe. I will also be using the same measuring equipment to measure out the hydrochloric acid and the water for all the concentration while also using the same ruler Method 1. Measure out the 50 cm3 of the 2 mol dm-3 hydrochloric acid using one of the measuring cylinders. Once measured out pour the 50 cm3 hydrochloric acid into the 100 cm3 conical flask. 2. Set up the apparatus as shown in the diagram in the page before, ensuring that the gas syringe is secure so that no hydrogen gets lost. ...read more.


To find out how the rate of reaction progresses throughout the experiment work out the rate of reaction for the volume of hydrogen produced every 30 seconds for 5 minutes . Safety When handling the hydrochloric acid make sure that care is taken. Avoid contact with the eyes or skin as it can cause serious permanent damage. If contact is made with the eye, immediately flush the eye with water for ten minutes then seek medical help, while if contact is made with the skin, wash area with plenty of water and remove any contaminated clothing. If swallowed drink plenty of water and seek medical help. Always wear safety glasses when handling hydrochloric acid. Apparatus 2M Hydrochloric Acid Water Magnesium Ribbon Clamp Stand Delivery Tube + Single holed bung Gas Syringe 100cm3 Conical Flask 2x 100cm3 Measuring Cylinder Ruler Stop Watch ...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 Changing Materials - The Earth and its Atmosphere section.

Found what you're looking for?

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

Here's what a teacher thought of this essay

This is a well written partial report. It is limited to two stars as it is incomplete. There specific strengths and improvements suggested throughout. There is also additional guidance provided for the content that is missing.

Marked by teacher Cornelia Bruce 18/04/2013

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 Changing Materials - The Earth and its Atmosphere essays

  1. Investigating the heating and cooling curves of stearic acid wax.

    recordings to form a smooth curve, instead the temperature increased up and then it went down again. To make this a fair test I could use a draught shield. This could help for some more accurate temperature recordings. The reason that I would use a shield, is to help the

  2. Indirect determination of enthalpy change of decomposition of sodium hydrogen carbonate by thermochemical measurement ...

    Breaking bonds absorbs energy (it is endothermic), whereas bond forming liberates it (it is exothermic). If the total energy needed to break bonds exceeds that liberated when the new ones form, the reaction will be endothermic. If, however, the total energy needed to break bonds is smaller than that liberated when the new ones form, the reaction will be exothermic.

  1. The aim of this experiment is to answer the following question: What is the ...

    the reaction starts at the desired temperature, and does not have to be raised to that temperature. :) I will use sterilised equipment throughout so that there is no chance of contamination, as this could affect the reaction. :) I will also use the same equipment all the way through to ensure that no other contaminants can enter the mixtures.

  2. Free essay

    Chemistry investigation

    The hydrated magnesium chloride can be extracted from brine or sea water. Anhydrous magnesium chloride is the principal precursor to magnesium metal, which is produced on a large scale. Preliminary experiments: Method: In this preliminary experiment I choose not to alter anything but to observe how the temperature increased within the time of the reaction.

  1. To investigate three factors that affect the rate of cooling a liquid and to ...

    67?C 71?C 76?C 400 seconds 66?C 70?C 75?C 440 seconds 63?C 68?C 73?C 480 seconds 62?C 66?C 71?C 520 seconds 60?C 65?C 71?C 560 seconds 59?C 64?C 70?C 600 seconds 58?C 62?C 69?C 640 seconds 56?C 61?C 68?C 680 seconds 55?C 60?C 67?C 720 seconds 54?C 59?C 65?C Experiment 2

  2. "Complexometric Determination of Nickel using EDTA".

    I then pipette 20cm of the nickel salt solution into a conical flask, and diluted the solution to 100cm with deionised water 7. Next I added 0.05g of murexide indicator to the diluted salt along with 10cm of ammonia chloride solution 8.

  1. The aim of this experiment is to determine the rate of reaction between thiosulphate(Na2S2O3) ...

    If the surface area is small (large marble chips), the acid particles have a smaller surface area to react with even though the volume is the same. Regardless of the total amount of molecules in the chip, only the molecules on the surface will collide (react) with the hydrochloric acid.

  2. Factors affecting the rate of Diffusion.

    If anything is spilled, it must be wiped up immediately as it might be harmful to other people unaware of what it is. Prediction I predict that as the concentration of hydrochloric acid increases, the time taken for the acid to diffuse into the agar decreases and the rate (1000/time in seconds).

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