What affects the rate if reaction more, increasing concentration or increasing temperature?

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What affects the rate if reaction more, increasing concentration or increasing temperature?

Concentration Experiment:

Plan:

Try to get the rate of reaction to increase while increasing the amount of concentration. I will use hydrochloric acid and calcium carbonate in my experiment. I will simply have about 250 mm of hydrochloric acid in a clonical flask and add magnesium about 3 grams and I will work it up to be about 6 grams. I will use the same amount of CaCo3 acid but increase the HCL. I will time how long it takes for the magnesium to stop reacting and then stop the timer and record and do this several times while increasing the concentration.

Materials:

  • Conical Flask
  • Three unit scale (grams)
  • Calcium Carbonate
  • Hydrochloric acid
  • Timer
  • Measuring cylinder

Method:

  1. Gather materials
  2. Get measuring cylinder and measure up to 250 mm of hydrochloric acid
  3. Get amount needed for CaCo3
  4. Get timer
  5. Add calcium carbonate to hydrochloric acid and start the timer
  6. Wait till CaCo3 stops reacting and stop timer
  7. Record data and repeat process until the amount needed for CaCo3 is done
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Concentration of acid= 1 molar

Amount of CaCo3= 1.5 grams

For these results I did take me a while to set it up since I was working alone and I had to find someone to help me read the amount of volume. As you can see it did take quite some time for the CaCo3 to start reacting. But once it had reacted it went up drastically and it the volume increased very quickly. We even got past the limit (100) and wrote down what we thought it might be (103).

Concentration of acid: 1.5 molar

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