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Find out if the temperature of the hydrochloric acid affects the amount of Co2 when it is reacted with CaCo3

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Introduction

Effect Of Temperature Aim: My aim for this experiment is to find out if the temperature of the hydrochloric acid affects the amount of Co2 when it is reacted with CaCo3 Plan: I am going to measure the amount of gas that comes off CaCo3 when in hydrochloric acid at different temperatures - 60, 55, 50, 45, I chose these temperatures because I think more gas will come off it the hydrochloric acid is warmer with a gas syringe. I Chose a gas syringe instead of a measuring cylinder because I thought it would be more accurate and it would save having to change over the measuring cylinders. I will carry out the experiment at each different temperature four times Prediction: I think that the more I heat up the Hydrochloric acid the more gas will come off, because the particles are ...read more.

Middle

quickly put the bung on the test tube 13. take readings from the gas siringe every 10 secs 14. repeat this 3 times 15. tidy up Safety: I will wear safety goggles, I will stand up incase the cid falls onto my knee, I will make sure the acid does not heat over 60 degrees Fair Test: I will use the same amount of Hydrochloric acid each time, I will use the same amount of CaCo3 each time, I will use the same stop clock each time Results: 1) 60 Time Volume Of Gas 10 45 20 60 30 63 40 79 50 81 60 83 55 Time Volume Of Gas 10 25 20 43 30 55 40 65 50 70 60 73 50 Time Volume Of Gas 10 34 20 50 30 64 40 72 50 79 60 83 45 Time Volume Of Gas 10 33 20 45 30 51 40 59 50 61 60 65 2) ...read more.

Conclusion

39 20 44 30 49 40 51 50 53 60 54 Average - Temperature 45 50 55 60 10 37 45 28 36 Time 20 44 55 41 46 30 49 62 50 52 40 53 67 55 56 50 56 70 60 57 60 57 72 61 59 Volume Of Gas Conclusion: I have found out by looking at my results that the temperature of the hydrochloric acid does not make a significant change in the amount of C02 coming off the CaCo3, my prediction was wrong. Errors and improvements: If I was to do this experiment again I would try to put the bung into the test-tube more quickly as some of my results show that I lost a lot of gas when I was putting the bung in, I didn't really prove what I had hoped to in my prediction. ...read more.

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