Using absorbance readings, reaction rate and optimal levels can be concluded. ... After the initial reading, one ml of α-amylase was dropped and stirred into the to 70 ml solution. ... Since enzymes cannot cause inefficient reactions to occur, I can be sure that the reaction will either speed up or have no reaction with the enzyme. ... Beyond that temperature, however, the speed of the enzymatic reaction drops sharply. ... After the initial reading, one ml of α-amylase was dropped and stirred into the to 70 ml solution. ...

• Word Count: 1671
• Approx Pages: 7
• Has Bibliography
• Grade Level: High School

Time 1 (seconds) Time 2 (seconds) Average Reading. ... Anything which makes the acid and thiosulphate particles to collide more often speeds up the reaction. ... Having carried out the experiment once and taken the readings twice, the readings were rounded the same showing that they were fairly accurate. Although my first set of readings had quite a few anomalies. ... I could have failed to carry out temperature readings. ...

• Word Count: 1436
• Approx Pages: 6
• Grade Level: High School

For example some of the chemicals in the tap water may help to dissolve the marble chip creating a faster reaction speed and giving anomalous results. ... By doing it every 10 seconds it gave readings fairly quickly which was important as the gas would probably be produced very quickly and so results will also need to be taken at a relatively good speed. ...

• Word Count: 1418
• Approx Pages: 6
• Grade Level: High School

Enzymes are biological catalysts, meaning they speed up a reaction. ... The final random error that occurred had to do with temperature readings. ... If the thermometer used gave inaccurate readings, then it could change the outcome of the experiment. ...

• Word Count: 1941
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

Investigating the rate of reaction between sodium thiosulfate and dilute hydrochloric acid Background Research Word Equation for this reaction is: Sodium thiosulphate + Hydrochloric acid  Sodium Chloride + Sulfur Dioxide + Sulfur + Water Balanced Symbol Equation for this reaction is: Na2S2O3...

• Word Count: 3666
• Approx Pages: 15
• Has Bibliography
• Grade Level: High School