Research Experiment On The Rate Of Reaction Between Eno And Water

NUR ADRIANA BT NOR AZAM

IBH14902

IB108

Research Question

How does increasing in temperature of water will affect the rate of reaction between Eno (type of antacids medicine) and water by measuring the time taken for the lid of plastic container to pop out?

Objective

To study the rate of reaction between Eno (type of antacids medicine) with different temperature of water when volume of water, quantity of antacids medicine used size of plastic container used are constant.

Hyphotesis

The rate of reaction between Eno and water with highest temperature is the highest compared to its reaction with water with lower temperature. In this experiment, the rate of reaction will be measured based on the time taken for the lid of plastic container

Variables

Ways to control variables

Independent :

Temperature of water used Heat the water with different temperature and measure it using thermometer which are 5˚C , 28˚C, 40˚C, 60˚C and 80˚C

Dependent :

Rate of reaction between Eno and water Measure the time taken for the lid of plastic container to pop out using stopwatch.

Calculate the rate of reaction by using the formula :

rate= 1/t

Controlled : Volume of water Amount of Eno used Size of plastic container. Measure the amount of water using 20 cm3 measuring cylinder Weigh and fix the amount of Eno used that is 1g using electronic weighing balance Use the same size of plastic container which is 40 cm3 in volume.

Table 1 shows the variables and ways to control all the variables of the experiment

Materials and Apparatus

Material and apparatus Quantity

Eno (5.00 ± 0.01 g)

Plastic container 5

Water (100.0 ±

This is because, overheating of thermometer may cause expansion or mercury and may cause breakage of thermometer.

Steps to reduce errors For the temperature of water at 5ºC , thermometer has been calibrated to increase the precision of the reading. This was done by inserting the thermometer inside the styrofoam cup filled with ice cubes and pre-cooled water . When the thermometer showed reading of 0ºC, the thermometer has been calibrated and reached the ice point. To reduce parallax error, the reading of the measurement using thermometer and measuring cylinder is viewed at the eye level and at the meniscus.

Qualitative Data Once the water was added inside the plastic container, the Eno reacted with water by dissolving it. Effervescence occurred as carbon dioxide gas has been released which caused bubbling inside the plastic container. The lid of plastic container popped out when gas inside the container pushed against it at higher pressure. When higher temperature of water was added, the lid of plastic container popped out at higher speed but when lower temperature of water was added, the speed of which the lid of plastic container popped out was