0
Aim
To see how the mass of calcium oxide affects the temperature change produced in a reaction with water
Theory
Adding Calcium Oxide to water produces an exothermic reaction as aqueous Calcium Hydroxide is formed. The total energy released will increase as more bonds are broken by using a greater mass of Calcium Hydroxide
Equipment
CaO powder
De-ionised water
50 ml measuring cylinder
Insulating beaker
Balance (.01g resolution)
Temperature probe and data logger
Stirring rod
Method
In an insulating beaker combine 50ml of water with 1g of CaO
Stir and record the maximum temperature reached using a temperature probe and datalogger
Repeat the experiment by using fresh water and increasing the mass of CaO used by 1g
Safety
As CaO will react exothermically with water care should be taken to avoid contact with skin where reaction with moisture could cause irritation and in extreme cases burns.
What else can I help you with?
What is the difference between endothermicand and exothermic reaction?
An endothermic reaction absorbs energy, making its environment cooler. Ab exothermic reaction releases energy, making its environment warmer.
Why fat estimation by Gerber's method is an exothermic reaction?
The fat estimation by Gerber's method involves the reaction of sulfuric acid with fat in milk, leading to the formation of fatty acid esters. This reaction releases energy in the form of heat, making it an exothermic process. The amount of heat produced can be measured to determine the fat content of the sample.
What factors contribute to making a reaction exothermic?
Factors that contribute to making a reaction exothermic include the release of heat energy, formation of more stable products, and a decrease in the overall energy of the system.
Is the making of ice cubes an exothermic reaction?
exothermic. the energy flows out. exothermic. the energy flows out.
Is mixing sodium sulfite and bleach endothermic or exothermic?
Mixing sodium sulfite and bleach is an exothermic reaction. Heat is released during the reaction, making the surroundings warmer. This reaction should be performed with caution as it can produce toxic gases.
A reaction that releases energy as it occurs is classified as?
A reaction that releases energy is exothermic.
What is a sentence using the word exothermic reaction?
The compound then produced an extreme exothermic reaction, which singed the eyebrows of the unfortunate scientist standing next to it.
A chemical reaction that produces heat is called?
the name your looking for is an "exothermic" reaction, one in which heat energy is released to the surrounding atmosphere the other is an endothermic, which absorbs the energy around it making it a "cold" reaction
Is the reaction endothermic or exothermic, and what is the enthalpy of the reaction?
The reaction is exothermic, meaning it releases heat. The enthalpy of the reaction is negative, indicating that it is exothermic.
When iron rusts is it an endothermic or exothermic reaction?
It is an endothermic reaction because in endothermic reaction energy is added .In that reaction nitrogen does not react with oxygen without energy added in the shape current . In that reaction 3000`current is applieded to take reaction b/w nitrogen and oxygen
What is the type of heat reaction which occurs when heat is given off by the reaction?
Heat is released during an exothermic reaction.
What happens in a exothermic reaction?
In an exothermic reaction, heat is released to the surroundings. This typically results in an increase in temperature, and the surroundings feel warm. The reactants have higher energy than the products, and the reaction is often spontaneous.
