Variables
- Independent - concentration of HCl
- Dependent - temperature change
- Control - HCl and NaOH must be same amount and same temperature
Steps
1. Measure 25 cm³ of 0.25 mol/dm³ of HCl and NaOH in seperate beakers
2. Place beakers in water bath set to 25 °C until both are 25 °C
3.Add the HCl followed by the NaOH to a polysterene cup with a lid
4.Take temperature every 30 seconds and record highest temperature
5.Repeat steps 1-4 with 0.5 mol/dm³ and 1 mol/dm³ of hydrochloric acid
Comments
No comments have yet been made