Documentation Kf.docx

DOCUMENTATION No

STEPS Tools and Materials

1a Test tube 1

Entered 10 mL water into test tube

Measure the temperature

+ a half spoonful of NaOH Solid

PICTURE

Shake until dissolve and measure the temperature. Repeated until 3 times.

b Test tube 2

Entered 10 mL water into test tube

Measure the temperature

+ a half spoonful of KNO3 Solid

Shake until dissolve and measure the temperature. Repeated until 3 times.

C Test tube 3

Entered 5 mL HCl into test tube

Measure the temperature

Add ½ spoonful of Mg metal

Shake until dissolve and measure the temperature. Repeated until 3 times.

2

Weighed of a half spoonful spatula Ba(OH)2 solid and NH4Cl solid

Put in a plastic box where the film rools

Measure the temperature

Closed the box and shake it

Open the box and smell the gas that occur, measure the temperature. Repeated until 2 times