A student investigated the temperature change that took place when different salts were dissolved in water - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2023 - Paper 2
Question 2
A student investigated the temperature change that took place when different salts were dissolved in water.
The student used the following method.
step 1 pour 50 c... show full transcript
Worked Solution & Example Answer:A student investigated the temperature change that took place when different salts were dissolved in water - Edexcel - GCSE Chemistry Combined Science - Question 2 - 2023 - Paper 2
Step 1
mass of empty boiling tube
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The mass of the empty boiling tube is given as 22.52 g.
Step 2
mass of boiling tube + 2 spatula measures of a salt
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The mass of the boiling tube along with the salt is 24.16 g.
Step 3
Calculate the mass of salt
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To find the mass of the salt, we subtract the mass of the empty boiling tube from the mass of the boiling tube with salt:
Mass of salt=24.16g−22.52g=1.64g
Thus, the mass of salt added to the water is 1.64 grams.
