Yerty Mejia

Report
2012
Percentage of mixture
Mr.JP
Stefany
Chemistry 2A
Report
2012
Percentage of mixture
Mr.JP
Stefany
Chemistry 2A

Checkup
* What solventwill ypu use in this lab to dissolve the salt in the mixture?
A/ we will use water

* Should you measure the amount of solvent you will add to the mixture?Why or why not
A/Yes! we should measure because we will know what amount we are putting into.
* How will you separate the solute from the solvent?
A/ puttingone in one container and the other one in the other container.
* How will you calculate your percent recovery?
A/By knowing what amount of water are you puttinginto.
Procedure
Wash and thoroughly dry a 150 mL beaker and an evaporating dish.
Beaker+Salt mas=116g Dish=48.47 Filter paper=1.15g Sand=117.35g
We find themass of the beaker, the dish ,and a piece of dry filter paper to the nearest 0.01g.(record1-30)
Place a beaker 1-2g of a mixture of salt and sand in the 150mLbeaker.
We find a the mass of the beaker and its contents to the nearest 0.01(record:4)
Data
Mass of 150mL beaker->64.69g
Mass of evaporating dish->49.51g
Massof filter paper->1.15g
Mass of beaker and mixture_> 49.28g
Mass of filter paper and sand->2.21g
Mass of evaporating dish and salt->52.21g
Analysis1 what was the mass of the mixture before the separation?
15.41g
2. how much sand did you re recover?
1.06g
3.How mmuch salt did yoyu recover?
3.2g
4. whatwas the percentage of the sand in the mixture?
47.96%
5. What is the percentage of salt in the mixture?
6.12%
6. w2hat is your total percent recovery?
54.08%