Chemistry Lab Question

[جميلة طوط]

The lab that we conducted in class is based on three substances given to us in class and we has to identify what they were from a list of forty-eight substances using several experiments such as: solubility, pH, conductivity, boiling/melting point, ion test, flame tests, etc.
For the lab write up, I need to mention what the dependent, independent, and controlled variables are; but I am not sure what they would be and whether I need to mention different variables for each unknown substance or for each experiment conducted.
I was thinking that some controlled variables could be temperature and pressure of the room (STP conditions), or distilled water. However, I’m not sure what the dependent /independent variables could be. If further information is needed, such as the results, I can post them.
Thank you, in advance!

[جميلة طوط]

sorry correction <<we has>> = we have

[Nader 3:16]

السلام عليكم
لما منشتغل بال (stp( ال melting and boiling pt are ind...اما بقية الاشياء بتكون dep واحياناً بكون لها علاقة ببعضها!
على سبيل المثال ال solubility تتأثر بال PH ...وال conductivity تتأثر بال solubility ,,,,

ممكن تحطي نموذج عن نتائج ال tests ?

[جميلة طوط]

So does that means that you don't need to mention what the dependent and independent variables are for each experiment. For example if the first experiment was boiling point do you need to say what the dependent /independent variables are for that specific experiment.
I will post the results

[Nader 3:16]

بس سؤال..
انتو لما عملتو ال tests لكل substance ,,,,عملتولهم كل شي,!?


انا المشكلة انكليزيتي ضعيفة ، وفهمت من السؤال كأنو معك 3 مواد بدك تعمليلهم identification من خلال سلسلة tests ,,,,هال tests هي عبارة عن مجموعة متغيرات ، قد تكون مستقلة او غير مستقلة لذاتها او الانسان يتحكم فيها...
هيك صح فهمي ؟

[جميلة طوط]

ال experiment عبارة عن 3 substances مجهولين لازم ينعرفو من خلال إجراء
solubility
ph
flame test
boiling and melting point
من خلال الداتا اللي بيتجمعوا من الإكسبريمانت بيجرى مقارنة مع ال list of properties تبعين ال substances

[جميلة طوط]

السؤال هوا
مثلا لل boiling point لازم ينءال أيشو ال dependant و ال independant
ولا عكل substance
ولا والله ماني عارفة كني ترجمت صح لأن بنتي كمان بدا مترجم للعربي

[جميلة طوط]

https://docs.google.com/a/qalamoun.com/document/d/1kMT-COKXA89kw97hPDeKZVXi7ds2TGw62CVb_XukE5A/edit

[أيمن غ القلموني]

Salam

me, i understand that u have 48 substance and u should identify 3 substances by differents tests

If i understood, that meen u must mention the differents variables for each substance

because each substance have his own character