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| Date | Subscriber Growth | Mentions | Channels | |
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Channel Posts
Why solution will boil at a higher temperature than will the pure solvent?
A/Because the solute will lower the vapor pressure of the solvent, so the temp. of the solution must be raised to make the solution's vapor pressure equal to the atmospheric pressure
| 2 | The vapor pressure of a solution of a non-volatile solute is equal to?
A/ The vapor pressure of the pure solvent at that temperature multiplied by its mole fraction | 0 |
| 3 |  No text... | 0 |
| 4 | Who is the key of all properties?
A/ vapor pressure lowering
Why he solute reduces the escaping tendency of the solvent?
A/because the amount of surface area available for the escaping of solvent molecules ...... وبي تكمله😬 | 0 |
| 5 | جبنة للمختبر دنشوف المي شلون يتبخر ؟ورا مابخرنا المي قررنا نضيفلة فد مادة غير متطايرة دوة مثلا ..لاحظنا الضغط البخاري قل lowering vapor pressire شنو السبب🤔 | 0 |
| 6 | An aqueos sol. Of a drug gave a b.p elevation of 0.103 °C .Calculate the approximate molal constant .what law will use first? | 0 |
| 7 | In
Osmotic pressure=RTm
R=.........atm.L/mol.deg | 0 |
| 8 | بهذا السؤال شنو القوانين الي حتستخدموها حتى تطلعونmolar mass? | 0 |
| 9 | No text... | 0 |
| 10 | Morse equation is: | 0 |
| 11 | The osmotic pressure is proptipnal with : | 0 |
| 12 | Which one is molal elevation constant? | 0 |
| 13 | When we add solute to the solvent the boilling point will increase ,why? | 0 |
| 14 | Which one will have the highes bolilling point
😂 | 0 |
| 15 | B.p of water is 1000 °C | 0 |
| 16 | M.w of water is : | 0 |
| 17 | عندك drugجيت دتذوبة ويةالمي 😌دتفكر وية نفسك هذا الدوة من اذوبةالذوبانية مالتة على شنو تعتمد؟اذكرت الكيميا ..تعتمد علىarrangmentترتيب الذرات ونوعها وبنفس الوقت الmolecilular weight كلما يزيد تقل ذوبانية الدوة...
اذا نوع الlphysical property مال الدوة | 0 |
| 18 | 2.Boilling point rlevation is a | 0 |
| 19 | 1.Colligative properties fepend mainly on the number and type of particlesin a sollution | 0 |
| 20 | #physics | 0 |
