Answer:
yeah
Explanation:
well, probably. they kicked me out of math class because I put a live chicken in the classroom and it pooped everywhere, so I had to clean it up and bring it back where I found it (which is the side of the road.)
Answer : The molecular weight of this compound is 891.10 g/mol
Explanation : Given,
Mass of compound = 12.70 g
Mass of ethanol = 216.5 g
Formula used :
![\Delta T_f=i\times K_f\times m\\\\T_f^o-T_f=i\times T_f\times\frac{\text{Mass of compound}\times 1000}{\text{Molar mass of compound}\times \text{Mass of ethanol}}](https://tex.z-dn.net/?f=%5CDelta%20T_f%3Di%5Ctimes%20K_f%5Ctimes%20m%5C%5C%5C%5CT_f%5Eo-T_f%3Di%5Ctimes%20T_f%5Ctimes%5Cfrac%7B%5Ctext%7BMass%20of%20compound%7D%5Ctimes%201000%7D%7B%5Ctext%7BMolar%20mass%20of%20compound%7D%5Ctimes%20%5Ctext%7BMass%20of%20ethanol%7D%7D)
where,
= change in freezing point
= temperature of pure ethanol = ![-117.300^oC](https://tex.z-dn.net/?f=-117.300%5EoC)
= temperature of solution = ![-117.431^oC](https://tex.z-dn.net/?f=-117.431%5EoC)
= freezing point constant of ethanol = ![1.99^oC/m](https://tex.z-dn.net/?f=1.99%5EoC%2Fm)
i = van't hoff factor = 1 (for non-electrolyte)
m = molality
Now put all the given values in this formula, we get
![(-117.300)-(-117.431)=1\times 1.99^oC/m\times \frac{12.70g\times 1000}{\text{Molar mass of compound}\times 216.5g}](https://tex.z-dn.net/?f=%28-117.300%29-%28-117.431%29%3D1%5Ctimes%201.99%5EoC%2Fm%5Ctimes%20%5Cfrac%7B12.70g%5Ctimes%201000%7D%7B%5Ctext%7BMolar%20mass%20of%20compound%7D%5Ctimes%20216.5g%7D)
![\text{Molar mass of compound}=891.10g/mol](https://tex.z-dn.net/?f=%5Ctext%7BMolar%20mass%20of%20compound%7D%3D891.10g%2Fmol)
Therefore, the molecular weight of this compound is 891.10 g/mol
Boiling points are a measure of intermolecular forces. The intermolecular forces increase with increasing polarization of bonds. Boiling point increases with molecular weight, and with surface area.
Answer:
its your life
Explanation:
how does it personally relate to <u>yours</u>?
Answer:
I was jumping on an trampoline and my sisters hare and mine started floating up from the static electricity