Compounds with different boiling points - b.
Only because<span> fractional distillationworks by having a temperature gradient in the column therefore different length hydrocarbons condence at different rays of different temperatures.This works because longer chain hydrocarbons have higher boiling points. </span>
Answer:
The answer is C. the energy transferred between objects at different temperatures.
Explanation:
I did some research, I hope this helps.
You add the protons of each atom together. The fact that it is an ionic compound shouldn't bother you at all.
Answer:
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Explanation:
<u>1. Calculate the number of moles of NiCl₂</u>
a) Identify the known variables
- V =0.800 liters
- M = 0.531M
- n = ?
b) Formula
![M=\dfrac{n}{V}](https://tex.z-dn.net/?f=M%3D%5Cdfrac%7Bn%7D%7BV%7D)
c) Clear n
![n=M\times V](https://tex.z-dn.net/?f=n%3DM%5Ctimes%20V)
<u>g) Substitute and compute</u>
![n=0.531M/times 0.800liters=0.4248mol](https://tex.z-dn.net/?f=n%3D0.531M%2Ftimes%200.800liters%3D0.4248mol)
<u>2. Convert moles to grams</u>
a) molar mass of NiCl₂
- 129g/mol (shown in the problem)
b) Unit canceling method
Use the factors in order to cancel the units to obtain grams
![0.4248mol\times 129\dfrac{g}{mol}=54.7992g](https://tex.z-dn.net/?f=0.4248mol%5Ctimes%20129%5Cdfrac%7Bg%7D%7Bmol%7D%3D54.7992g)
Note that the mol unit appears on the numerator and denominator, so it cancels leaving just g (grams).
c) Round to 3 signficant figures
![54.8g](https://tex.z-dn.net/?f=54.8g)