B. water will boil at a lower temperature on Venus than on Earth.
Explanation:
Because temperature and pressure are directly proportional... increase in pressure will increase in the atmospheric temperature.... Venus has higher pressure than earth that also means it has higher atmospheric temperature and as the temperature is already high the water will require lesser heat to boil
Answer:
?=-185.35
Explanation:
the formula is the following
![\frac{9*(K-273.15)}{5} +32=F](https://tex.z-dn.net/?f=%5Cfrac%7B9%2A%28K-273.15%29%7D%7B5%7D%20%2B32%3DF)
so if we apply it
with K=152.4
![\frac{9*(152.4-273.15)}{5} +32\\\\=\frac{9*(-120.75)}{5} +32\\\\=\frac{-1086.75}{5} +32\\\\=-217.35+32\\\\=-185.35\\\\F=-185.35](https://tex.z-dn.net/?f=%5Cfrac%7B9%2A%28152.4-273.15%29%7D%7B5%7D%20%2B32%5C%5C%5C%5C%3D%5Cfrac%7B9%2A%28-120.75%29%7D%7B5%7D%20%2B32%5C%5C%5C%5C%3D%5Cfrac%7B-1086.75%7D%7B5%7D%20%2B32%5C%5C%5C%5C%3D-217.35%2B32%5C%5C%5C%5C%3D-185.35%5C%5C%5C%5CF%3D-185.35)
Answer:
Chromatography is used to separate mixtures of substances into their components.They all have a stationary phase (a solid, or a liquid supported on a solid)
Explanation:
it's where the things stay still until the mobile phase moves through and takes the components
Answer:
The molar concentration of the final solution is 1.71 ![\frac{moles}{liter}](https://tex.z-dn.net/?f=%5Cfrac%7Bmoles%7D%7Bliter%7D)
Explanation:
Molarity is a way of expressing the concentration of solutions and indicates the number of moles of solute dissolved per liter of solution.
The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution.:
![Molarity (M)=\frac{number of moles of solute}{volume}](https://tex.z-dn.net/?f=Molarity%20%28M%29%3D%5Cfrac%7Bnumber%20of%20moles%20of%20solute%7D%7Bvolume%7D)
Molarity is expressed in units (
).
Then, the number of moles of solute can be calculated as:
number of moles of solute= molarity* volume
So, in this case, the final concentration can be calculated as:
![Final molarity (M)=\frac{Total number of moles of solute}{Total volume}](https://tex.z-dn.net/?f=Final%20molarity%20%28M%29%3D%5Cfrac%7BTotal%20number%20of%20moles%20of%20solute%7D%7BTotal%20volume%7D)
where, being 65 mL=0.065 L, 125 mL=0.125 L and 190 mL=0.190 L (because 1000 mL= 1 L):
- Total number of moles of solute= 0.065 L*0.513
+ 0.125 L*2.33
= 0.033345 moles + 0.29125 moles= 0.324595 moles - Total volume= 65 mL + 125 mL= 190 mL= 0.190 L
Replacing:
![Final molarity (M)=\frac{0.324595 moles}{0.190 L}](https://tex.z-dn.net/?f=Final%20molarity%20%28M%29%3D%5Cfrac%7B0.324595%20moles%7D%7B0.190%20L%7D)
Final molarity ≅ 1.71 ![\frac{moles}{liter}](https://tex.z-dn.net/?f=%5Cfrac%7Bmoles%7D%7Bliter%7D)
<u><em>The molar concentration of the final solution is 1.71 </em></u>
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