Answer:
Mass fraction: 73,6% n-hexane; 26,4% dichloromethane
Mole fraction: 73,0% n-hexane; 27,0% dichloromethane
Explanation:
With a basis of 100 mL:
Mass of n-hexane:
85 mL ×
= 55,7 g
Mass of dichloromethane
15 mL ×
= 20,0 g
Total mass = 20,0 g + 55,7 g = 75,7 g
Mass fraction of n-hexane:
=73,6%
Mass fraction of dichloromethane:
= 26,4%
Moles of n-hexane:
55,7 g ×
= 0,65 moles
Mass of dichloromethane
20,0g ×
= 0,24 moles
Total moles: 0,65 moles + 0,24 moles = <em>0,89 moles</em>
Molar fraction of n-hexane:
=73,0%
Molar fraction of dichloromethane:
= 27,0%
I hope it helps!
Answer:
The answer to your question is D.
Explanation:
Potassium has 4 energy levels in the first level (A) has only 2 electrons,
in the second energy (B) level has 8 electrons, in the third energy level (C) also has 8 electrons and in the fourth energy level has only one electron.
Valence electrons are located in the outermost shell so Potassium has only one electron located in the shell D.
<span> 3.56g of AgCL will be produced</span>
Answer:
I might be wrong but I'm pretty sure its B) Robin
Explanation:
Bc it says which animal gets its shelter by interacting with a living part of the environment and a robin is interacting with a tree branch and its a <u>living part of the environment.</u>
<u> AGAIN SO SRRY IF ITS WRONG</u>
If you count the methionine expressed for the start codon as part of the precursor protein, then (81+1)*3. (The start codon is expressed, but the stop codon isn't.)