Answer:
Concentration of the solution is 0.376M
Explanation:
Lambert-Beer's law describes the absorbance of a solution that is directely proportional to concentration of the solution, molar absorptivity and path length. The law is:
A = ε×C×l
<em>Where A is absorbance (0.699 for Red Dye #3), ε is molar absorptivity (1.217L mol⁻¹cm⁻¹), C is concentration of solution and l is path length (1.526cm)</em>
Replacing:
0.699 = 1.217L mol⁻¹cm⁻¹×C×1.526cm
C = 0.3764 mol/L
<em>Concentration of the solution is 0.376M</em>
You would use the formula:
n =

Where m is the mass, and M is molar mass (the periodic table would be used for this)
In this case, we need to rearrange the formula to find m
m = nM
= 5.40 x 6.941
= 37.5g
Hope this helped! Ask me if there's any part of the working you don't understand :)
Answer:
Option 2, 3, and also 6 btw
Explanation:
The other guy was wrong
Answer:
Explanation: Perhaps the most familiar example of electrolysis is the decomposition (breakdown) of water into hydrogen and oxygen by means of an electric current. The same process can be used to decompose compounds other than water. Sodium, chlorine, magnesium, and aluminum are four elements produced commercially by electrolysis.
The chlorophyll inside the leaves