2 Chemical properties of Bromine (Br):
Melting point: -7.2 degrees Celsius
Boiling Point: 58.8 degrees Celsius
C.
They broke down mixtures by chemical means.
Answer:
0.00172 M
Explanation:
According to the Lambert's Beer law:-

Where, A is the absorbance
l is the path length
is the molar absorptivity
c is the concentration.
If a graph is plotted between the concentration and absorbance, then the slope is:-
. So,

<u>0.00172 is the molar concentration of
in the unknown solution.</u>