The absorbance of a crystal violet solution in water (density is 1.00 g/ml) is measured in a 1.0 cm cuvette. the absorbance is 0.614 and the molar absorptivity coefficient is the molecular weight of crystal violet is 407.98 g/mol. what is the molar concentration of the solution?

Answer : The molar concentration of solution is

Explanation :

Using Beer-Lambert's law :

where,

A = absorbance of solution  = 0.614

C = molar concentration of solution = ?

l = path length = 1.0 cm

= molar absorptivity coefficient =   (assume)

Now put all the given values in the above formula, we get:

Therefore, the molar concentration of solution is

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.