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Sav [38]
2 years ago
11

Help I don’t know the answer

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
4 0
I think it’s letter c
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How to calculate concentration with just the absorbance and % transmittance measurements from a spectrometer? ​
Natali [406]

Answer:

A=ε*l*c

A= 2- log₁₀ % T

Step-by-step explanation:

There is a linear relationship between the concentration of a sample and absorbance according to Beer-Lambert Law.

A=ε*l*c

where;

A=absorbance

ε=absorption coefficient

l=path length

c=concentration

Because % transmittance is transmittance value multiplied by 100 then, the equation that will allow us calculate absorbance from % transmittance value will be;

A= 2- log₁₀ % T where T is transmittance.

8 0
3 years ago
Please I need help with some geometry. An image with the question is attached.
Vladimir [108]

Answer:

Not enough information

Step-by-step explanation:

You gave the height, but there is no length. You need both the height and length because the area of a triangle is 1/2bh

4 0
3 years ago
If the output and input of a linear equation are proportional, where will the graph of the equation cross the x-axis?
mars1129 [50]

Answer:??? I don't know

Step-by-step explanation:

???

5 0
2 years ago
Factor the polynomial: –3x^4 – 9x^3 + 15x^2
spayn [35]

Answer:-3x^2(9x^5-5)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Select the correct answer.
Pani-rosa [81]

Answer:

D

Step-by-step explanation:

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3 years ago
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