Answer:
I'll explain.
Explanation:
The molecules of two different elements, nitrogen and oxygen, make up about 99 percent of the air. The rest includes small amounts of argon and carbon dioxide. Oxygen is the life-giving element in the air. You can tell because they're on the periodic table which is a table for elements.
Answer:
3.62×10³ L/mol
Explanation:
Beer-Lambert law relates the absorbance of a sample and its concentration. Its formula is:
A = ε×C×l
<em>Where A is absorbance of the sample, ε is molar absorptivity (A constant f each sample), C its concentration and l is path length</em>
<em />
Now, the formula obtained was:
y = (3.62×10³ L/mol) x
<em>Where Y ia absorbance = A, x its concentration = C and 1cm is path length.</em>
You can write:
A = (3.62×10³ L/mol)×C×l
That means, molar absorptivity of your sample under the meaured conditions is:
<h3> 3.62×10³ L/mol</h3>
<em />
Answer:
D.) Science is always changing, so experiments need to be repeated
Explanation:
Answer:
i think option a is correct answer because when there is low temperature then the kinetic enegry will be very less and the atoms moves very slowly.