The molar mass of a substance is the mass in grams of one mole of that substance. This mass is given by the atomic weight of the chemical unit that makes up that substance in atomic mass units....
hope that helps
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Answer:
- Absorbance of sample solution = 1.21
- Absorbance of reagent blank = 0.205
Explanation:
In order to solve this problem we need to keep in mind the <em>Lambert-Beer law</em>, which states:
Where ε is the molar absorption coefficient, b is the length of the cuvette, and C is the concentration.
By looking at the equation above we can see that if ε and C are constant; and b is 5 times higher (5.00 cm vs 1.00 cm) then the absorbance will be 5 times higher as well:
- Absorbance of sample solution = 0.242 * 5 = 1.21
- Absorbance of reagent blank = 0.041 * 5 = 0.205
We can find it by 2n^2 formula
So
First shell is maximum of 2
Second shell is of 8
Third shell is of 18
Fourth shell is of 32
Answer:
hydrogen is the chemical element with the symbol H and atomic number 1. with the standard atomic
