Answer:
106.785 kPa, I believe this is correct!
Explanation:
The question is incomplete, here is the complete question:
A murexide soution has a concentration of
and an absorbance of 1.850 and the path length is 1 cm. What is the molar absorptivity of the solution?
<u>Answer:</u> The molar absorptivity coefficient is ![5255.7M^{-1}cm^{-1}](https://tex.z-dn.net/?f=5255.7M%5E%7B-1%7Dcm%5E%7B-1%7D)
<u>Explanation:</u>
To calculate the molar absorptivity coefficient, we use the equation given by Beer-Lambert law, which is:
![A=\epsilon Cl](https://tex.z-dn.net/?f=A%3D%5Cepsilon%20Cl)
where,
A = absorbance = 1.850
= molar absorptivity coefficient = ?
C = concentration of the solution = ![3.52\times 10^{-4}M](https://tex.z-dn.net/?f=3.52%5Ctimes%2010%5E%7B-4%7DM)
l = path length = 1 cm
Putting values in above equation, we get:
![1.850=\epsilon\times 3.52\times 10^{-4}M\times 1cm\\\\\epsilon=\frac{1.850}{3.52\times 10^{-4}\times 1}=5255.7M^{-1}cm^{-1}](https://tex.z-dn.net/?f=1.850%3D%5Cepsilon%5Ctimes%203.52%5Ctimes%2010%5E%7B-4%7DM%5Ctimes%201cm%5C%5C%5C%5C%5Cepsilon%3D%5Cfrac%7B1.850%7D%7B3.52%5Ctimes%2010%5E%7B-4%7D%5Ctimes%201%7D%3D5255.7M%5E%7B-1%7Dcm%5E%7B-1%7D)
Hence, the molar absorptivity coefficient is ![5255.7M^{-1}cm^{-1}](https://tex.z-dn.net/?f=5255.7M%5E%7B-1%7Dcm%5E%7B-1%7D)
The ionic compound of Fe3+ and SO4 2- would be Fe2(SO4)3 or Iron (III) sulfate. <span>It is a rhombic crystalline salt and soluble in water at room temperature. It is used in dyeing as a </span>mordant<span>, and as a coagulant for industrial wastes.</span>
Answer:
is the volume of the air in the balloon after it is heated.
Explanation:
To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
(at constant pressure)
where,
are the initial volume and temperature of the gas.
are the final volume and temperature of the gas.
We are given:
![V_1= 1.31\times 10^6 L\\T_1=11^oC=(11+273.15)K=284.15K\\V_2=?\\T_2=121^oC=(121+273.15)K=394.15 K](https://tex.z-dn.net/?f=V_1%3D%201.31%5Ctimes%2010%5E6%20L%5C%5CT_1%3D11%5EoC%3D%2811%2B273.15%29K%3D284.15K%5C%5CV_2%3D%3F%5C%5CT_2%3D121%5EoC%3D%28121%2B273.15%29K%3D394.15%20K)
Putting values in above equation, we get:
![\frac{1.31\times 10^6 L}{284.15 K}=\frac{V_2}{394.14 K}\\\\V_2=\frac{V_1\times T_2}{T_1}](https://tex.z-dn.net/?f=%5Cfrac%7B1.31%5Ctimes%2010%5E6%20L%7D%7B284.15%20K%7D%3D%5Cfrac%7BV_2%7D%7B394.14%20K%7D%5C%5C%5C%5CV_2%3D%5Cfrac%7BV_1%5Ctimes%20T_2%7D%7BT_1%7D)
![V_2=1.82\times 10^6 L](https://tex.z-dn.net/?f=V_2%3D1.82%5Ctimes%2010%5E6%20L)
is the volume of the air in the balloon after it is heated.
<span>The energy in coal comes from energy that was
stored in giant plants that lived hundreds of millions of years ago in
swamp forests, even before the dinosaurs! When these giant plants and
ferns died, they formed layers at the bottom of the swamps. Water and dirt began to pile up on top of the dead plant remains.</span>