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Inorganic Chemistry
when a gas filled in a closed container is heated through 1degree C its pressure is increased by
0.4% then initial temp of the gas was
0.4% then initial temp of the gas was
Inorganic Chemistry
How do I calculate Equ wt of O2?
We needed to calculate the conc.of O2 present in water sample by Winkler's method.We had to use this formula: c(O2) (mg/L)=(V1×N×E×1000)/V4
where
V1= Vol of titrant Na2S2O3
V4=Vol of analyte
E=Equ wgt of O2
N=Normality of Na2S2O3 sol
The process and reactn involved are here:http://chemistry.stackexchange.com/questions/63494/deriving-the-equation-for-oxygen-estimation-by-winkler-s-method
P.S. I'm not concerned with the equation in the link but the one provided in this post.
We needed to calculate the conc.of O2 present in water sample by Winkler's method.We had to use this formula: c(O2) (mg/L)=(V1×N×E×1000)/V4
where
V1= Vol of titrant Na2S2O3
V4=Vol of analyte
E=Equ wgt of O2
N=Normality of Na2S2O3 sol
The process and reactn involved are here:http://chemistry.stackexchange.com/questions/63494/deriving-the-equation-for-oxygen-estimation-by-winkler-s-method
P.S. I'm not concerned with the equation in the link but the one provided in this post.
Inorganic Chemistry
What has the lowest boiling point (H2O, Br2, HBr)?
Inorganic Chemistry
calculate the concentration in mol/L, of a 20% (m/m) solution of sodium hydroxide that has a density of 1.43 g/ml
Inorganic Chemistry
I was studying about boron family and I found that in this group only Al react water to form hydroide but not B, Ga or In.
Can anyone tell me why it is the case?
Can anyone tell me why it is the case?
Inorganic Chemistry
Of the species listed below, select those less basic than acetylide (only one option permitted).
a. BuLi
b. NaNH2
c. NaOCH3
d. both BuLi and NaOCH3
e. both NaNH2 and NaOCH3
Give a explanation please
a. BuLi
b. NaNH2
c. NaOCH3
d. both BuLi and NaOCH3
e. both NaNH2 and NaOCH3
Give a explanation please
Inorganic Chemistry
Use the Acid-Base Table to determine the pKa of the weak acid H2O. Express your answer to two decimal places.
pKa = _________
pKa = _________
Inorganic Chemistry
In Winkler's method why is some amount of Na2S2O3 added before addition of starch solution turning the deep straw coloured solution pale straw?
Is it to generate I− ions needed for formation of I3− in the I2 containing solution? This I3− inturn reacts with the starch to form blue-black complex.
However once we didn't add Na2S2O3 and the addition of starch solution did turn the solution it blue-black.
Is it to generate I− ions needed for formation of I3− in the I2 containing solution? This I3− inturn reacts with the starch to form blue-black complex.
However once we didn't add Na2S2O3 and the addition of starch solution did turn the solution it blue-black.
Inorganic Chemistry
How can we draw energy level diagrams in Molecular Orbital Theory
Inorganic Chemistry
How do you make a liquid 8% solution by volume of NaHCO3 from dry NaHCO3 that is 45% by weight?
Thank you in advance.
Thank you in advance.
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#331389 on Nov 2022
#331389 on Nov 2022