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Uses of pyrogallol
(a) As a developer in photography.
(b) As a hair dye.
(c) In medicine of skin diseases like eczema.
(d) For absorbing none reacted oxygen in gas analysis.
For a general reaction such as: The equilibrium constant is where the terms [A], [B],...strictly represent activities but are frequently approximated as co
#ques(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical po
How many grams of water can be produced when 11.7 moles of ethane (C2H6) react with excess oxygen gas? Unbalanced equation: C2H6 + O2 ? CO2 + H2O Show, or explain, all of your w
Liebermann's nitroso reaction While phenol is reacted with NaNO 2 and concentrated H 2 SO 4 , it provides a deep green or blue colour which changes to red on dilution with wa
advantages and disadvantages of coulometer
2NO(g)+2H2O yeilds N2+2H2O Write the rate law for the pervious reaction if doubling the concentration of H2 doubles the reaction rate, and if doubling the concentration of NO incre
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Ans) There is a formula for this i.e [ (n 2- n 1 +1)
how is ores extracted and the down stream process and its principles?
Polymerization The tendency of many molecules to aggregate and form dimmers (e.g. Al2Cl6 2), extended polymeric, or larger oligomers structures can be regarded as a donor-accep
The density of pure silver is 10.5 g/cm^3 at 20C. If 5.25g of pure silver pellets is added to a graduated cylinder containing 11.2 mL of water, to what volume level will the water
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