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applications and classifications
Q. Ca +2 = 20 ppm, Mg +2 = 25 ppm, CO 2 = 30 ppm, HCO - 3 = 150, K + = 10 ppm. Calculate the lime (87% pure) and soda (91% pure) required softening 1 million litt
the density of a gas ''A'' is twice that of gas ''B'' at same temperature.The molecular mass of ''B'' is thrice that of ''A'' .the ratio of the pressures acting on A andB
what is an acid
#questionwhat type of ore find in universe. Give all ores and minirals of Al,Fe,Si,Cu,Mn,Zn,Ca,Ag&Au
(a) Write the structural formula of 3-phenylprop-2-enal. (b) Write one chemical equation each to illustrate the following reactions: (i) Aldol condensation (ii) Cannizzaro
What volume of oxygen would be required to burn completely 200 ml of acetylene and what would be the volume of carbon dioxide formed?
In the following which substance will have highest boiling point: (1) He (2) CsF (3) NH 3 (4) CHCl 3 Ans: CsF
A cricket ball of 0.5 kg is moving with a velocity of 100 m/ sec . The wavelength associated with its motion is: (1) 1/ 100cm (2) 6.6 x10 -34 m
calculate the volume occupied by 10000000000000000000000 molecules of a gas at 300 K & 760 mm pressure
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