Means of molality
Give me answer of this question. The number of moles of solute per kg of a solvent is called its: (a) Molarity (b) Normality (c) Molar fraction (d) Molality
Unit of measurement- These are also some systems for units: (1) C.G.S.
Unit of measurement- These are also some systems for units: (1)
A 500 gm tooth paste sample has 0.2g fluoride concentration. Determine the concentration of F in terms of ppm level: (a) 250 (b) 200 (c) 400 (d) 1000Answer: (c) F-ions in ppm = (0.2/500) x 106 = 400
37% weight of HCl and density is 1.1g/ml. find molarity of HCl
define primary secondary and tertiary alkyl halides with examples
What do you mean by the term enzymes? Briefly illustrate it.
Laser action relies on a non-Boltzmann population inversion formed by the absorption of radiation and vibrational deactivation that forms a long lived excited electronic state. An excited state molecule can move to a lower energy state or return to the
Describe some of the significance of the organic chemistry in brief?
Provide solution of this question. Determination of correct molecular mass from Raoult's law is applicable to: (a) An electrolyte in solution (b) A non-electrolyte in a dilute solution (c) A non-electrolyte in a concentrated solution (d) An electrolyte in a liquid so
6. 20 gm of hydrogen is present in 5 litre vessel. The molar concentration of hydrogen is
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