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2. A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass of Ca3(PO4)2 will be formed? (b) What will be the concentrations of eac
what can be understood from the law of multiple proportions?
The maximum number of electrons which each sub-shell can occupy is: (1) 2n 2 (2) 2n (3) 2 (2l+1) (4) (2l+1) Ans: 2
A reaction is of first order in reactant A and of second order in reactant B. How is the rate of this reaction affected when (i) the concentration of B alone is increased t
Atomic spectroscopy: Atomic spectroscopy is the oldest instrumental method of elemental analysis. The origin of these methods dates back to the times of Bunsen and Kirchhoff i
ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES
Q. Explain: Vulcanization of rubber is necessary. Ans. Importance of vulcanization of rubber: 1. Vulcanization makes cross-links between the long unsaturat
Globular proteins These proteins comprise more or less spherical shape (compact structure). α-helics are firmly held up by weak attractive forces of numerous types that are Hyd
The spectrum of He is expected to be similar to: (1) H (2) Li + (3) Na (4) He + Ans: Li +
(a) Given the values below, Determine the concentration of benzoyl peroxide needed to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical polymeris
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