Chemical Science,, Chemical Engineering

Q1
What is wrong with each of the following attempts to write an electron
configuration? Justify your answer with suitable explanation.
(a) 1s22s3
(b) 1s22s22p23s2
(c) 1s22s23s2
(d) 1s22s22p63s23d10
[5]
Q2 Given the following percent compositions, determine the empirical
formula.
(a) 47.26% Cu, 52.74% Cl
(b) 40.27% K, 26.78% Cr and 32.96% O
[5]
Q3 Discuss the classification of elements in the periodic table.
[5]
Q4 Explain different types of chemical bonds. [5]
Q5 Explain with the mechanism how the following buffer solutions maintain
fairly constant pH, even when a small amount of acid or alkali is added
to it.
(a) Acidic buffer (CH3COOH + CH3COONa) and
(b) Basic buffer (NH4OH + NH4Cl)
Posted Date: 11/26/2012 8:12:45 AM | Location : Oman







Related Discussions:- Chemical Science,, Assignment Help, Ask Question on Chemical Science,, Get Answer, Expert's Help, Chemical Science, Discussions

Write discussion on Chemical Science,
Your posts are moderated
Related Questions
a wet gas is produced through a two -stage seperator system. the 555 psia -89degree fahrenheit separator produces 170,516 scf/stb, and the 70 degree farenheith stock tank produces

a) The vacuum in the headspace of a can of food is normally formed by "hot fill" exhausting - that is, the cans are closed when the can is filled with product at a temperature of 8

Applications: Piezoelectric materials serve as a source of ultrasonic waves. At sea, they might be used to calculate depth, distance of shore, position of icebergs, submarines. Th

Introduction : You will recall previous study of this course about the various duties and activities of a lab staff that facilitate management of the laboratory in an efficient ma

What are its applications? (i)   Direct extrusion: The billet is placed in a container and forced by the die through a piston.  (ii)    Indirect extrusion: The extruded part

Applications of permanent magnets  a - Applications based on attraction or repulsion forces  b - Applications based on Faraday's induction law c- Application based on Lor

Im currently undergoing design project for my degree I would like to ask regarding the Formox process. What types of fluid package should i use for HYSIS?

describe layout of wet process for portland cement industries ?

the frame in figure consisted of members AB and BCD connected by pin at B, and member AB is a quarter circle of radius 75mm. the whole frame is supported by pins at A and C. for th

Routine monitoring at a chemical process facility has detected fugitive emissions (leaks) of volatile organic compounds around several equipment valves, pump and compressor seals.