Chem 101:Chemistry Question Paper
Chem 101:Chemistry
Course:Applied Sciences
Institution: Kenya Methodist University question papers
Exam Year:2013
CHEMISTRY B(CHEM 101) 3RD TRIMESTER 2013
KENYA METHODIST UNIVERSITY
END OF 3RD TRIMESTER 2013 (DAY) EXAMINATION
FACULTY : SCIENCE & TECHNOLOGY
DEPARTMENT : PURE AND APPLIED
UNIT CODE : CHEM 101
UNIT TITLE : CHEMISTRY
TIME : 2 HOUR
INSTRUCTIONS
Answer question one and any other two questions
Question One
State the following
Pauli exclusive principal
(2 marks)
Bohrs postulates
(5 Marks)
Hund’s rule
(2 marks)
Aufbau principal
(2 Marks)
Charles law
(2 Marks)
Sketch a periodic table and name the blocks
(8 Marks)
With reasons insert the following elements into the periodic table drawn in (b) above
13Al, 3Li, 25Mn 32Ge (9 marks)
Question Two
Describe the terms stated below
Ionic radius
(4 marks)
Electronegativity
(4 marks)
Ionization energy
(4 Marks)
Electron affinity
(4 Marks)
Briefly state the trend of the terms described in (a) above from left to right and from top to bottom in a periodic table
(4 Marks)
Question Three
Discuss the mode of ionic formation in the potassium element and that of oxygen element
(6 marks)
If the two elements were to react name the bonds that will be formed
(2 marks)
Draw awater structure
(4 marks)
Name using IUPAC system the compound written below
(8 marks)
Mg(NO3)2
KI
BeCO3
KOH
Question Four
Explain the meaning of the following terms
Titration
(1 mark)
End point
(1 Mark)
Write the application of the following compounds in life
BaSO4
CaAl(NO3)2
C4H10
NaCl
PH3
(10 Marks)
Calculate the mass of the following compounds (K=39, P=31, N=14, S=32, Pb=207, C=12, H=1, 0=16, Na=23)
Na2CO3.10H20
KH2PO4.3NaNO3
CaSO4.H2O.CaHCO3.PbNO3
(6 Marks)
Calculate the percentage of oxygen in each case
(2 marks)
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