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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)

Chem 101:Chemistry Question Paper

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