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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.C.A. DEGREE EXAMINATION - COMPUTER APP.
THIRD SEMESTER – APRIL 2011
CA 3900 - COMPUTERS IN CHEMISTRY
Date : 20-04-2011
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
PART – A
Answer ALL questions:
10 x 2 = 20
(Note: program should not be written for part – A)
1. Define keyword. Give examples.
2. What is an array?
3. State the use of BREAK and CONTINUE statement.
4. List the data types use in C language.
5. Convert into C expression
X1 – X 2 = 0.18(E1-(E2 * E3)1/2)1/2
6. Write a for loop to calculate the concentration of n different systems.
7. Write a loop statement to calculate molecular weight of a compound.
8. Write a switch case to estimate either N or O or S.
9. State the importance of computers in the field of chemistry.
10. What is PH value?
PART – B
Answer ALL questions
5 x 8 = 40
11.a. Explain switch statement with an example.
(OR)
b. Define structure. Explain with an example.
12.a. Write a c program to find the wavelength using Debroglie wavelength equation.
(OR)
b. Write a C program to calculate the heat of reactions at constant volume and
constant pressure relationship.
13.a. Write a C program to calculate the Lattice energy of crystal using Bornlande equation.
(OR)
b. Write a C program to determine the solubility of sparingly soluble salt.
14.a. Write a C program to calculate the wavelength for conjugate diene.
(OR)
b.. Write a C program to calculate the molecular weight.
15.a. Write a C program to determine protein using Biuret method.
(OR)
b. Write a C program to calculate glucose level using orthotoludine method.
PART – C
Answer any TWO Questions:
2 X 20 = 40
16. Explain the four categories of function with example for each.
17.a. Write a C program to find the density of electron.
b. Write a C program to calculate the half and average life .
18.a. Write a C program to estimate the percentage of N, S, O in organic compound.
b. Write a C program to calculate the amount of calcium in a given substance using Titrimetric
method.
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