Science
chch - FUNDAMENTALS OF CHEMISTRY (ENGG.) - V4

Chemistry 2

mcbs

Question Description

chch - FUNDAMENTALS OF CHEMISTRY (ENGG.) - V4


no similarities please


.........................

Unformatted Attachment Preview

HIGHER COLLEGE OF TECHNOLOGY DEPARTMENT: APPLIED SCIENCE Section: Applied Chemistry. Final Assessment (Assignment) V4 Semester: II Date: A. Y.:2019 / 2020 01.05.2020 from: 10am To: 03.05.2020 10am Student Name ID Number Specialization Level DIPLOMA YR I Course Name FUNDAMENTALS OF CHEMISTRY (ENGG.) Course Code CHEM1100 4 Section SECTION A Question No. Max. Marks 1 SECTION B Question No. Max. Marks 5 7 10 2 5 8 10 3 5 4 5 5 5 6 5 Sub Total 30 Sub Total 20 Grand Total Marks Obtained Marks / 50 First Marker : Second Marker: Signature: Signature : Date : Date : 1 Obtained Marks INSTRUCTIONS TO STUDENTS 1. Type / write your full name and student number (ID Number) on the top of each page of your Final Assessment (assignment)answer script (You can put them as “header” of each page). 2. The Final Assessment (Assignment) will be posted in the e-learning portal as per schedule. You are given 2 days (48 hours) to answer the Final Assessment (Assignment). You must submit your answer script through e-learning portal on or before the time and day as per schedule. However, students may submit their Final Assessment (assignment) answer script through HCT e-mail in exceptional cases as stipulated in the General Guidelines for students (Guideline No. 3). Multiple submissions are not allowed. 3. All answers should be computerized in MS Word. However for some courses, answers can be handwritten on white paper using blue or black ink, scanned and must be submitted. Answers can also be a combination of computerized and handwritten, as the case maybe, most especially for courses that require formula or computation/calculations in their answers 4. This Final Assessment (assignment) is an open assessment, which means you may use course handout, PowerPoint slides, textbooks and other relevant references including e-books and internet websites (Masedar, Proquest, etc.). However, proper citation is required. 5. Marks will be deducted / cut for plagiarized work according to the plagiarism policy of the College. 6. Submission after the allotted time will NOT be accepted. However, kind consideration could be implemented as long as the processes stipulated in the General Guidelines for students (Guideline Nos. 6 and 7) are strictly followed. 7. You are required to type your full name, ID number and date below the academic integrity student declaration. This will be considered as your signature which means conformance to the student declaration. If you need more clarification, read the general guidelines for students posted in the e-learning portal or feel free to contact your lecturer. __________________________________________________________________________ Academic Integrity Student Declaration I hereby declare that all my answers in this final assessment (assignment) are my own original idea and work except for those that I have explicitly acknowledged with proper citations, the source of the information. I also understand that plagiarism is an offense that can lead to reduction of marks or disciplinary actions depending on the seriousness of the case. Student Name: _____________________ ID Number: __________________ Date: _______________________ 2 SECTION A Short answer questions 30 marks Note: Answer all the questions 1a) Express 4, 650,0000 in scientific notation, with 2 significant figure. b) 4.90 x 10-3 (1000) ----------------------------- = 11.55 c) Observe the two processes and compare their differences. (2 marks) (3 marks) 2a) An element in the periodic table which is an odorless, tasteless gas and a poor conductor of heat and electricity. The element is having four electrons in its second shell. Identify the element .Write the electronic configuration of the element? (1 mark) 3 b) Calculate the following : i) The number of atoms in 10 g of Neon. (1 mark) ii) The moles of oxygen gas in a container occupying 33.6dm3 volume at STP. (1 mark) iii) The RMM of sodium carbonate heptahydrate. (1 mark) iv) The mass of 0.0356 mol of dinitrogen pentoxide . (1 mark) 3a) What are the essentials of a chemical equation? Illustrate with a suitable example. (2 marks) b) What is the information conveyed by a chemical equation? 4 (1 mark) c) How many grams of water are formed when 0.200g of hydrogen (H2) reacts with oxygen ? (2 marks) 4a) Identify the ionic molecules among the following given examples and write their correct formulae. (3 marks) i. Potassium Iodide. ii. Silicon carbide. iii. Rubedium sulfide. iv. Nitrogen pentoxide. v. Cadmium (II) phosphide. b) Mention the correct formula / type of the compound in the given space in below table. (2 marks) S. No. Name of compound Formula of the compound 1 Strontium Nitride 2 Cadmium(II) Sulfide 3 Beryllium hypochlorite 4 Phosphoric Acid Type of Compound Sr3N2 Binary ionic type II Be(ClO)2 Acid 5 5) Calculate the mass % of each constituent present in Ferrous sulfate which is a crystalline compound used in is a medicine to treat and prevent iron deficiency anaemia. (5 marks) 6) Calculate the molality of a solution of ethanoic acid in water in which the mole fraction of ethanoic acid is 0.084. (5 marks) SECTION B Long answer questions 20 marks 7a) An alkane has molecular mass 114.What is the molecular formula of the alkane? Write down any three isomers with structures for this molecular formula? (6 marks) 6 b) Give any three differences between ethane and ethane. S. No Ethane (3 marks) Ethene 1 2 3 c) Give the structure of an eight carbon alkane with an amino group in position 3 and nitro group in position 4. (1 mark) 8a) A chemistry professor asked his students to make standard solutions separately. The first batch of students were asked to prepare 2 Molar solution whereas the second batch 2 molal solution. Which method is more precise or accurate and mention the reason. (1mark) b) List any two points of differences between the above two solutions. S. No 2 molar solution (2 marks) 2 molal solution 1 2 c) An hydrated compound with molecular mass 161, on analysis was found to contain 14.31% sodium , 9.97% sulphur, 6.22% hydrogen and the rest oxygen. Calculate the empirical and molecular formula of the compound. (7 marks) END OF PAPER 7 8 ...
Purchase answer to see full attachment

Final Answer

Attached.

HIGHER COLLEGE OF TECHNOLOGY
DEPARTMENT: APPLIED SCIENCE
Section: Applied Chemistry.

Final Assessment (Assignment) V4
Semester: II
Date:

A. Y.:2019 / 2020

01.05.2020 from: 10am

To: 03.05.2020 10am

Student Name
ID Number
Specialization
Level

DIPLOMA YR I

Course Name

FUNDAMENTALS OF CHEMISTRY (ENGG.)

Course Code

CHEM1100
4

Section
SECTION A
Question No.

Max.
Marks

1

SECTION B
Question No.

Max. Marks

5

7

10

2

5

8

10

3

5

4

5

5

5

6

5

Sub Total

30

Sub Total

20

Grand Total
Marks

Obtained Marks

/ 50

First Marker :

Second Marker:

Signature:

Signature :

Date :

Date :

1

Obtained Marks

INSTRUCTIONS TO STUDENTS
1. Type / write your full name and student number (ID Number) on the top of each page of
your Final Assessment (assignment)answer script (You can put them as “header” of each page).
2. The Final Assessment (Assignment) will be posted in the e-learning portal as per schedule. You
are given 2 days (48 hours) to answer the Final Assessment (Assignment). You must submit your
answer script through e-learning portal on or before the time and day as per schedule. However,
students may submit their Final Assessment (assignment) answer script through HCT e-mail in
exceptional cases as stipulated in the General Guidelines for students (Guideline No. 3). Multiple
submissions are not allowed.
3. All answers should be computerized in MS Word. However for some courses, answers can be
handwritten on white paper using blue or black ink, scanned and must be submitted. Answers
can also be a combination of computerized and handwritten, as the case maybe, most especially
for courses that require formula or computation/calculations in their answers
4. This Final Assessment (assignment) is an open assessment, which means you may use course
handout, PowerPoint slides, textbooks and other relevant references including e-books and
internet websites (Masedar, Proqu...

madushan (3478)
UIUC

Anonymous
Solid work, thanks.

Anonymous
The tutor was great. I’m satisfied with the service.

Anonymous
Goes above and beyond expectations !

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors