Chemistry (CH 110) Tutorial Sheet 1 2025 PDF
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Uploaded by FerventConnemara7971
The Copperbelt University
2025
The Copperbelt University
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Summary
This is a chemistry tutorial sheet from The Copperbelt University, School of Mathematics and Natural Sciences, Department of Chemistry for the year 2025. The sheet covers various topics in chemistry, including scientific method, physical properties of matter, and conversions. It contains a list of questions related to chemistry calculations and theory.
Full Transcript
# THE COPPERBELT UNIVERSITY ## SCHOOL OF MATHEMATICS AND NATURAL SCIENCES ### DEPARTMENT OF CHEMISTRY ## CHEMISTRY (CH 110) TUTORIAL SHEET 1 TERM ONE YEAR 2025 1. What is scientific method? 2. Outline the five steps involved in scientific method. 3. Differentiate between Theory and Law. 4. State a...
# THE COPPERBELT UNIVERSITY ## SCHOOL OF MATHEMATICS AND NATURAL SCIENCES ### DEPARTMENT OF CHEMISTRY ## CHEMISTRY (CH 110) TUTORIAL SHEET 1 TERM ONE YEAR 2025 1. What is scientific method? 2. Outline the five steps involved in scientific method. 3. Differentiate between Theory and Law. 4. State and explain two kinds of mixtures. 5. Give three common examples of physical properties of matter. 6. Name two categories of properties of matter and give three examples of each. 7. List down four laboratory pieces of instrument that are used to measure volume. 8. Convert each of the following: (a) 6 cm³ to m³ (b) 4 dm³ to m³ (c) 4 m to Å (d) 4 g/cm³ to kg/m³ 9. A brick has a density of 500 kg/m³ and a mass of 10.5 kilograms. Work out the volume of the brick, in m³. 10. Helium has the lowest boiling point of all the elements at -449.5°F. Convert this temperature to degrees Kelvin. 11. Bromine liquid boils at 359 K. Convert this boiling point to Fahrenheit. 12. Calculate the correct number of significant figures for the final solution: (i) 76.4 × 180.4 (ii) 934.9 ÷ 0.00455 13. Calculate and give the answer using the correct number of significant figures: 1.02 + 8.2 + 3.33 + 9.781 14. Explain the two types of measurement errors and relate them to precision and accuracy. 15. State four postulates of John Dalton's atomic theory. 16. Discuss three laws deducted from Dalton's Atomic Theory. 17. What is the composition of a nuclide? 18. Argon-36, Argon-38 and Argon-38 are isotopes (i) State what is meant by the term isotope (ii) Write the nuclide notation for each of these isotopes 19. How does the electronic configuration of an element relate to its position in the modern periodic Table? Explain with one example. 20. What is the difference between a molecular formula and a structural formula? 21. How is anion different cation? 22. For each of the following compounds, state whether it is ionic or covalent. If it is ionic, write the Symbols for the ions involved: (a) NF<sub>3</sub> (b) BaO (c) (NH<sub>4</sub>)<sub>2</sub>CO<sub>3</sub> (d) Sr (H<sub>2</sub>PO<sub>4</sub>)<sub>2</sub> (e) IBr (f) Na<sub>2</sub>O 23. Name the following compounds: (a) NiCO<sub>3</sub> (b) MoO<sub>3</sub> (c) Co (NO<sub>3</sub>)<sub>2</sub> (d) MnO<sub>2</sub> (e) Fe<sub>2</sub>O<sub>3</sub> 24. Write the formulas for each compound below (a) Potassium phosphate (b) Copper (II) sulfate (c) Titanium dioxide (d) Ammonium nitrate (e) Sodium bisulfate (f) Phosphorus pentachloride (g) Carbon tetrachloride (H) Antimony (III) sulfide 25. When do you use Roman numerals or prefixes when naming compounds? **GOOD LUCK**
