What is the difference between quantitative and qualitative properties?
Give an example of each. Quantitative properties (think quantity) use numbers and are measured, qualitative properties (quality) are not measured and don’t use numbers. Qualitative – colour, state, texture, lustre Quantitative – density, melting point, boiling point 13. If a substance boils at 45C and freezes at -19C, what state will it be in at room temperature (25C)? If a substance boils at 45C and freezes at -19C, it will be a liquid at room temperature. 14. Draw a graph of the following data. What is the melting point of the substance? What is the boiling point of the substance? What is the substance? Time(min) Temperature(C) Time (min) Temperature ( C) 0 70 10 151 1 75 11 167 2 80 12 181 3 80.2 13 195 4 80.2 14 210 5 80.2 15 218 6 95 16 218 7 105 17 218 8 120 18 218 9 134 19 221 20 225 Please see Ms. Trott or Mr. Blatherwick if you need help with the graph. The melting point of the substance is 80.2C and the boiling point is 218C. The substance is naphthalene. 15. What are 5 signs
