IB Chemistry SL 1.1 Particulate Nature of Matter Question Bank

Practise IB Chemistry SL 1.1 with evidence-led questions on particles, elements, compounds, mixtures and kinetic molecular theory.

Exam points

SL syllabus objectives and definitions
SL quantitative relationships and units

Covered syllabus points

1.1.1—Elements, compounds, and mixtures 1.1.2—Kinetic molecular theory 1.1.3—Temperature and kinetic energy

[Maximum number: 2]

Iron(II) sulfide can be produced by heating powdered iron and sulfur together.

Describe the difference between an element and a compound.

[Maximum number: 2]

Alkanes are commonly occurring organic compounds.

The first four straight chain alkanes are gases at room temperature.

Boiling points of straight chain alkanes

Explain why the volume occupied by a sample of propane increases sharply when the sample is heated up from 200 to 250 K at constant pressure.

[Maximum number: 1]

Nitrogen dioxide, $\mathrm{NO}_{2}$ , is a brown, toxic and corrosive gas. It can be made in a school laboratory by heating a group II metal nitrate or by the reaction of copper, Cu , with concentrated nitric acid, $\mathrm{HNO}_{3}$ .

The initial amount of $\mathrm{NO}_{2}$ was determined by titration. The oxide was first dissolved in water according to the following equation:

2 \mathrm{NO}_{2}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \rightarrow \mathrm{HNO}_{3}(\mathrm{aq})+\mathrm{HNO}_{2}(\mathrm{aq})

The solution was made up to $250.0 \mathrm{~cm}^{3}$ and $25.0 \mathrm{~cm}^{3}$ portions of this solution were then titrated against a $0.0500 \mathrm{~mol} \mathrm{dm}^{-3}$ standard solution of sodium hydroxide, NaOH .

Calculate the values for temperature, T , in degrees kelvin, K , and complete the table.

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Covered syllabus points

1.1 Introduction to the particulate nature of matter question 1

1.1 Introduction to the particulate nature of matter question 2

1.1 Introduction to the particulate nature of matter question 3