A student finds the density of an unknown liquid.
She measures 50.0 cm3 of the liquid in a measuring cylinder. She then pours all of the liquid into a beaker.
The mass of the empty beaker is 95.0 g.
The mass of the beaker and the liquid is 141.0 g.
The Table shows the densities of four liquids.
Table
| Liquid | Density in g/cm3\text{g/cm}^3g/cm3 |
|---|---|
| ethanol | 0.79 |
| olive oil | 0.92 |
| water | 1.00 |
| glycerol | 1.26 |
Calculate the mass of the liquid.
Calculate the density of the liquid in g/cm3\text{g/cm}^3g/cm3.
Use your answer to (b) and the Table to identify the liquid.
When the student pours the liquid into the beaker, some of the liquid stays stuck to the inside of the measuring cylinder.
Explain how this affects the density she calculates.
44 exam-style questions on OCR GCSE Physics 1.1 The particle model, covering 1.1.1 Development of the atomic model, 1.1.2 Structure of the atom, 1.1.3 The size of atoms and small molecules, 1.1.4 Density, 1.1.5 Density and the states of matter, and 1.1.6 Density, mass and volume. Each one has a worked solution and a mark scheme showing where the marks go.