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1. Finding the density of a liquid:
-
To find the density of a liquid, you need to measure its
mass and volume. To do this you can:
- place an empty measuring cylinder on a digital balance and record its mass (m₁)
- pour a specific volume (V) of liquid into the measuring cylinder and read the volume at eye level from the bottom of the meniscus
- reweigh the cylinder containing the liquid to find the total mass (m₂)
- calculate the mass of the liquid: m = m₂ − m₁
- calculate density using: ρ = m ⁄ V
Finding the density of a liquid using a measuring
cylinder and a digital balance
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2.3 Electricity & Magnetism
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