Density

• Density describes how closely packed the particles are in a solid, liquid or gas.
• $ρ=$$m/v$(equation for density)
• the particle model can explain the different states of matter and differences in density.
• density increases as you go from gas to liquid to solid
• To find the density of a regular object, first measure the length, height and width of the object, recording values to the nearest mm.
• To calculate the density of a regular object, secondly calculate the volume by multiplying the length, width and height, giving the value in cm^3.
• To calculate the density of a regular object, thirdly measure the mass using the mass balance. Remember to reset the balance with nothing on the scales to ensure zero errors.
• To calculate the density of a regular object, lastly, use the equation $ρ=$$m/v$
• First, To calculate an irregular object's density, fill the displacement can with room temperature water and align a measuring beaker with the spout. Ensure the water lies below the level of the spout, but there isn't too much of a gap between the two levels.
• Secondly, to calculate an irregular object's density, place the irregular shaped object slowly into the displacement can, ensuring to not drop it or to cause any splashing as this could interfere with results.
• Thirdly, To calculate an irregular object's density, collect the displaced water and measure the volume of water displaced. The volume of water displaced will equal the volume of the object that caused the displacement.
• Fourthly, To calculate an irregular object's density, measure the mass of the object using the mass balance.
• Lastly, To calculate an irregular object's density use the equation $ρ=$$m/v$
• Firstly, to calculate the density of a liquid, measure the mass of an empty measuring beaker using the mass balance.
• Secondly, to calculate the density of a liquid, pour 100 cm^3 of the liquid into the beaker.
• Thirdly, to calculate the density of a liquid, measure the combined mass of the beaker and the liquid.
• Fourthly, to calculate the density of a liquid, subtract the mass of the beaker from the mass of the combined beaker and liquid in order to calculate the mass of the liquid.
• Lastly, to calculate the density of a liquid use the equation $ρ=$$m/v$
• Safety precautions for finding the density of an object are to take care of handling glassware and cleaning any spillages of water.