Measuring the Density of Solid Compounds
"Learn how to measure the density of solid compounds with regular and irregular shapes using mathematical equations and volume displacement methods. Follow a step-by-step procedure to calculate density accurately in a laboratory setting."
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Presentation Transcript
Measuring the Density of Solid Compounds 1
Density: Is a physical property of any substance, can be expressed as mass per unit volume d = mass (weight) / volume g/ml or g/cm3 Kg/L or Kg/m3 2
Solid compounds can be classified to two main categories: Regular shape & Irregular shape 3
For measuring of density of the regular shape solid compounds, any shape has a special mathematical equation to find its volume (v) and then measuring its mass by weighing on the balance (m) and calculating the density by: d = m / v 4
But about measuring the density of irregular shape solid compounds, its weight can be measured by weighing on a balance (m), and its volume can be measured by recording the change in the volume (v) after putting the wanted solid compounds in a graduated cylinder contains a liquid (generally water), then applying the equation ofd = m / v 5
The liquid in the cylinder must be not react and dissolve the solid compound. 6
PROCEDURE Measure the weight of the solid sample compound on a balance. (m) Put 30 mL of water in a dry and clean graduated cylinder (v1), then place the solid sample compound into the cylinder and record the increased volume of the water inside the graduated cylinder (v2) Find the volume (v) of the solid sample compounds by v2 v1. 7
Calculate the density by applying. . d = m/v. 8
How can you write a report? 11
Name: Stage & Group: Name of experiment: Date of experiment: 12
Theory: must be include definition, basic principle theory of the experiment, some information about the experiment (must be from a references). Glassware & Equipment: include these glassware and equipment which used in the experiment. (for some weeks) 13
Procedure: Calculations: Discussions: References: 14
