Show calculation for the density of unknow liquid trail 1

measure the volume of water poured into a graduated cylinder ,then place the object in the water and remeasure the volume.The difference between the two volume measurements is the volume of the objects .Now simply divide the mass by the volume

to calculate the density of the object.

Or The mass and size of molecules in a liquid and how closely they are packed together determine the density of the liquid. Just like a solid,the density of a liquid equals the mass of the liquid divided by its volume; D =m/v.The density of the water is one gram per cubic centimeter.

Explanation: hope this helps

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.

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