Purpose: The objective of this experiment is to use a technique called freezing point depression, which aid to figure out the molar mass of an uncertain compound.
Introduction:
Many scientists who do researches and experiments often use chemical solutions. Moreover, the solutions can be either homogeneous or heterogeneous mixtures. The word homo means evenness as a result the solution has an identical form as well in composition. A mixtures are combination between more than two substances (Burdge, 2013) . In this lab, students will be working with chemical solutions. Furthermore, the substance which has the smallest amount, or disperses is called the solute (Ophardt, 2003). On the other hand, the matter in the large quantity in the …show more content…
As temperature increases molarity decreases and vice versa. Oppositely, molality doesn’t deal with volume only the amount of solute which is in moles divided by the mass of the solvent in kilograms (Graves, 2013). As student, have learned throughout the years there are two physical properties intensive and extensive, but there is another one and is called colligative properties (Bodner Group, n.d.) Colligative properties can be applied specifically to solutions since the colligative properties is influence by the amount of particles of the solvent and solute that is in the solution (Bodner Group, n.d.). Colligative properties help scientist understand one important concept which is freezing point depression (Graves, 2013). The freezing point is the change that takes place when the temperature at which a solid liquefies or freezing when a solute is dissolved in it. For example, antifreeze used in cars is a solution that can lower the freezing point of H2O which is the solvent and as a result it prevents H2O from freezing (Francis, 2006).In addition, Student can as well know the how much the freezing point of the solvent was decreased by using a formula which is "∆" Tf = (m)( Kf) (Graves, 2013) . By using this formula it gives an insight of how the freezing point is affected and by how much. New advances in technology and formulas helps not only scientist but as well student that are learning about freezing point
Introduction:
Many scientists who do researches and experiments often use chemical solutions. Moreover, the solutions can be either homogeneous or heterogeneous mixtures. The word homo means evenness as a result the solution has an identical form as well in composition. A mixtures are combination between more than two substances (Burdge, 2013) . In this lab, students will be working with chemical solutions. Furthermore, the substance which has the smallest amount, or disperses is called the solute (Ophardt, 2003). On the other hand, the matter in the large quantity in the …show more content…
As temperature increases molarity decreases and vice versa. Oppositely, molality doesn’t deal with volume only the amount of solute which is in moles divided by the mass of the solvent in kilograms (Graves, 2013). As student, have learned throughout the years there are two physical properties intensive and extensive, but there is another one and is called colligative properties (Bodner Group, n.d.) Colligative properties can be applied specifically to solutions since the colligative properties is influence by the amount of particles of the solvent and solute that is in the solution (Bodner Group, n.d.). Colligative properties help scientist understand one important concept which is freezing point depression (Graves, 2013). The freezing point is the change that takes place when the temperature at which a solid liquefies or freezing when a solute is dissolved in it. For example, antifreeze used in cars is a solution that can lower the freezing point of H2O which is the solvent and as a result it prevents H2O from freezing (Francis, 2006).In addition, Student can as well know the how much the freezing point of the solvent was decreased by using a formula which is "∆" Tf = (m)( Kf) (Graves, 2013) . By using this formula it gives an insight of how the freezing point is affected and by how much. New advances in technology and formulas helps not only scientist but as well student that are learning about freezing point