Study Set Content:
may be described as single phase systems composed of two or more chemical substances representing homogeneous molecular dispersion.
SOLUTIONS
a homogeneous mixture on the basis of the variability of composition.
SOLUTIONS
Qualitative Expressions of Concentration
a. Dilute, Concentrated
Semi-Quantitative Expressions of Concentration
Saturated , Unsaturated
Quantitative Expressions of Concentration
% Composition, Molarity, Molality, Normality, Mole Fraction, PPM
ρ, of an object is defined as the ratio of its mass to its volume.
DENSITY
g/ml or g/cm3 (which are equivalent because 1ml ≡ 1cm3)
DENSITY
(which are equivalent because 1ml ≡ 1cm3)
g/ml or g/cm3
the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.
SPECIFIC GRAVITY
water at its densest (blank) for liquids;
4°C
for gases it is air at room temperature
21°C
Pressure is nearly always 1 atm
101.325 kPa
A mixture of two or more components that melt uniformly and isothermally at a lowest temperature.
EUTECTIC MIXTURE
The concept of eutectic mixture formation is usually,
directed by following factors:
The components must be (blank) in liquid state and mostly(blank) in solid state
miscible, immiscible
Intimate contact between eutectic forming materials is necessary for contact induced
melting point depression
The components should have (blank) that can interact to form physical bonds such has intermolecular hydrogen bonding etc.,
chemical groups
The molecules which are in accordance to modified (blank) can form eutectic mixture
Vant Hoff’s equation
CAMPHOR
Melting Point: 174-179 ̊C
MENTHOL
Melting Point: 39 ̊C
THYMOL
Melting Point: 51.5 °C
