The melting point of lauric acid is 43,8 oC.
To determine the melting point of stearic acid, heat the substance gradually in a controlled manner until it completely melts and note the temperature. To find the freezing point, allow the liquid stearic acid to cool slowly until it solidifies, recording the temperature when this occurs. Compare the two recorded temperatures to calculate the melting and freezing points of stearic acid accurately.
for example ....water:freezing point: liquid freezes to ice boiling point: liquid boils and turns into vapor melting point: ice melts to liquid
Melting point of a solid involves the temperature changing from solid to liquid. Solid and liquid exist in in-equilibrium. The liquid to solid process is known as freezing or crystallisation.The principle of observing the disappearance rather than the forming of ice is known as the melting point.Source(s):Wikipedia
To determine the pH of a substance using the pH method, you will need a pH meter or pH strips. For a pH meter, simply immerse the electrode into the substance and wait for the reading to stabilize. For pH strips, dip the strip into the substance and compare the color change to the provided chart to determine the pH value.
The saturated vapor pressure of water at 50 oC is 123,39 mm Hg.
Both indicate the temperature at which the solid and liquid states of a substance are in equilibrium.
To determine the melting point of stearic acid, heat the substance gradually in a controlled manner until it completely melts and note the temperature. To find the freezing point, allow the liquid stearic acid to cool slowly until it solidifies, recording the temperature when this occurs. Compare the two recorded temperatures to calculate the melting and freezing points of stearic acid accurately.
for example ....water:freezing point: liquid freezes to ice boiling point: liquid boils and turns into vapor melting point: ice melts to liquid
They are identical.
The freezing temperature of water is the same as its melting temperature for pure water at sea level, which is 0 degrees Celsius (32 degrees Fahrenheit). This is the temperature at which water transitions from a liquid to a solid (freezing) or from a solid to a liquid (melting).
A thermometer measures the amount of thermal energy a material has. This thermal energy is related to the vibrational and rotational energy the particles in the material have. By using the thermometer to measure the temperature of a material you are, in effect, measuring the amount of energy the particles of that material have.
Temperature is the measure of average energy of motion of particles within a substance because temperature reflects the amount of kinetic energy present in the particles. As particles move faster, they have higher kinetic energy. By measuring the average kinetic energy of particles, temperature provides a standardized way to compare the thermal energy of different substances.
By definition, they are the same!
The water temperature can be different from the air temperature.
It does not, but salt affects the freezing point. All solids are frozen. Each has a different freezing point. Ice is just the freezing point of water. But your computer keys are frozen too. Different substances freeze differently. But for your purposes, compare water to salt water. The salt in the water causes there to be more things in the water that disrupt the tight hydrogen bonds.Since freezing is tighter H-bonds, salt lowers the freezing temperature because it is harder to freeze it now since there is salt in it.
Because of atmosphere
To determine the substance given the mass, you would need to compare the mass to the known density of various substances. By dividing the mass by the volume (which can be calculated from the dimensions of the object), you can determine the density of the substance. Then, you can compare this density to known values to identify the substance.