Azaleas’ are also known as the ‘Royalty of the Garden’, and are shrubs that bloom in from autumn to spring, depending on the variety.
Azaleas are either deciduous or evergreen, depending on the species, and generally like to grow under the shade of trees.
Azaleas are from the family ‘Ericaceae’, which is the family of heaths or heathers, and belong to the genus ‘Rhododendron’, which are a group of woody plants.
Azaleas grow up to 2.5 meters (8.2 feet) tall, although some only grow to half that height.
Azalea nectar and leaves are highly poisonous, and in the past, have been seen as a death threat if the flowers have been given in a black vase.
Places in Japan, Korea and the United States have festivals to celebrate azaleas.
Azaleas are mostly native to North America, and eastern parts of Asia, and the American species are generally deciduous, while the Asian species are generally evergreen.
Azalea flowers come in white, pink, mauve, purple, red, orange and yellow in colour, and the single varieties generally have 5 petals, but doubles can have up to 30.
Azaleas are popular garden plants, although many people do not know how to grow them properly, as they require specific growing conditions, which include the need for acidic soil.
Over 10,000 different cultivars of azaleas have been recorded and the plant and flowers are very similar to rhododendrons in appearance, so it is often difficult to tell them apart.
Sí, el método de cristalización se utiliza para separar la sal del agua y obtener los componentes de la sal y del agua por separado. La cristalización es un método o técnica que se utiliza para purificar compuestos sólidos. Este proceso funciona mejor debido a las diferentes solubilidades del compuesto deseado y las impurezas que están presentes en un solvente dado. El proceso de cristalización implica enfriar agua salada para formar cristales de hielo puro. Luego, los cristales de hielo se separan de la salmuera no congelada, se lavan para eliminar la sal residual y luego se derrite la solución para producir agua dulce.
The mole fraction is calculated using the formula:
mole fraction of component A = # of moles of component A / # of total moles of the solution.
A) number of moles of ethanol
To calculate the number of moles of ethanol, you need its density, which will permit you to determine the mass of the 10.00 ml, and then convert into moles using the molar mass of ethanol.
The normal density of ethanol is 0.789 g/ml
density = mass / volume => mass = density * volume = 0.789 g/ml * 10.00 ml = 7.890 g
Molar mass of ethanol = 46.07 g/mol
number of moles = mass / molar mass = 7.890g / 46.07 g/mol = 0.1713 mol
B) number of moles of water
density of water = 1.00 g/mol
mass of water = density * volume = 1.00 g/mol * 2.00 ml = 2.00 g
number of moles of water = mass / molar mass = 2.00 g / 18.0 g/mol = 0.111 mol
C) mole fraction
mole fraction of ethanol = number of moles of ethanol / number of moles of solution
number of moles of ethanol = 0.1713 / (0.1713 + 0.111) = 0.1713 / 0.2824 = 0.607
Answer: 0.607
The volume of the final solution may be calculated by adding the volume of the two components. This is 10.00 ml of ethanol + 2.00 ml of water makes 12.00 ml of solution.
It is not clear what the second question is meant for. Some context is missing. If you know density and you know maqss (or can calculate the mass from other data) you do not need to measure the volume.
