200rates
sana ay makatulong hehehe <3
Mole fraction = moles of desired compound / total moles
moles = mass (g) / molar mass (g/mol)
Mass of sucrose = 20.0 g
Moles of sucrose = 20.0 g / 342.3 g/mol = 0.058 mol
Mass of water = 100.0 g
Molar mass of water = 18 g/mol
Moles of water = 100.0 g / 18 g/mol = 5.556 mol
Total moles = moles of sucrose + moles of water
= 0.058 mol + 5.556 mol
= 5.614 mol
Mole fraction of sucrose = moles of sucrose / total number of moles
= 0.058 mol / 5.614 mol
= 0.010
Space -filling models are also known as Calotte models. These are 3 dimensional models that depict the spatial relationships between atoms.
The space-filling model of water molecule shows the 3 D structure of the water molecule. This model CLEARLY REVEALS THE OXYGEN ATOM WHICH IS LOCATED CENTRALLY WITH TWO HYDROGEN ATOMS IN THE ADJACENT SIDES. THE MODEL ALSO SUGGESTS HOW THE WATER MOLECULES ATTRACT EACH OTHER.
B.) Gravitational force decreases.
You were right !!
As electronegativity difference increases, the degree of ionic character increases.
The answer is increases.