Answer:
22 percent of Calories in a serving comes from added sugars
Explanation:
Sugars mentioned in the food products are usually processed sugars, chemically called fructose (which is a combination of glucose and sucrose). Sugars gives four Calories of energy per gram. So, 13 grams of sugar will give thirteen times of four, which is 52 Calories.
The percentage can be calculated from the following formula:
hydrogen bonding and ion-dipole
Explanation:
The intermolecular forces the particles of fluoride experiences is an ion-dipole bond, between the water molecules, there are hydrogen bonds.
- An ion-dipole bond is an attractive force between an ion and a polar molecule.
- The fluoride is the anion that is attracted by the positive end of water molecules.
- Water is a polar compound.
- Between the water molecule, there is presence of hydrogen bonds.
- Hydrogen bonds are special dipole - dipole attraction between polar molecules joined to a highly electronegative atom.
- The electrostatic attraction between the hydrogen atom of one molecule and the electronegative atom of a neighboring molecule forms the hydrogen bond.
learn more:
Hydrogen bond brainly.com/question/10602513
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The answer is 2.135 mol/Kg
Given that molarity is 2M, that is, 2 moles in 1 liter of solution.
Density of solution is 1.127 g/ml
Volume of solution is 1L or 1000 ml
mass of solution (m) = density × volume
m₁ = density × volume = 1.127 × 1000 = 1127 g
mass of solute, m₂ = number of moles × molar mass
m₂ = 2 × 95.211
m₂ = 190.422 g
mass of solvent = m₁ - m₂
= 1127 - 190.422
= 936.578 g
= 0.9366 Kg
molality = number of moles of solute / mass of solvent (in kg)
= 2 / 0.9366
= 2.135 mol/Kg
