Answer: Use Avogadro's number, NA = 6.02 × 1023 atoms/mol.
Explanation:
According to the formula of vapor pressure:
Pv(solu) = n P°v(water)
when we have Pv(solu) = 23.1 torr & Pv(water) = 23.8 torr so we can get the mole fraction of water (n)
∴ n = Pv(solu) / Pv(water)
= 23.1 / 23.8 = 0.97 mol
when mole fraction of water = moles of water / (moles of water + moles of glucose)
So by substitution::
0.97 = 27.78 / (27.78+ X)
∴moles of gulcose = 0.85 mol
∴ mass of glucose = no.of moles * molar mass
= 0.85 * 180 = 152 g
opposite
Explanation:
Ionic compounds connects and holds together due to the opposite ionic charges that each element in the compound forms.
Ionic bonds are formed as a result of the electrostatic attraction between oppositely charged ions.
This force is a force of attraction that pulls ions to form compounds.
- Ionic bonds are formed between two species with a large electronegativity difference.
- This is usually a metal and a non-metal in nature.
- The metal loses its electron and becomes positively charged.
- The non-metal due to its electronegativity gains the electrons and becomes negatively charged.
- Attraction between these oppositely charged specie leads to the formation of ionic bonds.
learn more:
Ionic compounds brainly.com/question/6071838
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Because contains more matter.
1L = 1000ml
1ml = 1cm^3
2.1L = 2100mL = 2100cm^3