Answer:
Hydrogen Bonding
Explanation:
Hydrogen bonding occurs between the positive dipole of one water molecule with the negative dipole of another. It is an intermolecular force that gives water its unique properties such as: high boiling point, high specific heat, cohesion, adhesion, and density.
Answer:39.8375
Explanation:
The mole for the equation is 1:1
Then the molar mass of KCl is 74.5g
Molar mass of k is 39
74.5g of KCl gives 39g of k
76.10g of KCl gives xg of k
X= 76.10×39/74.5
X= 2967.9/7
X= 39.8375
Answer:
10.24 ×10²³ molecules
Explanation:
Given data:
Mass of COCl₂ = 218.4 g
Number of molecules = ?
Solution:
Number of moles of COCl₂:
Number of moles = mass/molar mass
Number of moles = 218.4 g/ 129.84 g/mol
Number of moles = 1.7 mol
1 mole contain 6.022×10²³ molecules.
1.7 mol × 6.022×10²³ molecules / 1mol
10.24 ×10²³ molecules
