Answer: Galaxy
Explanation: A galaxy is a large system of stars held in place by mutual gravitation.
The strongest type of intermolecular force present between NH2CH3 molecules is the Hydrogen bond
This is further explained below.
<h3>What is the strongest type of intermolecular force present between nh2ch3 molecules?</h3>
Generally, One definition of a hydrogen bond describes it as an electrostatic force of attraction between two electronegative atoms, one of which is a hydrogen atom that is covalently bound to a more electronegative "donor" atom or group and the other of which is an atom that bears a lone pair of electrons and is referred to as the hydrogen bond acceptor.
In conclusion, The hydrogen bond is the sort of intermolecular interaction that is the most powerful when it is present between NH2CH3 molecules.
Read more about Hydrogen bonds
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The mass of 0.699 mol of C₆H₁₂O₆ is 126 g.
Mass = 0.699 mol × (180.16 g/1 mol) = 126 g
Answer:
20.5 × 10²³ molecules of He
Explanation:
Given data:
Number of moles of He = 3.40 mol
Number of molecules of He = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For 3.40 moles of He:
3.40 mol × 6.022 × 10²³ molecules
20.5 × 10²³ molecules of He