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What is the bond angle between the hydrogen atoms in an ammonia NH3 molecule?
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∙ 11y ago
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Wiki User
∙ 11y ago
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What is hydrogen's bond angle?
Hydrogen the molecule doesn't have a bond angle. You have to have an atom with at least two other atoms bonded to it to have a bond angle, and hydrogen has only two atoms total.
Why is ammonia considered a polar molecule?
Ammonia is a polar molecule because the different electronegativity's of the nitrogen and the hydrogen molecules makes the hydrogen slightly positive and the nitrogen slightly negative. However there are 2 valance electons of the nitrogen atom which are not bonded to anything, which are called lone pairs. The lone pairs means that the ammonia molecule is not symmetrical therefore the electronegativity's do not cancel eachother, creating a polar molecule. ( The reason why the shape is no longer symmetircal is because lone pairs repel more than the bond pairs of the N-H, and essentially the bonding pairs are "squeezed" together, which accounts for the smaller than expected bond angle of 107 degrees)
What is the hybridization of AsH3?
this molecule has a similar shape to ammonia, however the bond angles are less- ammonia is 1070 whereas arsine is only 91 0. Usually it is said that the hybridisation in AsH3 is sp3 (however this would imply a bond angle of 109.5- which is close to the ammonia angle)- however the angle of 91 0 is so close to the angle between the p orbitals (900)that it suggest there is no hybridisation at all, and that the As- H bonds involve only p orbitals.
Why are hydrogen atoms positioned 120 degrees apart in a water molecule?
They are NOT, the angle is 109.4o, not 120o and certainly not 180o
What is the angle between the bonds of a water molecule?
The bond angle of the H-O-H is equivalent to 105 degrees.
What is the valence angle between hydrogen atoms in a ammonia molecule?
The HNH angle is 107.8 0
What is the experimental bond angle for ammonia?
Bond angles in various molecules tend to be as big as possible and therefore we would expect a bond angle of 120°. Ammonia, however, is a permanent dipole and therefore acts like it owns a 4th hydrogen atom. Ammonia more or less acts like a tetrahedral molecule. This phenomena occurs in water as well. The theoretical bond angle for a tetrahedral molecule would be 109.5°, but in ammonia it's a little lower, the experimental bond angle of ammonia is 107°. This is because of the additional repulsive force of the electron pair occupying the "fourth" spot of the tetrahedron.
What is the size of hydrogen sulphide molecule?
According to wikipedia, one S-H side of the molecule spans a nominal 133.6 pm and the angle between the two arms of the molecule is 92.1o.
What is hydrogen's bond angle?
Hydrogen the molecule doesn't have a bond angle. You have to have an atom with at least two other atoms bonded to it to have a bond angle, and hydrogen has only two atoms total.
Why is ammonia considered a polar molecule?
Ammonia is a polar molecule because the different electronegativity's of the nitrogen and the hydrogen molecules makes the hydrogen slightly positive and the nitrogen slightly negative. However there are 2 valance electons of the nitrogen atom which are not bonded to anything, which are called lone pairs. The lone pairs means that the ammonia molecule is not symmetrical therefore the electronegativity's do not cancel eachother, creating a polar molecule. ( The reason why the shape is no longer symmetircal is because lone pairs repel more than the bond pairs of the N-H, and essentially the bonding pairs are "squeezed" together, which accounts for the smaller than expected bond angle of 107 degrees)
What is the hybridization of AsH3?
this molecule has a similar shape to ammonia, however the bond angles are less- ammonia is 1070 whereas arsine is only 91 0. Usually it is said that the hybridisation in AsH3 is sp3 (however this would imply a bond angle of 109.5- which is close to the ammonia angle)- however the angle of 91 0 is so close to the angle between the p orbitals (900)that it suggest there is no hybridisation at all, and that the As- H bonds involve only p orbitals.
Which molecule has 120 degrees bond angle?
A trigonal planar molecule such as sulfur trioxide (SO3) or boron trihydride (BH3) has a trigonal planar shape. Trigonal pyramidal molecules such as ammonia (NH3) have bond angle closer to 107 degrees.
Angle between hydrogen and carbon in methane?
109.28
What bond angle does H20 have?
The angle between the two Hydrogen atoms, ie the bond angle, is 104.45 degrees. This differs from the normal 109.5 degrees because the two lone electron pairs repel and are trying to distance themselves.
What is a tetrahedral angle?
In a tetrahedral molecule the characteristic angle between atoms is 109,5 degrees.
Is there such a thing as a water molecule?
Yes. Each molecule consists of 2 hydrogen atoms covalently bonded to 1 oxygen atom at a combined angle of about 104.45°.
Why are hydrogen atoms positioned 120 degrees apart in a water molecule?
They are NOT, the angle is 109.4o, not 120o and certainly not 180o
