Answer:
the volume delivered by the pipette = 22.32 mL
Explanation:
To calculate this, let us first note that the density of water relates it weight and its volume (density = mass ÷ volume), hence we are going to use density to determine the volume.
Density of water = mass/volume = 0.997 g/ mL
mass = 22.25g
Density = 0.997g/mL
volume = ?
∴ the volume delivered by the pipette = 22.32 mL
<em>Please note that this calculation is based on the fact that the weight of the empty flask has been determined and canceled out.</em>
<span>Yes, that would be called an ionic~ bond.</span>
Answer:
Explanation:
1. Boron nitride is prepared synthetically in lab.
2. When ammonia is treated with boric acid or boron trioxide boron nitride is prepared.This are the other reaction to produce boron nitride.
3. B
2
O
3
+2NH
3
→2BN+3H
2
O (T = 900 C)
4. B(OH)
3
+NH
3
→BN+3H
2
O (T = 900 C)
5. B
2
O
3
+CO(NH
2
)
2
→2BN+CO
2
+2H
2
O (T > 1000 C)
6. B
2
O
3
+3CaB
6
+10N
2
→20BN+3CaO (T > 1500 C)
Properties of Boron nitride :
1. Boron nitride is ionic in nature hence it reduces he co valency and electrical conductivity.
2. Hexa-boron nitride is thermally stable.1. Boron nitride is prepared synthetically in lab.
2. When ammonia is treated with boric acid or boron trioxide boron nitride is prepared.This are the other reaction to produce boron nitride.
3. B
2
O
3
+2NH
3
→2BN+3H
2
O (T = 900 C)
4. B(OH)
3
+NH
3
→BN+3H
2
O (T = 900 C)
5. B
2
O
3
+CO(NH
2
)
2
→2BN+CO
2
+2H
2
O (T > 1000 C)
6. B
2
O
3
+3CaB
6
+10N
2
→20BN+3CaO (T > 1500 C)
Properties of Boron nitride :
1. Boron nitride is ionic in nature hence it reduces he co valency and electrical conductivity.
2. Hexa-boron nitride is thermally stable.
Answer:
Activation energy = 1.152 kJ/mol
Explanation:
See attached pictures.
Answer:
I think it's 7089 because that's my answer to your questions