5.5 litres is the volume of chlorine gas at 38oC and 1.63 atm is needed to react completely with 10.4 grams of sodium to form sodium chloride.
Explanation:
data given:
mass of sodium chloride in reaction = 10.4 grams
atomic mass of one mole of NaCl = 58.44 grams/mole
balanced equation for the reaction:
2Na (s) + Cl2 (g) 2NaCl (s).
number of moles =
=
= 0.17 moles of Na in the reaction.
from the reaction,
2 moles of Na reacted with 1 mole of Cl2
0.17 moles of Na reacted with x moles
=
x = 0.35 moles of chlorine gas reacted to form NaCl
To know the volume following equation will be used:
PV = nRT
V = R=0.0826 L atm/Mole.K, T = 311.15, P= 1.63 atm, n= 0.35 moles
V =
V = 5.5 litres is the volume of chlorine gas formed at given conditions.
Answer:
There are 27 Valence electrons : )
4+1+1+1+6+4+1+1+4+1+1+1 is 27
Answer:
Ionic bonds hold charged particles in solid NaCl together, such that they are unable to move or conduct electricity.
Explanation:
Consider an electric current that flows through a conductor: charge moves in a uniform direction from one end of the conductor towards the other.
Thus, there are two conditions for a substance to conduct electricity:
- The substance shall contain charged particles, and
- These charged particles shall be free to move across the substance.
A conductor of electricity shall meet both requirements.
Now, consider the structure of solid NaCl . NaCl is an ionic compound. It contains an ocean of oppositely charged ions:
- Positive ions, and
- Negative ions.
Ions carry charge. Thus, solid NaCl contains charged particles and satisfies the first condition.
Inside solid NaCl , electrostatic attractions ("ionic bonds") between the oppositely charged ions hold these ions in rigid ionic lattices. These ions are unable to move relative to each other. As a result, they cannot flow through the solid to conduct electricity. Under solid state, NaCl is unable to satisfy the second condition.
As a side note, melting NaCl into a liquid breaks the ionic bonds and free the ions from the lattice. Liquid NaCl is a conductor of electricity.
Answer:
3
Explanation:
conduct experiment on live animal is not human way so it's a question of morality...
Answer:
The atmospheres of Jupiter and Saturn are made almost entirely of hydrogen and helium, although there is some evidence they contain hydrogen compounds. The there is Uranus and Neptune that are made primarily of hydrogen compounds, with smaller traces of hydrogen, helium, metal and rock.
Explanation:
Hope this helps.