plz ans me this question with solutions
Attachments:
Answers
Answered by
2
1) The answer is 6.022×10^23
Since its not in options , the anwer is
d) 6.023×10^23
Explaining:-
Mass of 0.0018 ml H2O= 0.0018×1 = 0.0018 g.
Molar mass of water = 18 g/mol.
number of moles in 0.0018g of water =
number of water molecules in 1 mole = 6.022×10²³ molecules.
2) c) Law of conservation of mass
3) b) 2 unpaired electrons
Explaining:-
Ni has electronic configuration as1s22s22p63s23p64s23d8Ni2+ has 1s22s22p63s23p63d8. So there are two unpaired electron and quantum number isn=3, l=2, m =+1, s=+12n=3, l=2, m =+2, s=+12
4) Be– will be least stable. It has lowest I.E.
b) Be-
Since its not in options , the anwer is
d) 6.023×10^23
Explaining:-
Mass of 0.0018 ml H2O= 0.0018×1 = 0.0018 g.
Molar mass of water = 18 g/mol.
number of moles in 0.0018g of water =
number of water molecules in 1 mole = 6.022×10²³ molecules.
2) c) Law of conservation of mass
3) b) 2 unpaired electrons
Explaining:-
Ni has electronic configuration as1s22s22p63s23p64s23d8Ni2+ has 1s22s22p63s23p63d8. So there are two unpaired electron and quantum number isn=3, l=2, m =+1, s=+12n=3, l=2, m =+2, s=+12
4) Be– will be least stable. It has lowest I.E.
b) Be-
shinu14:
thanx
itz my pleasure
Similar questions