First we have to write balanced chemical equation:
CuSO₄.5H₂O + 4 NH₃ → [Cu(NH₃)₄]SO₄.H₂O + 4 H₂O
then calculate the molar mass of both CuSO₄.5H₂O and [Cu(NH₃)₄]SO₄.H₂O
MM CuSO₄.5H₂O = 249.612 g/mole
MM [Cu(NH₃)₄]SO₄.H₂O = 245.612 g/mole
from equation we see that:
1 mole CuSO₄.5H₂O ---gives ---> 1 mole [Cu(NH₃)₄]SO₄.H₂O
249.612 g ---gives ---> 245.612 g
? grams ---gives ---> 6 g complex
By cross multiplication we get that:
mass of CuSO₄.5H₂O required = 6.1 g
Answer:- First choice is correct, "It has two polar single bonds and a bent shape."
Explanations:- In water, O atom is the central atom and two H atoms are bonded with a single bond by the sharing of electrons to the central atom. Since there is a sharing of electrons, the bonds between O and H atoms are covalent.
Oxygen atom is more electron negative as compared to H atom, so the shared electrons are more towards oxygen atom and it generates a partial negative charge on O and partial positive charge on H atoms and makes the bond polar covalent.
The molecule would be linear if the central atom doesn't have lone pair of electrons. Since, there are two lone pair of electrons around O atom, there becomes repulsion between two lone pairs and the lone pairs and bond pairs also and the molecule becomes asymmetrical and it's shape becomes bent.
So, the water molecule has two polar single bonds and a bent shape.
Answer:
B).Methane, CH4
Explanation:
Methane is a compounds is primarily covalent because it is a saturated hydrocarbon.
For the triplet AUG, I got methionine, which is a start codon. For GCU, I got alanine.
