Answer:
84.6 mL
Explanation:
To get the total volume of soultion we must add the given volumes together.
4.21 mL + 80.4 mL = 84.6 mL
Answer:
C. “The electrons are moving easily between the nuclei of metal atoms.”
Explanation:
i got a 100 on the quiz
Answer:
1.024 x 10⁻²²g
Explanation:
Data Given:
mass of copper = 63.5 g
no. of atoms of copper = 6.02 x10²³ atoms
mass of of an average copper = ?
Solution:
As 6.02 x10²³ atoms have 63.5 g of mass then what will be the mass of atom.
Apply unity formula
63.5 g of copper ≅ 6.02 x10²³ atoms of copper
mass of copper atom ≅ 1 atom of copper
Do cross multiplication
mass of copper atom = 1 atom x 63.5 g / 6.02 x10²³ atoms
mass of copper atom = 1.024 x 10⁻²² g
mass of an average copper atom = 1.024 x 10⁻²² g
No because the one valence electron it had is gone so it’s not stable hope this helps
<span>Number of moles of aluminum chloride = 0.216. </span>
<span>Mass of compound = Number of moles x Molar Mass </span>
<span>= 0.216mol x [ 37 + 3(35.5) ]g/mol </span>
<span>= 30.996 </span>
<span>= 31.0g (3 s.f.)</span>
