Which element has 32 protons in its nucleus? phosphorus cobalt germanium sulfur
2 answers:
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<h2>Answer:0.5 moles,1 mole</h2>
Explanation:
is readily soluble in water.
dissolves in water to give
ions and
ions.
The reaction is
→
So, mole of
gives
mole of
and
moles of
.
So, moles of
gives
moles of
and
mole of
.
The density is 3.144 g / cm^3.
<u>Explanation</u>:
If effective number of atom in NaCl type structure, z = 4
a = 705.2 pm ⇒ In centimeter = 705.2 10^-10
Na = 6.023 10^23
density = (molecular weight) (z) / (Na) (a^3)
where molecular weight of KI is 166 g,
Z represents the atomic number
density = (molecular weight) (z) / (Na) (a^3)
= (166 4) / (6.023
10^23)
(705.2
10^-10)
density = 3.144 g / cm^3.