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zaharov [31]
3 years ago
10

If 100 ml of some pb(no3)2 solution is mixed with 100 ml of 6.50 x 10−2 m nacl solution, what is the maximum concentration of th

e pb(no3)2 solution added if no solid pbcl2 forms? (assume ksp = 2.00 x 10−5 m at this temperature.) enter the concentration in m.
Chemistry
1 answer:
Alex73 [517]3 years ago
7 0
Suppose X (in unit M) be the required maximum concentration of the Pb(NO₃)₂ solution added after mixing with 100 ml of 6.5 x 10⁻² M NaCl, the Pb²⁺ concentration is:
[Pb²⁺] = (X*100) / 200 = 0.5 X
The concentration of Cl⁻ is:
[Cl⁻] = (100 / 200) * (6.5 x 10⁻² M) = 0.0325 M
So:
Ksp = 2.00 x 10⁻⁵ = [Pb²⁺] [Cl⁻]² = (0.5X) * (0.0325)²
X = (2.00 x 10⁻⁵) / (5.28 x 10⁻⁴) = 0.038 M
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Take 5.25 grams and give it proportionally to the carbon
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7 0
3 years ago
A solution of AgNO3 contains 29.66 g of solute in 100.0 mL of solution. What is the molarity of the solution
Julli [10]

Answer:

1.7 M

Explanation:

Given data:

Mass of AgNO₃ = 29.66 g

Volume of solution = 100 mL (100/1000 = 0.1 L)

Molarity of solution = ?

Solution;

Number of moles of AgNO₃:

Number of moles = mass/ molar mass

Number of moles = 29.66 g/ 169.87 g/mol

Number of moles = 0.17 mol

Molarity of solution:

Molarity =  moles of solute / volume of solution in L

Molarity = 0.17 mol / 0.1 L

Molarity = 1.7 M

6 0
3 years ago
A double bond between two carbon atoms involves the sharing of a total of
ycow [4]
Is four electrons the answer you’re looking for?
6 0
3 years ago
In Niels Bhor's model of the atom, electrons move
exis [7]
Bohrs model says that electrons move in fixed shells (which have fixed distances) around the nucleus of an atom. 
5 0
3 years ago
Aluminum has a face-centered cubic unit cell. How many atoms of Al are present in each unit cell
Serjik [45]

Answer:4

Explanation:

As shown in the image attached, a face-centred cubic structure has 8 atoms at the corners and 6 face center atoms.

Each corner atom contributes to eight cell, so per unit cell 1/8 ×8 =1atom

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Total atoms =3+1=4atoms

Therefore the atoms in Al FCC per unit cell is 4

7 0
3 years ago
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