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ruslelena [56]
2 years ago
15

1.Calculate the mass of compound required to prepare 100.00 mL of a 1.40x10-2M CuCl2.Show your work.

Chemistry
1 answer:
Verdich [7]2 years ago
5 0

The concentration of the diluted solution is 0.0625 M.

<h3>What is concentration?</h3>

The term concentration refers to the amount of substance present in solution.

1) To find the mass of the compound;

mass/134 g/mol = 1.40x10-2M × 100/1000

mass = 1.40x10-2M × 100/1000 × 134 g/mol

mass = 0.19 g

2) To find the molarity of the solution;

2.50 g/40 = 100/1000 × M

M = 2.50 g/40 × 1000/100

M = 0.625 M

3) Using;

C1V1 = C2V2

0.625 M × 10.00mL = C2 × 100.00 mL

C2 = 0.625 M × 10.00mL/ 100.00 mL

C2 = 0.0625 M

Learn more about concentration: brainly.com/question/3045247

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3 years ago
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If the ratio of the length of a rectangle to its width is 3 to 2, what is the
borishaifa [10]

Answer:

Length of a rectangle whose width is 4 inches is

<u>6 inches</u>

Explanation:

Ratio of length  to its width is 3 to 2

Let length  = L

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\frac{L}{B} =\frac{3}{2}

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Insert  B in above equation

\frac{L}{B} =\frac{3}{2}

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Conversion(if required) ,

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L = 15.24 cm

8 0
3 years ago
How many moles are in 9.8 x 1024 atoms of calcium?
Ratling [72]

Explanation:

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4 0
3 years ago
Describes how Anders Celsius devised the temperature scale that bears his name
shusha [124]
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3 0
3 years ago
The ph of a 0.55 m aqueous solution of hypobromous acid, hbro, at 25.0 °c is 4.48. what is the value of ka for hbro?
gladu [14]
Hbro  dissociate  as  follows
HBro--->  H+  +  BrO-
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