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avanturin [10]
3 years ago
5

at 298 k the H+ ion concentration of a aqueous solution is 1.00 x 10-5 M what is the pH of the solution

Chemistry
1 answer:
Basile [38]3 years ago
7 0

Answer:

pH = 5.00

Explanation:

The pH is an unit of concentration widely used in chemistry and quality control of aqueous solutions. It serves to find the security of a product to human or pet consumption. Is defined as:

pH = -log [H+]

That means, the pH of a solution that is [H+] = 1.00x10⁻⁵M:

<h3>pH = 5.00</h3>
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The reaction below will occur in a gaseous system at STP:
WARRIOR [948]

Answer:

V = 12.5 L

Explanation:

Given data:

Volume of NO = 15.0 L

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Volume of nitrogen gas produced = ?

Solution:

Chemical equation:

6NO + 4NH₃    →     5N₂ + 6 H₂O

Number of moles of NO:

PV = nRT

n = PV/RT

n = 1 atm × 15.0 L / 0.0821 atm.L /mol.K × 273.15 K

n = 15.0 atm.L / 22.43 atm.L /mol

n = 0.67 mol

now we will compare the moles of No and nitrogen gas.

              NO           :         N₂

               6             :          5

              0.67         :         5/6×0.67 = 0.56

Volume of nitrogen gas:

 PV = nRT

1 atm × V = 0.56 mol ×  0.0821 atm.L /mol.K × 273.15 K

V = 12.5 atm.L / 1 atm

V = 12.5 L

4 0
3 years ago
The reaction of aluminum with chlorine gas is shown.
mr Goodwill [35]

Answer:

See below

Explanation:

The equation shows    Al / Cl  = 2/3      or    3/2 Al = Cl

                                                                        3/2(20) = 30 Cl atoms needed

The equation shows a one-to-one relationship between Al and AlCl3

   produced     so if you use 20 Al atoms you get 20 AlCl3 molecules

5 0
2 years ago
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