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Verdich [7]
3 years ago
8

What is the pH of the lye in soap ?

Chemistry
2 answers:
lord [1]3 years ago
7 0

Answer:

The pH of the lye in soap is 13.

Explanation:

igomit [66]3 years ago
3 0
9-10, when too much fluke is used there is not enough oil to turn it into soap. This lye is “free-floating” in the soap which increases the pH level. Soap with high pH will irritate or burn the skin and should not be used.
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The pre-exponential constant and activation energy for the diffusion of iron in cobalt are 1.7 x 10-5 m2/s and 273,300 J/mol, re
Kitty [74]

<u>Answer:</u> The temperature of the system will be 1622 K

<u>Explanation:</u>

The equation relating the pre-exponential factor and activation energy follows:

\log D=\log D_o-\frac{E_a}{2.303RT}

where,

D = diffusion coefficient = 2.7\times 10^{-14}m^2/s

D_o = pre-exponential constant = 1.7\times 10^{-5}m^2/s

E_a = activation energy of iron in cobalt = 273,300 J/mol

R = Gas constant = 8.314 J/mol.K

T = temperature = ?

Putting values in above equation, we get:

\log (2.7\times 10^{-14})=\log (1.7\times 10^{-5})-\frac{273,300}{2.303\times 8.314\times T}\\\\T=1622K

Hence, the temperature of the system will be 1622 K

8 0
3 years ago
What compound is always produced when an acid and a base are combined?
denis-greek [22]
Salt and water are formed

H₃PO₄ + 3KOH = K₃PO₄ + 3H₂O
CH₃COOH + NaOH = CH₃COONa + H₂O
5 0
3 years ago
A gas that exerts a pressure of
irina [24]

Answer:

V1 = 3.09 L

Explanation:

Initial Pressure, P1 = 15.6 psi

Initial Volume, V1 = ?

Final Pressure, P2 = 25.43 psi

Final Volume, V2 = 1.895 L

The relationship between these quantities is given by boyles law;

V1P1 = V2P2

V1 = V2P2 / P1 = 1.895 * 25.43 / 15.6

V1 = 3.09 L

3 0
3 years ago
Weather models are primarily used for what purpose
deff fn [24]
To help plan for likely weather events.
4 0
3 years ago
Which of these types of electromagnetic radiation has the lowest energy?
brilliants [131]
Radio waves
Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
7 0
3 years ago
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