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Fantom [35]
4 years ago
15

What is the pH of KOH solution that has H+= 1.87 x10^-13

Chemistry
2 answers:
kakasveta [241]4 years ago
4 0
The pH of a solution is calculated as pH = -log[H+], where [H+] is the concentration of H+ ions. Based on the given concentration in the problem,
pH = -log(1.87 x 10^-13 M) = 12.73
Therefore, the pH of the solution is 12.73, and this implies a strongly basic solution.
vovangra [49]4 years ago
4 0

12.7

the next two are 2.24 and 7.00

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How are acids and bases similar and different
const2013 [10]

Answer & Explanation:

<u>Similarities:</u>

  • Both acids and bases are electrolytes which means that they're good conductors of electricity.
  • Acids and bases both produce ions in water solution.

<u>Difference:</u>

  • Acids release hydrogen ions (H⁺) whereas, bases release hydroxide ions (OH⁻).
6 0
4 years ago
What is the name of the ionic compound, NaOH
Arisa [49]
SODIUM HYDROXIDE

IUPAC ID


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7 0
3 years ago
At 35.0°C and 3.00 atm pressure, a gas has a volume of 1.40 L. What pressure does the gas have at 0.00°C and a volume of 0.950 L
Luba_88 [7]

The answer to your question is

A. P2=P1V1T2/T1V2

Trust me I am learning this stuff in class and I got everything memorized

I hope this helps

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7 0
3 years ago
Read 2 more answers
When an electron in an atom absorbed a photon, the energy of the electron changed by 2.94 x 10-19 J. What is the frequency of th
jok3333 [9.3K]

When an electron in an atom absorbed a photon, the energy of the electron changed by 2.94 × 10⁻¹⁹. The frequency of the photon is 4.4 × 10¹⁴ Hertz .

<h3>How to calculate the frequency of photon ?</h3>

To calculate the frequency of photon use the expression

E = hv

where,

E = Energy

h = Planck's Constant

v = frequency (Hz)

Put the value in above formula we get

E = hv

2.94 × 10⁻¹⁹ = 6.6 × 10⁻³⁴ × v

v = \frac{2.94 \times 10^{-19}\ J}{6.6 \times 10^{-34}}

  = 0.44 × 10¹⁵

  = 4.4 × 10¹⁴

Thus from the above conclusion we can say that When an electron in an atom absorbed a photon, the energy of the electron changed by 2.94 × 10⁻¹⁹. The frequency of the photon is 4.4 × 10¹⁴ Hertz .

Learn more about the Plank's Constant here: brainly.com/question/27163891

#SPJ4

6 0
2 years ago
1. How is the density of a substance calculated? 2. If the shape of an object is irregular, like a stone, how can you measure it
andriy [413]
1. Density is calculated by dividing the object's mass by the volume it occupies. 
2. The volume may be determined by water displacement method.
3. D = m/v
Substituting the known values,
                 D = 10.0 g / 15.625 cm³ = 0.64 g/cm³
5 0
3 years ago
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