Answer: 2.0 (acidic solution)
Explanation: When a salt is formed by the reaction of strong acid and a weak base , it will be acidic in nature and thereby its pH will be less than 7.
In the process, conjugate acid will be formed which will react with water to give the hydronium ion (H_{_{3}}O ^{+})
Thus as the positive ion species is increasing, it will make the solution acidic in nature.
The pH value of a salt that is formed by the reaction of a strong acid and a weak base is: 2.0 (acidic solution)
pH value is a value on the pH scale that tells us how acidic or basic a solution can be.
When a salt is formed by the reaction of strong acid and a weak base , it will be acidic in nature and thereby its pH will be less than 7.
In conclusion, The pH value of a salt that is formed by the reaction of a strong acid and a weak base is: 2.0 (acidic solution)
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To solve this we must be knowing each and every concept related to direct relationship. Therefore, the value for each of the given points can be given as below.
The relationship between the two supplied quantities can be used to construct one of two forms of proportionality. Direct proportion as well as inverse proportion are those. In mathematics, a direct proportion is indeed a comparison of two integers in which the ratio of both numbers equals a fixed amount.
According to the concept of proportion, two ratios are in proportion when they are equal. When an increase or reduction in one quantity causes an equivalent rise or fall in the other, the two quantities are said to be directly proportional.
Mathematically,
The x and y are directly related
k=8
x=0.5, y=4
x=1, y=8
x=2, y=16
x=3, y=2
Therefore, the value for each of the given points can be given as above.
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(B) 100
(C) 15
(D) 25
(E) 30
MC₂H₄O₂ = 2 * 12 g/mol + 4 * 1 g/mol + 2 * 16 g/mol = 60 g/mol
c = 0.5 mol/L
V = 1 L
n = c * V
n = 0.5 mol/L * 1 L = 0.5 mol
m = n * M
m = 0.5 mol * 60 g/mol = 30 g/mol
answer E
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The book that influenced Giordano Bruno's idea of an infinite universe was 'De revolutionibus orbium coelestium' by Nicolaus Copernicus. It opposed the geocentric model, leading to Bruno's emphasis on the infinite universe theory. Though banned, the book wielded substantial impact.
The book that Giordano Bruno read, which gave him the idea that the Universe was infinite, was 'De revolutionibus orbium coelestium' ('On the Revolutions of the Heavenly Spheres') written by Nicolaus Copernicus. Belonging to the heliocentric theory, the book challenged the geocentric model in which Earth was at the universe's core. Bruno emphasized the argument of an infinite universe presented in the text, which ultimately got him into trouble with the Inquisition. Despite being banned, its impact on Bruno and scientific thought was significant.
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Gallium-69, an isotope of Gallium, contains 31 protons, 31 electrons and 38 neutrons.
Gallium-69 is a specific isotope of the element Gallium.Gallium is the element with atomic number 31 on the periodic table. This atomic number means that a Gallium atom has 31 protons in its nucleus. Given that in a neutral atom the number of electrons equals the number of protons, we can also deduce that Gallium-69 contains 31 electrons.
The number following the name of the element, 69 in this case, is the isotope's mass number, which is the total number of protons and neutrons that an atom of that isotope contains in its nucleus. To find the number of neutrons in Gallium-69, you simply subtract the number of protons from the mass number. This yields 69 - 31 = 38. Thus, Gallium-69 has 38 neutrons.
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