Yes this is a true statement
Answer:
<h2><em>I hope this help you. Mark me as brainliest and rate please</em></h2>
Explanation:
<em>the terms strong and weak as applied to acids. As a part of this it defines and explains what is meant by pH, Ka and pKa.
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<em>It is important that you don't confuse the words strong and weak with the terms concentrated and dilute.
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<em>As you will see below, the strength of an acid is related to the proportion of it which has reacted with water to produce ions. The concentration tells you about how much of the original acid is dissolved in the solution.
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<em>It is perfectly possible to have a concentrated solution of a weak acid, or a dilute solution of a strong acid. </em>
pH at the equivalence point is 3.60
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Define pH.</h3>
pH is a numerical indicator of how acidic or basic aqueous or other liquid solutions are. The phrase, which is frequently used in chemistry, biology, and agronomy, converts the hydrogen ion concentration, which typically ranges between 1 and 
gram-equivalents per liter, into numbers between 0 and 14. The hydrogen ion concentration in pure water, which has a pH of 7, is 
gram-equivalents per liter, making it neutral (neither acidic nor alkaline). A solution with a pH below 7 is referred to as acidic, and one with a pH over 7 is referred to as basic, or alkaline.
given that,
HNO2 = 0.100M
KOH= 0.200M
pKa = 3.34
using formula,
pH = pKa + log (salt /acid)
= 3.34 + log (0.200/0.100)
= 3.34 + log 2
= 3.34 + 0.30
= 3.60
pH at the equivalence point is 3.60
Learn more about hydrogen ion concentration here:-
brainly.com/question/21931436
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When water evaporates, what is left behind is the salt that is dissolved. So you end up with the same amount of salt before and after. Meaning that the answer is 50 grams.
12.3 Each substance has a standard molar entropy which tells how dispersed the energy is in one mole of the substance at 1 bar of pressure and 25ºCconditions at which it remains in its standard state. This is influenced by the molecules’ molar masses (the greater mass, the more entropy), the amount of organization of the structure if a solid (which impacts how rigid the substance is; think about a bunch of things held together tightly, they cannot move as much as if they were loosely connected, therefore the more rigid the less microstates, less entropy), and the ways all the molecules interact with each other within the substance. These interactions depend on rotational motion, or how they bump into each other
