A greater volume of acid will be needed to neutralize the sodium hydroxide thereby making the calculated concentration of acid for the second trial to decrease.
Titration is usually a way of determining the concentration of an unknown solution by accurately measuring the volume of a known solution that reacts completely with the unknown solution.
The point when reaction is completed is indicated by the end point of the reaction. If more base (sodium hydroxide) is added to the flask, then more volume of acid will be needed to neutralize it thereby making the calculated concentration of acid for the second trial to decrease.
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Answer:
26
Explanation:
Given parameters:
Number of neutrons = 14
Unknown:
Mass number = ?
Solution:
The mass number of an atom is the sum of protons and neutrons in the atom.
mass number = number of protons + number of neutrons
Since the atom here is magnesium, number of protons is 12
Mass number = 14 + 12 = 26
Answer:
It is none. Echo is formed when sound waves hit a hard surface.
Explanation:
Answer : The net ionic equation will be,
Explanation :
In the net ionic equations, we are not include the spectator ions in the equations.
Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.
The given balanced ionic equation will be,
In this equation, 
are the spectator ions.
By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.
Thus, the net ionic equation will be,
The answer would be C. In fact, letter A already defines the Law of Definite Proportions. On the other hand, J.J. Thomson was responsible for the discovery of electrons through cathode ray tube experiments. The rest of the choices are true.
