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Answer:</h3>
1.75 L HNO₃
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Explanation:</h3>
We are given;
Molarity of HNO₃ as 0.250 M
Mass of NaOH as 17.5 g
Volume of NaOH = 350 mL
We are required to calculate the volume of 0.250 M
We are going to first write the balanced reaction:
NaOH(aq) + HNO₃(aq) → NaNO₃(aq) + H₂O(l)
Then, we calculate the number of moles of NaOH
Moles = Mass ÷ Molar mass
Molar mass of NaOH = 39.997 g/mol
= 17.5 g ÷ 39.997 g/mol
= 0.4375 moles
We can now calculate the number of moles of HNO₃ using the mole ratio from the equation;
Mole ratio of NaOH to HNO₃ is 1 : 1
Therefore, if moles of NaOH are 0.4375 moles then;
Moles of HNO₃ will also be 0.4375 moles
We can now calculate the volume of HNO₃
Morality = Number of moles ÷ Volume
Thus;
Volume = Number of moles ÷ Molarity
= 0.4375 moles ÷ 0.250 M
= 1.75 L
Therefore, the volume of HNO₃ is 1.75 L
In Chemistry, to better determine the position of a certain electron, quantum numbers are used. The four quantum numbers are n, l, m and s. In the given above of n= 4, the principal quantum number is 4 and this represents the overall relative energy in the orbital. This means that we are to find the maximum number of electrons in fourth main energy level and the answer is 32.
Justification for your answer
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Chlorine is less reactive than fluorine because the outer electrons in a chlorine atom are further from the nucleus than the outer electrons in a fluorine atom. It is harder for a chlorine atom to gain an electron than it is for a fluorine atom.
There are three things to consider every single time relative reactivity is unknown; atomic radius, shielding, and number of electrons. The reactivity is the halogens ability to gain an electron, so number of electrons already in the atom plays a vital role. Chlorine has more electrons so repels a reacting electron with greater force than fluorine, making it less likely to react.
Fluorine also has fewer electron shells than chlorine, so there are fewer electrons between the positive nucleus and the reacting electron to essentiallly block, or weaken, the electromagnetic attraction. This is shielding. Lastly, fluorine is much smaller molecule than chlorine, and the shorter distance, or radius, between the nucleus and the electron again makes it more likely to attract the electron and react to gain a noble gas configuration.
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thermal conduction and convection processes we explain the temperature profile: warmer at the bottom and colder at the top
Temperature is a measure of the internal energy of molecules.
When the pot is on the burner, the lower part of the pot acquires energy from the flame, this energy increases the temperature of the metal that is in contact with the liquid from the bottom, by a process of thermal conduction, while the liquid in the top is kept at the same temperature.
As time progresses, the hotter lower liquid, for which it has a lower with the metal bottom heats up by conduction. density, conscientiously rise and a transfer of heat is created by convection, which raises the temperature of the hot liquid and makes the liquid fall that is colder from the upper part than at the coming into contact
This cycle is repeated heating all the liquid. But the liquid with the liquid in the lower part always at a higher temperature than the liquid in the upper part, the process stops when the liquid in the lower part reaches the boiling point, than the passage from liquid to gas, during which the temperature remains constant.
With the thermal conduction and convection processes we explain the temperature profile: warmer at the bottom and colder at the top.
Learn more about temperature transfer here: brainly.com/question/24200572
