Benzoic acid is separated from acetanilide using sodium bicarbonate by converting it into sodium benzoate, which is soluble in water. Acetanilide remains unaffected in the mixture.
In the process of separating benzoic acid from acetanilide using sodium bicarbonate, the basic nature of sodium bicarbonate reacts with the acidic benzoic acid, leading to the formation of sodium benzoate. The sodium benzoate is highly soluble in water, allowing it to be easily separated from the acetanilide, which remains insoluble. On the other hand, acetanilide is not affected by the sodium bicarbonate and remains unaffected in the mixture.
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O B. A mass extinction
O C. The disappearance of land bridges
O D. The end of the last ice age
Answer:
A mass extinction
Explanation:
Answer: Protons inside the nucleus of an atom are held together despite having the same positive charge because of the strong nuclear force, also known as the strong nuclear interaction or simply the strong force. The strong force is one of the fundamental forces in nature, along with gravity, electromagnetism, and the weak nuclear force. It is responsible for binding protons and neutrons (collectively known as nucleons) together in the nucleus of an atom.
Explanation: The strong force is an extremely powerful force at very short distances, acting over a range of about 1 femtometer (10^-15 meters). This force is much stronger than the electrostatic repulsion between protons due to their positive charges. So, even though protons have the same positive charge and would naturally repel each other due to the electromagnetic force, the strong nuclear force overcomes this repulsion and binds them together within the nucleus, keeping the nucleus stable.
Protons inside the nucleus of an atom are held together by the nuclear force, also known as the strong nuclear force. This force is strong enough to override the repulsive electromagnetic force between protons.
Protons inside the nucleus of an atom, despite having the same positive charge and thus naturally repelling each other, are held together fundamentally due to a force called the nuclear force, sometimes referred to as the strong nuclear force or strong interaction.
This is one of the four basic forces of nature, the others being gravity, electromagnetic force, and the weak nuclear force. The nuclear force is so strong that it overrides the repulsive electromagnetic force between protons thereby holding the protons together inside the nucleus.
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True
False
Answer:
It is indeed False
There are approximately 1.0545 x 10^24 atoms in 1.75 mole of CHCl3.
To calculate the number of atoms in 1.75 mole of CHCl3, we need to use Avogadro's number, which is 6.02 x 10^23 atoms per mole. The atomic mass of CHCl3 can be calculated by adding up the atomic masses of its constituent atoms. Carbon has an atomic mass of 12.01 g/mol, hydrogen has 1.01 g/mol, chlorine has 35.45 g/mol, and there are 3 chlorine atoms in CHCl3. So, the total atomic mass of CHCl3 is 12.01 + (1.01 x 3) + 35.45 = 119.48 g/mol. Therefore, 1.75 mole of CHCl3 contains (1.75 mol) x (6.02 x 10^23 atoms/mol) = 1.0545 x 10^24 atoms.
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To find the number of atoms in 1.75 moles of CHCl3, multiply 1.75 moles by Avogadro's number, then by the number of atoms per CHCl3 molecule to get approximately 5.26925 × 10^24 atoms.
To calculate the number of atoms in 1.75 moles of CHCl3, we'll follow a few simple steps. First, remember that 1 mole of any substance contains Avogadro's number of particles, which is 6.022 × 10^23 particles/mole. The formula CHCl3 consists of 1 atom of carbon, 1 atom of hydrogen, and 3 atoms of chlorine for a total of 5 atoms per molecule.
So, if we have 1.75 moles of CHCl3, we can multiply this by Avogadro's number to find the number of molecules:
1.75 moles × 6.022 × 102^3 molecules/mole = 1.05385 × 10^24 molecules of CHCl3
Then, we multiply the total number of molecules by the number of atoms per molecule:
1.05385 × 10^24 molecules × 5 atoms/molecule =
5.26925 × 10^24 atoms
Therefore, there are approximately 5.26925 × 10^24 atoms in 1.75 moles of CHCl3.
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A) C-N
B) C-O
C) C-C
D) C-Cl
E) C-F