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gavmur [86]
3 years ago
8

State the location and the total charge of the protons in a Ni-64 atom.

Chemistry
2 answers:
Pani-rosa [81]3 years ago
7 0

Answer : The location of proton is nucleus and the total charge of the protons in a Ni-64 atom is +28 charge.

Explanation :

As we know that an atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or center of the nucleus where the mass of the an atom is concentrated and the electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

The isotopic representation of an atom is: _Z^A\textrm{X}

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

As we are given ^{64}_{28}Ni atom.

Atomic number of Ni atom = 28

Mass number of Ni atom = 64

As we know that the atomic number is equal to the number of protons and 1 proton has (+1) charge.

The number of protons in a Ni atom is 28 and charge of the protons in a Ni atom is (+28).

Hence, the location of proton is nucleus and the total charge of the protons in a Ni-64 atom is +28 charge.

blsea [12.9K]3 years ago
6 0
Location = nucleus , 
and you can see the total charge on the number that written below the substance, which would be 28+ 

hope this helps

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Answer:

The equation which will tell us how much of A that is mis inmthe water layer after partitioning is: 7 = (17 - x) g / 150 mL ÷ x g /100 mL

Explanation:

A partition coefficient is the ratio of the concentration of a substance in one solvent phase to the concentration in a second solvent phase when the two concentrations are at equilibrium. Usually the two phases are an organic phase and an aqueous phase. Thus, the partition coefficient K, of a compound is the ratio of the compound's concentration in the organic layer compared to the aqueous layer.

K = C₁/C₂ at equilibrium

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Solubility of A in dichloromethane, CH₂Cl₂ given in g/mL = (17 - x/150) g/mL

Since the partition coefficient, K of compound A when comparing its solubility in CH₂Cl₂ to water is 7, that is;

K = [solubility of A in g/ml in CH₂Cl₂] / [solubility of A in g/ml in H2O] = 7

The equation for the amount of A in the water layer is given as follows:

7 = (17 - x) g / 150 mL ÷ x g /100 mL

Solving for x

7 = (17 -x) × 100 / 150x

7 × 150x = (17 - x) × 100

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