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Lunna [17]
3 years ago
5

Compare the relative charge and mass of each of the subatomic particles? pleaseeee help me this is for a homework in my chemistr

y class :(
Chemistry
1 answer:
swat323 years ago
8 0
The subatomic particles are electrons, protons and neutrons (the two later are in the nucleus of the atom).

Charges: neutron has not charge (it is neutral). Electrons are negatively charged and proton are positively charged. The magnitud of the charges of electrons is equal to the magnitude of the charges of the protons. Then the atoms have the same number of protons than electrons are they are neutral.

Mass: Protons and neutrons have almost the same masses( about 1.67*10^ - 31 kg). Electrons have a mass much, much lower thatn protons. The ratio of the mass of a proton to the mass of an electron is about 1836.
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Occupational Safety and Health Administration has set the limit on the maximum percentage of carbon dioxide (CO2) in air a worke
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The minimum rate of fresh air in the room is 176 moles/min

Explanation:

High exposure of CO₂ has health effects as headaches, increased heart rate, elevated blood pressure, coma, asphyxia, convulsions, etc.

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As the rate of sublimation of CO₂ is 0,880, the minimum rate of fresh air in the room must be:

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<em></em>

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4 0
3 years ago
Calculate the volume in liters of a 0.00231M copper(II) fluoride solution that contains 175.g of copper(II) fluoride CuF2. Be su
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Answer:

Volume = 746 L

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The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{175\ g}{101.543\ g/mol}

Moles_{copper(II)\ fluoride}= 1.7234\ mol

Also,

Considering:

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

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Volume =\frac{Moles\ of\ solute}{Molarity}

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Volume =\frac{1.7234}{0.00231}\ L

<u>Volume = 746 L</u>

7 0
3 years ago
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