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3 years ago

1. Which compound is composed of the most atoms? A. H2SO4 B. Li2N C. Mg(OH)2 D. NaF

Chemistry

1 answer:

pav-90 [236]3 years ago

6 0

H₂SO₄ is composed of the most atoms

<h3>Further explanation</h3>

Given

Compounds of A. H2SO4 B. Li2N C. Mg(OH)2 D. NaF

Required

The most atoms

Solution

Compounds are composed of atoms of the same or different types

The number of atoms can be indicated from the subscript of each of the constituent atoms of the compound

A. H₂SO₄ : 2 atoms H, 1 atom S, 4 atoms O = 7 atoms

B. Li₂N : 2 atoms L, 1 atoms N = 3 atoms

C. Mg(OH)₂ : 1 atom Mg, 2 atoms O, 2 atoms H = 5 atoms

D. NaF : 1 atom Na, 1 atom F = 2 atoms

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Citrus2011 [14]

Answer:

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Explanation:

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In this case, for these particle-mole-mass relationships problems, it is necessary for us to recall the following equivalence statement, based off the molar mass of the involved compound, C3H8, one mole of particles and the Avogadro's number:

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In such a way, we can set up the following expression for the calculation of the mass in the given particles of propane:

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3 years ago

What is the difference between atomic mass, relative atomic mass and average atomic mass

vesna_86 [32]

$\bold{\huge{\underline{\purple{ Answer }}}}$

Difference between Atomic mass, relative atomic mass and average atomic mass :-

<h3>Atomic Mass :-</h3>

Atomic mass is the mass of neutrons and protons present in the nucleus of an atom .
It is always calculated for a single element and having direct value
For isotopes also, the atomic mass is calculated separately . Example :- Carbon 12 , carbon 13 and carbon 14 have different atomic mass. 
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<h3>Relative Atomic mass :-</h3>

Relative atomic mass is mean mass of the atoms of an element which is compared to the 1/12th mass of carbon - 12 .
Carbon - 12 is taken as a relative when we calculate the relative atomic mass of any element
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<h3>Average Atomic Mass :-</h3>

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While we calculate average atomic mass is a standardized number. Whereas, Average atomic mass sometimes varies geologically .
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2 years ago

If 185 mg of acetaminophen were obtained from a tablet containing 350 mg of acetamino- phen, what would be the weight percentage

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3 years ago

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k0ka [10]

Answer is (3) both mass number and atomic number.

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ryzh [129]

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