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Yakvenalex [24]
3 years ago
10

What is the mass, in grams, of a sample of 6.98 × 10^24 atoms of magnesium (Mg)?

Chemistry
1 answer:
Blizzard [7]3 years ago
4 0
The number of moles in a substance indicates the amount of the substance that contains the same number of particles as 12 g of the Carbon-12 isotope [or equivalent to 6.02 × 10²³ (which is used as a standard in the world of moles).

Now,

          if     6.02 × 10²³ atoms are found in 1 mole of Mg
   then let  6.98 × 10²⁴ atoms are found in     x

⇒     x  =    (6.98 × 10²⁴)  ÷  (6.02 × 10²³)
            =  11.595 mol

Also, 
    Mass = Mole  ×  Molar Mass

∴ Mass of Mg = 11.595 mol  ×  24 g / mol
                       = 278.27 g 
<span>
The mass of a sample of 6.98 × 10</span>²⁴ atoms of magnesium (Mg) would contains   278.27 g    
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Answer:

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Explanation:

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Name the following alkane:
vladimir1956 [14]

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Alkanes are further divided into three more types which are:

1. Chain alkanes

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3. Branched alkanes

Hydrogenation method is used for preparation of alkanes from alkene and alkyne.

The names of the given compounds are:

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2,2- dimethyl butane

Part B:

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Part C:

2,2,3,3- tetramethyl butane

Part D:

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Learn more about alkanes from the link given below.

brainly.com/question/16837399

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4 0
1 year ago
HELPPPPPP 30 POINTS Scientists are currently debating if a new epoch based on modern human activity should be added to the geolo
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2 years ago
What kind of chemical bonds are represented by the product in the following diagram?
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maksim [4K]

Answer:

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Other options are incorrect because,

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in this reaction one molecule of A₂ and one molecule of B₃ combine to form one molecule of C₅.

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in this reaction two molecules of A and five molecules of B combine to form three molecule of C.

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in this reaction one molecule of  A₂ and one molecule of B₃ combine to from one molecule of C₃.

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