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o-na [289]
3 years ago
10

How many atoms of gold are in gold nugget with a mass of 4.25 g

Chemistry
2 answers:
Norma-Jean [14]3 years ago
7 0

Answer:

1.299 * 10^22

Explanation:

Feliz [49]3 years ago
3 0
Number of Atoms in Gold for given mass can be calculated using following formula,

              # of Moles  =  Number of Atoms / 6.022 × 10²³
Or,
             Number of Atoms  =  Moles × 6.022 × 10²³     ------- (1)    

Calculating Moles,
As,
                              Moles  =  Mass / M.mass
So,
                              Moles  =  4.25 g / 196.96 g/mol

                              Moles  =  0.0215

Putting value of mole in eq.1,

             Number of Atoms  =  0.0215 × 6.022 × 10²³

             Number of Atoms  =  1.299 × 10²²

Result:
            4.25 g 
of Gold Nugget contains 1.299 × 10²² Atoms.
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Answer:

50.4 % of the water will be vapor

Explanation:

<u>Step 1:</u> Data given

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<u>Step 2:</u> Calculate moles of H2O

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⇒ n = moles of water

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