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kondor19780726 [428]
1 year ago
9

How many atoms are in 76.15 grams of fe urgently needed, will mark brainliest

Chemistry
1 answer:
Ira Lisetskai [31]1 year ago
3 0

Answer:

See below

Explanation:

From periodic table

mole weight of Fe   is   55.845  gm / mole

76.15 gm  /  55.845 gm/mol   *  6.022 x 10^23  atoms/mole =

             <u>   8.212 x 10^23   atoms    ( four signif. digits) </u>

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kari74 [83]

Answer:

<h2>The answer is 1.45 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of seawater = 250 g

volume = 173 mL

It's density is

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We have the final answer as

<h3>1.45 g/mL</h3>

Hope this helps you

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