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/sci/ - Science & Math

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[ERROR] No.3761915 [Reply] [Original]

If 4.61 * 10^21 atoms of element Z have a mass of 0.815 g, what is the identity of Z?
Do you really like science?

>> No.3761920

Yes I really like science.

But I don't like doing your chemistry homework.

>> No.3763572

(4.61* 10^21)* avagadro's number (6.022*10^23)*mass(0.815)Z
=
22.26*10^44Z

atomic number for Z = 22.26

It's an isotope for sodium. Now finish your homework.

>> No.3763590

>>3763572

That's wrong you nigger faggot.

4.61E21 atoms * (1mol/6.022E23) = .00765 mol

.815g/.00765mol = 106.46 g/mol = Palladium niggers

>> No.3763627
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[ERROR]

<span class="math">n=\frac{m}{M}[/spoiler]
<span class="math">M=\frac{m}{n}[/spoiler]
<span class="math">n=\frac{4.61x10^21}{6.022x10^23}[/spoiler]
<span class="math">m=0.815[/spoiler]
therefor
<span class="math">M=106.46[/spoiler]
>mfw i'm failing highschool chem and this is fucking easy

>> No.3763632
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[ERROR]

>>3763627
>>3763590


Don't pay attention to the trolls kid.

>>3763572 got it right the first time.