Question
Asked Nov 10, 2019
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A pure sample of a compound that contains boron and hydrogen weighs 0.469 g. If the sample is found to contain 0.415 g of boron, what is the empirical formula of the compound?

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Expert Answer

Step 1
Tveinht boron+
O469
bordn.
We
Weight yeen
(o.469o4
O.054
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Tveinht boron+ O469 bordn. We Weight yeen (o.469o4 O.054

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Step 2
nunrmede ie cakuláted ac
Aen mass
molav mass
O41S
10.Bl1
mol"
0.0384 mo
= OO54
ma
00184
O.0536 Mol
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nunrmede ie cakuláted ac Aen mass molav mass O41S 10.Bl1 mol" 0.0384 mo = OO54 ma 00184 O.0536 Mol

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Step 3
Divide each mole by least number
mol
B aton
Numlbr
o.0384
O O38 4
Nunber
H alom
O.O536
4
O 03 84
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Divide each mole by least number mol B aton Numlbr o.0384 O O38 4 Nunber H alom O.O536 4 O 03 84

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