how many grams of CuSO4 • 5H2O do you need to make 0.8 L of a 0.6 M solution

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04-09-2021
Chemistry

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how many grams of CuSO4 • 5H2O do you need to make 0.8 L of a 0.6 M solution

Sagot :

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Аноним Аноним · Answer 1 · 2021-09-04T02:49:57-04:00

Understanding the concept:-

Here the concept of Molarity used .We will put the formula of Molarity then we find moles of copper sulphate .Then we can find the.Given weight of Copper sulphate.So let's do

Solution:-

Volume of Solvent=0.8L
Molarity=0.6M

We know

[tex]\boxed{\sf Molarity=\dfrac{Moles\:of\: solute}{Volume\:of\: Solvent \:in\;L}}[/tex]

[tex]\\ \rm\longmapsto Moles\:of\: solute=Molarity\times Volume\:of\: Solvent\:in\:L[/tex]

[tex]\\ \rm\longmapsto Moles\:of\: Solute=0.8(0.6)[/tex]

[tex]\\ \rm\longmapsto Moles\:of\: Solute=0.48mol[/tex]

Now

Molar Mass of Solute:-

[tex]\\ \rm\longmapsto CuSO_4.5H_2O[/tex]

[tex]\\ \rm\longmapsto 65u+32u+4(16u)+5(2\times 1u+16u)[/tex]

[tex]\\ \rm\longmapsto 96u+64u+5(2+16)[/tex]

[tex]\\ \rm\longmapsto 160u+90u[/tex]

[tex]\\ \rm\longmapsto 250u[/tex]

[tex]\\ \rm\longmapsto 250g/mol[/tex]

Now

[tex]\boxed{\sf No\:of\:moles=\dfrac{Given\:Mass}{Molar\:Mass}}[/tex]

[tex]\\ \rm\longmapsto Given\:Mass=No\:of\:Moles\times Molar\:Mass[/tex]

[tex]\\ \rm\longmapsto Given\:Mass=250(0.48)[/tex]

[tex]\\ \rm\longmapsto Given\:Mass=120g[/tex]

how many grams of CuSO4 • 5H2O do you need to make 0.8 L of a 0.6 M solution

Sagot :

Understanding the concept:-

Solution:-

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