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JEE Main 20211 SeptemberEvening Shift
Exam
JEE Main
Year
2021
Date
1 September
Shift
Evening Shift
Subject
Chemistry
Chapter
Solutions

JEE Main 2021 · 1 September · Evening Shift · Chemistry · Solutions

If 80g of copper sulphate CuSO _ 4 · 5 H _ 2 O is dissolved in...

If 80g80g of copper sulphate CuSO4⋅5H2O{CuSO}_{4} \cdot 5{H}_{2}O is dissolved in deionised water to make 5L5L of solution. The concentration of the copper sulphate solution is x×10−3molL−1.x \times {10}^{- 3}\text{mol}{L}^{- 1} . The value of xx is _____.

[Atomic massesCu:63.54u,S:32u,O:16u,H:1u][ \text{Atomic masses}Cu: 63 . 54u, S: 32u, O: 16u, H: 1u ]

Correct answer

0

Step-by-step solution

Mole ofCuSO4⋅5H2O=80249.5=0.32\text{Mole of}{CuSO}_{4} \cdot 5{H}_{2}O = \dfrac{80}{249 . 5} = 0 . 32

Concentration of the copper sulphate solution =molevolume(L)=0.325=0.064mol/L=64×10−3= \dfrac{\text{mole}}{\text{volume} ( L )} = \dfrac{0 . 32}{5} = 0 . 064mol / L = 64 \times {10}^{- 3}

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