GATE ES · 2021 · ES
Question 54: Principles of water chemistry
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Question 54
ESNAT2 marksNeeds review
Excess amount of solid calcium sulfate (CaSO₄) was added to a pure water sample (pH = 7) so that some solids remain undissolved at the equilibrium. The solubility product of CaSO₄ is 2×10⁻⁵ mol²/L². The molar concentration of SO₄²⁻ in this water sample at equilibrium will be ______ mol/L (rounded off to three decimal places).
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2021ES
GATE ES 2021 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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