# Joint Entrance Examination/AIEEE 2009/Q006 Barium Nitrate Solubility Product

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# Original Question by Dharav talk

Here's the question...
 Solid Ba(NO3)2 is gradually dissolved in a 1.0 × 10–4 M Na2CO3 solution. At what concentration of Ba2+ will a precipitate begin to form? (Ksp for BaCO3 = 5.1 × 10–9) (1) 5.1 × 10–5 M (2) 8.1 × 10–8 M (3) 8.1 × 10–7 M (4) 4.1 × 10–5 MPosted by Dharav talk 07:45, 20 August 2009 (UTC)

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