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chemMid015 - Chem 1423 —Wtr 9th 2007 — Exam#2 £33 5...

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Unformatted text preview: Chem 1423 —Wtr. 9th, 2007 —- Exam #2 £33 5 10. (8) Calculate the mass of BaCrC)4 precipitated from a solution found by adding 300.00 ml of 0.150 M Ba(NO3)2 to 415.00 ml of 0.135 M NflaCl'O‘ solution. What is the concentration of ions remaining in solution? Ba(NO3)2(aq) + NaQCrOAaq) —) Baal-04(5) + 2 NaN03(aq) 11. (8) Calculate the diffusion rate of demorated methane through a set of ban-iers if fluorine will diffuse through the same barriers at a rate of 35.8 moleslsec. nwm‘r— .. .—. 12. (5 Bonus Points) Calcium carbonate, CaCO, will decompose upon heating to give off (301 gas and calcium oxide a solid. What is the formula the compound formed between the calcium ion and carbonate ion? Answer VERSION}! ' ...
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