Chemistry, 21.02.2020 02:22 williamnason123
Determine the molarity of a solution prepared by dissolving 16 .0 g urea (NH 2) 2CO in 38.6 g of water if the density of the solution is 1.30 g/mL? A. 1.38 M B. 0.57 M C. 18.9 M D. 6.38 M E. 4.51 M F. 0.0421 M G. 9.21 M
Answers: 2
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Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
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Determine the molarity of a solution prepared by dissolving 16 .0 g urea (NH 2) 2CO in 38.6 g of wat...
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