CHM110H5 Lecture 1: Unit 1 Notes
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235u with mass of 235. 044 and 238u with mass of 238. 051. Fe in fe3c solid/solid: o2 in h2o gas/liquid, o2 in n2 gas/gas. Find the atomic mass and the identity of an element. When 1. 44g of m2so4 were dissolved in water and treated with excess queous bacl2, all of the sulfate precipitated as baso4. Find the atomic mass and the identity of m. M2so4 + bacl2 baso4 + 2m+ + 2cl- 142 = (2) (the atomic mass of the metal) + 96 (mass of one sulfur and four oxygens) A 6. 49mg sample of ascorbic acid which is known to contain only c, h, and o was burned in a combustion apparatus. The increase weights of the absorption tubes showed that 9. 74mg of. What is the empirical formula of ascorbic acid. Cxhgoz + o2 xco2 + y/2 h20. A mixture of nacl and kcl with a mass of 4. 000g was dissolved in water and then reacted completely with excess agbo3.
