CHEM 1500 Study Guide - Quiz Guide: Barium Hydroxide, Molar Mass, Formula Unit

• School: York University
• Department: Chemistry
• Course: CHEM 1500
• Professor: Valeria Tsoukanova

Document Summary

Note: all final answers must be written in ink; pencil work will not be considered for re-marking. Cell phones must be turned off and out of reach. Fe(s) + h2o(l) (cid:1) fe2o3 (s) + h2(g) Nh4cl(aq) + ca(oh)2(aq) (cid:1) cacl2(aq) + nh3(g) + h2o(l) Nh3(g) + o2(g) (cid:1) no(g) + h2o(g ) Write their chemical formulas, names and indicate the oxidation state (os) for phosphorus below: compound 1: ____________, _____________________________ os for p ________ (formula) (name) compound 2: ____________, _____________________________ os for p ________ (formula) (name) Hydrates contain a certain number of water molecules in their formula unit. A solution is prepared by dissolving 4. 62 g of nicl2(cid:1)(cid:2)(cid:1)6h2o in enough water to produce 250. 0 ml solution. 2nahco3(s) (cid:1) na2co3(s) + h2o(g) + co2(g: which of the molecules below are isomers? (a) (b) (c) (d) Write chemical formulas for the compounds: (a) barium hydroxide ______________ (b) hydrosulfuric acid ______________ (c) iron(iii) nitrite ______________ (d) sodium dihydrogen phosphate octahydrate _________________________