Sunday
April 20, 2014

Posts by Sulon


Total # Posts: 3

Chemistry
1. Ca(OH)2 + H3PO4 ---> H2O + Ca3(PO4)2 (A) How many moles of H3PO4 are needed to make 15g of H2O? (B) What mass in grams of Ca(OH)2 is used to react with 5.6mol of H3PO4? (C) How many grams of Ca3(PO4)2 are made from 134g of Ca(OH)2? 2. Fe2O3 + CO ---> Fe + CO2 (A) If 1...

Chemistry
1. The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrofluoric acid. F2(g) + NH3(g) „³ N2F4(g) + HF(g) a. If you have 66.5g NH3, how many grams of F2 are required for complete reaction? b. How many grams of NH3 are required to produce 4.6...

Chemistry
1. Ca(OH)2(aq) + H3PO4(aq) à Ca3(PO4)2(aq) + H2O(l) a. If you have 13.7mol of Ca(OH)2, how many grams of H2O are produced? b. How many grams of H3PO4 are required to produce 102.3g Ca3(PO4)2? c. How many moles of Ca(OH)2 are needed to produce 82.9g of Ca3(PO4)2? 2. Al2(...

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