Question

Araceli Navarro Chem 211 Homework assignment #4 Due: November 11, 2019 1. Bi203 (s) is a basic oxide. Write a balanced chemical equation for its reaction with dilute nitric acid. If 6.77 g of Bi203 is dissolved in dilute acidic solution to make 0.500 L of solution, what is the molarity of the solution of the Bition? 2. Phosgene, a toxic compound, has the following elemental composition: 12.14% , 16.17% O, and 71.69% Cl by mass. Its molar mass is 98.9 g/mol. Determine the molecular formula of phosgene.

Answer 1

Bia 0 Reauien uith HN03 2 Bi (NO3)3 t3Hao ) Bia 03 t 6HNO 50ute moles Now MO 1 Volume e6oution in () 6 ११। Ciun mass Moles= 465.959 9mo1 moleulax Mass 6.17 0 0145 moles 465 959 001452 moles moles Bi203 0.500 h 5owion Valum 0 029 M mo

12 14y6 12 14 1a 14 0 C means 16.17 16 17 olo 0 means - L1-91 Means Mmoles (alutatien moles o C NO. 01 01 l2 D 100 Imoi 1 16 17 16 101 01 6 In 9 moies 1.O 69 202 202 2 CI 99 99 moles 355 101 moreutar oumal So 0 Coc 1 laubon 1= 2 Chlonine atoms )