Question

What Metal Oxide Has been formed? Final Lab Submission Purpose: (5 points) In 2-3 sentences concisely state the purpose of the laboratory and what knowledge this lab helped to further develop Experimental Data: (10 points) List all data that was collected from this experiment to help you determine the molecular formula of the metal oxide that you formed. Be sure that you clearly label what each value represents and includes the correct significant figures and units. Example: Mass of the dry crucible = 5.983 g Discussion: (21 points) 1. Based on what you know about the unknown metal sample propose a balanced chemical equation for (4 points) a. the formation of the Group 1 metal oxide b. the formation of the Group 2 metal oxide 2. Using the experimental data that you collected, determine the mass of the metal and oxygen in your final sample. (6 points) 3. Using the experimental data that you collected, show your complete calculations for the empirical formula of the metal oxide that you have formed. (You may complete these by hand. Be sure that all numbers are labeled with the correct units and your math is shown in a logical order down the page.) (8 points) The identity of the metal can be further determined by calculating the molar mass of the metal. Show your complete calculations. (You may complete these by hand. Be sure that all numbers are labeled with the correct units and your math is shown in a logical order down the page.) (3 points)

Answer 1

I. as Group & metal reacts to form metal 15 - peroxide up & metal reacts with oxide. oxygen gas Lithium forms monoxide & li + 02.9 -2420 159 sodium formo monoxide an well as 4 Naca) + O2 (g. 2 Ną o (s) 2Na(s) + O2(g) → Na₂O2 (8) Potassium Rubidium Cerium Kost og, KO2 (8) Robert Orego Rb + Ozon RbO2 (8) - cset Ozign > GO2 (8) superouide b) erroup 2 metal reacts with oxygen gas 2 M (6) + O₂ g. 2MO (8) where Ma quaup 2 metals Beryllium is reluctant to react with о"Хм one until it is in powdened ar dusty form 2 Be + O2 - 2 Be 0 181 2 mg + O2 → 2 mgo con 2 Со - о, — e 0 2 so + ₂ a 500 (8) 2 Ba + b 2 Bade + +