? Secure! https:/ roblemiD-95613774&offset-next; Chapter 7, Assignment 1 Problem

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? Secure! https:/ roblemiD-95613774&offset-next; Chapter 7, Assignment 1 Problem 7.4 - Enhanced-with Feedback for this part Constants I Periodic Table The following equation shows the conversion of aluminum axide Part D from the ore bausile) to aluminum 2A40, (s) ? 4Al(s) + 3?, (g), ??-+801 kcal (+3350 kJ How many kilocalories are required to produce 14.7 g of aluminum? You may want to reference (Pages 187-192) Section 7.3 while complesng this problem kcal - Part E How many kilojoules are required to produce 14.7 g of aluminum? kJ RequestAnswer Provide Feedback 12 FI F2 F3 FS F6

Explanation / Answer

part D)

2 Al2O3 (s)   --------------> 4 Al (s) + 3 O2 (g)

                                          107.93 g

107.93 g Al   ----------------> 801 kcal

14.7 g Al   --------------->        ??

heat required = 14.7 x 801 / 107.93

heat required = 109 kcal

part E)

heat required = 109 kcal

heat required = 456 kJ

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