# 8.Consider the compound 3C6H12O6. The simpest ratio of molecules to carbon atoms to hydrogen atom...

## Question:

8.Consider the compound 3C6H12O6. The simpest ratio of molecules to carbon atoms to hydrogen atom are:

a)3:6:6

b)1:6:12

c)1:2:6 20.

20. Reacting Aluminum metal with copper (II) sulfate results in 2Al+3CuSO4----> Al2(SO4)3+3Cu. If i have 0.45 moles of copper produced from this reaction the number of moles of aluminum needed starting reagent is

a)0.45 moles Al

b)0.3 moles Al

c)0.225 moles Al

## Mole Ratios

For a given compound, the chemical formula gives an indication of how many atoms of each of the elements are present in one molecule. The simplest ratio is obtained by simply dividing the appropriate ratios between the elements of interest by the smallest integer value.

A similar idea is used in investigating quantities of reactants used to form a given amount of product. The balanced equation of the reaction gives us information on the mole ratios between the reagents. This analysis is called 'stoichiometry', from the Greek 'stoikhein' for 'element' and 'metron' for 'measure'.

## Answer and Explanation: 1

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Question about Molecular Formula:

The compound has a molecular formula of {eq}C_6H_{12}O_6 {/eq}. There are 3 molecules of this compound. Each...

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Mass-to-Mass Stoichiometric Calculations

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Chapter 9 / Lesson 3
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Learn to define and explain what stoichiometry is. Learn how to convert mass to mass in stoichiometry. Discover stoichiometry mass to mass and mole to mass problems.