Purchase Solution

Stoichiometry

Not what you're looking for?

Ask Custom Question

6) Explain why the reaction of 31.1636 g of aluminum metal (atomic mass 26.9815 g/mol) with 110.00 g of sodium iodate (molar mass 197.89 g/mol) in the presence of nitric acid produces the equivalence of only 25.00 g of aluminum ions; whereas,reaction with 120.00 g of sodium iodate produces the equivalence of 31.1636 g of aluminum ions.

7) You place 129.50 g of sodium hydroxide into exactly 1635 mL of water. With how many mL of 1.9801 M hydrochloric acid need to be added to react completely (i.e.,titrate) the sodium hydroxide? What will the final concentration of the sodium chloride be in the mixture?

Purchase this Solution

Solution Summary

Why an excess of sodium iodate will produce more aluminum ions than a smaller amount of sodium iodate is determined. The expert determines how to calculate the volume of HCl needed to neutralize a specific mass of NaOH.

Solution Preview

Please help me with the following stoichiometric problems
6) Explain why the reaction of 31.1636 g of aluminum metal (atomic mass 26.9815 g/mol) with 110.00 g of sodium iodate (molar mass 197.89 g/mol) in the presence of nitric acid produces the equivalence of only 25.00 g of aluminum ions; whereas,reaction with 120.00 g of sodium iodate produces the equivalence of 31.1636 g of aluminum ions.
The key here is looking at how much of the aluminum is converted. In the first reaction, 31.1636 g of Al are converted to 25.00 g of ...

Purchase this Solution


Free BrainMass Quizzes
Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.