Purchase Solution

Chemistry: Stoichiometric sample calculations

Not what you're looking for?

Ask Custom Question

Hydrofluoric acid,HF (aq) , cannot be stored in glass bottles because compounds called silicates in the glass are attacked by the HF (aq) . Sodium silicate (Na2SiO3), for example, reacts as follows:
Na2SiO3(s)+8HF(aq)>>H2SiF6(aq)+2NaF(aq)

- How many moles of HF are needed to react with 0.330 mol of Na2SiO3?

- How many grams of NaF form when 0.570 mol of HF reacts with excess Na2SiO3?

- How many grams of Na2SiO3 can react with 0.850g of HF?

Purchase this Solution

Solution Summary

The expert examines stoichometric sample calculations.

Solution Preview

Hello and thank you for posting your question to Brainmass!
The solution is attached below in two files. the files are identical in content, only differ in format. The first is in MS Word format, while the other is in Adobe pdf format. Therefore you can choose the format that is most suitable to you.

The complete balanced reaction is:
(1.1)

(a)
How many moles of HF are needed to react with 0.330 mol of Na2SiO3?
Answer:
We see ...

Purchase this Solution


Free BrainMass Quizzes
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.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

General Chemistry - Classification of Matter

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

Match Elements with their Symbols

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