Question

1.12 dm3

of nitrogen gas and 3.36 dm3

of H2 gas can combine to make 2.24 dm3

of NH3. Write a
balanced chemical equation with simple whole numbers by calculating the number of moles from
volumes for the given reaction.

Answer 1

Answer:

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Explanation:

Conc.(mol dm-3) = moles (mol) Volume (dm3) Conc.(g dm-3) = mass (g) Volume (dm3) Page 2 Calculations in Chemistry MOLES A measure of the amount of substance. Number of = mass (m) moles (n) Molar mass (Mr) Mass is measured in grams. Molar mass is calculated by adding the atomic masses (from the Periodic Table) together.

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