How many molecules of hydrogen fluoride (HF) are in (2.1x10^-2) moles of hydrogen fluoride (HF)? For Avogadro's number use: 6.022 x 1023 Round your answer to two significant figures. For the unit, use the word molecule. Note: Your answer is assumed to be reduced to the highest power possible.

How many molecules of hydrogen fluoride (HF) are in (2.1x10^-2) moles of hydrogen fluoride (HF)? For Avogadro's number use: 6.022 x 1023 Round your answer to two significant figures. For the unit, use the word molecule. Note: Your answer is assumed to be reduced to the highest power possible.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 74QAP: Magnesium ribbon reacts with acid to produce hydro- gen gas and magnesium ions. Different masses of...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

How many molecules of hydrogen fluoride (HF) are in (2.1x10^-2) moles of hydrogen fluoride (HF)?

For Avogadro's number use: 6.022 x 10²³

Round your answer to two significant figures.

For the unit, use the word molecule.

Note: Your answer is assumed to be reduced to the highest power possible.

Definition Definition Number of atoms/molecules present in one mole of any substance. Avogadro's number is a constant. Its value is 6.02214076 × 10 23 per mole.

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