PREPARING F/YOUR ACS EXAM IN GEN CHEM
PREPARING F/YOUR ACS EXAM IN GEN CHEM
18th Edition
ISBN: 9781732776401
Author: EUBANKS
Publisher: American Chemical Society
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Chapter ST, Problem 4PQ
Interpretation Introduction

Interpretation:

The percent by mass of oxygen in Ca(NO3)2 has to be determined.

Concept Introduction:

Mole is S.I. unit. The number of moles is calculated as ratio of mass of compound to molar mass of compound.

Molar mass is sum of total mass in grams of all atoms that make up mole of particular molecule that is mass of 1 mole of compound. The S.I unit is g/mol.

The expression to relate number of moles, mass and molar mass of compound is as follows:

  Number of moles=mass of the compoundmolar mass of the compound

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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY