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Science

Chemistry

moles

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter3: Molecules, Moles, And Chemical Equations

Section: Chapter Questions

Problem 3.83PAE: 3.83 For the reaction of nitrogen, N2, and hydrogen, H2, to form ammonia, NH3, a student is...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

Use the molar mass of Ca₃(PO₃)₂ to calculate the moles in 10.0 g of calcium phosphite. Give your actual number. Use 3 significant figures, do not use scientific notation.

(10.0 g CP)(––––––––) = ________ mol CP

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