QUESTION 4 A 1.50-g sample of Na2SxOs contains 6.68 x 1021 sodium ions. Determine the value of x. Show all your calculations. QUESTION 5 The density of Brz(t) at 25°C is 3.120 x10³ kg/m³. How many molecules of Br2 are in 1890. μL of Brz(t) at 25°C. Show all your calculations.

QUESTION 4 A 1.50-g sample of Na2SxOs contains 6.68 x 1021 sodium ions. Determine the value of x. Show all your calculations. QUESTION 5 The density of Brz(t) at 25°C is 3.120 x10³ kg/m³. How many molecules of Br2 are in 1890. μL of Brz(t) at 25°C. Show all your calculations.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 151AE: A 0.755-g sample of hydrated copper(II) sulfate CuSo4xH2O was heated carefully until it had changed...

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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.

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