Exercise 1 1- The label on the bottle containing commercial sodium hydroxide (NaOH) solution (S.) shows the following information. M(N2OH) = 40g.mol'. d = 1.230 kg.r* percentage by mass =20%. 1.1 Determine the concentration (Co) of the commercial solution (So). 1.2 Solution (S,) is prepared by diluting commercial sodium hydroxide solution 50 times. Calculate the concentration of solution (S,). 1.3 Explain the procedure followed to prepare 1L of solution (S,) starting from the commercial solution (S,).

Exercise 1 1- The label on the bottle containing commercial sodium hydroxide (NaOH) solution (S.) shows the following information. M(N2OH) = 40g.mol'. d = 1.230 kg.r* percentage by mass =20%. 1.1 Determine the concentration (Co) of the commercial solution (So). 1.2 Solution (S,) is prepared by diluting commercial sodium hydroxide solution 50 times. Calculate the concentration of solution (S,). 1.3 Explain the procedure followed to prepare 1L of solution (S,) starting from the commercial solution (S,).

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Can you please help me solve this

Exercise 1
1- The label on the bottle containing commercial sodium hydroxide (NaOH) solution (So) shows the
following information. M(N2OH) = 40g.mol". d = 1.230 kg.I* percentage by mass =20%.
1.1 Determine the concentration (Co) of the commercial solution (So).
1.2 Solution (S,) is prepared by diluting commercial sodium hydroxide solution 50 times.
Calculate the concentration of solution (S;).
1.3 Explain the procedure followed to prepare 1l of solution (S,) starting from the commercial
solution (S,).
Exercise 2
2-A reacting system constituted of a volume (V,) = 600 ml of 0.1 mol/I sodium hydroxide solution and a
volume (V2) = 400 ml of 0.1 mol/l ferrus nitrate Fe(NO3)2. The chemical equation of the reaction is :
Fe" + 2HO
+ Fe(OH)2.
2.1 Determine the limiting reactant in the reacting system.
2.2 Determine the number of moles of Ferrus hydroxide produced and deduce its mass
Given the following molar masses in g/mol:
M(Fe) = 56, M(O) = 16, M(H) =1

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