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14. The man spoctrometer tace for agoesim shows peaks at mass pointa 24, 25 and 26 in tio 1:l respectively. The relative atomie mas for magnesium is A) 242 B) 24.4 C) 243 D) 24 15. Calculate the value of the equilibriuun contant Ka of a weak acid whose 0.IM solution has a plH of 5.3 A)25 x 10 B) 5x 10 C)2.5x 10 D) 25x 10

14. The man spoctrometer tace for agoesim shows peaks at mass pointa 24, 25 and 26 in tio 1:l respectively. The relative atomie mas for magnesium is A) 242 B) 24.4 C) 243 D) 24 15. Calculate the value of the equilibriuun contant Ka of a weak acid whose 0.IM solution has a plH of 5.3 A)25 x 10 B) 5x 10 C)2.5x 10 D) 25x 10

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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14. The mas spoctrometer tace for magoesium shows peaks at mas pointa 24, 25 and 26 in tio 1:l respectively. The relative atomic mass for magnesium is A) 24.2 B) 24.4 C) 243 D) 24 15. Calculate the value of the equilibriun contant Ka of a weak acid whose 0.IM solution has a plt of53 A) 2.5 x 10 B) 5x 10 C) 2.5x 10 D) 25x 10 16. When chlorine is bubbled through a hot alkali, the main products obtainod are A) Cloe B) CIÓ and H,0 C) Cr and CIO,and H0 D) Cr CIO and H0 and H,O 17. The enthalpy of neutralization of a strong acid and a strong base is -57.3KJmol". Seloct an oquation which illustrates this A) KOH + HCI B) KOH +CH,COOH C) 2KOH + H,SO, D) NaOH + HF KClr H,O CH,COOK +H0 K,S0, +21,0 NaF +H,0
Transcribed Image Text:14. The mas spoctrometer tace for magoesium shows peaks at mas pointa 24, 25 and 26 in tio 1:l respectively. The relative atomic mass for magnesium is A) 24.2 B) 24.4 C) 243 D) 24 15. Calculate the value of the equilibriun contant Ka of a weak acid whose 0.IM solution has a plt of53 A) 2.5 x 10 B) 5x 10 C) 2.5x 10 D) 25x 10 16. When chlorine is bubbled through a hot alkali, the main products obtainod are A) Cloe B) CIÓ and H,0 C) Cr and CIO,and H0 D) Cr CIO and H0 and H,O 17. The enthalpy of neutralization of a strong acid and a strong base is -57.3KJmol". Seloct an oquation which illustrates this A) KOH + HCI B) KOH +CH,COOH C) 2KOH + H,SO, D) NaOH + HF KClr H,O CH,COOK +H0 K,S0, +21,0 NaF +H,0
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