A solution containing 55 grams of NH Cl in 100. grams of water is saturated at a temperature of DC=°C A) 77DC B) 67DC C)) 57DC D) 47DC 27) How many moles of H, SO are needed to prepare 5.0 liters of a 2.0 M solution of H, SO,? 2,0m A)10. m/OLS.0 D) 5.0 B) 20. C)2.5 H= 1,00744x2=Q.01588 963.9976=98.078488H2 S=32,065 xI A solution contains 14 grams of KCl in 100. grams of water at 40.DC. What is the minimum amount of KCl that must be 28) added to make this a saturated solution? A) 14 g B) 44 g 25 g D) 19 g Why is salt (NaCI) put on icy roads and sidewalks in the winter? It is ionic and lowers the freezing point of water. B) It is covalent and lowers the freezing point of water. C) It is covalent and rais es the freezing point of water. D) It is ionic and rais es the freezing point of water. H2O A solution ofKCl(aq) contains 15 grams ofsolute in 85 grams of water. What is the concentration of the solution in by mass? percent 30) 0.20% D) 2.0% B) 15% A) 6.0% K= 39.0983 15gkx 74. 5S3 Cl= 35. 453 74.5513gkcl =0.admo

A solution containing 55 grams of NH Cl in 100. grams of water is saturated at a temperature of DC=°C A) 77DC B) 67DC C)) 57DC D) 47DC 27) How many moles of H, SO are needed to prepare 5.0 liters of a 2.0 M solution of H, SO,? 2,0m A)10. m/OLS.0 D) 5.0 B) 20. C)2.5 H= 1,00744x2=Q.01588 963.9976=98.078488H2 S=32,065 xI A solution contains 14 grams of KCl in 100. grams of water at 40.DC. What is the minimum amount of KCl that must be 28) added to make this a saturated solution? A) 14 g B) 44 g 25 g D) 19 g Why is salt (NaCI) put on icy roads and sidewalks in the winter? It is ionic and lowers the freezing point of water. B) It is covalent and lowers the freezing point of water. C) It is covalent and rais es the freezing point of water. D) It is ionic and rais es the freezing point of water. H2O A solution ofKCl(aq) contains 15 grams ofsolute in 85 grams of water. What is the concentration of the solution in by mass? percent 30) 0.20% D) 2.0% B) 15% A) 6.0% K= 39.0983 15gkx 74. 5S3 Cl= 35. 453 74.5513gkcl =0.admo

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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