Homework Help is Here – Start Your Trial Now!
Science
Chemistry
4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂0₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode c. 3.311gm on anode b. 6.603gm on anode d. 6.603gm on cathode

4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂0₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode c. 3.311gm on anode b. 6.603gm on anode d. 6.603gm on cathode

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question

solve very very fast in 15 min | I need a clear answer by hand, not by keyboard

 

4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 b. K₂CRO4 c. K3CrO3 d. K7Cr₂O₂ e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode c. 3.311gm on anode b. 6.603gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Transcribed Image Text:4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 b. K₂CRO4 c. K3CrO3 d. K7Cr₂O₂ e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode c. 3.311gm on anode b. 6.603gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermodynamics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS