January 2012 Chemistry Regents #70-71

Highlight to reveal answers and explanations

 

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50 Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-62 Questions 63-65 Questions 66-69  Questions 70-71  Questions 72-74 Questions 75-78  Questions 79-81  Questions 82-85

 

Question

Base your answers to questions 70 through 71 on the information below.

 

A scientist makes a solution that contains 44.0 grams of hydrogen chloride gas, HCl(g), in 200. grams of water, H2O(l), at 20.C. This process is represented by the balanced equation below.

70 Based on Reference Table G. identify, in terms of saturation, the type of solution made by the scientist. [1]

HIGHLIGHT TO SEE THE ANSWER

unsaturated

71 Explain, in terms of the distribution of particles, why the solution is a homogeneous mixture. [1]

HIGHLIGHT TO SEE THE ANSWER

The H+ ions and the Cl- ions are distributed uniformly throughout the solution .

or

There is an even distribution of H+(aq) and Cl-(aq).

 

on to Questions 72-74

  

Other Regents Exams

Questions 1-10 Questions 11-20 Questions 21-30 Questions 31-40 Questions 41-50 Questions 51-54 Questions 55-57 Questions 58-59 Questions 60-62 Questions 63-65 Questions 66-69  Questions 70-71  Questions 72-74 Questions 75-78  Questions 79-81  Questions 82-85

 
Back to Regents Exams