Answer to Question #208526 in General Chemistry for cece manGo

Question

5). Solve the following problem, giving answers with the correct number of decimal places.

 

1.08 dm³ - 0.585 dm³

7). The pH scale is the most common logarithmic scale you will encounter on the course. The pH of a solution is defined as the negative logarithum₁₀ of the concentration of hydrogen ions:

 

pH = -log₁₀ [H⁺ (aq) ] 

 

The hydrogen ion concentration can be determined by taking the antilog of the negative pH value

 

[H⁺ (aq) ] = 10^-pH 

 

 What is the concentration of aqueous hydrogen ions in a solution of pH 6.7?

 

8).  The combined gas equation is given below;

                                

    

 Rearrange the equation making V₁ the subject of the equation.

 

Answer 1

5)0.495dm3

7)4.73M

8)$V_1=\frac {T_1×P_2×V_2}{P_1×T_2}$