How many moles of CuO can be produced from 0.450 mol of Cu2O in ...

[futuristic]

How many moles of CuO can be produced from 0.450 mol of Cu2O in the following reaction? 2 Cu2O(s) + O2(g)  4 CuO(s)
 
  A) 0.225 mol
  B) 0.450 mol
  C) 0.900 mol
  D) 1.80 mol

Question 2

What is the pOH of an aqueous solution at 25.0 C in which H+ is 0.0050 M?
 
  A) 8.70
  B) 11.70
  C) -11.70
  D) -8.70
  E) none of the above

Question 3

Using the table of average bond energies below, the H for the reaction is ________ kJ.
 
  CO (g) + 2H2 (g)  H3C-O-H (g)
   Bond: C-O C=O CO C-H H-H O-H
   D (kJ/mol): 358 799 1072 413 436 463
 
  A) +276
  B) -276
  C) +735
  D) -735
  E) -116

Question 4

The density of N2O at 1.53 atm and 45.2 C is ________ g/L.
 
  A) 18.2
  B) 1.76
  C) 0.388
  D) 9.99
  E) 2.58

[kaylee05]

Answer to Question 1

C

Answer to Question 2

B

Answer to Question 3

E

Answer to Question 4

E

[futuristic]

TY

[kaylee05]

You're welcome