N 2 O 4 (g) 2NO 2 (g),the Keq expression is- What is the Keq for the reaction in question 61 if at equilibrium the
concentration of N 2 O 4 is 4 × 10−2 mole/liter and that of NO 2 is 2 × 10−2
mole/liter?
(A) 1 × 10−2
(B) 2 × 10−2
(C) 4 × 10−2
(D) 4 × 10−4
(E) 8 × 10−2
How much water, in liters, must be added to 0.50 liter of 6.0 M HCl to make
the solution 2.0 M?
(A) 0.33
(B) 0.50
(C) 1.0
(D) 1.5
(E) 2.0
4.0 grams of hydrogen are ignited with 4.0 grams of oxygen. How many
grams of water can be formed?
(A) 0.50
(B) 2.5
(C) 4.5
(D) 8.0
(E) 36
Which structure is an ester?