1. What is the rate law for the following equation if it is first order with...
1.
What is the rate law for the following equation if it is first order with respect to A and first order with respect to B?
2 A + B → 4 C + D
| a. |
rate = k [A] |
|
| b. |
none of these |
|
| c. |
rate = k [A] [B] |
|
| d. |
rate = [C]4 [D] / [A]2 [B] |
2.
What is the general rate law for the balanced equation, 2 A + B → 4 C
| a. |
rate = [A]x [B]y/ [C]z |
|
| b. |
rate = k [A]2 [B] |
|
| c. |
rate = k [A]x [B]y |
|
| d. |
rate = [C]4 / [A]2 [B] |
3.
In a 1.5 M solution of sodium carbonate (Na2CO3), the concentration of the sodium ion is _____.
| a. |
6.0 M |
|
| b. |
3.0 M |
|
| c. |
1.5 M |
|
| d. |
4.5 M |
4.
In general, which state of energy has the highest entropy?
| a. |
liquid |
|
| b. |
solid |
|
| c. |
gas |
|
| d. |
the are equal |
5.
If 25.7 grams of NaCl (MW = 58.44 g/mol) is dissolved in 0.5 L of water, what is the molality of the solution?
| a. |
0.88 m |
|
| b. |
0.88 M |
|
| c. |
51.4 m |
|
| d. |
1.9 x 10-2 |
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