Multiple Choice
A chemical reaction that is first-order in X is observed to have a rate constant of 2.00 × 10-2 s-1.If the initial concentration of X is 1.0 M,what is the concentration of X after 196 s?
A) 0.20 M
B) 0.020 M
C) 50 M
D) 0.61 M
E) 0.98 M
Correct Answer:

Verified
Correct Answer:
Verified
Q85: For the hypothetical first-order reaction A →
Q86: At 500<sup>o</sup>C,cyclopropane (C<sub>3</sub>H<sub>6</sub>)reacts to form its isomer,propene
Q87: The reaction between selenous acid and the
Q88: For the elementary reaction A + B
Q89: For the first-order reaction<br>1/2 N<sub>2</sub>O<sub>4</sub>(g)→ NO<sub>2</sub>(g); ΔH
Q91: For the reaction A + B +
Q92: For the hypothetical reaction A + 2B
Q93: Nitrosyl chloride is produced from the reaction
Q94: The reaction between selenous acid and the
Q95: Which of the following statements is incorrect?<br>A)The