The rate constant for this first‑order reaction is 0.0350 s − 1 0.0350 s−1 at 400 ∘ C. 400 ∘C. A ⟶ products A⟶products After how many seconds will 18.1 % 18.1% of the reactant remain?The rate constant for this first-order reaction is 0.0200 s−1 at 300 °C. A⟶products If the initial mass of A is 16.76 g, calculate the mass of A remaining after 1.77 min.
