Question $16$

Not yet

answered

Marked out of $1\mathrm{.}00$

Question $17$

Not yet

answered

Marked out of $1\mathrm{.}00$

Question $18$

Not yet

answered

Marked out of $1\mathrm{.}00$

For the reaction: $3Br{O}^{-}(aq)Br{O}_3^{-}(aq)+2B{r}^{-}(aq)$

$[Br{O}^{-}{]}_{\text{i}\text{n}\text{i}\text{t}\text{i}\text{a}\text{l}}$ is $0\mathrm{.}95M\mathrm{.}70$ seconds later $Br{O}^{-}$is $0\mathrm{.}15M.$ What is the rate of change of $Br{O}^{-}$in $\frac{M}{s}?($The brackets, $[],$ indicate concentration, that is$,$ molarity $($M$)$ or moles$/$liter$.)$

Answer.

Under a different set of conditions, the initial concentration of $B{r}^{-}$is $0\mathrm{.}00M\mathrm{.}35$ seconds later it is $0\mathrm{.}24M.$ What is the rate of change of $B{r}^{-}$in $\frac{M}{s}?$

Answer:

Under a different set of conditions, the initial concentration of $Br{O}_3^{-}$is $0\mathrm{.}20M\mathrm{.}79$ seconds later it is $0\mathrm{.}84M.$ What is the rate of change of $Br{O}_3^{-}$in $\frac{M}{s}?$

Answer: