An acid has several definitions one would be that it is a proton donor and an electron donor. Also, it said to produce an H+ ion when in solution. For nitric acid in solution, it dissociates into ions which are NO- ions and H+ ions. So, it must be an acid. It has a dissociation reaction:

HNO3 = H+ + NO3-

7 0

3 years ago

The data below shows the change in concentration of dinitrogen pentoxide over time, at 330 K, according to the following process

tensa zangetsu [6.8K]

Answer: a) $1.7\times 10^{-4}$

b) $3.4\times 10^{-4}$

Explanation:

The reaction is :

$2N_2O_5(g)\rightarrow 4NO_2(g)+O_2(g)$

Rate = Rate of disappearance of $N_2O_5$ = Rate of appearance of $NO_2$

Rate = $-\frac{d[N_2O_5]}{2dt}$ = $\frac{d[NO_2]}{4dt}$

Rate of disappearance of $N_2O_5$ = $\frac{\text {change in concentration}}{time}$ = $\frac{0.100-0.066}{200-0}=1.7\times 10^{-4}$

a) Rate of disappearance of $N_2O_5$ = $-\frac{d[N_2O_5]}{2dt}$

Rate of appearance of $NO_2$ = $\frac{d[NO_2]}{4dt}$

b) Rate of appearance of $NO_2$ = $\frac{d[NO_2]}{dt}=2\times 1.7\times 10^{-4}}=3.4\times 10^{-4}$

8 0

3 years ago

What is the ozone hole and how does it affect humans?

denis-greek [22]

Answer:

Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders.

6 0

3 years ago

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