You would use the formula:
n =
![\frac{m}{M}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bm%7D%7BM%7D%20)
Where m is the mass, and M is molar mass (the periodic table would be used for this)
In this case, we need to rearrange the formula to find m
m = nM
= 5.40 x 6.941
= 37.5g
Hope this helped! Ask me if there's any part of the working you don't understand :)
divide 5 hours 20 mins by 4,000
and ur answer is
320 mins/4000km
so
0.08
hope this helps
sorry if its wrong
<u>Answer:</u> The bronsted acids for the given reaction are ![H_3O^+\text{ and }H_2CO_3](https://tex.z-dn.net/?f=H_3O%5E%2B%5Ctext%7B%20and%20%7DH_2CO_3)
<u>Explanation:</u>
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses or donates protons and thus forming conjugate base.
- A base is defined as a substance which accepts protons and thus forming conjugate acid.
For the given chemical equation:
![H_2CO_3+H_2O\rightleftharpoons HCO_3^-+H_3O^+](https://tex.z-dn.net/?f=H_2CO_3%2BH_2O%5Crightleftharpoons%20HCO_3%5E-%2BH_3O%5E%2B)
For the forward reaction,
looses 1 proton to form
and thus acts as bronsted acid.
For the backward reaction,
looses 1 proton to form
and thus acts as bronsted acid
Hence, the bronsted acids for the given reaction are ![H_3O^+\text{ and }H_2CO_3](https://tex.z-dn.net/?f=H_3O%5E%2B%5Ctext%7B%20and%20%7DH_2CO_3)
Rainwater is fairly pure
however it can also pick up some particulate matter and electrolytes from the
air, although not much. It will be saturated with atmospheric CO2, so with a little
buffering capacity, it will be at a pH of about 5.5, which is also the pH of
carbonic acid, a weak acid. Hence rainwater is a weak acid.
Answer:
A.) A cinder cone vocano
Explanation:
Cinder cone volcanos give off more ash, rather then an explosion, hense the name "cinder cone".