When an acid name ends in -ic acid, there is often a related acid whose name end

Question

When an acid name ends in -ic acid, there is often a related acid whose name ends in -ous acid. The formula of the -ous acid has one less oxygen atom than that of the -ic acid. With this information, write formulas for: (a) sulfurous acid and sulfuric acid (b) nitrous acid and nitric acid. What is the pH of a solution that has a hydrogen ion concentration of 1.0 * 10 ^-9 M? Show your calculation. Please answer the two questions below, after reading Chapter 8 in the textbook and reviewing the corresponding Powerpoint slides. Make sure that you give your answer in a clear and justified manner, providing necessary explanation on how did you come up with it. Please post your thread by Thur Jun 8th, 11:50 pm. Also, please reply to the posts of at least 3 peers by Sun Jun 11th. In order to reply, click on the peer's thread first, then click reply. The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). If you breathe 15 times a minute (at rest), taking in and exhaling 0.5 L of air with each breath, what volume of air do you breathe each day? Air is 21% oxygen by volume. What volume of oxygen do you breathe each day? As a rule, metallic elements act as reducing agents, not as oxidizing agents. Explain. Do nonmetals act only as oxidizing agents and not as reducing agents? Explain your answer.

Explanation / Answer

1)

a)

Sulfuric acid is an acid and its formula will be H2SO4

sulfurous acid will have 1 oxygen lesser than sulfuric acid. Its formula will be H2SO3

b)

Nitric acid is an acid and its formula will be HNO3

Nitrous acid will have 1 oxygen lesser than Nitric acid. Its formula will be HNO2

2)

Given,

[H+] = 1.0*10^-9 M

use:

pH = -log [H+]

= -log (1.0*10^-9)

= 9

Answer: 9

I am allowed to answer only 1 question at a time

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