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Irina18 [472]
3 years ago
12

If you just want points just say so this can lead me to failing 10th if I don’t pass this quiz so if you don’t know just say so

I understand you want points I just don’t wanna fail Ocean acidification is a consequence that occurs when the equilibrium between CO2
CO
2
concentrations in the ocean and atmosphere starts shifting. What is the pH of pure water?

Question 8 options:

13, basic


7, neutral


4, acidic
Chemistry
1 answer:
aniked [119]3 years ago
6 0

Answer:

13,basic would be your answer!

Explanation:

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Consider 0.10 M solutions of acetic acid, ammonia, hydrochloric acid, and sodium hydroxide. Rank these solutions in order of inc
Zinaida [17]

Answer:

HCl < CH₃COOH < NH₃ < NaOH

Explanation:

Given compounds:

Acetic acid: CH₃COOH

Ammonia; NH₃

Hydrochloric acid: HCl

Sodium hydroxide: NaOH

All the solutions are of the same molarity which is 0.1M. We need to see how these compounds dissociate to form solutions in order to establish their pH value:

For Acetic acid;

            CH₃COOH + H₂O ⇄ H₃O⁺ + CH₃COO⁻

   Acetic acid is a weak acid and it ionizes slightly in solutions. It would have a pH close to 7

For Ammonia;

       NH₃ + H₂O ⇄ NH₄⁺ + OH⁻

   Ammonia is a weak base and it ionizes slightly in solutions. It sets up an equilibrium in the process. It's would be slightly above 7

For HCl:

               HCl + H₂O → H₃O⁺ + Cl⁻

HCl is a strong acid and ionizes completely in solutions. It has a very low pH

For NaOH:

          NaOH → Na⁺ + OH⁻

  NaOH ionizes also completely in solutions and it breaks down into sodium and hydroxide ions. It is a strong base and it would have a high PH value.

                 HCl < CH₃COOH < NH₃ < NaOH

This is the trend of increasing pH

8 0
3 years ago
If 11 grams of a gas occupies 5.6 liters at STP, what is its gram molecular mass?
Vera_Pavlovna [14]

Answer:

(1) 25.0cal/g (2) 540cal/g (3) 327 cal/g (4) 8,180 cal/g 82 If 11 grams of a gas occupies 5.6 liters at STP, what is its gram molecular mass? (1) 11 g/mol (2) 22 g/mol

6 0
3 years ago
A gas has a volume of 62.65 L at STP. At what temperature (in oC) would the volume of the gas be 78.31 L at a pressure of 612.0
masha68 [24]

Answer:

1.788 C DEGREES

Explanation:

STP is 1 atm at  273.15 K

P1V1/T1  = P2V2/T2

(1)(62.65) / (273.15) = (612/760)(78.31)/T2

T2 = 274.93 K     = 1.788 C

5 0
2 years ago
What is the Bronsted-Lowry definition of an acid?
Nastasia [14]

Answer:

A)A compound that donates protons

Explanation:

for B it is the defination of bases

3 0
3 years ago
What category is most of the elements part of
rjkz [21]

Answer:

transition metals

Explanation:

they're the elements in yellow in the picture

6 0
3 years ago
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