1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Phantasy [73]
3 years ago
9

Calculate the molarity of the acid solution.H2SO4(aq) with a pH of 2.

Chemistry
1 answer:
Lena [83]3 years ago
3 0

Concentration "molarity" of H₂SO₄ in this solution:

5 × 10⁻³ mol / dm³.

<h3>Explanation</h3>

What's the concentration of H⁺ ions in this solution?

[\text{H}^{+}] = 10^{-\text{pH}},

where [\text{H}^{+}] is in the unit mol / dm³.

\text{pH} = 2

[\text{H}^{+}] = 10^{-2} \;\text{mol}\cdot\text{dm}^{-3}.

What's the concentration "molarity" of H₂SO₄ in this solution?

Sulfuric acid H₂SO₄ is a strong acid. Note the subscript "2". Each mole of this acid dissolves in water to produce two moles of H⁺ ions. It takes only \dfrac{10^{-2}}{2} = 5 \times 10^{-3}\;\text{mol}\cdot\text{dm}^{-3} of H₂SO₄ to produce twice as much H⁺ ions.

As a result, the <em>molarity</em> of H₂SO₄ is 5 × 10⁻³ mol / dm³ or 0.005 M.

You might be interested in
Short Answer/Essay
uranmaximum [27]

Global warming is warming to the earth people can stop littering to help it
3 0
3 years ago
Read 2 more answers
Would a thermos without a lid with water in it be an open or closed system? I'm so confused... also please explain your answer,
Dmitriy789 [7]

Answer:

. A closed system allows only energy transfer but no transfer of mass. Example: a cup of coffee with a lid on it, or a simple water bottle. ... In reality, a perfectly isolated system does not exist, for instance hot water in a thermos flask cannot remain hot forever.

8 0
3 years ago
40 points, will mark brainliest if you are correct within a day :)
mr_godi [17]

     Humans and Animals will be affected differently in many ways. The construction of roads has to access logging, oil, and mining sites in the forest.  These roads are funded by government and development agencies, some are financed by private companies or development interests.

     For humans, it is somewhat better because the food products come from rainforests as well, such as bananas, citrus, cassava, avocado, cashews, Brazil nuts, vanilla, sugar, coffee, tea, and cocoa. Medicine also comes from the rainforest, some of the ingredients for medicine come from the plants. So do materials such as rubber, oil, gum, resins, and paper. However, if we grew more farms and gardens we would be able to provide food from those gardens and farms, it will take more work, but it will be worth it. Using the products in the rainforest, it's a bad thing and a good thing. The food and materials help survive, yet it could kill the forest and places for animals to live in.

     There are many roads that are being built or upgraded, it's a good thing because it can be a lot safer for us, humans, to drive in. But again, they won't be able to fix all the roads, and adding roads in the rainforest would be a waste of time and just kill the animals and the forest itself. It can help the people in the forest much more, but as we see, the people also survive that way. Road construction in the forest can cause impede streams, increase forest flooding, and drastically increase soil erosion. If that happened fish can die out and other species.  And degraded lands are also often less able to hold onto water, which can worsen flooding.

     If we did keep the roads paved at all times, it can save money and energy and reduces greenhouse gas emissions, more than offsetting pollution generated during road construction, according to a new study. Many parts of the world are increasingly the result of political pressure from corporate interests, namely loggers, mining companies, oil and gas developers, and industrial agricultural firms, rather than government-backed poverty alleviation and development efforts.

       The deforestation of rainforests can be a big and devastating effect on our world. It can lead to many animals getting extinct, which is happening as of today. It also decreases the biodiversity that our planet enjoys. It can also lead to the degradation of soil and to erosion, as trees and plants usually hold the ground in place and provide necessary nutrients to it. It can also have a huge effect on our climate, and climate can destroy animals, like in the Arctic.

7 0
3 years ago
Read 2 more answers
Which of the following is an example of a compound? A. helium B. water C. hydrogen B. oxygen
liq [111]

the compound is B.

Water is a compound because it is made up of water molecules.

7 0
3 years ago
Read 2 more answers
→
marin [14]

Answer:

[A]²

Explanation:

Since the formation is independent of D, D is 0 order.

Since a quadruples when it is doubled it can be written as

2A^X= 4

To find the unknown power we can assume A= 1 to make the math simple. So When a = 2 (Because you doubled it) raised to X power it will equal 4

so the unknown power is 2

Making the rate law

[a]²[b]⁰

or simply just

[A]²

8 0
3 years ago
Other questions:
  • If I use 0.0395 kg of water to dissolve 0.0189 kg of salt, what is the mass percent of this solution?
    6·1 answer
  • The HNH bond angle in ammonia is ______. 100° 107° 109.5° 129°
    10·1 answer
  • An atom of helium has a radius of 31. pm and the average orbital speed of the electrons in it is about 4.4x 10 m/s Calculate the
    11·1 answer
  • Why is it easier to deprotonate alkynes compared to alkanes and alkenes?​
    14·1 answer
  • What is the IUPAC name of KNO3, Fe(OH)3, H2SO3 and Al2(SO4)3<br>​
    9·2 answers
  • A doctor is trying to diagnose a patient with dry skin. Which of the following resources would be the most helpfu
    10·1 answer
  • What is the chemical formula for hydrogen phosphate​
    9·1 answer
  • Determine the molecular formula for a compound that has a Mass of 392.2 grams and consists of 0.70g of chromium,0.65g of sulfur
    13·1 answer
  • What is the name of Na
    12·1 answer
  • Refer to the image please!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!