Suppose a 0.034 M aqueous solution of sulfuric acid (H2SO4) is prepared. Calculate the equilibrium molarity of SO4 You'll find information on the properties of sulfuric acid in the ALEKS Data resource. Round your answer to 2 significant digits.

Answers

Answer 1

Answer:

[SO4²⁻] = 0.015M

Explanation:

When H2SO4 is dissolved in water, HSO4- is produced in a direct reaction as follows:

H2SO4 → HSO4- + H+

As 1 mole of H2SO4 produce 1 mole of HSO4-, the molarity of HSO4- in this first reaction is 0.034M

Now, the HSO4- is in equilibrium with SO42- and H+ as follows:

HSO4⁻ ⇄ SO4²⁻ + H⁺

Where the equilibrium constant, K, is defined as:

K = 1.2x10⁻² = [SO4²⁻] [H⁺] / [HSO4⁻]

Where [] are the equilibrium concentrations of each species in the reaction.

The equilibrium concentrations are:

[SO4²⁻] = X

[H⁺] = X

[HSO4⁻] = 0.034M - X

Where X is reaction coordinate

Replacing:

1.2x10⁻² = [X] [X] / [0.034-X]

4.08x10⁻⁴ - 1.2x10⁻²X = X²

4.08x10⁻⁴ - 1.2x10⁻²X - X² = 0

Solving for X:

X = -0.027M. False solution, there are no negative concentrations.

X = 0.015M. Right solution.

That means the equilibrium molarity of SO4²⁻,

[SO4²⁻] = X

[SO4²⁻] = 0.015M


Related Questions

what is the name of the compound ZnO​

Answers

the compound is Zinc Oxide

Predict the decay process and write the nuclear equation of Cf- 255

Answers

Answer:

curium

243

,

252

/

99

Es,  

251

/

98

Cf,  

214

/

82

Pb

Explanation: Im not very good with this but here ya go!

What equipment is generally used to make lyophilized medications suitable for administering to the patient? a) Test tubes or sterile ampules O b) Petri dishes and sterile droppers c) Sterile syringes or graduated cylinders d) Measuring cups and clean, warm water

Answers

C is the correct answer

A chemical reaction produces formaldehyde, with a chemical formula of CH2O. Carbon is in Group 4A, oxygen is in Group 6A, and hydrogen is in Group 1A on the periodic table. In one to two sentences, describe the bonds in a molecule of formaldehyde in terms of valence electrons.(2 points)

Answers

This problem is providing a comparison on the atoms forming formaldehyde, CH₂O, in terms of the groups they are in, C in group 4A, O in group 6A and H in group 1A, and it is asking for a description about the bonds once they are bonded in a formal Lewis dot structure.

In such a way, the attached file shows the Lewis dot structure, in which we can find two bonds between the two hydrogen atoms and the carbon one, and also, a double bond between carbon and oxygen.

The aforementioned is explained by bearing to mind the concept of octet, which states that elements in groups 4A, 5A, 6A and 7A are able to complete 8 valence electrons after bonding.

Thus, since carbon is in group 4A we infer it needs 4 more electrons to complete the octet, and that is achieved due to the 4 bonds it is having with the two hydrogen atoms and double bond with the oxygen atom.

In addition, since oxygen is in group 6A, we infer it needs two more electrons to complete its octet, which is attained via the double bond it has with the carbon atom. For hydrogen, however, it can complete one bond at maximum, because it is in group 1A, which means it can complete two valence electrons after bonding.

Learn more:

https://brainly.com/question/10535983https://brainly.com/question/21089350

Answer:

Ok I seen the answers on here talk about over complicated lol

Explanation:

CH2O

1 carbon atom

2 hydrogen atoms

1 oxygen atom

then is born CH2O aka formaldehyde : )

Elements with ________ atomic mass are best possible candidates for a fusion reaction. very low moderate to heavy moderate very heavy

Answers

very low

Explanation:

Nuclear fusion is a nuclear reaction wherein small nuclei are combined to form heavier nuclei. This process constantly occurs in the sun, which is mainly composed of hydrogen and helium atoms.

calculate the mass of 1 molecule of water and 100 molecules of glucose

Answers

Answer:

The mass of 1 molecule of water is 18.02

The mass of 100 molecules of glucose is 18000

I hope this is correct, and helps you out :)

Aqueous sodium phosphate and aqueous iron (III) chloride react to produce aqueous sodium chloride and solid iron (III) phosphate.

Answers

Answer:

this one is hard

Explanation:

but it's iron because the sodium so yea there u go.

natural gas is methane. write the equation for complete combustion of methane.

Answers

Answer:

methane + oxygen → water + carbon dioxide CH4 + 2O2 → 2H2O + CO2

Explanation:

hope this helps

In one to two sentences, describe an experiment that would show that intramolecular forces (attractions between atoms within molecules) are stronger than intermolecular forces (attractions between molecules).

Answers

Answer:

intra moleculer force is the force which you can't see

Need Help ASAPPPP!!!!

Answers

Answer: For number 8. I think only one if not i'm so sorry also you would need 143. 0914

Explanation:

Answer:

Hello! :p

6.022 × 10^{23} atoms of copper. 143.09 g/mol

I hope this helps! Thank you so much! :)

Which best defines color? (1 point)
a physical property of matter related to how a material interacts with different wavelengths
of light
a chemical property of matter related to how a material interacts with different wavelengths
of light
O a physical property of matter related to a material's ability to reflect light
O a chemical property of matter related to a material's ability to reflect light

Answers

Answer:

i believe the answer to your quetion will be A im on edge by the way so if your on a differnt program than it might be wrong sorry if im wrong have a wonderfull day!

Giúp mình 2 câu này với ạ
1, Pha 500ml dung dịch HCl 10% (w/v) từ dung dịch 37% (w/w) d=1.19 g/ml
2, Cách pha như thế nào để nhận được 200g dung dịch HCl 25% (w/w) từ dung dịch HCL 37% (d=1.19 g/ml)

Answers

Answer:it is wrong answer

Explanation:estro man

Define the terms (a) sedimentation ( b )decantation​

Answers

Answer:

Sedimentation: Sedimentation is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.Decantation: Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture

hope u liked the answer :)

Is the formation of sulfur tetrafluoride monoxide endothermic or exothermic?

Answers

endothermic means it absorbs energy while exothermic means it releases energy. remember this.

How many grams are in 2.0 × 1024 atoms of C?

Answers

Answer:

2.24 i think.

Explanation:

An ammonia solution has a pH of 8.25. What is its [OH-]?

Answers

pH + pOH = 14

If pH=8.25, then:

pOH = 14 - 8.25 = 5.75

pOH = -log[OH-]

5.75 = -log[OH-]

-5.75 = log[OH-]

10^(-5.75) = [OH-]

[OH-] = 0,0000017783

[OH-] = 1,78×10^(-6) mol/dm³

Which statement is false?
a. The density of a gas is constant as long as its temperature remains
constant.
b. Gases can be expanded without limit.
c. Gases diffuse into each other and mix almost immediately when put into the
same container.
d. The molecular weight of a gaseous compound is a non-variable quantity.

Answers

The answer is A- false

A flexible vessel contains 78.00 L of gas at a pressure of 1.50 atm. Under conditions of constant temperature
and moles of gas, what is the pressure of the gas when the volume of the vessel is tripled?

Answers

The pressure of the gas when the volume of the vessel is tripled is 0.50 atm.

To find the volume of the gas, we use Boyle's law which states that for a given mass of gas at constant temperature, the pressure is inveresly proportional to its volume. This is stated mathematically as P ∝ 1/V.

So, PV = constant

P₁V₁ = P₂V₂ where P₁ = initial pressure of gas = 1.50 atm, P₂ = final pressure of gas, V₁ = initial volume of gas = 78.00 L and V₂ = final volume of gas = 3V₁ (since the volume of the gas is tripled)

So, making P₂ the subject of the formula, we have

P₂ = P₁V₁/V₂

Substituting the values of the variables into the equation, we have

P₂ = P₁V₁/V₂

P₂ = 1.50 atm × V₁/3V₁

P₂ = 1.50 atm/3

P₂ = 0.50 atm

So, the pressure of the gas when the volume of the vessel is tripled is 0.50 atm.

Learn more about Boyle's law here:

https://brainly.com/question/25736513

How many grams of CaSO4 form when
50.0 mL of 0.20 M Ca(NO3)2 react with
excess potassium sulfate solution?
Ca(NO3)2 + K2SO4 → CaSO4 + 2KNO3
-
?] g CaSO4

Answers

Answer:

1.36g CaSO4 (FIXED THIS)

Explanation:

.01 mol CaSO4 is the conversion factor between these values and now you just need to multiply it by the molar mass of .01 x 136.14=1.36g CaSO4

Apologies for having the wrong answer before this, it's been a long day.

I want a pharmacist technician to help me with a question please

Answers

I can help with your question

flowering plants are called​

Answers

Question:-

flowering plants are called?

Answer:-

Angiosperms

Explanation:-

Angiosperms are plants that bloom and bear fruit. The word angiosperm is derived from two Greek words, Angeion and Sperma . Angeion means "vessel" and sperma means "seed".

Please help! Urgent: take ur time and answer it correctly

Answers

Answer:

an electric field is a field around a charged particle or object within which a force ( electric force) would be exerted on other charged particles or objects.

Explanation:

particles with unlike charges attract one another while particles with like charges repel each other.

what's the (snowy sour) mixture?​

Answers

The Story Behind The Snowy Sour
As the air gets cooler and winter creeps in, I’m looking forward to the first snowfall of the season. This cocktail is all you will need to help you through. I took a classic sour cocktail and elevated it with a winter-citrus-infused simple syrup, made by combining clementine, orange, and honey with sugar and water. All the flavors came together really well, and the gin and fresh lemon juice amalgamate beautifully.

Ingredients In The Snowy Sour:

1.5 ounces gin
1 ounce lemon juice
¾ ounce winter citrus syrup
1 egg white
Snowy Sour Directions:

Combine all ingredients in a cocktail shaker with ice.
Shake hard to chill and combine.
Strain out ice.
Shake hard again to create a silky consistency.
Finely strain into your cocktail glass.
Garnish and enjoy!
Winter Citrus Simple Syrup Ingredients:
2 ounces clementine juice
2 ounces orange juice
2 ounces honey
2 ounces sugar
1 cup water
Winter Citrus Simple Syrup Directions:
Combine all ingredients into a small saucepan.
Bring to a boil.
Remove from heat element and stir while cooling.
Allow to sit for 30 minutes to an hour.

CH6COOH

Vinegar pickles

A plant uses the energy from sunlight to create oxygen and glucose from carbon dioxide and water which statement is true about the changes that have occurred

Answers

Answer:

The correct answer choice is A. A chemical change has occurred because new compounds have been produced.

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.Example: Melting of ice A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.Example: photosynthesis

Photosynthesis is the process used by plants, algae and certain bacteria to convert energy from sunlight and turn it into chemical energy in the form of glucose which is used a s a source of energy by many organisms.

Thus the true statement is a chemical change has occurred because new compounds have been produced.

Which of the following are used to administer liquid medications orally? O a) Syringes b) Vials c) Suppositories d) Droppers e) Teaspoons

Answers

Answer:

D

Explanation:

what substance changes directly solid to gas
3 examples​

Answers

Answer:

Air FreshenersSpecialized PrintersMoth Balls

                       

The process in which solids directly change to gases is known as sublimation. This occurs when solids absorb enough energy to completely overcome the forces of attraction between them. Dry ice is an example of solids that undergo sublimation.

A compound has the following percentage composition: 40.0% carbon, 6.72% hydrogen, 53.28% oxygen. What is the amount of carbon moles in 200g of the compound?

Answers

Answer:

So we're trying to find the number of carbon moles in the compound. We know that we have 200g of the compound and that 40% of it is Carbon. and 40% of 200 is 80g (change 40% into a decimal and multiply it by 200 and you get 80g)

So 80g of the compound is carbon. In order to find the moles of Carbon, I have to divide the mass by the molar mass of the element.

We know from our periodic table that the molar mass for carbon is 12g/mol

[tex]\frac{80}{12} = 6.67\ mol[/tex]

Therefore we have 6.67 moles of carbon in the compound

Answer:

6.67 moles of carbon in compound

50 PTS!!!!!
What type of chemical reaction is Aerobic Cellular Respiration?

Answers

Answer: During aerobic respiration, catabolic reactions convert larger complex organic molecules into ATP, the chemical that drives most physiological processes in the body.

Explanation:

What is the wavelength, in nanometers, of light with a frequency of 1.97x10^15 Hz?
a) 1.52 nm
b) 1.52x10^-7 nm
c) 152 nm
d) 15.2 nm

Answers

*v=c/λ
λ = 3*10^8 m/s /1.97 *10^15
λ = 1.5 *10^-7
The calculated wavelength is in unit of meter. use the relationship between meter and nanometer to convert to the correct units.

If you only wanted to increase the particle motion of a gas without increasing any of its other properties, which would the most correct situation?


a. Keep the gas at a constant pressure and keep the temperature constant, but increase the volume of the gas

b. Keep the gas in a fixed container at constant pressure and increase the temperature

c. Keep the gas in a fixed container at constant pressure and decrease the temperature

d. Keep the gas at a constant volume and keep the temperature constant, but decrease the pressure of the gas

Answers

Answer:

c

Explanation:

Other Questions
Science, Geology, Class 81. choose the correct answer ( CTCA )a. what makes the soil fertile?i. rock particles ii. humusiii. sand particlesiv. silt particles Natalie is 4 years old. When she buttons her shirt, she talks to herself and describes the steps. This helps her in self-regulating and guiding her behavior. In the context of cognitive and physical development in early childhood, this scenario illustrates the concept of Nyasia had 16 M&Ms on her desk. She had 2 groups of M&Mswith x amount in each, and another group with 4 M&Ms. Howmany M&Ms were in the identical groups? Jagadison Co. leases computer equipment to customers under sales-type leases. The equipment has no residual value at the end of the lease and the leases do not contain purchase options. Jagadison desires a return of 11% interest on a four-year lease of equipment with a fair value of $795,564. The present value of an annuity due of $1 at 11% for four years is 3.444. What is the total amount of interest revenue that Jagadison will earn over the life of the lease?a. 128436b. 198891c. 231000d. 350048 Landon Stevens is evaluating the expected performance of two common stocks, Furhman Labs, Inc., and Garten Testing, Inc. The risk-free rate is 4.4 percent, the expected return on the market is 10.6 percent, and the betas of the two stocks are 1.4 and 0.7, respectively. Stevenss own forecasts of the returns on the two stocks are 10.60 percent for Furhman Labs and 10.50 percent for Garten.Required:a. Calculate the required return for each stock.b. Is each stock undervalued, fairly valued, or overvalued? 5 (6 - x) - 3 = 5 + 4 (x + 3) When increasing production from 12,000 computers to 15,000 computers, the company's average cost of production will A. increase from $10.10 to $10.40 due to the learning-curve effect. B. increase from $16.80 to $18.90 due to the learning-curve effect. C. decrease from $10.40 to $10.10 due to diseconomies of scale. D. decrease from $10.40 to $10.10 due to the learning-curve effect. E. increase from $16.80 to $18.90 due to economies of scale. Explain the action of the diaphragm when you inhale and exhale. Hey guys if you could help ASAP thank you What is the slope, in its most simplified form, of the line that contains (1, 3) and (5, 9) convert 5.875baae 10 to base 2 If a $500 billion increase in investment spending increases income by $500 billion in the first round of the multiplier process and by $450 in the second round, income will eventually increase by:_________A. $2,500 billionB. $3000 billionC. $4,000 billionD. $5,000 billion In your opinion what is the most important section in the story the importance of being earnest? And why? Select all the words that are written correctly.JaponsFrancesoEspaoloJapnFrancsEspaol Please help me please please help ASAP help please fast!! geometry coordinates HELPPPPPPPP MEEEEE PLEASEEEE a 40 foot ladder is leaning against a building and forms a 29.32 angle with the ground. How far away from the building is the base of the latter? Round your answer to the nearest hundred A sample of 375 college students were asked whether they prefer chocolate or vanilla ice cream. 210 of those surveyed said that they prefer vanilla ice cream. Calculate the sample proportion of students who prefer vanilla ice cream. Like burnt out touches by a sick man's bed