Chemistry High School

i. Write the dissolution reaction of BaF2, including all states. (0.5 points)
BaF2←>Ba2+(aq)+2F-(aq)

ii. Write the expression for Ksp for BaF2. (0.5 points)

iii. Write the Ksp expression as an algebraic equation, using the variable x to represent concentrations. (1 point)

iv. Find the solubility of BaF2 by solving the equation you wrote in part iii. (0.5 points)

Answers

Answer 1

Answer:

See Explanation

Explanation:

i) The equation of the dissolution of BF2 is;

BaF2(s)⇄Ba2+(aq)+2F-(aq)

ii) Ksp =[Ba2+] [2F-]^2

iii) Let the concentration/solubility of [Ba2+] and [2F-] be x

Ksp = [x] [2x]^2

Ksp = 4x^3

iv) x =∛Ksp/4

Related Questions

HELP ASAP !!! PLS ITS DUE IN LIKE 4 MINUTES

Answers

Answer:

they have the same structures in common

show the path to the formation of sodium calcium and aluminum bases please help me

Answers

Answer:

i hope this helps :)

Explanation:

please mark brainlest

Answer:

dunno

Step-by-step explanations:

How many grams are in 2.4mol sulfur, S?

A.)77g

B.)6.2x10^2g

C.) 0.075g

Answers

The answer is A.

A mole is Avagadro’s number of atoms of a substance. My periodic table of the elements gives the Gram Atomic Mass of natural sulphur is 32.066 grams/mole. Therefore, 2.4 moles would have a mass of 76.96 gm

Answer:

77.0 grams S

The atmosphere is the air surrounding Earth and is made up of 78% _____, 21% oxygen, and other trace gases. Please help this is urgent!!

Answers

The Earth is made up of 78% of water!!

Question 15 (3 points)
How are cations and anions related to metals and nonmetals?

Answers

Answer:

uff mere dil ma ture kali chadiya ha uff tumi apne buni ha

Answer:

Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge.

What is the molar mass of Mn2Se7 ?

A.) 601.34 g/mol

B.) 542.50 g/mol

C.) 662.60 g/mol

Answers

Answer:

C. 662.60

Explanation:

the mass of Mn is about 54 grams/mol, (multiply that by 2 since there are 2 Mn's).

the mass of Se is about 79 grams/mol, so multiply that by 7

if you add them, you get 662.60 (approxamitly)

Answer:

C) 662.60

Explanation:

~~55*2 + 79*7 = 110 + 553 = 663 (~~662.60)

Please help :)
It’s a science thing for 7th grade

Answers

Answer: The first question is chemical The second one is Physical

Explanation:

You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2?

Answers

Answer:

79.14%

Explanation:

Given the equation : 2Fe2O3 + 3C 4Fe + 3C02

The theoretical yield of CO2 ; is 102.6g

Actual yield = 81.2 gram

Percentage yield = (actual yield / theoretical yield) * 100%

Percentage yield = (81.2 / 102.6) * 100%

Percentage yield = 0.7914230 * 100%

Percentage yield = 79.14%

Hence, tbe percentage yield of CO2 is 79.14%

You are decomposing 2.00 mol of baking soda according to the following equation:
2 NaHCO3 -> Na2CO3 + CO2 + H2O
If you only collected 0.750 mol of Na2CO3 after the reaction finished, what was the
percent yield?
75.0%
62.5%
37.5%
25.0%
Question 6 (1 point)
✓ Saved

Answers

I’m not sure but I’m thinking 75.0% btw if you want an exact answer you need to offer more than 5 points

HELP ME ASAP PLZZ 21 POINTS

Answers

Answer:

A, D, F

Explanation:

Cold currents usually go along with Earth's rotation while the warm waters are subjected to the coriolis effect and go in a direction against Earth's rotation.

A greenhouse is filled with air that cotains more carbon dixoide than normal air has. How might phothsyphness and plant growth be affeacted

Answers

Answer:

See explanation

Explanation:

We know that photosynthesis involves the combination of carbon dioxide and water in the presence of sunlight to yield glucose.

If the atmosphere is rich in carbon dioxide such as in a green house where air is filled with carbon dioxide, the rate of photosynthesis is increased.

As the rate of photosynthesis is increased, the growth of plants is also increased.

Hence, in a greenhouse where the air contains more carbon dioxide, the rate of plant growth increases.

Which of these is a benefit of fuel cell cars?

A. Fuel cell cars reduce the use of fossil fuels.
B. Hydrogen fuel is volatile.
C. Fuel cell cars are quickly recharged.
D. Hydrogen fuel is a limited resource.

Answers

Answer:

Explanation:

There are no vehicle emissions other than water vapor. This means no pertroleum products and no fossil fuels. :)

-Sienna Sushi

hey y'all i just want to know, do whales and dogs have a common ancestor?

Answers

yes

Explanation:

Which suggests that in an earlier time whales and dogs could have evolved from the same organism. the common ancestor in the 2 animals share notible traits. the pakicets was one of the whales ancestors and the grey wolf was the dogs ancestor.

what is the advantage of rusting

Answers

Answer:

Provide more strength

Explanation:

Rust is metal that has been oxidised . Oxides are usually more fragile and porous than their crystals metal equivalents. Some oxides, such as Aluminum oxide, are useful because they have a thin, strong shell that protects the metal from further corrosion.

What volume is occupied by 2.33 miles of an ideal gas at 0.953 atm and 44°C

Answers

Answer:

6663.6

Explanation:

True or false: The phenolphthalein indicator changes colour close to the point of neutralization which shows the end-point of the titration.

Answers

Answer:

True

Explanation:

A titration can be defined as the experiment where the volume of known con concentration is mixed into another solution whose concentration is not known.

Most of the titration are acid-base titration. When performing titration the indicator which is used is usually phenolphthalein. The end point of the titration is the point where the indicator changes its color.

In case of acid base reaction, the end point is achieved when the phenolpthalein turns faint pink in color from transparent.

Hence, the given statement is correct, the indicator changes its color close to the end point of titration.

A 2.50 L sample of butane gas (C4H10), measured at 22.0
oC and 1.20 atm pressure, is combusted completely and
the carbon dioxide gas collected at the same pressure and
temperature. What volume of CO2 is produced?

Answers

Answer:

Same i guess hdjekfhkshfjfkr

The resultant volume of the carbon dioxide gas which is produced by the combustion of butane is 14.4L.

How do we calculate the moles of gas?

Moles of any gas will be calculated by using the ideal gas equation as:

PV = nRT, where according to qustion for butane gas

P = pressure = 1.20 atm

V = volume = 2.50L

n = moles = ?

R = universal gas constant = 0.082 L.atm / K.mol

T = temperature = 22 degree celsius = 295.15 K

On putting values we get

n = (1.20)(2.50) / (0.082)(295.15) = 0.124 moles

Given chemical equation is:

C₄H₁₀ + 13/2O₂ → 4CO₂ + 5H₂O

From the stoichiometry of the reaction, it is clear that,

1 mole of C₄H₁₀ = produces 4 moles of CO₂

0.124 mole of C₄H₁₀ = produces 4×0.124=0.496 moles of CO₂

Now we calculate the volume for the carbon dioxide gas at the given pressure and temperature as:

V = (0.496)(0.082)(295.15) / (1.20) = 14.4 L

Hence required volume of CO₂ is 14.4 L.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/24236411

#SPJ2

Calculate the percentage composition of sugar, C12H22011.

Answers

Answer:

%C= 42.1

%H=6.5

%O=51.4

Explanation:

Mass%=(mass/total)× 100%

The amount of solar radiation changes due to the
WILL MARK BRAINLIEST!!

Answers

Due to the variations in the sun-earth distance.

Hope it helps *-*

Molarity is measured in
A.) moles per mL

B.)moles per kJ

C.)moles per kg

D.)moles per L

Answers

answer D moles per L

Eight ounces (1 fl. Oz = 29.57 ml) of orange juice contains 160% of the recommended daily allowance of vitamin c (rda = 75-90 mg for adults). How many milliliters of the orange juice will provide 100% of the recommended daily allowance?

Answers

33 is the answer it’s 33

The chemical formula for gold (III) oxide
ionic compounds

Answers

Answer:

Gold(III) oxide (Au2O3) is an inorganic compound of gold and oxygen with the formula Au2O3. It is a red-brown solid that decomposes at 160 °C. (Au203 <---)

HELP MEEE PLEASEEEEEEEEEEEEEE

Answers

I think its the sea cucumber and sea urchin

but it could be the star too

Venus Fly trap is a great example of which type of tropism?
a
Thigmotropism
b
Gravitropism
c
Phototropism
d
Hydrotropism

Answers

It’s A: Thigmotropism

What volume of 7.68 M NaOH (aq) will neutralize 1.15 L of 2.35 M H2SO4 (aq) ?

A)1.38 L

B)0.704 L

C)0.276 L

D)1.90 L

E)1.75 L

Answers

i think the answer would be C

How many liters are in 2.88 moles of CH4? Round your answer to the hundredths place (2 decimal place)
HELPPO ME PLZ

Answers

64.50 because theirs 22.4L in one mole if u multiply that by 2 u get 64.51 u round that and get 64.50

Drag the tiles to the correct boxes to complete the pairs.
Nelly goes shopping on a weekday. She picks up protein powder so she can make a protein shake. She buys a double cheeseburger on her way home. She eats part of it, and then stores the rest of it in a paper bag so she can eat it later. Later in the day, she puts together several small packages of candies as gifts for her nieces and nephews. She labels each package and sends it through the mail.

Match each item or action with the organelle it could represent.

Answers

Paper bag vacole
Packaging candles

Protein shake -------------> Ribosome

Paper bag -------------> Vacuole

Packing candles -------------> Golgi Apparatus

im not 100% sure if paper bag and packing candles is correct.

What does oxygen hitch a ride on to move from the lungs to the blood and eventually the heart? Your answer

Answers

The oxygen enters blood in the tiny capillaries, hitching a ride on red blood cells and traveling through layers of blood vessels to the heart.

Choose the correct name for each acid. Click here
to access the common polyatomic ion sheet.
HNO2:
DONE
HI:
DONE
H3PO4 :
DONE

Answers

The correct name of HNO₂, HI and of H₃PO₄ is nitrous acid, hydroiodic acid and phosphoric acid respectively.

What are acids?

Acids are those substances in which carboxylic acid (-COOH) is present and pH value of acids falls in the range of 0 to 6.9.

Name of the HNO₂ compound is nitrous acid, of HI is hydroiodic acid and of H₃PO₄ is phosphoric acid.

Hence name of the HNO₂, HI and of H₃PO₄ is nitrous acid, hydroiodic acid and phosphoric acid respectively.

To know more about acids, visit the below link:

https://brainly.com/question/24375075

#SPJ2

Answer: HNO2 nitrours acid

HI Hydroiodic acid

H3PO4 phosphoric acid

Explanation: edu

the internal energy of a substance Is called

Answers

Answer:

The internal energy is the total amount of kinetic energy and potential energy of all the particles in the system. ... When the substance melts or boils, energy is put in to breaking the bonds that are holding particles together, which increases the potential energy.

Explanation:

Other Questions

Match each term with its definition. a. accelerated depreciation method b. amortization c. book value d. boot e. capital expenditures f. capital leases g. copyright h. declining-balance method i. depletion j. depreciation k. fixed assets l. goodwill 1. Long-term or relatively permanent tangible assets that are used in the normal business operations. 2. The systematic periodic transfer of the cost of a fixed asset to an expense account during its expected useful life. 3. The estimated value of a fixed asset at the end of its useful life. 4. A method of depreciation that provides tor equal peri0dic depreciation expense over the estimated life of a fixed asset. 5. A method of depreciation that provides tor depreciation expense based on the expected productive capacity Of a fixed asset. 6. A method of depreciation that provides periodic depreciation expense based on the declining book value of a fixed asset over its estimated life. 7. The cost of a fixed asset minus accumulated depreciation on the asset. 8. A depreciation method that provides for a higher depreciation amount in the first year of the assets use, t0110wed by a gradually declining amount of depreciation. 9. The costs of acquiring fixed assets, adding to a fixed asset, improving a fixed asset, or extending a fixed assets useful lite. 10. Costs that benefit only the current period or costs incurred for normal maintenance and repairs A political scientist asked a group of people how they felt about two political policy statements. Each person was to respond A (agree), N (neutral), or D (disagree) to each policy statement. a. Describe the sample space; that is, list all possible response combinations to the two statements. __________________________________________ b. Assuming each response combination in part (a) is equally likely, what is the probability the person being interviewed agrees with at least one of the two policy statements The golden age of radio happened between the 1930s and the1960s.1970s1950s.1940s. Compare and contrast stomata with the pores found in liverworts. Compare and contrast stomata with the pores found in liverworts. Stomata doesn't allow CO2 to diffuse and cannot be closed if conditions become dry. Liverwort pores allow gas exchange and cannot be closed either if conditions become dry. Stomata allow CO2 to diffuse and can close to minimize water loss. Liverwort pores doesn,t allow gas exchange and cannot be closed if conditions become dry. Stomata allow CO2 to diffuse and can close to minimize water loss. Liverwort pores allow gas exchange and cannot be closed if conditions become dry. Stomata allow CO2 to diffuse and cannot be closed if conditions become dry. Liverwort pores allow gas exchange and can close to minimize water loss. A. 71B. 88.5C. 90.5D. 92 I NEED THIS RIGHT NOWWhich of the following is NOT true about message sensitivity options?Recipients of messages do not have to respect your requests for privacy.Messages can be marked private.Not all email services provide options for email sensitivity.Messages marked as private or confidential cannot be shared with others.(It's not c) How might socialism lead to World War I? how did the tropical cyclone impact nivar the people/ communities Early settlers in the town of Dry Gulch drilled wells to pump as much water as they wanted from the single aquifer beneath the town. (An aquifer is an underground body of water.) As more people settled in Dry Gulch, the aquifer level fell and new wells had to be drilled deeper at higher cost. Compared to a town in which all residents collectively decide on how much water to use, water use will likely be ______ in Dry Gulch. Select one: a. higher b. the same c. lower d. the same or lower Need help with the answer please and thank you how many square metre of carpeting are needed to cover a floor that measures 8m by 5m Find the value of x so that the ratios 8: x and 12: 18 are equivalent. These marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two yellow marbles if the first one is placed back in the bag befroe the second draw 2 yellow marbles,3 pink marbles, 5 blue marbles The following information pertains to Newman Company. Assume that all balance sheet amounts represent both average and ending balance figures and that all sales were on credit. Assets Cash and short-term investments $40,000 Accounts receivable (net) 30,000 Inventory 25,000 Property, plant and equipment 215,000 Total Assets $310,000 Liabilities and Stockholders' Equity Current liabilities $60,000 Long-term liabilities 95,000 Common stock 80,000 Retained earnings 75,000 Total liabilities and stockholders' equity $310,000 Income Statement Sales $90,000 Cost of goods sold 45,000 Gross margin $45,000 Operating expenses 20,000 Net income $25,000 Number of shares of common stock 6,000 Market price of common stock $40 Dividends per share $1.00 Cash provided by operations $40,000What is the rate earned on total assets for this company?a. 8.1%b. 6.8%c. 10.5%d. 16.1% Will give brainlest, find the area WHO IS THE BEST CHARACTER FROM DREAM SMP!!! What is the area of a rectangle with a length of 7 feet and a width of 3 feet? 13 Points! Please help ASAP^^Please match the word to the correct definition.Question 1 options:is a person that is accused of committing a crime or a person against whom some type of civil relief is being sought in a civil case.legal reasons, stated in court session, in written and/ or verbal form, based on statutes, regulations, case precedents, and reasoning applied to the facts of the particular situation.means to be in accordance with the rules, laws, and rights presented in a governing document called a constitutionthe official power (of a court) to be able to hear cases and make legal decisions and judgementsThe highest ranking or senior member of the court, they preside over the court in its public sessions when the court is hearing arguments of a case and during its private conferences when discussing and deciding cases.the person who is accusing another person, or a group of some wrongdoing and is bring the suit to court.the highest judicial court in a state or a country. Is the highest court in the UScomes from the Latin word for city, because in earlier history people identified themselves as belong to cities. It is a legal status that gives you a right to live, work, pay taxes, and voteanything that a person (or a business) has legal title over. They can be tangible or intangible and ownership give the owner enforceable rightsmeans to be in violation of one or more of the rules, laws, and/ or rights presented in a governing document called a constitutiona conclusion reached after an evaluation of the facts and the precedent, and law. It is also called a ruling, an opinion, or a judgement.1. Property2. Citizenship3. Supreme Court4. Jurisdiction5. Plaintiff6. Defendant7. Chief Justice8. Arguments9. Decision10. Constitutional11. Unconstitutional Ok so can yall help me review my paragraph b4 I submit it?The question to this is: Explain how natural resources are identified and why natural resources are unevenly distributed. Be sure to use information from the reading to support your answer. (pls don't copy mine if yall have this too, i don't wanna have to redo it :( --->Natural resources are identified in mainly one way. According to the article, satellites and machines are used to identify. Satellites can scan the Earth's surface to detect natural resources. The colors shown on the results of the scan represent the types of rocks in the area. For example, yellow-like, orange, and green colors represent limestone, sandstone, and gypsum, respectively. Satellites can also locate vegetation. The displayed shade of red helps scientists identify the trees and plants because each type of plant has its own brightness or darkness". Natural resources are often unevenly distributed. But, this is not humans' fault. Some resources require certain living and temperature conditions. For example, the amount of copper ore produced depends on the amount of volcanic activity. Sometimes, in certain areas of the world, there is more salty water than fresh. This occurs because freshwater travels over many surfaces before it even gets to the ocean. Hence, you may now understand the reason how natural resources are identified, and why natural resources are unevenly distributed. Select all the expressions that equal 4-12.