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Acetic acid is the active ingredient in vinegar. In a solution of acetic acid the following equilibrium is established: HC2H3O2

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chemistry
Compute the boiling point of this Solution: 25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling pint os H2O is raised 0.512 Celsius per mole of solute.

Chemistry
a 4.000grams sample of aluminum metal is added to a solution containing 5.000grams of dissolved iron chloride. the reaction results in the formation of aluminum chloride and metallic iron. when the reaction is complete, unreacted aluminum remains, and this unreacted aluminum ...

chemistry
(1) The same quantity of electricity is passed through 2voltameters connected in series, one copper voltmeter with copper electrode in a copper(ii) tetraoxosulphate(vi) solution. The other platinum electrode in a dilute solution of tetraoxosulphate (vi) acid. 500cm³ of dry ...

chemistry..
(1) The same quantity of electricity is passed through 2voltameters connected in series, one copper voltmeter with copper electrode in a copper(ii) tetraoxosulphate(vi) solution. The other platinum electrode in a dilute solution of tetraoxosulphate (vi) acid. 500cm³ of dry ...

chemistry
From the following information, determine ΔH°f of malonic acid, CH2(COOH)2(s). CH2(COOH)2(s) + 2O2(g) → 3CO2(g) + 2H2O(l); ΔH° = –861.0 kJ Substance ΔH°f (kJ/mol) CO2(g) –393.5 H2O(l) –285.8 A. 2613.1 kJ B. –1540.3 kJ C. –2613.1 kJ D. 891.1 kJ...

Chemistry
Calculate the concentrations of all species in a 0.810 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4 x 10^-2 and Ka2 = 6.3 x 10^-8 so I'm trying to find Na, SO3 2-, HSO3-, H2SO3, OH-, H+ and heres what I tried to do so far but I'...

Chemistry
I: The standard reaction free energy at equilibrium is zero. II: A reaction stops when the equilibrium is reached. III: An equilibrium reaction is not affected by increasing the concentrations of products. Which of these statements is/are true?

Chemistry
A mixture containing 0.5 mol of H2 (g) and 0.5 mol of I2 (g) was introduced into a 10L container at a temperature of 448 C. At this temperature the equilibrium constant Kp is 50. i. What is the total pressure in the container before the reaction starts and at equilibrium. ii. ...

Chemistry
A mixture containing 0.5 mol of H2 (g) and 0.5 mol of I2 (g) was introduced into a 10L container at a temperature of 448 C. At this temperature the equilibrium constant Kp is 50. i. What is the total pressure in the container before the reaction starts and at equilibrium. ii. ...

Algebra 1
Algebra 1 word problems help please 1. Madison is making a vinaigrette for her catering service using olive oil that costs 50 cents per ounce and apple cider vinegar that costs 35 cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups ...

chemistry
When a mixture of two black powders is heated, it gave off a gas which turned lime water milky Give a chemical equation to show the reaction between gas and lime water Red scales residue can be seen on the black residue. Name the red scales The red scale residue partly ...

Chemistry
SO this is my first time doing this... lol i need help on an AP chemistry question for equilibrium. A 0.500 L tank contains 3.00 g of NO(g) at 750. K. The equilibrium constant for the reaction below at this temperature is 3.4 x 10 -3 2NO(g) ⇌ N2(g) + O2(g) (a) write the ...

CHEMISTRY> HELP QUICK! pls
1. The rate of a chemical reaction may be defined as: a) The speed at which a molecule travels from point A to point B. b) The change in concentration of reactants or products per unit time. c) The change in concentration of reactant divided by change in concentration of ...

chemistry
Determine the concentration at equilibrium if you start with 2.3 grams of Hydrogen and 200grams of Iodine in a 2.3 liter container. If you now add an extra .25M of HI after equilibrium, calculate Qc. Recalculate now what the concentrations should be at equilibrium. H2(g)+I2(g...

Chem
There are three questions in particular that I am having problems with. Here they are 1. A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration of FeSCN2+ ([FeSCN2+]std) for this standard ...

science(check answers)
2.C 3.A 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3.which of the following is not among the advantages of generating nuclear energy? A.It does not release carbon dioxide into the atmosphere. B.it ...

World history
1Which of the following would john locke most favor Republic Oligarchy Theocracy Absolute monarchy 2Whay was james i resistant to working with parliament He believed in the absolute power of kings He did not agree with the policies of the prime minister 3Which statement gives ...

Chemistry
What is the kb of a 0.0200 m ( at equilibrium) solution of methyl amine, ch3nh2, that has a ph of 11.40?

managerial economics
Problem One5 Consider the following simultaneous moves game in normal form: Player Two t1 t2 Player One r1 -2,4 0,-2 r2 -4,5 0,1 (a)State the set of Nash equilibrium strategies. (b)State the payoffs to each player in the Nash equilibrium.

chemistry(check my work)
Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g) is it like this, (5.462)^2/(0.2282x0....

chem12
for the equilibrium 2HI(g)--- H2(g) + I2 k eq = 8.0 2.0 mol of HI are placed in a 4.0 L container, and the system is allowed to reach equilibrium. Calculate the equilibrium concentration of all three gases. Inital 2HI 0.5mol/l H2 =0 I2=0 change 2HI= -2x H2=+x I2=+x equilibrium...

Chemistry
Calculate the molar heat of neutralization in kj/mol of the reaction between HA and BOH given the following information: The temperature change equals 9C 50mL of 1M concentration of Acid 50ml of 1M concentration of Base Heat Capacity of the calorimeter is 6.5 J/C. Specific ...

chem
how do you tell which reactant is limiting reactant with the following information: mass of cup 55.78g mass o/sodium bicarbonate 1.01g mass o/citric acid 1.52g toal mass 58.31g mass of cup,solute after reaction 59.95g mass o/carbon dioxide .42g H3C6H5O7(aq) + 3 NaHCO3(aq...

cHEMISTREY
1.00 MOL OF HC2H3O2

Chemistry
NaHCO3 (s) + HC2H3O2 (aq) ---> ?

chemistry
The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium sulfate is added, a ...

weighted averages
How do you do this? a pineapple drink contains 15% pineapple juice. how much pure pineapple juice should be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice? Let X be the amount of pure pineapple that you must add, in quarts. The amount of pure...

chemistry
The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

chemistry
The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5 oC. The mixture ...

A&P
A few practice ?'s on my study guide that I'm stuck on. Put these in the correct sequence for phagocytosis? chemotaxis, adherence, ingestion, digestion, killing. What is released by activated T cells and macrophages to mobilize immune cells and attract other leukocytes into ...

chemistry
What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places. I know what steps to use but have difficulty applying them to the quesiton Can someone please complete the question for me since there are about 10 other ...

Chemisrty
Chlorine gas can be produced in the laboratory by adding concentrated hydrochloric acid to manganese(IV) oxide in the following reaction.. MnO2(s)+ 4HCl(aq)-->MnCl2(aq)+ 2H2O(l)+ Cl2(g) A. Calculate the mass of MnO2 needed to produce 25.0g of Cl2 B. What mass of MnCl2 is ...

Chemistry
If a solution of sodium hydroxide is mixed from a 3M solution of sodium hydroxide, such that the volume of the original solution is 50ml and the volume of the final solution is 150ml, determine each of the following: a. The volume of water added to the solution b. The new ...

Chemistry, #3
Thallium hydroxide is a strong base used in the synthesis of some organic compounds. Calculate the pH of a solution containing 2.55 g TIOH per liter. Sorry! I'm having a really hard time with this acid/base stuff! TlOH is a strong base as the problem says. Do it just as you ...

Chemistry
Consider the equilibrium 2NO (g) <---> 2NO (g) + Cl2 (g). In a 1 L container @ equilibrium there are 1.0 mol NOCL, 0.70 mol NO, and 0.40 mol Cl2. @ constant temperature and volume, 0.10 mol NaCl is added. What are the concentrations in the "new" equilibrium in comparison...

Chemistry
4 Questions on molarity that I really don't understand. I have the formulas, but they don't seem to fit in to the question right. Please take a look, thanks! 1. Calculate the weight, in grams, of HNO3 present in 1.0 litre of 0.10M of solution. 2. What is the concentration, in ...

AP Chemistry
The equilibrium constant for thermal dissociation of F2 F2(g)<->2F(g) is 0.300. If initially 1.00 mol F2 is placed in a 1.00 L container, which of the following is the correct number of moles of F2 that have dissociated at equilibrium? 1. 0.130 mol 2. 0.418 mol 3. 0.548 ...

Chemistry
A stoppered flask at 25 C contains 250 mL water, 200 mL octanol, and 50 mL of air. An unknown mass of o-xylene is added to the 
flask and allowed to partition among the phases. After equilibrium has been established, 5.0 mg of o-xylene are measured in the water. 
...

Chemistry
How can I suggest a reason for the deviation for the pH of 4 M HCl? As my answer I put, The pH of 4 M HCl is negative because a molarity of an acid solution greater than 1 produces a negative pH. A negative pH means that the concentration of H+ or H3O+ ions is greater than 1 ...

chemistry
The following reaction is at equilibrium at a pressure of 1 atm, in a closed container. NaOH(s) + CO2(g) NaHCO3(s); ΔH°rxn < 0 Which, if any, of the following actions will decrease the concentration of CO2 gas present at equilibrium? A. lowering the temperature B. ...

College Gen.Chemistry
A student wanted to determine the amount of copper in a sample of copper ore. The student dissolved a 2.500 ± 0.001 g piece of copper ore in about 75 mL of nitric acid; then, a complexing agent was added. The student transferred this solution to a volumetric flask and used de...

Chemistry - Science (Dr. Bob222)
A student wanted to determine the amount of copper in a sample of copper ore. The student dissolved a 2.500 ± 0.001 g piece of copper ore in about 75 mL of nitric acid; then, a complexing agent was added. The student transferred this solution to a volumetric flask and used de...

Chemistry
The reaction of a metal ion, M^2+, with EDTA is given in the following equation: M^2+(aq) + Y^4-(aq) <==> MY^2-(aq) The EDTA was standardized with a 0.04 M Zn^2+ solution. 25.05 mL of EDTA solution was used to titrate the Zn^2+ solution. From this standardization, ...

Chemistry
4) Using your initial mass of copper (0.38), calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper (II) nitrate 5) Using your answer from question 4 (2x10^-3 L), calculate the minimum volume of 6M sodium ...

more chemistry help and proofread
write the formulas for the following potassium sulfide i put KaS Tin (IV) chloride i put SnCl4 Dihydrogen sulfide i put H2S Calcium Oxide i put CaO Hydrobromic acid i put HBr Aluminum Fluoride i put AlF3 dinotrogen pentoxide i put N2O5 Iron (III) carbonate i put Fe2(CO3)3

chemistry
One of the steps in the Ostwald process for the production of nitric acid involves oxidation of ammonia. 4NH3 (aq) + 5O2 (g) <---> 4NO (g) + 6H2O (g), Delta H= -905kJ a) State the reaction conditions that favour the production of nitrogen monoxide. b) A rhodium/platinum ...

Chemistry
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M. If 0.340 mol of F2 is added to this equilibrium mixture, calculate the concentrations of all ...

chemistry
A mixture consisting of 0.150 M N2(g) and 0.612 M H2(g) reacts and then reaches equilibrium according to the equation: N2(g) + 3H2(g) ⇋ 2NH3(g) At equilibrium, the concentration of ammonia is 0.213 M. Calculate the concentration (molarity) of H2(g) at equilibrium to 3 ...

chemistry
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 4.87-L rigid container are [H2] = 0.0496 M [F2] = 0.0116 M [HF] = 0.429 M. H2(g) + F2(g) <==> 2 HF(g) If 0.185 mol of F2 is added to this equilibrium mixture, calculate ...

Math (I've been on this problem for 3 hours)
If the supply and demand functions for a commodity are given by 2p - q + 10 = 0 and (p + q)(q + 10) = 3642 respectively, find the equilibrium price and quantity that give market equilibrium. (Round your answers to two decimal places.) Equilibrium price =

chemistry
For the formation of ammonia, the equilibrium constant is known to be 5.2 × 10−5 at 25◦C. After analysis, it is determined that [N2] = 3.1 M and [H2] = 0.8 M, both at equilibrium. How many grams of ammonia are in the 10 L reaction vessel at equilibium? Use the ...

CHEM HELPP!
Chlorine gas can be produced in the laboratory by adding concentrated hydrochloric acid to manganese(IV) oxide in the following reaction.. MnO2(s)+ 4HCl(aq)-->MnCl2(aq)+ 2H2O(l)+ Cl2(g) A. Calculate the mass of MnO2 needed to produce 25.0g of Cl2 B. What mass of MnCl2 is ...

Chemistry
The indicator bromocresol green (HIn) can be in two different forms: As HIn the color of the indicator is yellow, an In the color of the indicator is blue, and an equilmolar mixture of the two species is green. The Ka of the indicator is 2.5 x 10-5. What is the color of the ...

chemistry
Plan how you would make 100mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water. You should specify the amount of sodium carbonate and sodium hydrogen carbonate that you would use. Below is what i got up to then...

biology
A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the membrane. It would ...

Adverbs and other parts of speech
which one of the following words phrases if the superlative form of an adjective? A.Less B.Slower C.Most active D.more rapidly

chemistry
Copper can be determined gravimetrically by precipitation as copper(I)thiocyanate, CuSCN. A wrought aluminum-copper sample(4.5167 g) was dissolved in a minimum amount of concentrated HCl followd by the additon of 25 ml of sulfurous acid to reduced the copper. This solution was...

Chemistry
In aqueous solution, hydrochloric acid, HCl, and sodium carbonate, Na2CO3 react to produce gaseous carbon dioxide, CO2, water, H2O and sodium chloride, NaCl. A 10.0 g impure sample of Na2CO3 is dissolved completely in water; then treated with 3.00 mol L−1 HCl to evolve ...

science
what are sources and Health/Environmental Effects Carbon dioxide, Chlorofluorocarbons, Ground-level ozone, Sulfuric acid?

chemistry
What do you think causes the formation of color in the test tube during the reaction between copper and nitric acid?

chemistry
I need help with this question, because I can't find it anywhere in my book. Write an equation showing the addition of iodine to oleic acid:

chemistry
How many liters of CO2 form at STP if 5.0g of CaCO3 are treated with excess hydrochloric acid? show all your work

chemistry-acids and bases
determine how many mL's of a monohydroxic base with a pH of 9 is needed to neutralize 50 mL of a monoprotic acid with a pH of 2. I do not understand what to do. can someone please help?

chemistry
In a reaction, 25.0 grams of magnesium are added to a beaker containing 75.0 mL of 2.00 M nitric acid, HNO3. Which reactant is limiting? Which is in excess?

Organic Chemistry 1
Write an equation for the reaction of sodium bicarbonate with aqueous sulfuric acid to produce carbon dioxide.

Biology / Biochemistry
How will the conformation of an Enzyme (a protease) be affected when the amino acid residue is substituted with glutamate instead of glutamine?

Organic Chemistry
What is the smallest volume (in milliliters) of boiling water the student could use to dissolve the 3.88 g sample of phthalic acid?

Organic Chemistry
what is wrong with the idea that the reaction of maleic acid with zinc and aqueous HCL would yield tetrahydrofuran?

chemistry
What is the (mass, weight)measure of nitrobenzene, which derived from the action of nitric acid in 60 g benzene? Please sove cpmpletely

organic chemistry
Show the reaction equation and mechanisms of a mixture of napthalene,p-nitroaniline and benzoic acid dissolved in dichloromethane?

organic chemistry
Show the reaction equation and mechanisms of a mixture of napthalene,p-nitroaniline and benzoic acid dissolved in dichloromethane?

microbiology
When looking at various stains (i.e gram , acid fast), how do you differentiate between Micrococcus roseus and Lactococcus lactis? Thank you

Chemistry
Why is it desirable in the method of back-titration to have a considerable amount(more than 10mL) of acid added in excess?

Chemistry
According to the Bronsted-Lowry definition of acids and bases, is water an acid or base? Provide examples to support.

chemistry
How can you test how much can dilute sulfuric acid before it stops showing signs of normal acidic reactions?

Chemistry
Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

Chemistry
Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

Chemistry
Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

Chemistry
Which of these is best described as an acid-base reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH

Chemistry
I just cant seem to figure out how to get the pH of an acid or base using the ion product of water. A.[H3O+}= 5.6x10ee-3

chem help
if 20 ml of .025M Formic acid is combined with 30 ml of distilled water and titrated with .10 M NaOH. What is the theoretical endpoint (equivalence point)

biology
during translation, the amino acid detaches from the transfer RNA attaches to the end of a growing protein chain when?

physics
what is reaction product when ethene is treated with steam using phosphoric acid as catalyst at 300 degrees celcious

Chemistry
2.8g of iron (¡¡) reacted with 100ml of 2M sulfuric acid. Which reactant is in excess? And what volume of hydrogen gas is produced at RTP?

Chemistry
What volume of 0.250M KOH is required to titrate 2.30 x 10^3 mol of the weak acid H2C2O4 ? I know the answer is 18.4, but can you show the process?

Chemistry
If a procedure calls for 2mL of a concentrated nitric acid, what are the mass and moles of the HNO3 actually used in the reaction?

Chemistry
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C.

Chem
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C

Chem
Calculate the heat capacity of a calorimeter if th ecombustion of 4.665 g of benzoic acid led to an increase in temperature of 7.148 C

Chemistry
what mass of water will be formed by reaction of 3.50g of methylamine (8CH3NH2) with 15.0g of perchloric acid (13HClO4)? Answer is 99.1. How do you work this?

Chemistry
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

Chemistry
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

Chemistry
Determine the theoretical field of aspirin for a student who started the experiment with 2.489 g of salicylic acid. Show your work.

Science (chemistry)
Pls help.. Q: prepare a table of value for acid-base titration using 26.40cm^3 as end point

Chemistry
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

chemistry
While doing a titration lab to determine concentration of hydrogen peroxide what is the purpose of using an acid to dilute th H2O2?

Chemistry
If 25.0 mLs of 0.150M nitric acid was used, how many grams of barium carbonate would be required for complete reaction?

Science
Citric acid has the formula C3H3OH(COOH)3. How many atoms of carbon,hydrogen and oxygen are in each molecule? Please help I don't understand this!! Thank you

Chemistry
Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225mL of battery acid?

Chemistry
How would you make 100 mL of a carbonic acid buffer at 0.2 M and pH = 9.8 using 0.5 M HCO3 and either 0.1 M NaOH or 0.1 M HCl and water?

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