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May 25, 2016

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

Number of results: 69,163

Chemistry
which substance has the greatest intermolecular forces of attraction between molecules ? 1)propanone 2)ethanol 3)water 4)ethanoic acid dont really understand, please help
February 24, 2011 by Hannah

Chemistry
If 16.01 grams of sulfuric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP? What is the balanced equation?
July 13, 2011 by Bradley

Chemistry
Calculate the number of mL of hydrogen gas at 27 degrees Celsius and 640 Torr produced by the reaction of 0.520 grams of magnesium with excess hydrochloric acid.
February 5, 2012 by Noah

Chemistry
What volume of hydrogen gas measured at 27celcius and 723 torr may be prepared by the reaction of 8.88 grams of gallium with an excess of hydrochloric acid? Ga+ HCl ==> GaCl3 + H2
March 25, 2012 by Anonymous

chemisrty
what volume of hydrogen gas at STP can be produced by reacting 15.0 grams of uluminum with sulfuric acid? the equation is: 2Al+ 3H2SO4---> Al2(SO4)3+ 3H2
March 29, 2012 by kim

world geography
water pollution in the united states and canada is caused by: _a. acid rain _b. runoff agricultural chemicals _c. industrial wastes _d. ALL OF THE ABOVE
May 28, 2012 by natasha napier

chemistry
You are given 50 mL of .25 M citric acid. How many moles of NaOH would you need to add to obtain a soln with a pH of 6.7? Assume volume unchanged Ka1=7.4E-4 Ka2=1.7E-5 Ka3=4E-7
July 26, 2012 by megan

chemistry
I left out part of my question. This may make better sense. But I'm not sure of what he can be asking me to do with it. 75g of tartaric acid in one liter is used in a titration. What could he want me to find?
October 6, 2012 by What?

chemistry
0.6905kg zinc reacts with hydrochloric acid.how many balloons can be filled with the hydrogen gas where the pressure inside the balloon is 790metrehg and temperature is 27 degree centigrade .
October 12, 2014 by Twaha

chemistry
In a certain experiment a student finds that the PHs of 0.10 M solutions of three potassium salts KX, KY, and KZ are 7.0, 9.0, and 11.0, respectively. Arrange the acids HX, HY, and HZ in order of increasing acid strength.
November 22, 2014 by fatima

Chemistry
Complete the Bronsted- Lowry reaction, placing each product by its appropriate label. HCO3^-+HNO2 (double arrows) need a spot for acid and for base.
December 5, 2014 by Allison

chemistry
i want to neutralize a 10 ml 3 molar sulfuric acid using calcium carbonate but don't know how to do the math the explanation confused me. (also i have to use sig fig and uncertainty)
February 10, 2015 by william

Chrmistry
How many grams of hydrogen gas be produced from the reaction of 3 g of magnesium with 4 g of hydrochloric acid. identify the limiting in excess reactants. Please help btw that's the exact question.
March 8, 2015 by Lucy

chemistry
14g of lithium hydroxide dissolves in 500cm^3 of water.in titration ,30cm^3 is used to neutralise sulphuric acid of 0,2mol.dm^-3 how do i calculate (a)concentation of a base
May 28, 2015 by jeremy

PreChem
Classify each of the reactions. precipitation, acid-base neutralization, redox C2H4(g)+3O2(g)----> 2CO2(g)+2H2O(l) Cu(s)+FeCl2(aq)---->Fe(s)+CuCl2(aq) HI(aq)+LiOH(aq)---->H2O(l)+LiI(aq)
June 18, 2015 by Noah

Chemistry
What minimum volume of 14.0 M hydrochloric acid would be required to completely dissolve a 600.0 −g iron bar? I'm getting around 2.3 L but it's saying it's incorrect...
November 18, 2015 by Jorge

Chemistry
Which four salts could undergo hydrolysis to act as buffers if added to their parent acid or base? KF KH2PO4 NaCl KBr NaClO4 C5H5NH3Cl NH4Cl
March 22, 2016 by Mikah

Chemistry (solubility product question)
"When 3.00 ml of a 0.00600 M K2CrO4 solution and 3.000 ml of a 0.0100 M Cu(NO3)2 solution are mixed, some solid forms. The mixture is centrifuged and the supernatant is removed. The absorbance of the supernatant, measured at 400 nm in a 1.00 cm cuvette, is 0.286. The ...
April 10, 2015 by Nikki

Biology
Which substance does not leave the nephrons by active transport? a)Potassium ions b)Water c)Calcium ions d)Phosphate ions e)glucose I think its either water or glucose... Another question.. Two strategies- negative feedback and antagonistic hormones- have evolved to maintain a...
March 31, 2011 by Joey

Chemistry
At 900 K the following reaction has Kp=0.345; 2 SO2(g) + O2 (g) -> 2 SO3 (g) In an equilibrium mixture the partial pressures of SO2 and O2 are 0.145 atm and 0.455 atm, respectively. What is the equilibrium partial pressure of SO3 in the mixture?
September 7, 2009 by Anonymous

chemistry
Suppose a reaction has the equilibrium constant K = 2.3 10-7 at a particular temperature. Will there be a large or small amount of unreacted starting material present when this reaction reaches equilibrium? a)There will be a small amount of unreacted starting material present ...
March 15, 2015 by andy

organic chemistry
Why is it necessary that absolute ethanol must be used in preparing an ester from ethanol and a carboxylic acid?
February 29, 2008 by PIN

chem
Why was a strong base (KOH) used in the synthesis of ferrocene? Why would a strong acid not be a suitable alternative?
March 28, 2009 by dana

chemistry
The molecular formula of acetylsalicylic acid is C9H8O4. How many molecules of C9H8O4 are in a 750.0mg tablet of asprin?
March 4, 2010 by Kerry

Organic Chemistry 1
write a step-by-step mechanism for the reaction of 1-butanol with sodium bromide and sulfuric acid.
March 17, 2010 by Brianna

chemistry
for haloacetic acids, HBr has higher stronger acid strength then HF but doesnt HBr has low dipole then
May 5, 2010 by bme1

Chemistry
Give the molecular, complete ionic, and net ionic equations for the reaction of ammonia with hydrochloric acid.
March 23, 2011 by Bruce

Chemistry
How many mL of 1.211 Molarity sulfuric acid is required to completely neutralize 10.0 mL of 3.210 Molarity calcium hydroxide?
March 23, 2011 by Bruce

chemistry
how to know if an acid is weak or strong , i simply dont understand the idea of dissolving or not dissolving completely in water ,,,,
March 26, 2011 by auro

Chemistry
What if sodium iodide, sodium iodate, and sulfuric acid were mixed with a small amount of 1,2 dichloroethane? With hexane?
May 8, 2011 by Hillary

Chemistry
How many grams of Calcium Chloride can be formed by reacting 50.05 g of Calcium carbonate with 900.00 ml of .8000 M hydrochloric acid
October 10, 2011 by Anonymous

Chemistry
How many moles of hypochlorous acid are needed to react with 0.151 mol of 9-fluorenol? Is 0.524 moles correct?
February 1, 2012 by Jessie

Chemistry
Calculate the pH when 39.0mL of 0.321 of HA is mixed with 39.0mL of 0.321M NaOH where HA is a monoprotic weak acid with Ka= 7.5x10^-5 M ?
March 24, 2012 by Jematormal91

Chemistry
How do I calculated the mass and moles of nitric acids when only given 2ml of concentrate nitric acid
August 30, 2012 by Jason

Chemistry
Find the theoretical pH of .01M and .05M benzoic acid buffer when 2ml of .1MNaOH was added to each buffer.
November 1, 2012 by Brad

Geo 7th Grade
is increase of fish population due to acid rain?!?!?!?1 thanks ♥dino♥
November 16, 2012 by rawr... im a dinosaur.... rawr

chemistry
determining the concentration of a strong acid HCl when your given that the volume is 10ml and the mass of NaOH is 0.10 and the volume is 13.45
December 10, 2012 by ashley

Chemistry
if the mole fractionof sulfuric acid (H2SO4) in an aqueous solitioin is 0.325, what is the percent by mass of H2SO4?
March 3, 2013 by Joy

Chemistry
Suppose that 14.9 mL of 0.0512 M NaOH were required to titrate a sample of unknown acid. How many moles of NaOH were used?
March 5, 2014 by Rae

Chemistry
A tanker spilled 5,000l ammonia (approximately 0.2M). How much sulphuric acid is needed to nuetralize ammonia?
June 8, 2015 by Anne

chemistry
is it other than CH3COOH + C2H5OH => CH3COOC2H5 propanoic acid and isoamyl alcohol to make isoamyl propanoate?
February 21, 2016 by ss

Science
Ca = 0.75 , Cb = 0.735, and Ka = 7.87044 10 6 volume of acid is 100 mL. What is the volume of base at the equiva- lence point of this titration?
March 9, 2016 by Tina

chemistry
How many liters of hydrogen will be produced when 3766 g of aluminum are combined with hydrobromic acid to make aluminum bromide?
March 23, 2016 by cara

Science 207
Lab 2 Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 2 3 4 5 6 7 8 POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil, vinegar, and laundry detergent to ...
June 14, 2015 by Lisa

Science 207
Lab 2 Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 2 3 4 5 6 7 8 POST LAB QUESTIONS 1. Develop hypotheses on the ability of oil, vinegar, and laundry detergent to ...
June 15, 2015 by Lisa

Math
1) Find the solution to the following system of two linear equations, if it has a solution. 2x-y=3, -x+y=1 2Find the solution to the following system of two linear equations, if it has a solution. 2x+y=4, x+3/2y=3
October 13, 2011 by Megan

Chemistry Equilibrium
Which of the following conditions is always true at equilibrium? deltaG=0, Q=1, K=1, deltaG=deltaG(standard), deltaG(standard)=0, Q=0, deltaG(standard)=1 I'm so confused, please help!
March 14, 2013 by Student

Chemistry
Consider the following thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in nail polish remover: C3C6O + 4 O2 --> 3 CO2 + 3H2O DELTA Hrxm= -1790kJ If a bottle of nail polish remover contains 183 mL of acetone, how much heat would be released...
March 19, 2012 by Ashley

Physics
An object of mass m=80 kg moves in one dimension subject to the potential energy U(x)=λ/4*(x2−a2)2+(b/2*x2) a) How many equilibrium points (stable and unstable ones) does this potential have? b) Find a stable equilibrium point x0 such that x0 is positive. (in meters...
November 2, 2013 by Phy

Chemistry
Consider the following reaction. 2A(aq) (Two way arrows) B(aq) Kp = 5.48*10^-5 at 500K If a sample of A at 3.10atm is heated to 500K, what is the pressure of B at equilibrium? I know I need to do the ICE table, but am having trouble solving for x once I plug everything in. "A...
February 9, 2016 by Ashtyn

chemistry
Consider the following chemical equilibrium: SO3(g) --> SO2(g) + 1/2 O2(g) and Delta H = 98.9J a. Predict weather the forward or reverse reaction will occur when the equilibrium is disturbed by: i. adding oxygen gas ii. compressing the system at constant temperature iii. ...
March 6, 2008 by linda

Chemistry
1. Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may represent C9H7NH+ ...
November 30, 2014 by Mcmaster university

chemistry
The urine excreted by an adult patient over 24 hours was collected and diluted to give 2.000L sample. at ph 10 EDTA FORMS 1:1 COMPLEX WITH BOTH Mg2+ and Ca2+ and after buffering at this pH a 10mL aliquot of the sample required 26.81mL of 0.003474M EDTA for titration The ...
March 12, 2012 by jenny

chemistry
how many mL of 1M HC2H3O2 are required to neutralize a spill of 25mL of 6M NaOH?
December 7, 2010 by erin

college chemistry
What is the ratio of KC2H3O2 and HC2H3O2 in a buffer with a pH of 5.25? Ka = 1.8 x10-5?
November 16, 2011 by Teresa

Chem
How do I Balance the equation. HC2H3O2(aq)+Ca(OH)2(aq)→H2O(l)+Ca(C2H3O2)2(aq)
August 16, 2013 by Paul

Chemistry
A student ran the following reaction in the laboratory at 327 K: CH4(g) + CCl4(g) 2 CH2Cl2(g) When she introduced 4.07E-2 moles of CH4(g) and 7.57E-2 moles of CCl4(g) into a 1.00 Liter container, she found the equilibrium concentration of CH2Cl2(g) to be 1.21E-2 M. Calculate ...
November 19, 2013 by Jessica

chemistry
Construct a galvanic (voltaic) cell from the half reactions shown below. Au3+ + 3 e- → Au (s) ξo= 1.420 V Br2 (l) + 2 e-→ 2 Br- (aq) ξo= 1.087 V Calculate the equilibrium constant (K) for this cell. Assume that the temperature is 298K. First, consider ...
May 2, 2014 by bekah

chem
The decomposition of ammonium hydrogen sulfide that is shown below is an endothermic process. NH4HS(s) reverse reaction arrow NH3(g) + H2S(g) A 6.1589 g sample of the solid is placed in an evacuated 4.000 L vessel at exactly 24C. After equilibrium has been established, the ...
February 10, 2010 by Anonymous

Chemistry
I'm doing online chemistry homework, and the site keeps telling me I have the wrong answer, but I'm not sure what I'm doing wrong. please help? What is the pH of a 0.089M solution of phosphorous acid (H2PHO3) in water? The value of Ka1 for H2PHO3 is 1.600 E-2 and the value of ...
January 22, 2012 by Summer

Chemistry
Consider the isomerization equlibria of an alkene (C4H8) that co-exists as three isomers. (These 3 are in an equlibrium triangle) Reaction 1: cis-2-butene ⇔ trans-2-butene Reaction 2: cis-2-butene ⇔ 2-methylpropene Reaction 3: trans-2-butene ⇔ 2-methylpropene...
March 3, 2013 by Gleb

BioChem
I have a hard time with this question. Please help. One way to determine the concentration of protein in a solution is to perform a "protein assay". There are several assay kits on the market that one can use, but they all rely on the common paradigm that the aromatic amino ...
June 17, 2006 by Jamshid

chemistry
A chemist wishes to determine the rate of reaction of zinc with hydrochloric acid. The equation for the reaction is: Zn(s) + 2HCl(aq) ---> H2(g) + ZnCl2(aq) A piece of zinc is dropped into 1.00 L of 0.100 M HCl and the following data were obtained: Time/Mass of Zinc 0 s/0....
April 17, 2010 by Juggy

chem
Different manufacturers claim to have the best antacid. Which of the following tablets would neutralize the most acid for the money? Write a balanced chemical equation along with your answer. a) Rolaids (550 mg CaCO3 and 110 mg Mg(OH) per tablet) - 150 tablets for $9.44 b) ...
October 25, 2015 by John

chem - help!
Different manufacturers claim to have the best antacid. Which of the following tablets would neutralize the most acid for the money? Write a balanced chemical equation along with your answer. a) Rolaids (550 mg CaCO3 and 110 mg Mg(OH) per tablet) - 150 tablets for $9.44 b) ...
October 26, 2015 by John

Science (check please)
3. Which of the following pairs of terms could be used to describe a bullfrog that is active at night and enters a state of complete inactivity during colds months? . . . My answer: Circadian rhythm and hibernation.
March 28, 2014 by luna

math
A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment 70 ML of the 50% solution and 35 ML of the 80% solution 35 ML of the 50% ...
December 24, 2013 by chandler

Algebra 1
A science teacher has supply of 50% methane solution and a supply of 80% methane solution.How much of each solution should the teacher mix together to get 105 mL of 60% methane solution for an experiment. a. 70 mL of the 50% solution and 35 mL of the 80% solution b. 35 mL of ...
January 5, 2016 by sierra.(@ MS.SUE PLEASE HELP)

Math
A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 ML of 60% sugar solution for an experiment a. 70 ML of the 50% solution and 35 ML of the 80% solution*** b. 35 ML of ...
January 19, 2016 by Kaai97

Chemistry
Determine the volume, in milliliters, required to prepare each of the following diluted solutions. 40.0mL of a 2.75M KNO3 solution using a 1.00M KNO3 solution 45.0mL of a 2.90M H2SO4 solution using a 6.00M H2SO4 solution 0.700L of a 2.10M NH4Cl solution using a 5.00M NH4Cl ...
April 7, 2015 by Chan

Chemistry
here is the question. it is a fact that when you add acetone to saturated sodium chloride, the equilibrum shifts towards the right. what observation supports this fact? what is the role of acetone in shifting the equilibrium towards the right side? What reaction conditions ...
March 21, 2010 by Dalala

inorganic chemistry
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effet
September 11, 2010 by moon

in organic chemistry
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effet
September 11, 2010 by moon

please chem help
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
September 16, 2010 by moon

please chem help
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
September 16, 2010 by moon

please chem help
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
September 16, 2010 by moon

please chem help
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
September 16, 2010 by moon

AP Chemistry
A solution is prepared by mixing 50.0 mL of 0.17 M Pb(NO3)2 with 50.0 mL of 1.6 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. Ksp for PbCl2(s) is 1.6X 10-5.
December 4, 2011 by Bill

chemistry
A solution is prepared by mixing 50.7 mL of 0.28 M Pb(NO3)2 with 70.8 mL of 1.0 M KCl. Calculate the concentrations of Pb2+ and Cl - at equilibrium. Ksp for PbCl2(s) is 1.6 10-5.
February 21, 2013 by jeff

Organic Chemistry
How do I draw the condensed formula for: 1. 2-methyl-2-pentene 2. 5-methyl-1-hexene 3. 2,2,4,5-tetramethylhexane 4. propanoic acid 5. 2-pentyne
September 30, 2007 by Cinnamon

12th grade
Write the chemical equation for Sulfiric Acid and potassisum sulfate the product is potassium sulfate and water.
February 16, 2009 by Liz

biology
Organic compounds-a)carbohydrates b)lipids c)proteins d)nucleic acid (Explain what each organic compound is and why it is important to the cell)
January 13, 2010 by kim

CHEMISTRY
how many grams of copper (II) Chloride are formed in the double replascement reaction of 1.1 g copper (II) oxide and excess hydrochloric acid?
July 11, 2010 by maleia

acid and base titrations
in a titration, 0.0400 mol of solid NaOH is required to neutralize 10.0 mL of H2SO4(aq). From these data, the [H2SO4] is:
November 19, 2010 by jj reddick

chemistry
What is the concentration of HCl in a 250.0 mL sample of hydrochloric acid if 15.5 mL of 0.0100 M NaOH is needed to react with all the HCl?
February 22, 2011 by Maddy

Chemistry
Give the molecular, complete ionic, and net ionic equations for the reaction of phosphoric acid and magnesium carbonate.
March 23, 2011 by Bruce

Chemistry
Give the molecular, complete ionic, and net ionic equations for the reaction of sulfuric acid and barium hydroxide.
March 23, 2011 by Bruce

chemistry
The conjugate acid of CNO- is a. HCNO b. CNO- c. CN- d. H2CNO e. HCN Not quite sure for this question, is A the answer? Need help, thanks.
May 26, 2011 by Cheryl

Chemistry
How do we know that the moles of ascorbic acid originally present in the juice is equal to the moles of I2 that we added when the color change occurred?
October 3, 2011 by Anonymous

college Chemistry
molarity of hydrochloric acid=0.5 M-cost of tums package 150 tablets is 9.99 what is the cost of a single tablet
October 25, 2011 by Nadine Anthony

chemistry
What mass of hydrogen peroxide should result when 1.50g of barium peroxide is reacted with 25.0mL of 0.50 M hydrochloric acid?
December 13, 2011 by confused

Chemistry Help Please
i do not understand how to solve this problem, please help 10.0mL 0.5M sulfuric acid can neutralize what volume of 0.5M ammonium hydroxide?
March 31, 2012 by Robert

chem
Aspartame, an amide, is the sweetener commonly used in diet cola.What is the carboxylic acid that is a reactant in the production of aspartame.
April 26, 2012 by al

chemistry
How would you separate a mixture of equal amount of dibenalacetone a neutral compound and benzoic acid an acidic compound?
October 1, 2012 by Julius muson

chemiswtry
in a lab there is a spill of 47.5ml of .500 mol/l NaOH how many grams of Sulfuric acid is needed to neutralizethe spill
October 18, 2012 by kim

chemistry
What will be the total mass of a 73.3 gram flask and its contents if it contains 20.1 mL of concentrated sulfuric acid with density 1.84 gram per mL?
October 28, 2012 by Jas

chemistry please help!!
what is the net ionic equation for the reaction between a strong acid and a strong base? what does it mean by this question?/ (: thanks.
March 4, 2013 by yvette

chemistry
why we use phenolphthalein indicator in the determination of the strenght of NAOH by using standard oxalic acid why not the others indicator?
June 25, 2013 by sbr

chemistry
how to calculate the ph level of 2.5g NaOH, 2g H2SO4 and 1.5g ethenoic acid in water? Each compound being put in a liter of water.
August 17, 2013 by livingstone

Chemistry
Draw condensed structural formula for... 2,3-dichloropropanoic acid I know it is hard to DRAW online, but still you can do something like this... CH-...
January 12, 2014 by Anonymous

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