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June 30, 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: 69,623

Chemistry
Potency of HCl(l) is 35% (w/w) and density 1.19 g/cm3. Calculate the molarity of the Acid? [Molecular Weight of HCl is 36.5].
January 25, 2011 by Anik

Chemistry
How many grams of water are produced from the reaction of 1L of 2 molarity hydrochloric acid with 1L of 2 Molarity barium hydroxide?
March 23, 2011 by Bruce

chem 100
how many moles of magnesium hydroxide are needed theoretically to neutralize 2.4 moles of hydrochloric acid?
March 27, 2011 by sarah phillips

Please help!
Find the volume of 0.110 M hydrochloric acid necessary to react completely with 1.54 Al(OH)3. Please explain how to do this.
September 28, 2011 by Brittany

chemistry 12
Calculate [H3O+] and [OH-] in 0.18M hydrobromic acid, HOBr(aq), having a K of 2.0x10^-9? I got 9.0x10^-8
October 5, 2011 by Jacob

chemistry
When 50.0 mL of 0.050 M formic acid, HCHO2, is titrated with 0.050 M sodium hydroxide, what is the pH at the equivalence point?
April 11, 2012 by chamy

chem
carbamic acid and ammonia react to form an amide and water. What is the amide product of this reaction.
April 26, 2012 by al

Chemistry 101
75.0 G tartaric acid in 1 liter is what Molarity (moles/liter)? mw=150.087 g/mol
October 15, 2012 by Renee

science
which rna base sequence would produce the animo acid sequence: Valine ALanine
March 11, 2013 by mary

chem 101
75.0 G tartaric acid in 1 liter is what molarity (moles/liter) mw= 150.087g/mol
March 14, 2013 by alain

Chemistry
How many moles of hydrochloric acid are required to react with 2.57 moles of calcium hydroxide in a neutralization reaction?
March 24, 2014 by Anonymous

college chem
What would the [OH-] be after addition of 17.47 mL of 0.1000 M NaOH to 25.00 mL of 0.1000 HA (a weak acid, Ka = 3.16e-4)?
April 5, 2014 by hershi

chemistry
state the chemical formula of phthalic acid and calculate the molar mass using the formula.
September 18, 2014 by marcus

chemistry
How many sigma (σ) bonds and pi (π) bonds are in one molecule of arsenic acid, H3AsO4
May 2, 2015 by nick

chemistry
the reaction between CV+ and -OH, is CV+ lewis acid and OH lewis base
May 11, 2010 by bme1

chemistry
the reaction between CV+ and -OH, is CV+ lewis acid and OH lewis base
May 12, 2010 by bme1

Biochemistry 1
1. a. What is a polyunsaturated fatty acid? b. What are trans-fatty acids?
April 20, 2011 by Mangetty

Chemistry
how can a salt be related to a particular acid and a particular base
December 1, 2012 by Dimitri

Chemistry
how can a salt be related to a particular acid and a particular base
December 1, 2012 by Dimitri

Chemistry-please help
1) Metals that are above hydrogen in the reactivity series react with dilute hydrochloric acid to produce hydrogen gas. Lead is just above hydrogen in the reactivity series.I read a book that says no reaction occurs between lead & dilute acid. Why? Is it because the reaction ...
January 26, 2009 by candy

chem
the following experiment was performed in the laboratory : an excess of solid SrCrO4 is vigorously shaken in water until a saturated solution is obtained. The excess solid is filtrated from the solution and 25.00 ml of the solution is titrated with 0.0115 M fe(no3)2 solution. ...
November 17, 2015 by jack

Chemistry
A 10.0-mL solution of 0.30 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the following additions of the HCl solution: a) 0.00 mL b) 10.0 mL c) 30.0 mL d) 40.0 mL
May 2, 2011 by Martina

Chemistry 3
How is it possible for me to tell which of these solutes will produce an acidic solution when dissolved in water? LiOH CH3CO2K H2SO3 KOH NaOH NH4NO3 NaOH NaOH can't be the only one... Molecules that produce OH^- when dissolved in water will be basic. Examples:LiOH, KOH, NaOH, ...
May 24, 2007 by Lindsay

chemistry
my younger sister has a homework assignment to find out and draw the hazard symbols found on the following.... vinegar milk of magnesia toothpaste pickled onions orange juice washing powder soap lemonade .....we've looked around the house but nothing seems to have the symbols ...
September 25, 2007 by aimee

help please:)
Asking questions and drawing conclusions will do which of the following? A. Help you stay alert while reading B. Engage you in active reading. C. Help you remember information. D. All of the above. i got C what do you think?
September 27, 2011 by ciara

writing
Catherine received a 70 on her essay because the vocabulary was basic and there was a lack of clear and active voice. Which of the following areas of her essay were weak? A. Organization B. Mechanics C. Content D. Style
March 28, 2012 by Anonymous

chemistry
1. when sodium is combined with water, sodium hydroxide and hydrogen gas are produced. How many moles of sodium do you need to make 4.0 mol of hydrogen gas? 2.when aluminium reacts with sulfuric acid, aluminium sulfate and hydrogen gas are produced. How many moes of sulfuric ...
April 29, 2010 by Kelcye

Economics*Micro
A market has the following demand and supply equations: Qd = -50P + 1000 Qs = 150P - 400 Which of the following statements is true? a. If the price were $9, a surplus of 300 units would exist and price would tend to fall. b. If the price were $3, a shortage of 800 units would ...
February 14, 2009 by SadBob

mechanics: simple harmonic oscillation
Consider an ideal spring that has an unstretched length ℓ and a spring constant k. Suppose the spring is attached to a mass m that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x_0 from equilibrium and then released with an...
September 3, 2015 by student1618

Chemistry
Consider the following equilibrium: H2CO3 (aq) ↔ H2O (l) + CO2 (g) Which direction will the equilibrium shift (left or right) if we: Increase the pressure by decreasing the volume of the system: Increase the pressure by adding Argon to the system: Addition of NaOH (aq) ...
February 19, 2013 by Anonymous

algebra
for the system of inequalities y >= 2x - 1 and y <= 3x - 1, which of the following statements best descibes the ordered pair (1,1) a)The point (1,1) is a solution for y >= 2x - 1, but not y <= 3x - 1. b) The point (1,1) is not a solution for either equation. c)The ...
May 3, 2010 by tim

algebra
for the system of inequalities y >= 2x - 1 and y <= 3x - 1, which of the following statements best descibes the ordered pair (1,1) a)The point (1,1) is a solution for y >= 2x - 1, but not y <= 3x - 1. b) The point (1,1) is not a solution for either equation. c)The ...
May 3, 2010 by tim

apche,m
what is the density of vinegar? thanks
March 16, 2010 by urgent

apchem
what is the density of vinegar? thanks
March 16, 2010 by urgent

physics
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of 1.00 g/cm3 at the ...
September 6, 2010 by Jack

chemistry
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of 1.00 g/cm3 at the ...
September 6, 2010 by Jack

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
Could someone check my answers? 1. Why was 95% ethanol alcohol added when titrating aspirin in an experiment? Because it helps the aspirin dry quicker and become pure while the titration is going on. 2. Would the following mistakes cause the calculated percent yield to be ...
March 27, 2007 by Jim

chem
The mole fraction of an aqueous solution of potassium perchlorate is 0.125. Assuming that the density of this solution is 1.20g mL-1, calculate the following: (A) the mass percent of potassium perchlorate in the solution. (B) the molarity of potassium perchlorate in the ...
December 14, 2010 by Lori

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
okay im totally lost here, the question i need to answer is explain why codons can't consist of two bases instead of three for each amino acid. im so confused..help!
January 6, 2008 by Kaitlyn

Chemistry
List 4 different ways in which the function of hemoglobin could be changed by a single amino acid substitution. i have no sweet clue... the question is very vague
January 31, 2008 by Jonny

check geo
what has caused the destruction of about 80 percent of polands forests? A)farming collectives B)acid rain C)global warning D)timber harvesting my choice is d
August 30, 2009 by henry

Organic Chemistry
When 2-methyl-2-butene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. what new substance has been formed?
March 30, 2010 by Melissa

chemistry
how many liters of hydrogen gas measured at 1.05 atm and negative 25 degrees will be produced when 5.00 grams of magnesium metal is dropped into excess hydrochloric acid?
May 25, 2010 by sss

chemistry
What are the three chemical reasons for the large negative energy of hydrolysis of phosphoric acid anhydride linkage for compounds such at ATP, ADP, AND pyrophosphate?
October 6, 2010 by nikki

chemistry
Consider HA- the intermediate form of a diprotic acid. Ka for this species is 10-4 and Kb is 10-8. Nonetheless, the Ka and Kb reactions proceed to nearly the same extent when NaHA is dissolved in water. Can anyone explain that?
October 12, 2010 by agnes

biochemistry
What are the three chemical reasons for the large negative energy of hydrolysis of phosphoric acid anhydride linkage for compounds such at ATP, ADP, and pyrophosphate?
February 13, 2011 by Anonymous

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
Write the formation equation for the ester that forms between propanoic acid and 1-pentanol. Include the names of the products and the structures for all substances involved.
May 29, 2016 by Lily

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

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

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

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

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

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