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

Number of results: 10,590

Chemistry
Hydrocyanic acid has a Ka of 4.0 X 10-10. What is the percent of ionization of a 1.0 molar solution? my answer is 0.004% is this correct? a) 0.004% b) 0.0020% c) 0.0004% d) 0.02%
Monday, May 10, 2010 at 10:40pm by Centhia

Chemistry
What is the pH of a solution containing 0.10 M propanoic acid (HC3H5O2) and 0.10 M sodium propanoate after 0.02 mol of HCl is added to 1.0 L of the solution?
Sunday, February 28, 2010 at 8:39pm by Blake

chemisty
is this correct?: word equation: nitric acid+potassium hydroxide= potassium nitrate balanced symbol equation: 3HNO3+2KOH=2KNO3+H2O
Sunday, June 7, 2009 at 7:20am by andréa

chem
Wwrite a balanced equation for the following chemical processes: the reaction between NaOH an dsalicyclic acid; the reaction between HCl and socium benzoate.
Wednesday, June 3, 2009 at 9:31am by Mandy

Chemistry
My professor also said that its water, but he also asked my what else is in the reaction that could potentially act as a base. Is there anyway that phosphoric acid can turn into a base?
Thursday, April 2, 2009 at 8:01pm by Sara

chemistry
For the reaction SO3 plus H2O>>H2SO4, how many grams of sulfuric acid can be produced from 200.g of sulfuric trioxide and 100.g of water??
Tuesday, March 18, 2008 at 11:56am by Whittney

Chemistry
"and a carboxylic acid salt (or a carboxylate ion and the metal ion from the base)"... You could name the salt and/or the ions for a more complete answer, but otherwise this looks OK.
Sunday, February 17, 2008 at 12:06am by DrRuss

Chemistry
I assume the answer is H2SO4; however, you should be aware that only the FIRST H is a strong acid, the second H is weak (a strong weak but it is not 100% ionized).
Tuesday, December 11, 2007 at 10:49pm by DrBob222

chemistry
What are the products formed when sulfuric acid solution reacts with potassium hydroxide(KOH) solution? Is this correct H2SO4+KOH>KS04+H30
Tuesday, November 20, 2007 at 9:12pm by Majra

Science Question for Lance
Histones interact with DNA at specific loci because DNA has phosphate functional groups. This interaction occurs because histones have a net _____ positive charge, which derives from their ______ residues, and interact with DNA because of its net _______ charge. a. negative, ...
Saturday, July 22, 2006 at 12:39pm by sara

AP BIOLOGY LAB
The objective of the lab is to see what is needed for photosynthesis to occur. Curvette 2 has everything we think it needs except light. So it is testing if light is necessary. Curvette 3 has everything we think is needed, so we are testing to see if that is true. Curvette ...
Sunday, November 2, 2008 at 7:12pm by Sue

general chemistry College
Which of the following mixture would be most likely to produce carbon dioxide? Explain Why? a. magnesium and nitric acid: Mg+ HNO3 b. sodium carbonate and sufuricacid: Na2CO3+H2SO4 c. H2O+ Cu
Wednesday, February 27, 2013 at 11:05pm by Donna

Chemistry
Estimate the standard heat of formation of one of the basic buildin block of life, the amine acid glycine. (a) NH3 (b) H2O (C) H2O2 D(NÎN)=944; D(H-H)=436; D(OÎO)=498; D(O-O)= 142; D(N-N)=391; D(O-H)=464
Wednesday, March 14, 2012 at 12:00am by VybzMachine

Biochemistry
What type of interaction would most likely form in a tertiary structure of a protein? Lysine Tyrosine Asparagine Leucine Glutamic Acid Threonine Isoleucine Methionine I don't understand this at all. Much help is greatly appreciated.
Wednesday, September 14, 2011 at 7:12pm by Tommy

Chemistry
Not sure of my answers, pls help me out. I have to indicate the kinds of intermolecular forces that occur between the solute and the solvent in which the molecule is most soluble. a) glucose b) naphthalene c) dimethyl ether d) alanine (an amino acid)
Friday, September 9, 2011 at 10:05pm by tina

Chemistry
Select everything on the list below that is composed of atoms. a. water b. can of soda pop c. computer you are using d. your textbook e. an orange f. bottle of drain cleaner g. flask of hydrochloric acid would the answer be all of the above?
Wednesday, February 2, 2011 at 10:33pm by Gabe

Chemistry
Calculate the molarity of an aqueous NaOH soultion if 32.00ml of it is required to titrate. 0.6789 g of oxalic acid to phenolphthalein end point. The balanced chemical equation is H2C2O4 + 2NaOH-> Na2C2O4 + 2H2O
Monday, December 6, 2010 at 6:16pm by Sonya

acids and alkalis
This site is rubbish it just keeps saying the same thing all the time i hate it i dont even think these answers are right !!!! And shampoo isnt a acid cuz it wud burn ya head
Saturday, November 4, 2006 at 5:56am by Tasha

SCI 275
i need help I am having trouble finding this info. Issue Sources Health/Environmental Effects Carbon dioxide (CO2) Chlorofluorocarbons (CFCs) Ground-level ozone (O3) Sulfuric acid (H2SO4)
Monday, November 26, 2007 at 11:18pm by dawn

Biology
You have not said what grade you are. I'll answer the first part last. pH scale is simple numerical means of assessing how acidic a solution might be. The concentration of acid (more correctly the hydrogen ion concentration) can cover a range from 0.1 mole per litre down ...
Friday, November 21, 2008 at 8:55am by Dr Russ

AP Chemistry
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 5.0 M HCI is required to react completely with 3.00 g of magnesium?
Sunday, November 8, 2009 at 12:39pm by Angel

organic
Thank you for clarifying! Obviously this is NOT my area of expertise! Try the following, please: 1. (Wikipedia): http://en.wikipedia.org/wiki/Amino_acid 2. (part II of #1); http://en.wikipedia.org/wiki/Alpha-amino-acid_esterase 3. http://medical-dictionary.thefreedictionary....
Thursday, November 20, 2008 at 12:00pm by SraJMcGin

chemistry
Which of the following is true of a substance with a pH of 11.0? A. The substance is an acid. B. The substance is a base. C. The substance is neutral. D. The substance is a transition metal. I think A
Saturday, November 10, 2012 at 3:28pm by Keri

chemistry
What is the carbonate-ion, CO3-2, concentration in a 0.037 M carbonic acid solution? a. 1.2 ´ 10-4 b. 4.2 ´ 10-7 c. 7.6 ´ 10-8 d. 4.8 ´ 10-11 e. 5.2 ´ 10-19
Friday, May 14, 2010 at 3:45am by iby

oops----Chemistry
Just a minor correction about the 1/2. That is ALWAYS 1/2 of the molarity IF THE CONCN IS THE SAME and IF THE ACID AND BASE HAVE A 1:1 RATIO. That is, for HCl + NaOH (both monoprotic) or H2SO4 + Ca(OH)2 (both diprotic) etc.
Wednesday, April 24, 2013 at 1:02am by DrBob222

Chemistry
Zinc metal reacts with hydrochloric acid according to the following equation: Zn + 2HCl yields ZnCl2 + H2. How many grams of hydrogen gas can be obtained if 50.0 g of zinc react completely?
Monday, March 11, 2013 at 1:41pm by Raymond

organic chem
Amide formation: draw the structure (or provide the IUPAC name) of the amide formed (appropriate coupling reagent required) between benzoic acid and N-ethyl ethanamine (diethyl amine)
Monday, March 4, 2013 at 7:04pm by meghan

chemistry
Given the reaction: H2SO4 = 2NaOH -> NaSO4 = 2H20. Determine the # of moles of sulfuric acid id needed to completely react with 2.3 L of 0.5 M of NaOH. Then determine the concentration of the solution if 3.0 L of it are used instead.
Sunday, November 4, 2012 at 7:49pm by sarah

chemistry
A volume of 40.0 of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid h2so4. What was the molarity of the solution if 20.02 of 1.50M h2s04 was needed? Who helps me to solve it for me.
Tuesday, July 31, 2012 at 11:44pm by Fai

Chemistry
When you use UV Vis to determine the purity of the product- how does knowing the amount of salicylic acid help? Do you only use this when you know (after adding Fe3+) that the aspirin isn't pure? I know there is a very simple answer to this question...
Saturday, June 9, 2012 at 1:54am by mish

chemistry
Carbonates react with acids to form a salt, water and carbon dioxide gas. When 25.4 g of calcium carbonate are reacted with sufficient hydrochloric acid, how many grams of calcium chloride will be produced?
Wednesday, April 25, 2012 at 4:49pm by Lau ra

College Chemistry
Calculate the concentrations of the following solutions, assuming the volumes are exact measurements: a. 18.64g of sodium hydroxide in 350mL of solution b. 8.97mL of 18M hydrochloric acid in 250mL of solution
Tuesday, October 4, 2011 at 2:50pm by Bekah

biology
I need to describe the processes of fatty acid oxidation and synthesis in animal tissues, pointing out their similarities and differences. Please! I dont need an answer that is just copied and pasted from another website... Thanks,
Monday, September 5, 2011 at 8:12pm by steve

chemistry help plzzz
how can i calculate the pH of the solution obtained when 50.00mL of 0.150mol/L hydrochloric acid is added to 75mL of a 0.111 mol/L aqueous sodium hydroxide solution. need help i am stuck with that question thank you :)
Friday, December 24, 2010 at 5:19pm by tarkan

chemistry
The water is being added to benzhydrol, propanol and sulfuric acid which is the catalyst in a separatory funnel after the reaction mixture is heated at refulx for 25 minutes. It is an SN2 reaction so the solvent is THF
Wednesday, October 20, 2010 at 5:15pm by noell

chemistry
a) show a balanced neutralization reaction for each. b) Determine how many moles of base are needed to neutralize 2 mles of acid of these reactions. Can you show me the work,using the mole ratio ?? HNO3 + KOH -- H2SO4 + NaOH --
Monday, August 16, 2010 at 5:04pm by Kelsey

Chemistry
A 30.00ml sample of 0.1234 M hypobromous acid (HBrO) is titrated with a 0.2555 M KOH solution. The Ka for HBrO is 2.5*10^-9 Calculate the pH of teh titration mixture at the equivalence point.
Saturday, April 17, 2010 at 11:28am by Anonymous

Chemistry
Sorry I accidently hit enter and it posted my question before I was finished... What are the major organic products of this reaction: CH3CH2CH2COCH2CH3 (an O is double bonded to the C before the O) + H2O --> (acid is above the arrow)
Sunday, March 21, 2010 at 8:23pm by Bobby

Organic Chemistry
Is a carboxylic acid group electron donating or election withdrawing and then decide if such a group substituted onto an alkene would be a better candidate for cationic or anionic initiated polymerization?
Thursday, November 12, 2009 at 8:32pm by Ryan

chemistry
Fumaric acid, which occurs in many plants, contains, by mass, 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen. A 0.050-mol sample of this compound weighs 5.80 g. The molecular formula of this compound is
Tuesday, October 6, 2009 at 4:43pm by Tierney

acidity of functional groups
can some1 please tell rank for me from most acidic to least acidic? thank you. carboxylic acid ester amide nitrile aldehyde ketone phenol alcohol amine anhydride
Saturday, May 16, 2009 at 12:10am by stephanie

Ochemistry
Phenols are acidic (the H of the OH attached to the ring) is labile so its the same as a neutralization reaction in inorganic chemistry. acid + base = salt + water. 4-chlorophenol + NaOH ==>(4-chlorophenolate, Na salt) + H2O.
Tuesday, January 13, 2009 at 2:48pm by DrBob222

12 Biology--THIS IS URGENT
In relation to a work sheet on translation and transcription: If you worked backward, starting with the amino acid sequence of the protein, would you obtain the same DNA nucleotide sequence? Why or why not? THANKS!!!
Sunday, April 13, 2008 at 3:36pm by Miley Cyrus

Chemistry
If the unknown tri protic acid has an equivalent weight of 46.79 g/equiv, its average molecular weight is ?g/mol and ?g would be required to make 100.00 mL of a 1.50 N solution.
Wednesday, April 2, 2008 at 6:20pm by mia

Chemistry
Find the pH and pOH of a solution that is 1.04x10^-4 M HCl. Do i have to use an ice table to solve this? or is there a short cut? please help No. HCl is a strong acid (100% ionized), so the H^+ concentration is 1.04 x 10^-4 M.
Wednesday, July 4, 2007 at 10:23pm by T

Chemistry
Suppose that 30.0 mL of 0.20 M C6H5COOH(aq) is titrated with 0.30 M KOH(aq) (a) What is the initial pH of the 0.20 M C6H5COOH(aq)? (b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? (c) What volume of 0.30 M KOH(aq) is required to reach halfway to the ...
Thursday, October 4, 2012 at 3:09am by DrBob222

Chemistry
What volume of a 0.22mol/L hydrochloric acid solution is needed to cause the pH of 25.00mL of a 0.15mol/L lithium hydroxide solution to have a pH that s equal to 7.00
Saturday, February 16, 2013 at 9:42pm by Amy

Chemistry
15. 120 g of sulfuric acid are added to 230.0 g of barium peroxide. Which reactant is in excess and by how much? How much barium sulfate is precipitated in this reaction???? HELP please
Thursday, December 13, 2012 at 7:26pm by John

Chemistry
How many grams of aluminum chloride are produced when 18 g of aluminum are reacted with an excess of hydrochloric acid? 2AL(s) + 6HCl(aq) ---> 2AlCl3(aq) + 3H2(g)
Monday, November 26, 2012 at 11:06pm by Student09

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?
Sunday, October 28, 2012 at 5:40pm by Jas

Chemistry
Calcium carbonate can be used as an antacid to treat excess stomach acidity. What type of substance is calcium carbonate? a. base b. reducing agent c. acid d. buffer
Tuesday, October 23, 2012 at 7:07pm by Anonymous

chemistry
How many grams of hydrogen can be prepared by treating 2.63 g of iron with 130.0 mL of 1.50 M sulfuric acid solution, to give iron(III) sulfate and hydrogen?
Sunday, September 30, 2012 at 9:55pm by sarah

Chemistry Acid Question Ka
Nevermind I figured it out, With the equation Ka = x^2 / 0.0165 - x x = [H+] I forgot to do the 0.0165-x in my original calculation, but after doing that I got the correct answer.
Sunday, April 22, 2012 at 10:52pm by RZeal

chemistry
Write the order given in the problem, then reverse for the order of the conjugate bases. For example, HCl is a STRONG acid; therefore, the Cl^- is a WEAK conjugate base.
Saturday, March 17, 2012 at 7:29pm by DrBob222

Orgo
Thank you I was able to work it out: it's a 1:1 ratio so since 5.5g chlorophenol is .043 mols, nitric acid must be .043 mols as well. V(1.20M) = .043mol V= .036L
Friday, February 24, 2012 at 11:21am by Sam

Physical Science
How do you write the chemical equation for neutralization of nitric acid, HNO3, with magnesium hydroxide, Mg (OH)2, first with spectator ions and then without spectator ions?
Monday, February 20, 2012 at 9:38pm by Holly

science
A molecule that contains all the information a cell needs to make protein: a) ATP b) carbohydrate c) lipid d) protein e) philosophic f) nucleic acid
Thursday, January 19, 2012 at 2:28am by kk-gothgirl-kk

Chemistry
monochloroacetic acid is HA. ...............HA ==> H^+ + A^- initial.......0.22....0......0 change.........-x.....x.......x equil.......0.22-x....x.......x Substitute into the expression for Ka and solve for H^+, then convert to pH.
Wednesday, November 23, 2011 at 7:08pm by DrBob222

science(chemistry)
why sodium carbonate against hydrochloric acid titration using phenolphthalein indicator does not go to completion but stops at the sodium hydrogen carbonate stage.
Monday, November 21, 2011 at 6:14am by yussif

algebra
a scientist has a 25% acid solution.how many liters of each does the scientist need to make 15L of a solution that is 28%.write a system of equations and solve using any method.
Thursday, November 10, 2011 at 12:48am by geena

biochemistry
What is name of reagent containing 0.6 M Sulphuric acid, 28 mM sodium phosphate, and 4 mM ammonium molybdate? and in which amount it should be taken to make a reagent?
Tuesday, October 25, 2011 at 3:48pm by rashu

chemistry
400 cm3 of 0.5mol/dm3 hydrochloric acid was reacted with 5g of magnesium oxide. Calculate the mass of reacted oxide? Show the steps and thq..
Thursday, February 17, 2011 at 10:23am by vigor

Chemistry
H2O ==> H^+ + OH^- Kw = (H+)(OH^-) = 1 x 10^14 Since HCl is a strong acid and ionizes 100%. substitute the HCl concn for H^+ in the Kw expression and solve for OH^-
Tuesday, February 15, 2011 at 9:25pm by DrBob222

science
What is name of reagent containing 0.6 M Sulphuric acid, 28 mM sodium phosphate, and 4 mM ammonium molybdate? and in which amount it should be taken to make a reagent?
Friday, January 21, 2011 at 2:00am by shraddha

chemistry
If you had walked into the lab, only to discover that you only had 0.1 M sulfuric acid available to run your tests, how might this have affected your calculations? Why?
Thursday, December 30, 2010 at 4:11pm by NELL

Chemistry
WHAT IS THE BOILING POINT OF THIS SOLUTION? 1.00x10^2g C10,H8,O6,S2 (1,5-naphthalenedisulfonic acid) in 1.00x10^2g H2O (nonionizing solute)
Tuesday, December 7, 2010 at 2:31pm by Jose Reyes

Chemistry
Write the word equations below as chemical equations and balance. copper + sulfuric acid yield copper(II) sulfate+ water + sulfur dioxide
Wednesday, December 1, 2010 at 8:27pm by Pedro

chemistry
so the henderson eqn is: pH= pKa +log([conj. base]/[acid]) so do i have to look up pKa for NaOH and then how do i find the conjugate base concentration?
Monday, July 12, 2010 at 4:33am by Tokey

Chemistry
How do i write the equation betwen ethanoic acid CH3COOH and urea (NH2)2CO? I think they form carbondioxide and an ammonium salt, but how do i write the actual equation?
Sunday, March 21, 2010 at 1:12am by Hallie

science
Sulfur trioxide dissolves in water, producing H2SO4. How much sulfuric acid can be produced from 12.1 mL of water (d=1.00g/mL) and 22.1 g of SO3?
Thursday, October 8, 2009 at 10:07pm by Jon

Chemistry
Sulfur trioxide dissolves in water, producing H2SO4. How much sulfuric acid can be produced from 12.1 mL of water (d=1.00g/mL) and 22.1 g of SO3?
Thursday, October 8, 2009 at 10:06pm by Jon

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?
Monday, May 25, 2009 at 3:53pm by jackie

organic chemistry
Write a mechanism to illustrate what will happen if the addition of bromine to trans-cinnamic acid is syn; what do you expect the melting point of the syn addition product to be?
Tuesday, April 21, 2009 at 3:19pm by janet

organic chemistry
Both are carboxylic acids so it will difficult to predict the Rf. The mefenamic acid also has an amine group. This will also make the Rf pH dependent.
Saturday, December 27, 2008 at 11:08am by DrRuss

acid-base titrations
b won't make a difference. One more of those listed won't make a difference. The others will. The problem asks you, not if they will be affected, but if the results will be high or low.
Monday, April 21, 2008 at 10:22pm by DrBob222

chemistry
When the following reaction is balanced in acid solution, the coefficient of H+(aq) will be: Cr2O72-(aq) + Sn2+(aq) --> Cr3+(aq) + Sn4+(aq)
Thursday, March 22, 2012 at 10:02pm by Becca

chemistry
an acid and a base. metallic oxide + non-metallic oxide.
Friday, November 11, 2011 at 3:25pm by DrBob222

anonymous
lactic acid added with potassium bicarbonate and sodium bicarbonate
Wednesday, March 16, 2011 at 10:10am by Anonymous

Chemistry
What metal? You dont want an active metal, or it will react with the water. I remember a college professor that submerged Magnesium and wondered what the bubbles forming were. Duh. Yes, I would use slighly cooled room temp water (room water with one ice cube added, remove the ...
Friday, February 19, 2010 at 8:06pm by bobpursley

math
this problem is given me very much difficulty because of the set up and what to do. can someone assit me if you have a few minutes. thanks. Income. A baker has 250 units of flour, 90 of sugar, and 150 of raisins. A loaf of raisin bread requires 1 unit of flour, 1 of sugar, and...
Thursday, June 14, 2007 at 5:57pm by student

BIOLOGY
A SALT IS OBTAINED AS A REACTION BETWEEN A SALT (and water) IS OBTAINED AS A REACTION BETWEEN a base and an acid. See: http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/acidbase.html http://lrs.ed.uiuc.edu/students/erlinger/water/background/ph.html I hope this helps. Thanks ...
Saturday, September 30, 2006 at 12:29pm by CAROLINE

Chemistry-pls help urgent
Posted by candy on Tuesday, October 12, 2010 at 5:04pm. 1) How do I prepare 2M nitric acid from 65% concentrated nitric acid? 2) How do I prepare 17% ammonia from 25% concentrated ammonia? Please show calculation steps. Thanks. Chemistry -pls help urgent - DrBob222, Tuesday, ...
Tuesday, October 12, 2010 at 5:52pm by candy

Biochemistry
I caution you that m means molality. M means molarity. I assume you meant M. Use the Henderson-Hasselbalch equation. a = acid; b = base. pH = pKa + log(b/a) 4.5 = 4.75 + log b/a solve for b/a and I get approximately 0.6 (you should do it more accurately). You have two ...
Tuesday, August 2, 2011 at 4:25am by DrBob222

Music
Doesn't Louis Armstrong begins "West End Blues" with a stop time? You might try browsing these 2 links: http://www.google.com/search?as_q=Armstrong+%22stop+time%22+%22West+End+Blues%22+starts&hl=en&num=10&btnG=Google+Search&as_epq=&as_oq=&...
Saturday, December 2, 2006 at 2:29am by Mariah

Chemistry
From your experience, predict which of the following reactions are spontaneous. a) Zn(s) + 2H+(aq)--> Zn+2(aq) + H2 (g) b) CaCO3(s) + 2H2O(l) --> Ca(OH)2(s) + H2CO3(aq) c) CH4(g) + O2(g) --> CO2(g) + 2H2O(g) d) Ag+(aq) + Cl-(aq) --> AgCl (s) Our ...
Wednesday, February 14, 2007 at 7:27pm by Chris

Chem I
(HClO4) = 14.8M x (5 mL/1000) = ?? HClO4 is a strong acid. It ionizes 100%; therefore, (H^+) = (ClO4^-) = (HClO4^-) Convert H^+ to pH, then to pOH, then to OH^- and that's it. (unless I missed an ion somewhere).
Monday, November 15, 2010 at 10:17pm by DrBob222

Organic Chemistry
I just want to check if I am correct on this Q: What is the major product formed when 1-butene reacts with water in the presence of dilute sulphuric acid? a) 1-butanol b) 2-butanol c) butane d) 1-methylpropanol I "think" that it "should" be "B" (2...
Sunday, February 24, 2008 at 2:23pm by K

lab report
See if any of the following links will help you: http://www.google.com/search?q=why+not+distill+off+all+the+solvent+first+then+separate+the+solid+residue+of+benzoin+and+benzoic+acid+by+recrystallization+&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&...
Saturday, November 12, 2011 at 9:24pm by SraJMcGin

Chemistry
3. Which oxidation-reduction reactions are best balanced by the half-reaction method? A.) covalent reactions *B.)acid-base reactions C.) ionic reactions D.) intermolecular reactions Thank you.
Saturday, March 23, 2013 at 9:50am by Anonymous

English
I urgently need you to revise these sentences, too. I made some variations, but I have to be sure that everything is OK. I don't know if sentence 1 can make sense. 1) Two philosophical positions, which remain unreconciled in Hamlet's monologue, are expressed in the ...
Sunday, November 20, 2011 at 3:59pm by Henry1

Chem 100L
Calculate the molarity of an aqueous NaOH solution if 32.00ml of it is required to titrate .6789g of oxalic acid to a phenophthalein end-point. the balanced chemical equation is H2C2O4 + 2NaOH ---> Na2C2O4 + 2H2O
Sunday, December 2, 2012 at 3:40pm by Tammytha

Grammer
It is not surprising that polar bears in the north are decreasing in population. Notably, glacial deterioration from global warming was a major source. Similarly, acid precipitations caused by poor industrial production also impinged on the environment. is that better?
Wednesday, February 15, 2012 at 6:47pm by Pria

Chemistry
calculate the concentration of sodium benzoate that must be present in a 2.0M solution of benzoic acid (C6H5COOH) to produce a pH of 4.00. THIS IS THE ONLY INFORMATION GIVEN. I CANNOT FIND Kb ANY WHERE IN MY TEXT NOR DOES IT GIVE US A VOLUME. CAN ANYONE HELP?
Thursday, May 27, 2010 at 12:43am by Lucinda

Chemistry
Could you help me with these Directions: Either it's a carboyhdrate, lipid, protein, nucleic acid It's monomers contain NH2 amd COOH groups Controls cell reproduction and activities Ratio of hydrogen to oxygen is 2:1 Is held together with peptide bonds
Wednesday, February 4, 2009 at 9:54pm by Kimy

CHEMISTRY PLZ HELP
I'm confused by the question but if I interpret it correctly, the answers are propionic acid and OF2. CH3Cl has all orbitals filled, as does Br2, ethene, and ethyne so I don't think the latter ones have an acceptor atom. Check my thinking.
Saturday, January 24, 2009 at 10:38pm by DrBob222

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