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September 17, 2014

Search: potassium permanganate reacts with oxalic acid h2c204

Number of results: 8,871

general, organic and biochemistry
when a solution prepared by dissolving 4.00g of an unknown monoprotic acid in 1.00L of water is titrated with 0.600M NaOH, 38.7mL of the NaOH solution is needed to neutralize the acid. What was the molarity of the acid solution? what is the molecular weight of the unknown acid?
November 23, 2010 by Ksolo

chemistry
the following titration data were collected: a 10 mL portion of a unknown monoprotic acid solution was titrated with 1.12340 M NaOH and required 23.95 mL of the base solution for neutralization. calculate the molarity of the acid solution calculate the molarity of the acid ...
October 25, 2011 by Doss

Chemistry
Part A: Unknown Acid use 1gram and mix with 120 mL of distilled water Determine the concentration of the acid by titrating with 0.0998 M of NaOH Concentration of NaOH= 0.0998M Volume of NaOH= 3.5 mL # moles of NaOH= Initial Concentration of Weak Acid- Show Calculation of Ka ...
March 24, 2010 by Saira

chemistry
in 1807 the English chemist Humphrey Davy passed an electric current through molten potassium hydroxide and isolated a bright, shiny reactive substance. He claimed the discovery of a new element, which he names potassium. In those days, before the advent of modern instruments...
May 21, 2011 by kimberly

Chemistry
A buffer is made up of .300 L each of .500 M KH2PO4 and .317 M K2HPO4. Assuming tha the volumes are additive, calculate a) the pH of the buffer b) the pH of the bugger after the addition of .0500 mol of HCl to .600 L of the buffer. c) the pH of the buffer after the addition of...
May 1, 2007 by James

Chemistry
A 0.528 gram sample of a metal, M, reacts completely with sulfuric acid according to: M+H2SO4 -> MSO4+H2 A volume of 205 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and...
October 16, 2012 by Bill

Bio Chem
The pKa of propanoic acid (propionic acid), CH3CH2COOH, is 4.87. Consider an equilibrium mixture of propanoic acid and its conjugate base with a pH of 4.87. Draw the structure of the form (acid or conjugate base) that predominates after a decrease in [H3O ]. Include all ...
September 16, 2014 by Cristy

Chemistry
The pH of a weak monoprotic acid, HA, is 4.55. It took 39.22 ml of 0.2334 M NaOH to titrate 25.00 ml of the acid. a. Write an equation for the above reaction. b. Calculate the molarity of the weak acid c. Write the equilibrium equation. Construct a table showing initial ...
April 9, 2011 by Cassie

Math in Science
A rock containing a newly discovered fossil is found to contain 5 mg of an unstable form of potassium and 5 mg of the stable element formed from its decay. If the half-life of the unstable form of potassium is 1.3 billion years, how old is the rock? What can you infer about ...
November 7, 2013 by Janey

chemistry
An acid HA has Ka = 2.28 x 10 -4. The % ionisation of this acid in a 0.170 M solution of the acid in water is closest to 3.662 % 0.623 % 0.498 % 2.930 % 0.436 % 2.564 % i have an exam in 1 week and these are the types of questions i dont understand
May 27, 2010 by Lucinda

Chemistry
One of the substances that give wet goats and dirty gym socks their characteristic odors is hexanoic acid, CH3CH2CH2CH2CH2CO2H, which is a monoprotic weak acid. (a) Write the formula for the conjugate base of this acid.
June 9, 2012 by Jamie

Chemistry
how many grams of potassium iodide can be produced by the reaction of 150 grams of iodide and 45.6 grams of potassium?
February 6, 2014 by Ben

Chemistry-help needed
0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....
March 9, 2011 by candy

chemistry - help
0.3g of clotrimazole (C22H17ClN2) was dissolved in 80ml of anhydrous acetic acid. This was titrated with 0.1M perchloric acid using 0.3ml of naphtholbenzein as indicator until the colour changes from brownish-yellow to green. 1ml of 0.1M perchloric acid is equivalent to 34....
March 28, 2011 by candy

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
March 8, 2008 by John

Chemistry
(a) Explain what is meant by a weak acid. Methanoic acid (HCO2H) has a numerical value of Ka(T) at 298K of 1.60 × 10-4 (b) Write an expression for Ka(T) of methanoic acid, and state its units. (c) What is the pH value of a 0.10 mol dm-3 aqueous solution of methanoic acid? Give...
April 22, 2012 by Henry

Chemistry
How many grams of calcium carbonate, CaCO3, do you need in an antacid tablet to neutralize 20 mL of stomach acid? (stomach acid is 0.1 M HCl. There are 3.65g of HCl in 1L of stomach acid or 1g of HCl in 274g of stomach acid).
November 13, 2012 by Marie

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
September 27, 2009 by Telicia

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
September 29, 2009 by Telicia

Chemistry
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen: 4KNO3(s)--> 2K2O(s) + 2N2(g) + 5O2(g) To produce 56.6 kg of oxygen, how many (a) moles of KNO3 must be heated? (b) Grams of KNO3 must must heated?
June 17, 2012 by B

chem (science)
Which of the following pairs of elements are likely to form ionic compounds: A) helium and oxygen B) magnesium and chlorine C) chlorine and bromine D) potassium and sulfur E) sodium and potassium F) nitrogen and oxygen I believe the answer is d and f Would appreciate a ...
September 18, 2011 by jake

Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go about solving this? I ...
October 22, 2012 by Sam

Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go about solving this? I ...
October 22, 2012 by Sam

Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go about solving this? I ...
October 22, 2012 by Sam

chemistry
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 17.65 mL to reach a phenolphthalein end point. What is the molarity of...
April 4, 2013 by Ashley

Chemistry
A solution of the primary standard potassium hydrogen phthalate, KHC8H4O4, was prepared by dissolving 0.4877 g of potassium hydrogen phthalate in about 50 mL of water. Titration with a KOH solution required 24.71 mL to reach a phenolphthalein end point. What is the molarity of...
June 6, 2014 by Katie

Chemistry
Tartaric acid has two acidic (ionizable) hydrogens. The acid is often present in wines and precipitates from solution as wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 22.62 mL of 0.2000 M NaOH solution of titrate both ...
October 10, 2011 by Destiny

Organic chemistry
the pka of benzoic acid is 4.2. show mathematically that this acid is 50% ionized. Use results of part a t oexplain why precipitation is incomplete if the pH of an aquesous solution of benzoate ion is lowered only to ph 7 by adding acid. Thank you
September 28, 2010 by ZC

chemistry
the chemical equation of nicotinic acid is C5H4NCOOH + NaOH --> C5H4NCOONa + H2O i need to calculate the intial molar concentration of this acid, based on the ratio in which the acid and base react. Please help i cant figure it out,
January 14, 2013 by lisa

Chemistry
The explosive residue contains carbon, hydrogen and nitrogen where the percentage of nitrogen is high, calculate it from 0.5g of residue which eliminates ammonia gas on reaction with sodium hydroxide, and absorb by 50mL of Nby10 H2SO4. Unused acid is neutralized/titrated with ...
March 12, 2012 by Farah

chemistry
The formula weight of an acid is 82. In a titration, 100cm3 of the solution of this acid containing 39g of this acid per litre were completely neutralized by 95 cm3 of aqueous naoh containing 40g of naoh per litre. What is the basicity of this acid? Bob helps me
March 10, 2013 by Fai

chemistry (acid-ionization constant)
A 0.942 M sample of carbonic acid, H2CO3, has a measured hydronium ion concentration of 6.36 ´ 10–4 M. Calculate the acid-ionization constant of carbonic acid. The equilibrium equation is: H2CO3(aq) + H2O(l) <--><--> H3O+(aq) + HCO-3(aq)
August 9, 2010 by Lily

chemistry
A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.642 g. Write an equation for the reaction and, assuming that all the chlorate decomposed, calculate the ...
October 3, 2011 by Mohammed

chemistry
A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.202 g. Write an equation for the reaction and, assuming that all the chlorate decomposed, calculate the ...
February 13, 2013 by memo

Chemistry
It says 8. In a similar experiment Mary Moreorlesss was to determine the loss of weight when a crucible of potassium chlorate was heated to drive off the oxygen. After finishing the experiment she concluded the potassium chlorate contained 24.0% oxygen. Why did miraculous(...
February 6, 2014 by Samantha

Chemistry
Assignment  Calculate the pH, pOH, [H+], and [OH] for each of the following solutions. Show all work. (10 Points) Solution Composition of Starting Materials 1 0.10 M acetic acid 2. 5 mL 0.10 M acetic acid + 5 mL wa 3 1 mL 0.10 M acetic acid + 99 mL water 4 5 mL...
October 11, 2010 by Brian

math
How much pure acid should be mixed with 3 gallons of a 50% acid solution in order to get an 80% acid solution? The %'s always throw me off.
September 11, 2008 by Pat Stout

Chemistry
When diluting a weak acid and a strong acid, why is it that the pH changes more significantly in the strong acid? (consider the equilibrium occurring) With HCl
March 13, 2010 by Anonymous

chem
An equivalent weight of an acid is the mass of the acid needed to deliver 1 mole of . The of an acid solution is the number of equivalents of in 1 liter of solution.
April 14, 2012 by Anonymous

Chemistry Acid Question Ka
Enough of a monoprotic acid is dissolved in water to produce a 0.0165 M solution. The pH of the resulting solution is 2.38. Calculate the Ka for the acid.
April 22, 2012 by RZeal

meghan
Draw and name the product obtained in the following acid-base reactions: 1. 2-isopropylpentanoic acid + NaOH 2. 2-isopropylpentanoic acid + NH3
February 19, 2013 by organic chemistry

chemistry
340. mL of hydrochloric acid (HCl) acid is exactly neutralized with 500. mL 0.700 M NaOH solution. What is the concentration of the acid solution?
June 1, 2014 by Anonymous

Algebra 2
How much pure acid must be added to 6 milliliters of a 5% acid solution to produce a 40% acid solution? Please Show All Work!
October 18, 2009 by Trisan

acid vs base
Calculate the pH of a solution that obtained by diluting 0.015 mol acetic acid with water to 250 cm3 (the Ka - value for acetic acid is 1.74 x 10-5 M).
February 18, 2011 by Anonymous

Chemistry
Concentrated hydrochloric acid has a purity of 36.0% by mass. The density of the concentrated of the acid is 1.19 g/mL.Determine the molar concentration of this acid..please show me the solution...
July 5, 2014 by Syam

Chemistry
Commercial hydrobromic acid can be purchased as 40.0 % by mass 9f HBr. The density of this acid is 1.38 g m/L. Calculate the molality of this commercial acid..please show me the solution..thanks
July 5, 2014 by Syam

Chemistry
Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 10.00 mL of glacial acetic acid at 25°C in enough water to make 150.0 mL of solution.
February 17, 2010 by Mindy

Chemistry 122
A solution is prepared to be 0.10 M acetic acid, HC2H3O2, and 0.20 M sodium acetate, NaC2H3O2. What is the pH of this buffer? Ka for acetic acid is 1.7 x 10^-5. What is the pH after 9.5 mL of 0.10 M hydrochloric acid is added?
November 22, 2010 by Marlynda

chemistry
Predict the the product for the following reactions. zinc + hydrochloric acid sulfuric acid + sodium hydroxide sodium + hydrogen acetic acid + coppper
December 5, 2010 by Amanda

science
NaOH is treated with an organic acid. Normality=0.2N Volume= 45.7 cubic centimeter mass of organic acid= 0.22 give name and strutural formula of the acid
July 2, 2014 by Wania

Chemistry
Given a 2.5 kg solution of phosphoric acid and water (56 % phophoric acid, by mass), calculate the number of moles of phosphoric acid.
October 18, 2010 by Emily

Algebra 1
Bunson Burner has 3 liters of a 10% acid solution. How much of pure acid must be added to produce a 50% acid solution?
March 28, 2011 by Cassidy

chemistry
Lactic acid is a weak monoprotic acid. If a 0.10 M solution of it has a pH of 2.44, what is the dissociation constant (Ka) for lactic acid. I got 1.3x10^-4? Is that right?
October 3, 2011 by person

Chemistry
Arsenic acid has the formula H^3AsO^4. It is a triprotic acid. Abottle is marked 0.422 N arsenic acid. What is the Molarity of this solution?
April 27, 2013 by naomi

chemistry
For each of the following chemical reactions: a.)classify the reaction as combination, decomposition,single replacement, or double replacement. b.)complete the word equation. c.)using the formulas for both reactants and products, balance the chemical equation. 1. tin(IV)...
September 23, 2008 by Yeah

Chemistry
Explain why acetic acid has four hydrogens, but is a monoprotic acid The formula for acetic acid is CH3COOH so yes it does have four hydrogens. But the only hydrogen that is able to easily come off and be donated to another molecule is the H from COOH and thus it is a ...
April 1, 2007 by John

chemistry
Lactic acid, CH 3 CHOHCO 2 H, is found in sour milk, in sauerkraut, and in muscles after activity. K a for lactic acid = 1.4 x 10 -4 . a. If 2.75 g of NaCH 3 CHOHCO 2 , sodium lactate, is added to 5.00 x 10 2 mL of 0.100 M lactic acid, what is the pH of the resulting buffer ...
April 23, 2014 by Anonymous

Chemistry
I need to be able to tie in acetic acid and boric acid. To decipher properties of acid-base chemistry and how they adhere to Le Chatelier’s principle. I appreciate any input....
November 30, 2010 by Colleen

Chemistry
Calculate the theoretical pH at the starting point and at each equivalence point for phosphoric acid, acetic acid, and sulfuric acid. Please show the equilibrium equation, the Ka, and the pH calculation.
December 12, 2011 by Shana

Chemistry
Calculate the molarity of Formic acid in a solution containing 44g of Formica acid in 470 g of nitrobenzene. The molar mass of Formica acid is 36g/mol
March 1, 2013 by Noga

Chemistry 104
A 0.30M solution of a weak monoprotic acid is 0.41% ionized. what is the acid-ionization constant, Ka for this acid? Use. HA + H2O <==> H3O + A to figure out X for H3O and A
March 12, 2013 by Viv

Chemistry; Please help
Write formulas for the following. 1. potassium hexacyanoferrate(III) 2. sodium hexafluoroaluminate 3. Pentaaquabromomanganese(III) sulfate 4. hexaamminechromium(III) nitrate 5. sodium tetrahydroxochromate(III) 6.trans-dichlorobis(ethylenediamine)cobalt (III) chloride 7....
January 26, 2011 by Sharon

Chem
What is the pH of the resulting solution if 30.00 mL of 0.100M acetic acid is added to 10.00mL of 0.100 M NaOH? For acetic acid, Ka=0.000018. I know that NaOH is a strong base and acetic acid is a weak acid. What is the equation: C6H5COOH+NaOH<--> C6H5COOH Once I get ...
February 27, 2008 by Sarah

CHemistry Please Help. DR. BOBB
Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water. Potassium iodate reacts ...
October 19, 2008 by Sara

SCIENCE/CHEM
the purity of zinc is to be determined by measuring the amount of hydrogen formed when a weighed sample of zinc reacts with an excess of HCL acid.the sample weighs 0.198 grams. what amount of hydrogen gas at STP will be obtained if the zinc is 100% pure? need a metric answer ...
May 12, 2010 by Andy

chemistry
Suppose you were asked to determine the exact acetic acid concentration in an acetic acid solution that was about 50% acid?
November 4, 2010 by Myisha

chemistry
formic acid is a monoprotic acid with a ka at ml solutionof m of formic acid solution is titrated with m naoh what is the ph at the equivalence point
March 29, 2011 by Omar

Chemistry
Benzoic acid (C6H5COOH)is a monoprotic weak acid with Ka=6.30*10^-5. What is the pH of a solution of benzoic acid that is 0.559M and has 2.25*10^-2M NaOH added?
May 8, 2012 by Pippi

chemistry
Given 50 ml of concentrated nitric acid.The density of the concentrated acid is 1.42 g/ml and is 70% HNO3 by wt. Calc. the molality of the conc. acid.
October 16, 2013 by 12

chemistry
Given 50 ml of concentrated nitric acid.The density of the concentrated acid is 1.42 g/ml and is 70% HNO3 by wt. Calc. the molality of the conc. acid.
October 16, 2013 by 12

Math - Alg
How much pure acid must be added to a 30% acid solution to make a 60L solution which is 50% acid?
February 5, 2014 by McKenna Louise

Math - Alg
How much pure acid must be added to a 30% acid solution to make a 60L solution which is 50% acid?
February 6, 2014 by Brittany Jones

12th grade Biology
Q. decribe how it is metabolized and how many ATP are produced from each: a)fructose b)sucrose c)palmitic acid d)glycerol e)alanine f)glutamic acid g)aspartic acid i know that fructose produce 48 atps, sucrode produce 76 atps, palmitic acid produce 96atps glycrol produce 19 ...
November 26, 2008 by Ring

chem
which one of the following statements about sulfuric acid is correct? A. sulfuric acid is a known muriatic acid B. sulfuric acid is a strong oxidizing agent C. sulfuric acid has little effect on metals D. sulfuric acid is dangerous to living organisms B and D are both correct...
August 5, 2005 by alf

Chemistry
Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4– + C2O42– Mn2+ + CO2 MnO4– + Fe2+ Mn2+ + Fe3+ ? The potassium ion is a spectator ion. You have written ionic equations (but omitted the arrows to separate the reactants from the ...
April 29, 2007 by Emi

Chemistry
A chemist wants to be a supercook and wants to create 8%(m/v) acetic acud solution to be "extra strength" vinegar. if pure acetic acid Is a liquid density of 1.049 g/ml. how many ml of acetic acid should be dissolved to male 500 ml of 8% acetic acid? Calculate grams of acetic ...
April 22, 2012 by Kate

chemistry
19 mL of 0.50 mool/L NaOH which is standardized becomes titrated alongside 24 mL of 0.44 mol/L acetic acid. Determine the pH of the solution Please judge my work: Becasue NaOH and acetic acid react in a 1:1 ratio, initital moles of acetic acid =0.0019 L x 0.44M = 0.000836 mols...
April 9, 2008 by Joseph

chemistry
10HI+2KMNO4+3H2SO4-5I2+2MNSO4+K2SO4+8H20 Find the mass of water produced when 300g HI reacts with 30 g KMno4 and excess H2So4. Find the mass of k2So4 produces 30 mL of .250 M KMno4 reacts with 400 mL .100 M HI.
September 25, 2012 by noorie

chemistry
I need to know the structures for the following formulas: hexamethylene diamine (1,6-hexanediamine) sebacoyl chloride (decanedioic acid chloride) ethenylbenzene terephthalic acid (1,4-benzenedicarboxylic acid) thank you so much!!!!
March 17, 2009 by Heather

chemisty
600 mL of an unknown monoprotic acid was titrated with a standard solution of a 1.0 M base. If it took 40.0 mL of the base to neutralize the acid, what was the H+ ion concentration of the acid in moles per Liter?
December 14, 2010 by ana

Chemistry
44.70 ml of 0.100 M NaOH are required to completely neutralize 50.00 ml of a weak monoprotic acid, HA. When 34.43 ml of NaOH are added to another 50.00 ml of the acid, the pH reading was 4.80. Calculate Ka for the acid using the partial neutralization method.
April 9, 2011 by Cassie

AP Chemistry
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.036 moles of sulfuric acid is mixed with water to make 576 mililiter of solution, what is the molarity of H+?
September 30, 2012 by J. A

ion concentration
Which of the following is responsible for maintaining the difference in ion concentration across the membrane of a nerve cell? here are choices the sodium-potassium pump the action potential the depolarization of the membrane the ion channels in the membrane I think it is the ...
November 26, 2006 by alyssa

Psychology
I have to make a diagram of a neuron and label the given parts. I have it all finished except for sodium and potassium. I asked my teacher and he said they go in the action potential. I am not sure which one goes where though. I think the sodium is outside and the potassium is...
September 29, 2008 by Marie

Chemistry
What is the molar concentration of the lead nitrate,potassium iodine,lead iodine,and the potassium nitrate after you mix 10.00mL of 0.200M Pb(NO3) and 30.00mL of 0.100M KI together balance the equation KI+Pb(NO3)2 PbI2+KNO3
December 4, 2013 by Ruffles

Urgent Chem Help
Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in the nicotinic acid has a pH of 3.39 at 25C. what is the acid-ionization constant, Ka and pKa for this acid at 25C? Attempt.. HC6H4NO2 <----> C6H4NO2- + H+ [H...
March 15, 2009 by Saira

Plz -- Chem Help
Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in the nicotinic acid has a pH of 3.39 at 25C. what is the acid-ionization constant, Ka and pKa for this acid at 25C? Attempt.. HC6H4NO2 <----> C6H4NO2- + H+ [H...
March 15, 2009 by Rushi

chem
A solution contains 4.60 g KCl in 179 mL of solution. The density of the KCl solution is 1.11 g/mL What is the percent (m/m) for the potassium chloride solution? What is the molarity, M, for the potassium chloride solution? need help pls
November 8, 2012 by byke

chemistry
determine the volume of stock acid required to prepare 500mL of 0.5mol/L hydrochloric acid. Assume the stock acid is 38% by mass hydrogen chloride and has a density of 1190kg/m3 (1.190g/mL)
May 30, 2010 by sara

Chemistry
Sulfuric acid (H2SO4) is a very diprotic acid. If 0.046 moles of sulfuric acid is mixed with water to make 638 mililiter of solution,what is the molarity of H+? Answer in units of M.
September 23, 2010 by Cheyenne

Chemistry
Ascorbic acid (vitamin C) is a diprotic acid having the formula H2C6H6O6. A sample of a vitamin supplement was analyzed by titrating a 0.3252 g sample dissolved in water with 0.0284 M NaOH. A volume of 13.27 mL of the base was required to completely neutralize the ascorbic ...
February 25, 2014 by Anonymous

Chemistry
Ascorbic acid (vitamin C) is a diprotic acid having the formula H2C6H6O6. A sample of a vitamin supplement was analyzed by titrating a 0.3252 g sample dissolved in water with 0.0284 M NaOH. A volume of 13.27 mL of the base was required to completely neutralize the ascorbic ...
February 25, 2014 by PM

Chemistry
SO3 can be produced in the following two-step process: FeS2 + O2 ---> Fe2O3 + SO2 S02 + O2 ----> SO3 Assuming that all the FeS2 reacts, how many grams of SO3 are produced when 20.0 g of the FeS2 reacts with 16.0 g of O2?
April 28, 2009 by Becky

chemistry
#1)hydrochloric acid is a relatively strong acid . imagine that HCl is added to a buffer solution containing the weak acid phosphoric acid and a salt a)will HCl react with weak acid (H3PO4), or will it react with the salt (Na2HPO4)? b)one product of this reaction will be a new...
August 23, 2011 by sandy

algebra
charlie has 80 ml of a 15% acid solution how much of a 20% acid slolution must be added to create a solution that is 18% acid.
February 22, 2010 by steve

chemistry
A 0.185 M solution of a monoprotic acid has a percent ionization of 1.55%. Determine the acid ionization constant (Ka) for the acid.
April 24, 2012 by cindy

Chemistry
Classify the following 3 acids in order of increasing acidity: Acid 1:Ka = 8 x 10-6
 Acid 2:Ka = 6 x 10-4
 Acid 3:Ka = 9 x 10-11
May 13, 2012 by Andrea

Chemistry
Boric acid is a weak acid with an equilibruim constant(K)of 10-9.3. What is the pH balance of a 0.1 molar solution of boric acid?
October 8, 2012 by Kenneth

chemistry
the Ka for acetic acid, HC2H3O2, is 1.8x10-5 at 25 deg. Celsius. In a .10 M solution of potassium acetate, which of the following are true? I. [HC2H3O2] = [OH-] II. [H+] = [OH-] III. [C2H3O2-] < .10 M a. I only b. II only c. III only d. I and II e. I, II and III What is ...
April 22, 2007 by Anonymous

Chemistry
I am really stuck, I have tried to look these up everywhere and I keep getting different answers. I have to find the balanced equations for: Magnesium + Citric acid Zinc + citric acid Copper + Citric acid Manganese + Citric acid If I can have some help it would be much ...
October 8, 2011 by Franky

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