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September 28, 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: 70,693

Chemistry
what mass of nitrogen dioxide (8NO2) will form by reaction of 3.50 mole of perchloric acid (13HClO4) with excess methylamine (8CH3NH2)? Answer is 99.1 g. How do you work this?
November 6, 2012 by Michelle

Chemistry eq
How many milliliters of 0.430M hydrochloric acid (HCl(aq)) must be added to 15.00mL of 0.682M sodium hydroxide (NaOH(aq)) to reach the equivalence point?
March 27, 2013 by Jaden

Chemistry eq
How many milliliters of 0.430M hydrochloric acid (HCl(aq)) must be added to 15.00mL of 0.682M sodium hydroxide (NaOH(aq)) to reach the equivalence point?
March 27, 2013 by Jaden

Chemistry
Write an equation that represents how dihydrogen phosphate ion (H2PO4-) behaves as an Arrhenius acid. ( Be sure to include the correct charges for ions.)
April 21, 2013 by Michelle

Chemistry
5.2 grams of magnesium metal are place in 400.0 mL of 1.0 M hydrochloric acid. The balanced equation for the reaction is: Mg + 2HCl = MgCl2 + H2. How many moles of H2 gas were produced?
June 9, 2014 by Heidi

chemistry
1.15g of acetylsalicylic ia recovered from an aspirim synthesis reaction that began with 2g of salicylic acid, what would be the percentage yield for the preparation? show your computations
September 1, 2014 by Rogylyn

chemistry
Calculate the volume of NaOH 0.1M that needs to be calculated to be added to a 30ml o-phosphoric acid 0.1 in order to prepare solutions of pH 7.5 and pH 6.9? pKa3= 2.15; pKa2=7.2; pKa1 = 12.1
March 21, 2015 by Adeola

Inorganic chem
What mass of baking soda (NaHCO3) would be required to neutralize 10.00mL of 12.1M muriatic acid remaining in a empty water bottle?
April 16, 2015 by Becca

Dilsuknagar public school chemistry
Calculate the mass ,volume and number of molecules of hydrogen liberated when 198grams of zinc reacts with hydrochloric acid?
June 20, 2015 by meghansh

Chemistry
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined.
September 28, 2016 by Adriana

:):):):)
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 A what do you think?
September 27, 2011 by ciara

Chemistry
How much 0.10 M NaOH (in mL) is required to neutralize 8.00 mL of the 0.10 M HC2H3O2?
May 2, 2010 by John

Chemistry
HC2H3O2 + CH3(CH2)4OH (H2SO4)=?
May 8, 2011 by Sandy

chemistry
For the following reaction at equilibrium, which change would shift the position of equilibrium toward forming more products? (Circle your answer(s) as there may be more than one.) 2NOBr(g) 2NO(g) + Br2(g), ∆Hrxn = +30 kJ/mol A) Decrease the total pressure by ...
March 30, 2016 by maria

chemistry
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g) Data: Mass of vial and zinc 15.5082 mass of vial 15.3972 mass of zinc 0.111 final burette reading 45.30mL barometric pressure: Patm 100.6kPa ...
November 23, 2011 by Yuli

Chemistry
This compound is mescaline, a hallucinogen. Which of the following statements is true? Mescaline is an amine. Mescaline contains an alcohol group. Mescaline is a carboxylic acid. Mescaline is an amine and contains an alcohol group.
March 18, 2014 by amber

college Macroeconomics
consider a country with an economic structure consistent with the assumptions of the classical model. Suppose that businesses in this nation suddenly anticipate higher future proftability from investments they undertake today. explain whether or how this could affect the ...
September 11, 2010 by aimee

chemistry
When 1.0 mol of ammonia gas in injected into a o.50L flask, the following reaction proceeds to equilibrium. 2NH3 <--> N2 (g) + 3H2 (g) At equilibrium, 0.30 mol of hydrogen gas is present. a) calculate the equilibrium concentrations of N2 and Nh3. b) what is the value of ...
November 26, 2006 by Luke

Biology
bio 1003 lab notes baruch Experimental setup 1 contains live, germinating pea seeds. Experimental setup 2 contains germinated then boiled pea seeds. Experimental setup 3 contains dry pea seeds that have not begun to germinate. Experimental setup 4 is a tube of phenol red and ...
September 7, 2009 by Melissa

Chemistry
An unlabeled bottle containing a solution was found in the lab. It contains one of the following: AgNo3, CaCl2, or Al2(SO4)3. Describe how you would test the solution to determine which solution it is. Include equations in your answer.
December 7, 2010 by Abigal

chemistry
What is the concentration of Ag+ remaining in solution? Calculate the following when 0.250 L of 0.249 M AgNO3 solution is mixed with 0.350 L of 0.300 M Na2CO3 solution. Ksp for Ag2CO3 is 8.46E-12. A) What mass of the precipitate forms? I found out the answer: 8.59 g. But I don...
March 31, 2012 by hellp

science
how do i calculate the mols of sulfuric acid ? mols = grams/molar mass
February 7, 2007 by Deon

science
where can i find a wesite with all acid and alkali that you can find round your house?
September 23, 2007 by emily

science
can you give me the name of one acid and one alkali and tell me what they can be used for
January 29, 2008 by Anonymous

Chemistry
What is the solubility in water of salicylic acid at 25 degrees? I can only find it at 20 degrees.
May 25, 2009 by Sam

chemistry
How many moles of acid were present in 50 ml or 1.0M HCl? How many moles of water were produced in this reaction?
April 6, 2010 by Kate

Science
Why is rain normally acidic, what creates acid rain? Also What is SAV? THANKS!!
May 24, 2010 by smiley face

Chemistry
If aluminum hydroxide -Al(OH)3- is an acid, why does it end with hydroxide instead of beginning with hydrogen?
October 22, 2010 by Jennifer

Chemistry
How many moles of dinitrogen pentoxide are needed to produce 1.25 moles of nitric acid?
February 3, 2011 by Brittany

chemistry
if you mix 50ml of 0.1 tris acid with 60ml if 0.2m tris base, what will be the resulting pH?
February 9, 2011 by ashley

chemistry
Do strong acid strong base titrations have a buffer region?
May 12, 2011 by jam

Chem
where would the buffer region be on a weak acid weak base titration?
May 13, 2011 by Anonymous

bio
What is the term used when an amino acid is used for four or more codons?
October 16, 2011 by Nicole

Science
If i am provided with a supply of 2M of sulphuric acid,how can i explain how to prepare 500ml of 0.5M sulphuric?
November 10, 2011 by Abbie

chemistry
balanced reaction for reaction between ferrous sulphate and nittric acid
December 13, 2011 by sanju

chem
three moles of phosphoric acid contains how many moles of oxygen atoms
March 28, 2012 by lisa

chemistry
what is the ionization reaction and acid ionization constant expression for the HS- ion in water?
May 13, 2012 by ryan

Chemistry
how many grams of phosphorus pentachloride are needed to produce 49 grams of phosphoric acid.
May 12, 2013 by Anonymous

Chemistry
What is the conjugate acid of HPO4^2-(aq)? A. H3PO4(aq) B. HPO4^2-(aq) C. H2PO4-(aq) D. PO4^3-(aq) E. H3O+(aq)
December 14, 2014 by Tuan Le

Chemistry
How to perform a pH Titration of 25 ml of 50 mM Phosphoric acid from pH 1 to pH 13 with 1 N NaOH (including standardizing the NaOH).
January 17, 2015 by Charlotte

Chemistry
How to perform a pH Titration of 25 ml of 50 mM Phosphoric acid from pH 1 to pH 13 with 1 N NaOH (including standardizing the NaOH).
January 17, 2015 by Maddie

s
he a 1.00 m sol'n of nitric acid. how many ml of this sol'n will he need to add to the soil to completely react with 56.8 g of al(oh)3
October 19, 2015 by a

science
How can I prepare a acid with a specific concentration and volume. Example how can I prepare o.5M of HCl
February 22, 2016 by adams

Science
How many grams of sodium hydroxide are needed to react with 50 grams of phosphoric acid?
February 27, 2016 by Kyle Brovlofski

natural science
we must combine sodium carbonate with which acid to get sodium sulphate?
May 16, 2016 by Junior

Physics
A small mass attached to a spring oscillates with simple harmonic motion with amplitude of 70mm,taking 13 seconds to make 40 complete oscillations.Calculate the following showing steps; a.Its angular ferquency b.Its maximum speed c.Its maximum acceleration d.Its speed when ...
April 5, 2012 by Nkamo

Chemistry
Can hypochlorite ions oxidize bromide to bromine? In acid solutions, yes. That's the old qual test for bromide. Shake a solution of the unknown with NaOCl, this oxidizes bromide to bromine, and the bromine colors the carbon tetrachloride layer (added previously) yellow. Of ...
March 20, 2007 by Raj

chemistry
what is the difference between acid base reaction and oxidation reaction
September 15, 2009 by ANON

Environmental Science
what are the health and environmental effects of sulfuric acid (H2SO4)?
August 28, 2010 by michelle

science
acid produced by some plant roots __ __ ___ ___ __ __
November 14, 2010 by kayla

chemistry
Nitrous acid, HNO2, has a Ka of 7.1 x 10^-4. what are [H3O+], [NO2-], and [OH-] in .920 M HNO2?
November 15, 2010 by Ron

Chemistry
How many moles of nitric acid will be produced when 0.35 moles of water reacts?
February 3, 2011 by Brittany

chemistry
How will you prepare 150.0 ml 2.0 M H2 SO4 using concentrated H2 SO4 acid?
February 12, 2011 by CAHRINA

anonymous
lactic acid added with potassium bicarbonate and sodium bicarbonate
March 16, 2011 by Anonymous

accounting
What is the acid test ratio? Is it the same thing as the quick ratio?
December 9, 2011 by Matt

acids and bases
What is the Arrhenius acid and what is the Arrhenius base in the above reaction?
April 4, 2012 by princess

Chemistry
In the lab, as acid concentration got decreased, the Ka got increased. Why ?
April 15, 2012 by Mima

Please Help CHEM
Can you please tell me if these are right? Determine the pH for the following solutions A [OH-] = 1.0 X 10^-7 M I got 7 B. [H3O+ = 4.2 X 10 ^-3M I got 2.4 C. [H3O+]= 0.0001M I got 4 D. [OH-] = 8.5 X10^-9M I got 5.9 What are the [H3O+] and [OH-] for a solution with the ...
December 7, 2010 by Jessica

Chemistry
The maximum solubility of silver sulfate, Ag2SO4 [molar mass = 312], is 4.50 g/L at 25C. Silver sulfate dissociates by the reaction below: Ag2SO4(s) <--> 2 Ag+ (aq)+ SO4 (aq) 1.What are the [Ag+] and [SO4] in a saturated solution of silver sulfate made by dissolving...
March 20, 2011 by Paul

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, ...
October 12, 2010 by candy

chemistry
how is possible that we can get esters of carbon acid anhydrides but of esters we can't make anhidrous acids?
February 6, 2008 by black

chemistry
I am suppose to measure 55mL of 1.0 M hydrochloric acid in a 100 mL graduate and dilute this to 100.0 mL. How do I do this?
July 16, 2008 by Anonymous

chemistry
Write Sulfuric acid and potassium hydroxide where the products are potassium sulfate and water.
February 16, 2009 by Liz

chemistry
For 0.250 M of weak acid (NaHS) the Kb is given by 1.22 x10-13 , calculate the pH of the weak base.
April 18, 2009 by lil'mama

Biochem
10ml of HCl acid titrate with 9.9ml of NaOH. What is the mass in grams of HCl?
August 3, 2010 by Amrik

Chemistry
How do you calculate the volumes of the acid solutions (1.50M HCl, 1.50M HNO3, and 1.50 M H2SO4?
April 5, 2011 by Katie

chemistry
When a particular chemical compound can act as either an acid or a base we say that compound is
December 5, 2011 by Anonymous

science
using 0.5 m hci acid from a stock that is5m hci have to prepare 250 ml
February 25, 2012 by radika

chemistry
what is the pH and pOH of a soution with a volume of 5.4 that contains 15 grams of HCl and 25 grams of nitric acid
March 10, 2012 by Anonymous

chemistry
alternative reaction for acrylic acid and analyzing reaction for finding gross profit
January 10, 2013 by rajib

Chemistry
What is the ph at the equivalence point for a titration of 250 mL of 0.17M piperidine with 0.17 M nitric acid. (piperidine: Kb = 1.3 x 10-3)
April 23, 2013 by Chloe

Chemistry
Why does the titration of terephthalic acid yield a mass of approximately half the molar mass?
April 27, 2013 by Sam

Chemistry
If 2.5 grams of citric acid (H3C6H5O7) reacts, how many grams of carbon dioxide will be generated?
March 5, 2014 by anonymous

chemistry
Hydro chloric acid is usually purchased on the concentration of 36.5% . Why it is not obtained in 100% concentration?
September 22, 2014 by Herin

chemistry
state four differences between acid-base indicators and universal indicators
October 3, 2014 by isaac

Chemistry
I am doing a lab and broke my glass beaker. Is it of to put 0.1 M hydrochloric acid in a plastic beaker?
December 11, 2014 by Morgan

chem
How many grams of calcium chloride will be produced when 30.0g of calcium carbonate are combined with 14.0g of hydrochloric acid?
February 12, 2015 by Anonymous

Science
The stage of viral replication in which the viral nucleic acid is released inside the cell is ?
February 5, 2016 by Anonymous

case
If one of salicylic acid has a mass of 0.2g calculate the mass of aspirin that should be formed?
April 8, 2016 by tarain

Science
18 g of hydrochloric acid reacts with 15 g of calcium hydroxide produce calcium chloride and water.
April 26, 2016 by Jaime

chemistry
An unkown vol of 2Mol of NaOH reacted with 3g of ethanoic acid .....get the volume of NaOH
April 27, 2016 by Linus

Chemistry
SO2(g) + NO2(g) SO3(g) + NO (g) At a given temperature, analysis of an equilibrium mixture found [SO2] = 4.00 M, [NO2] = 0.500 M, [SO3] = 3.00 M, and [NO] = 2.00 M. (a) What is the new equilibrium concentration of NO when 1.50 moles of NO2 are added to the equilibrium mixture...
May 11, 2009 by Andre

Physical Science
Predict the shift of equilibrium for each of the following conditions in the following reaction involving gaseous reactants and products: N2 + 3H2 = 2NH3 + heat A. the pressure is increased. b. the temperature is decreased.
February 8, 2013 by Ed

Chemistry
3H2(g)+N2(g)=2NH3(g) Suppose the equilibrium constant Kp = 0.003337 for the reaction above. If the equilibrium mixture contains partial pressures H2 = 0.400 atm and N2 = 0.350 atm. What is the equilibrium partial pressure of NH3 in atm?
September 23, 2010 by Tiffany

Social Studies
PLEASE CHECK THESE MS. SUE!!!!!!!!!!! 3. The Pilgrims wrote the Mayflower Compact to establish ______. a. blue laws b. religious toleration c. government by consent*************** d. representative government 6. Which of the following was not a challenge experienced by the ...
October 20, 2015 by Ms. Sue PLEASE help me!!!

Precalculus
Which of the following is a solution for the equation 1/485tan^2x = 0? a) pi b) pi/2 c) 485pi d) no solution Which of the following is NOT a solution to the equation 4sin^2x = 1 for 0≤x≤2pi? a) 30 degrees b) 210 degrees c) 150 degrees d) 120 degrees?
January 27, 2012 by Melissa

Chemistry
Determine the concentration at equilibrium if you start with 4.65 grams of Hydrogen and 200 grams of Iodine in a 4.55 liter container. If you now add an extra 1.25M of I2 after equilibrium, calculate Qc. Recalculate now what the concentrations should be at equilibrium. H2(g...
July 28, 2015 by Jessica

Science
The following DNA sequence represents a eukaryotic gene. Indicate which is the template and which is the coding strand, determine where transcription begins (assume it ends at the end of the sequence presented), write out the nucleotide sequence of the initial transcript and ...
March 7, 2012 by HomeworkHatesMe

Chemistry
A solution of potassium hydroxide is in equilibrium with an undissolved solute at 45 degrees Celsius. What will happen to the mass of the potassium hydroxide if the temperature is raised to 50 degrees Celsius? (Given that heat of solution is -57.6kJ/mol)Please explain as well.
December 14, 2012 by Dayton

chem AP
Give a scientific explanation for the following observations. Use equations or diagrams if they are relevant. A. burning coal containing a significant amount of sulfur leads to "acid rain". B. Perspiring is a mechanism for cooling the body. C. At room temperature, NH3 is a gas...
January 28, 2008 by ivy

chem
1) If more reactant is added to a gaseous reaction at equilibrium, what will happen to the value of the equilibrium constant? a. it will increase b. it will decrease c. it will remain the same d. it can either increase or decrease 2) Which of the following describes a property...
February 1, 2012 by HEATHER

Chemistory
The reaction has an equilibrium constant of = 0.154. If 6.60 of , 4.30 of , and 11.60 of are added to a reaction vessel with a volume of 5.30 , what net reaction will occur? A-The reaction will proceed to the left to establish equilibrium. B-The reaction will proceed to the ...
April 18, 2013 by Anonymous

Health 9th grade
A mother breastfeeding her baby is an example of A. active acquired immunity. B. passive natural immunity. C. passive acquired immunity. D. active natural immunity. C is my answer ,but i'm not sure
March 25, 2009 by Terry

Chemistry
1. Regarding solutions and solids, which statement is true? A. If the solvent is water, the crystal lattice energy of a solid is absorbed. B. Hydration energy is related to the attractions between solute particles. (My Answer) C. If the solvent is water, the crystal lattice ...
October 24, 2011 by Anonymous

Chemistry
Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.5g . 1.) What minimum mass of H2SO4 would you need? 2.)What mass of H2 gas would be ...
March 29, 2015 by Katie

Chemistry
At a certain temperature, the equilibrium constant for the following chemical equation is 2.00. At this temperature, calculate the number of moles of NO2(g) that must be added to 2.64 mol of SO2(g) in order to form 1.10 mol of SO3(g) at equilibrium. SO2(g) + NO2(g) <--->...
April 2, 2013 by Dee

English
1. This is all that I have now. 2. This is what I have now. (Are both the same in meaning?) 3. Please show me that he is active. 4. Please show me the fact that he is active. 5. Please show me that this is correct. (Are the three sentences grammatical?
September 2, 2016 by rfvv

chemistry
Hi, The question is, using Henry's law constant calculate the amount of Hydrogen Sulphide gas which could dissolve in 500ml of pure water (H20) placed near an active volcano assuming equilibrium conditions and ignoring any reactions with water. The atmosphere surrounding the ...
April 14, 2010 by Will

college2
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

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 13, 2010 by moon

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