Friday
November 21, 2014

Search: NaOH, HC2H3O2

Number of results: 3,120

chem
Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? table 1: mL NaOH=1.00 ...
May 1, 2012 by Heather

CHEMISTRY
If 33.7 ml of 0.210 M KOH is required to completely neutralize 27.0 ml of a HC2H3O2 solution, what is the molarity of the acetic acid solution? HC2H3O2(aq)+ KOH(aq)-->KC2H3O2(aq)+H2O(l)
May 12, 2012 by Michael

Chemistry
Write a balance ionic and net equation for the following: KOH + HC2H3O2 I came up with the following but think this is wrong: KOH + HC2H3O2 -> H2O (l) + KC2H3O2 (aq)
May 13, 2011 by Thao

CHEMISTRY
calculate the ionization constant of the conjugate base for a solution made from 0.2Molar HC2H3O2 and 0.5Molar C2H3O2.The ionization constant for the acid (HC2H3O2) IS 1.8 Multiplied by 10^(-5)
March 31, 2012 by laze

chemistry
What is the pH of a buffer solution made from 0.20M HC2H3O2 abd 0.5M C2H302^-.The ionization constant of the acid (Ka)(HC2H3O2)is 1.8multiplied by 10^-5. (ii)Calculate the ionization constant of its conjugate base
April 2, 2012 by lovemore

Chemistry
C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l) is the equation. At 20 degree celsius, how many liters of acetic acid, HC2H3O2, would be formed? The density of acetic acid is 1.05g/cm3.
February 19, 2009 by Emat

Inorganic chemistry
mol KHP = (0.7719g)(1 mol KHP/204.2g) = .0038mol Where are the moles of NaOH? I know that there are 0.02637 L of NaOH and I know M = mol/l I know there are 40g NaOH/mol NaOH There is 1 mol of NaOH in the balanced equation But I do not have grams of NaOH
April 14, 2009 by Steve

Chemistry
a solution is made by combining 5 mL of .2M HC2H3O2, 5 mL of .2M NaC2H3O2, and 10 ml of water. calculate the molarity of HC2H3O2 and of NaC2H3O2 in this new solution
March 28, 2011 by Anonymous

acid and base titrations
Which of the following solutions should be used when titrating a 25.00mL sample of CH3COOH that is approximately 0.1 M? a.) 0.150 M NaOH b.) 0.001 M NaOH c.) 3.00 M NaOH d.) 6.00 M NaOH
November 21, 2010 by jj reddick

chemistry
A volume of 100mL of 1.00 M HCl solution is titrated with 1.00 M NaOH solution. You added the following quantities of 1.00 M NaOH to the reaction flask. Classify the following conditions based on whether they are before the equivalence point, at the equivalence point, or after...
August 6, 2012 by Anon

Chemistry
What is the pH of the solution created by combining 2.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? Can somebody explain how to do this? I am stuck. I've tried solving for H+ concentration. I got .00024M and subtracted it from [OH-]. Then I solved for ...
May 2, 2010 by John

chemistry
calculate the pH of a buffer solution containing 0.200M acetic acid, HC2H3O2, plus 0.150M sodium acetate. The dissociation constant for HC2H3O2 is 1.76 x 10-5 I dont think our instructor gave enough notes on these things Im kind of winging it from the book. Could you please ...
November 11, 2011 by Monique

chemistry
Consider a 20.0mL sample of 0.105M HC2H3O2 is titrated with 0.125M NaOH. Ka=1.8x10^-5. Determine each of the following: a) the initial pH b) the pH at 5.0mL of added base c) the pH at one-half of the equivalence point d) the pH at the equivalence point
November 15, 2010 by bobjahng2

chemistry
Calculate the pH of a [Acid] M aqueous solution of each of the hydrochloric and acetic acids: Acid [Acid] pH HCl 0.10 HC2H3O2 0.10 I know that HCl is just -log(0.10) which is 1, but can't get the pH of HC2H3O2.
May 4, 2008 by Renee

Chemistry-Is this correct?
The concentration of NaOH is normally in the range of 3-6 M when they peel potatoes and soak them in a solution of NaOH , remove them and spray them off. If I have 45.7 mL of 0.500M of H2SO4 required to react completely with a 20.0 mL sample of NaOh. What is the molar ...
May 20, 2010 by Sara

Chemistry
I've been working on this problem for hours and cant figure it out. I know it should be simple, but I'm stuck... The question is... Describe how to prepare 1.00L of a 1.0% (w/v) NaOH from a 2.0 M NaOH. *I need to figure out how many ml of the stock solution is needed. So far I...
January 10, 2013 by James

chemistry
HCl is titrated with NaOH. When doing the titration, some of the NaOH splashed onto the inside surface of the Erlenmyer flask, and you forgot to rinse it into your sample. Would the systematic error be falsely high, low, or unaffected and why? Thanks. As I understand the ...
September 17, 2006 by bria

science
what is the concentration of hydrogen ion in a 0.1M solution of sodium hydroxide(NaOH)? NaOH dissolves and completely dissociates in H2O to form the ions. NaOH ==> Na^+ + OH^- Therefore, starting with 0.1 M NaOH will give you 0.1 M in Na^+ and 0.1 M in OH^-. You know Kw=(H...
December 31, 2006 by michelle

Chemistry
Even if you can help answer one that would be a great help! 1. How many liters of NO(g) are produced when 0.85L of 2.00M HNO3 solution is added to 216g according to the equation. Which reactant is the limiting reactant? 3 Ag + 4 HNO3 -> 3 AgNO3 + NO + 2 H2O3 2. Calculate ...
October 20, 2013 by P.

chemistry
KHP is a monoprotic acid with a molar mass of 204.22 g/mol. The titration data are as following. The average concentration of NaOH solution is M. 1 2 3 mass of KHP (g) 2.789 2.543 2.612 vol NaOH used (mL) 27.77 23.22 27.12 You didn't ask a question but I assume you are to ...
May 16, 2007 by jared

Chemistry
Classify each of the compounds below as strong or weak acids, strong or weak bases, or salts: A. HCl B. KOH C. NH4NO3 D. H2SO4 E. NH4OH F. H3PO4 G. NaOH H. HClO4 i. Mg(OH)2 J. H2CO3 K. BaSO4 l. HC2H3O2 The numbers are sub(little numbers
April 29, 2014 by ASAP!!

Chemistry
One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. The concentration of NaOH is normally in the range of 3 to 6 M. The NaOH is analyzed periodically. In one such analysis, 45.7 ...
January 12, 2011 by Chin

Chemistry - pH
Calculate the pH of each of the following solutions: a) .35 M hydrochloric acid, HCl b) .35 M acetic acid, HC2H3O2 c) .35 M sodium hydroxide, NaOH Can someone please explain to me how to calculate the pH in a way that is easy to understand? I am confused. Could you please do ...
September 14, 2009 by Mandy

General Chemistry
"How would you prepare 150. mL of 0.1M sodium hydroxide given a stock solution of 3.0M NaOH?" I made calculations and figured the process would be to dilute 5 mL of the 3.0M NaOH to 150. mL. Is this correct? For the ideal 150. mL of 0.1M NaOH, I calculated there to need .015 ...
April 21, 2013 by Emily

chemistry
A buffer is made by adding 0.300 mol HC2H3O2 and 0.300 mol NaC2H3O2 to enough water to make 1.00 L of solution. The pH of the buffer is 4.74 . Calculate the pH of this solution after 0.020 mol of NaOH is added.
December 10, 2009 by Ericka

Chemistry
HC2H3O2 + NaOH --> NaC2H3O2 + H2O? a. when the titration is only half over, what species are present in the reaction flask b. what can be said about the pH at this point when the titration is half over? c. what is the pH at the equivalence point of this titration? 7, >7...
April 4, 2011 by Anonymous

Conductivity
Complete the table below: For each of the following sets pick the compound with the highest conductivity in a 1 M aqueous solution. (Enter the number at the top of the column containing the correct answer.) 1 2 3 Answers a HCl HC2H3O2 H2PO4– b KNO3 Ca(NO3)2 HNO3 c CH3OH NaOH ...
January 12, 2011 by Helen

Chemistry -- to Dr.Bob
What is the pH of the solution created by combining 11.10 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? ok Dr. Bob so here's the work NaOh: .00111 Acetic Acid: .0008 Salt produced: .00111-.0008= .00031 Concentration of salt: .00031/.0191= .01623 Acetic Acid...
May 3, 2008 by Amy

chemistry
Consider the titration of 21.0 mL sample of 0.110 M HC2H3O2 with 0.130 M NaOH. what is the initial pH? what is the volume of added base required to reach equivalance point? what is the pH at 5.00 mL of added base? pH at one half o the equivalence point? pH at the equivalence ...
July 29, 2010 by Ellen

Chemistry
A buffer solution is prepared by adding 14.37g of NaC2H3O2 and 16.00g of acetic acid to enough water to make 500mL of solution. What is the initial concentration of C2H3O2 in the solution? Ka(HC2H3O2)=1.8e-5 HC2H3O2 = H3O+ + c2h3O2 the molar mass of NaC2H3O3 = 82.04 I know ...
April 14, 2012 by Hannah

Chemistry
Use the dilution relationship (Mi x Vi = Mf x Vf) to calculate the volume of 0.500 M NaOH needed to prepare 500 mL of .250 M NaOH. This is my work ? L Solution = 500mL x (1L/1000mL) = .500L ? mol NaOH = .500 L Solution x (0.250 M NaOH/1 L Solution) = .125 mol NaOH ? L solution...
February 28, 2009 by Bob

Chemistry
Acetic acid, HC2H3O2, is the sour constituent of vinegar (acetum is Latin for "vinegar" ). In an experiment, 3.76 g of acetic acid was burned. HC2H3O2(l) + 2 O2(g) 2 CO2(g) + 2 H2O(l) If 54.6 kJ of heat evolved, what is ÄH per mole of acetic acid?
October 18, 2008 by Glenna

chem.
A 10.0 mL of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with .5062M NaOH, and 16.58mL is required to reach the equivalence point. A. What is the molarity of the acetic acid? B. If the density of the vinegar is 1.006 g/cm^3, what is the mass percent of ...
March 7, 2008 by Aditya

Chemistry
Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. Compare these theoretical values with the actual values found on the titration ...
July 14, 2010 by agreed

science-chemistry
We performed a titration with NaOH solution with KHP. Now I need to calculate the average molarity of NaOH based on this data Weight of khp= 0.1083 g Volume of naoh = 6.4 ml Then if i get this how do i get the molarity of ch3cooh totrated in naoh with the data Volume of ...
April 23, 2014 by cassy

Chemistry!!!!!! Please help immediately!!!
Please show me step by step. Thank you. One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. The concentration of NaOH is normally in the range of 3 to 6 M. The NaOH is analyzed ...
March 24, 2013 by Lilyyyyyyyyyyyy!!!!

Chemistry
9.50mL of .100M NaOH + 8.00mL of .100M of HC2H3O2. Find the pH. Okey this is what I did. 8.00-9.50=1.5mL or .0015L .0015L x .1000 = .00015 moles .00015/(total volume) = .0085714 M -log(.0085714)= 2.0669=pOH 14-2.0669 = 11.933 But I'm getting the feeling that this is wrong. ...
May 14, 2010 by Amphee

Chemistry
In order to make 1200mL of 2.0 M of sodium hydroxide, NaOH, from 9M NaOH, how many mL of the 9M NaOH should be used?
October 19, 2011 by Nikki

Math
1. Write the balanced chemical equation for the reaction NaOH + HCI --> NaCI + H20 2. Extract the relevant information from the qustion: NaOH v= 30mL, M=0.10 HCI v= 25.0 mL, M=? 3. Convert to Liters NaOH v= 0.03 L, M= 0.10M HCI v=0.025L, M=? 4. Calculate moles NaOh: n(NaOH...
March 8, 2010 by Maria

chemistry
If 58g of NaOH are dissolved in water to make a final volume of exactly 400mL, what is the molar concentration of NaOH? (The FM of NaOH = 40.0) How do I set this up?
October 31, 2011 by Katie

Chemistry
A solution is prepared by dissolving 50.0 g of pure HC2H3O2 and 20.0 g of NaC2H3O2 in 975 mL of solution (the final volume). what is the ph? What would the pH of the solution be if 50.0 mL of 0.900 M NaOH were added? What would the pH be if 30.0 mL of 0.30 M HCl were added to ...
November 12, 2012 by Bella

chemistry
If one-fourth cup of vinegar contains 0.049 mole of HC2H3O2, how many grams of baking soda will react with this amount of acetic acid? What would be the percent by weight of HC2H3O2 in this one-fourth cup of vinegar solution? (assume density of vinegar is 1.00 g/mL and that ¼ ...
July 25, 2011 by michael smith

chemistry
Baking soda is sodium bicarbonate, NaHCO3, and vinegar is primarily acetic acid, HC2H3O2. When baking soda is added to vinegar, the resulting reaction produces a tremendous amount of gas, as shown in this video. Complete this equation for the reaction of NaHCO3(s) with HC2H3O2...
April 19, 2013 by lee

College-Chemistry
NaOH(s)+ H2SO4(aq)=Na2SO4(aq) + H2O(l) Consider the unbalanced equation above.A 0.900 g sample of impure NaOH was dissolved in water and required 37.0 mL of 0.145 M H2SO4 solution to react with the NaOH in the sample. What was the mass percent of NaOH in the sample?
February 26, 2010 by Tiffany

Chemistry
A solution buffered at a pH of 5.00 is needed in an experiment. Can we use acetic acid and sodium acetate to make it? If so, how many moles of NaC2H3O2 must be added to a 1.0L of a solution that contains 1.0 mol HC2H3O2 to prepare the buffer. The Ka of acetic acid is 1.8x10^-5...
June 20, 2014 by Veronica

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
Calculate the pH of the following solutions. (A) 0.95 NaOH (B) 9.9x10^-10 M NaOH (C) 6.7 M NaOH
May 4, 2013 by wes

chemistry
Can you help me with the following: Calculate hte pH that results when 25 mL of .1M HCL is titrated with .1M NaOH solution run in from a buret at each of the stages of volume of .1 M NaOH add in 5.0 mL incrememnts beginning with 0 mL of NaOH
April 30, 2010 by Cathy

Chemistry
determine the approximate molarity of a solution of NaOH prepared by diluting 10ml of 6M NaOH to a volume of 400 ml. using the solution in the first part, 24.5ml of NaOH solution was required to neutralize 26.4ml of a .150M HCl solution. find the molarity of NaOH
February 28, 2008 by Chuck

CHEMISTRY FOR DR. BOB or anyone else
A hypothetical weak acid HA, was combined with NaOH in the following proportions: 0.20 mol HA, 0.08 mol NaOH. The mixture was then diluted to a total volume of 1L, and the pH measured. (a) If pH=4.80, what is the pKa of the acid (b) how many additional moles of NaOH should be ...
May 11, 2007 by Delli

Chemistry 12
Hey yall! i am working on a lab where we used NaOH solid (pellets) and 1.0M of NaOH solution. i was wondering is Sodium Hydroxide a substance that reacts with the enviroment? because maybe that could be like a source of error right? so basically i am wondering if both or one ...
March 19, 2007 by sandie

Chemistry
1) How many drops of 12M HCl would you add to 1.00 L of 0.100 M HC2H3O2 to make [C2H3O2-] = 1.0 x 10^-4 M? Assume that 1 drop = 0.050 mL and that the volume of the solution remains 1.00 L after the 12 M HCl is diluted. [Hint: What must be the [H3O+] in the solution?] 2. What ...
August 10, 2009 by Chem

chemistry
Hello, im having major issues with this problem...A 100.0-mL solution of 0.017 M CH3COOH (Ka = 1.8 10-5) is titrated with 0.025 M NaOH. Now, I've gotten some the answers all ready (right answers have *)....but three of them are wrong, can someone tell me what to do? 1.) ...
October 12, 2011 by A person

Chemistry
Find the concentration of the polyprotic weak acid given the following: - 1 equiv needs 6 ml NaOH, 2 equiv needs 18 ml NaOH, 3 equiv needs 28 ml NaOH - pKa1 = 2, pKa2 = 3.9, pKa3, 10 - Molarity of NaOH = 0.175 - Total volume of NaOH = 28 ml - Volume of weak acid = 30 ml Please...
October 7, 2013 by OR

Chemistry
Find the concentration of the polyprotic weak acid given the following: - 1 equiv needs 6 ml NaOH, 2 equiv needs 18 ml NaOH, 3 equiv needs 28 ml NaOH - pKa1 = 2, pKa2 = 3.9, pKa3, 10 - Molarity of NaOH = 0.175 - Total volume of NaOH = 28 ml - Volume of weak acid = 30 ml Please...
October 7, 2013 by OR

Chemistry 2 Lab
Calculate the degree of ionization of acetic acid in solution 1 through 3? All I am giving is the pH... pH of solution 1= 3 pH of solution 2= 3.5 pH of solution 3= 5 Then, I did this... HC2H3O2 (aq) + H2O (l) equals H3O+ (aq) + C2H3O2- (aq) Ka= 1.7 E -5 (according to chart in ...
March 19, 2013 by Robby

Chemistry
A 0.355 g sample of a solid, monoprotic acid having a molar mass of 121 g/mol requires 18.47 mL NaOH for neutralization. Calculate the molarity of the NaOH solution. I got 0.159 M NaOH
July 11, 2013 by <3

chemistry
Hello, im having major issues with this problem...I need to find a pH for a 100.0-mL solution of 0.017 M CH3COOH (Ka = 1.8 10-5) is titrated with 0.025 M NaOH. Now, I've gotten some the answers all ready (right answers have *)....but three of them are wrong, can someone tell ...
October 12, 2011 by A person

Chemistry
Which of the following solution should be mixed with 50.0 mL of 0.050 M HF solution to make an effective buffer? A) 50.0 mL of 0.10 M NaOH B) 25.0 mL of 0.10 M NaOH C) 50.0 mL of 0.050 M NaOH D) 25.0 mL of 0.050 M NaOH
April 1, 2012 by Anon

chem-acid-base titrations
Acetic acid (HC2H3O2) is an important component of vinegar. A 10.00mL sample of vinegar is titrated with .5052 M NaOH, and 16.88 mL are required to neutralize the acetic acid that is present. a.write a balanced equation for this neutralization reaction b.what is the molarity ...
April 21, 2008 by natash

Chemistry
A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the following points in the titration. Ka of HCOOH = 1.8 multiplied by 10-4. What is the pH when 50.0 mL NaOH is added 60.0 mL NaOH is added 70.0 mL NaOH is...
April 3, 2011 by George

Chemistry
Titration of 25.00 mL of a monoprotic acid solution with 0.2269 M NaOH is: Initial NaOH = 3.96 mL Final NaOH = 38.84 mL (dif is 34.88mL) Based on data what is the molar concentration of acid? I did V x M = 0.03488L NaOH x 0.2269 = 0.079143 Not sure if I should have switched to...
December 7, 2012 by Terry

chemistry
hello, I can't seem to solve this question. i tried to look up someone else who may have asked this question. I found this girl named Sara,but her answer didn't really help me much because it did not answer the question. What is the pH when enough 0.10 M NaOH Base (in mL) is ...
July 12, 2010 by THOMAS

Chemistry
A 0.327 g sample of a mixture of NaOH(s) and NaCl(s) requires 31.5 mL of 0.150 M HCl(aq) to react with all the NaOH(s). What is the mass percentage of the NaOH(s) in the mixture?
November 14, 2014 by Lexie

Chemistry
I dissolved 4g of solid NaOH in 200mL of water. I converted grams of NaOH to moles by 4g/40g/moles= 0.1moles. I calculated the concentration of NaOH by 0.1/(200mL/1000L)= 0.5 moles/L. I now have to record the expected mass of benzoic acid required to react in stoichiometric ...
January 13, 2010 by linda

chemistry Who clearly step by step
What per cent of free s03 can be obtained from 100g oleum, that is labeled with 113.5% h2s04? To 100 ml of 5M naoh solution density 1.2g/ml were added 200ml of another naoh solution with have a density 1.5g/ml and contains 20 mass percent of naoh. What is the concentration of ...
June 29, 2014 by ken

chem
20 ml of 0.1 M Acetic acid and 25 ml of 0.1 M Sodium Acetate are mixed together. then 5ml of 0.1 M of NaOH is added. Find the Ph before the addition of NaOH and after the addition of NaOH??
March 15, 2011 by james bond

chemistry
20 ml of 0.1 M Acetic acid and 25 ml of 0.1 M Sodium Acetate are mixed together. then 5ml of 0.1 M of NaOH is added. Find the Ph before the addition of NaOH and after the addition of NaOH??
March 15, 2011 by james bond

General Chemistry
Starting out with 50 mL of 0.20 M NaHCO3, calculate how many mL of 0.50 M NaOH solution to add to make 100 mL of approximately 0.10 M (total) buffer solution with a pH of 10.35. By adding NaOH, some of the NaHCO3 gets converted to the conjugate Na2CO3. This conjugate acid/base...
April 3, 2012 by Lucy

Chemistry
I'm trying to find the solubility of Ca(OH)2 in .0125 mol/L aqueous NaOH. Here is my data: Vol of solution used per titration: 20mL Conc of HCl: .1201 mol/L Average Titre: 4.71 I need to calculte: 1. the TOTAL [OH-] in the saturated solution of Ca(OH)2 in NaOH 2. the [OH-] due...
April 14, 2010 by Kristin

Chemistry
You have a bottle of 20% NaOH. You will use some of it to make a new solution by dilution with water. How musch 20% NaOH is needed to prepare 150mL of 7% NaOH by dilution.
October 9, 2010 by Jennifer

Chemistry
a 15.00mL sample of NaOH was titrated to the stoichiometric point with 17.40mL of 0.2340M HCl. a) what is the molar concentration of the NaOH solution? b)calculate the grams of NaOH in the solution.
December 9, 2010 by prince

Chemistry
0.255 g sample of H2C2O4 required 25.70 mL of NaOH to neutralize, what would you report as the molarity of NaOH solution? the reaction is as follows: H2C2O4(aq) +2 NaOH (aq) -> Na2C2O4(aq) +2 HOH (l)
June 7, 2011 by Vinny

Chemistry
A certain classification test calls for 5 mL of 1.2 M NaOH. The only concentration of NaOH solution available is 3.0 M. Describe how you would make the quantity that you need of the 1.2 M NaOH solution.
November 8, 2011 by Wanda

Chemistry
I have a lab for chemistry that I have to turn in soon, and I have no idea what the major and minor species if any of each of the substances we tested. Can someone please help me answer which one is the major/minor species of each of the elements? They are: 1. H2O(deionized)[...
September 12, 2010 by Esmeralda

Chemistry
I have a lab for chemistry that I have to turn in soon, and I have no idea what the major and minor species if any of each of the substances we tested. Can someone please help me answer which one is the major/minor species of each of the elements? They are: 1. H2O(deionized)[...
September 12, 2010 by Esmeralda

Chemistry II
A 12.00 mL sample of sulfuric acid from an automobile battery requires 34.62 mL of 2.42 M sodium hydroxide solution for complete neutralization. What is the molarity of the sulfuric acid? H2SO4 + 2NaOH ==> Na2SO4 + 2H2O molarity NaOH x liters NaOH = mols NaOH. mols H2SO4 = ...
April 25, 2007 by Jayd

Chemistry
In the titration of 14.0 mL of 0.10M acetic acid with 0.40 M NaOH, (A) How many mL of NaOH needed to completely neutralize the acid? Given the balanced equation: CH3COOH (aq) + NaOH (aq) 􏰀 CH3COO Na (aq) + H2O
May 13, 2013 by Lisa

chemistry
Calculate the amount of NaOH in this solution 5.00mL of 12.0 NaOH is diluted with water to make 24 mL of 2.50 NaOH solution
April 24, 2012 by crystal

chem
Calculate [H3O] in the following solutions. 5.15x10-2M HCl and 7.62x10-2M NaC2H3O2 Responses HCl + NaC2H3O2. It appears there is an excess of H^+ which will react with NaC2H3O2 to form HC2H3O2. That gives you a buffer of C2H3O2 and HC2H3O2 and you use the H-H equation to solve...
April 16, 2009 by tomi

chemistry
hello, I can't seem to solve this question. i tried to look up someone else who may have asked this question. I found this girl named Sara,but her answer didn't really help me much because it did not answer the question. What is the pH when enough 0.10 M NaOH Base (in mL) is ...
July 12, 2010 by THOMAS

Chemistry
When 50.0ml of 1.00M HCl is titrated with 1.00M NaOH, the pH increases. calculate the difference in pH of the system when you add 49.99ml NaOH and 50.01ml of NaOH. Please work out detailed steps.
March 29, 2013 by Grace

chemistry
i am given equation CH3COOH + NaOH ---> NaCH3COO + H2O 25ml of acetic acid solution 0.025L 12ml of mid point of titration 1mol of NaOH find molar concentration i use a balanced equation it's a 1:1 ratio finding NaOH molarity = mols/litre = mols/L molarity= 1mol NaOH/0.012 ...
April 12, 2008 by unknown

Chemisty
Calculate the number of milliliters of 0.738 M NaOH required to precipitate all of the Mg2+ ions in 148 mL of 0.541 M MgSO4 solution as Mg(OH)2. The equation for the reaction is: MgSO4(aq) + 2 NaOH(aq) Mg(OH)2(s) + Na2SO4(aq) _____________mL NaOH
February 7, 2012 by Eliazbeth

chemistry
530 mL solution 10% HCl has been spilt onto the bench. It cannot be diluted or washed away. How much of the granular NaOH from the container seen in a must be used to neutralise the acid? [Using NaOH: MM = 40 g/mol] 1. I have NaOH + HCl --> NaCl + H2O. 10% HCI in a 530ml ...
October 2, 2014 by Anonymous

chemistry
The titration of HCl with NaOH is represented by the equation HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) What volume of 0.100 M HCl is required to titrate 50.0 mL of 0.500 M NaOH?
December 6, 2011 by kathy

Chemistry
Given the reaction 2 Na2 02 (s) + 2 H2o(i) —- 4 NaOH(s) + 02(g) triangle H= -109 KJ determine the following reactions. 16 Na2o2(s)+ 16 H2o(i)———- 32 NaOH(s) + 8 O2(g) 2 NaOH(s)—-+ 1/2 o2(g)——-Nao2(s)+ H2o(I)
October 26, 2013 by Grace Peterson

chemistry
Calculate the volume of concentrated NaOH solution (which contains 500.00g of NaOH per liter of solution) that you will need to make 1.00L of a 0.100M NaOH solution
October 28, 2014 by xx

Chemistry
In this experiment NaOH is standardized to titrate it with vinegar so thtat the percent by mass of the acetic acid can be determined. How does dissolved CO2 in distilled water affect the accuracy of the determination of a NaOH solution's concentration? How is the term acid ...
March 29, 2014 by Sandy

Chemistry
Asprin, c9h804, is produced through the following reaction of salicyclic acid, c7h6o3, and acetic anhydride, c4h6o3. chemical equation: c7h6o3 + c4h6o3 yields c9h8o4 + hc2h3o2 (all numbers in this equation are subscripts) At 20 degrees Celsius. how many liters of acetic acid, ...
January 21, 2007 by Steph

Chem
The question is telling me that NaOH (24.00 grams) is diluted in water (750 mL). Find the pH and pOH. This is what I did so far: NaOH ---> Na+ + OH- NaOH: mass = 24.00 grams v= 750 ml = 0.750 L M= 40.00 grams/mol n= 0.6000 mol c= 0.800 mol/L Since NaOH dissociates 100%, the...
July 27, 2009 by Lena

AP CHEM
Please help me with these AP Chemistry homework problems and show me the steps how to find the solutions: Liquid-Liquid Tirations: What is the concentration of the unkown solution for each of the following titrations? #5) 25.36 mL of 0.178 M NaOH is required to titrate an 25....
July 31, 2008 by shylo

College Chemistry
1) A 25mL sample of the .265M HCI solution from the previous question is titrated with a solution of NaOH. 28.25mL of the NaOH solution is required to titrate the HCl. Calculate the molarity of the NaOH solution. 2) A 1.12g sample of an unknown monoprotic acid is titrated with...
October 25, 2010 by Jessica

USF
If I need 600ml of a 0.5M NaOH solution and I am given 3M of NaOH, how much NaOH will I need?
June 16, 2010 by Mc. K

chemistry
If you need 600 mL of a .5 M NaOH solution and 3 M NaOH is provided, how much of the 3 M NaOH will you need?
November 3, 2010 by Brandon

chemistry- pH, neutralization
What volume of NaOH was required to have neutralized the HCl. HCl + NaOH --> H2O + NaCl There no other information given in the problem except in later questions like the NaOH had 0.1 M and that there was 50.00 mL of HCl.
February 2, 2012 by laura

Solution Preparation
I need help with Writing a Report Purpose: Preparing 0.2 M 250 ml NaOH solution? Equipments and Materials: Equipments: -Balance -Beaker(250ml) -Graduated cylinder Materials: -Pure water -NaOH Procedure: 1)Calculate the required amount of NaOH in gr. 2)Weight calculated amount ...
March 2, 2012 by Rustam

Chemistry II
Calculate the change in heat: 2 Na(s) + 2 H2O(l) > 2 NaOH(aq) + H2(g) So far this is what I have: 2 H20 --> 2 H2 + O2 2(285.83) kJ 2 Na + O2 + H2 --> 2 NaOH 2(-426.73) kJ 2 Na + 2 H2O --> 2 NaOH + H2 -281.8 kJ If this correct?? yes, correct, as best as I can tell.
May 20, 2007 by Jayd

Chemistry
We did a lab for acid-base titrations, and I'm having trouble with my post lab questions because I had trouble with acid-base reactions and titrations in the first place! "Calculate the molar amounts of NaOH used in the reaction with the HCl solution and with the HC2H3O2. I ...
April 21, 2007 by Rachel

chemistry
If it requires 30.0 milliliters of 1.2 molar HCl to neutralize 20.0 milliliters of NaOH, what is the concentration of the NaOH solution? Balanced equation: NaOH + HCl NaCl + H2O (3 points)
June 22, 2011 by Anonymous

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members