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March 3, 2015

Search: calculate the mass of solid NaOH needed to make 200.mL of a 0.600M NaOH solution

Number of results: 82,573

Chemistry
For each of the following unbalanced equations, suppose that exactly 15.0g of each reactant is taken. Determine which reactant is limiting, and calculate what mass of each product is expected. assume the limiting reactant is completely consumed. a)Al+HCL->AlCl3+H2 b)NaOH+...
February 16, 2009 by Megan

Chemistry
Calculate the volume of NaOH 0.5 mol/L necessary to neutralize 300 mL of HCl 0.2 M. na= how do I calculate this? Ma= 0.2 M Va= 0.300 L nb= 0.5 mol Mb= 0.5 M Vb= ?
May 13, 2014 by Alyssa

Chemistry
How many grams of chlorine gas are needed to make 5.40 x 10 6 g or a solution that is 1.40 ppm chlorine by mass?
November 5, 2014 by Dustin

Chemistry help needed
How many milligram of lysozyme (MW=14,600 g/mol) are needed to make 3 liters of a 10^-6 M solution?
September 15, 2013 by Kris

Chemistry - titration lab
Hello. For my chemistry of solutions class, we had a titration lab where we titrated NaOH into an HCl + H2O mix. This was a preparatory titration for the next one consisting of the hydrolysis of ethyl acetate into acetic acid with H+ ions as a catalyst (in our case the HCl). ...
July 31, 2012 by Robertq

chemistry
hi, I am trying to find the solubility of Sodium Acetate by using 0.100 mol Hydroxide(base) and 0.837 mol acetic acid( vinegar). The theoretical solubility of sodium acetate is 82.3g/100ml at 25C. Doing calculations we would want NAOH concentration of 10.47mol/l to react with ...
June 3, 2008 by john

Chemistry
Why should the sodium hydroxide pellets be completely dissolved in the preparation of the NaOH solution? please explain thouroughly, thanksss in advance!!
March 18, 2011 by Maria

Chemistry
Is it quantitatively acceptable to titrate all KHC8H4O4 samples with the NaOH solution to the same dark red endpoint ?Explain. thank for helping~
October 31, 2011 by limit

Chemistry
If a chemist titrates 300.0 mL of H2SO4 with a 3.0 M solution of NaOH and requires only 3.4 mL of the base to reach the endpoint, what is the concentration of the sulfuric acid?
February 17, 2012 by Tristin

Chemistry
If a chemist titrates 300.0 mL of H2SO4 with a 3.0 M solution of NaOH and requires only 3.4 mL of the base to reach the endpoint, what is the concentration of the sulfuric acid?
February 17, 2012 by Spacy1996

chemistry
What volume in ml of 0.0985 m NaOH solution is required to reach the end point in the complete titration of a 15.0 ml sample of 0.124 M phosphoric acid?
July 22, 2013 by AmyN

Chemistry
PLEASE HELP! I was just wondering why it is important to add an NaOH pellet to a nucleophile containing solution with ethanol before adding an electrophile.
November 20, 2013 by Anon

Chemistry
A compound D, CH3CHCLCH2CH3 was boiled under reflux for some time with dilute NaOH solution.. Dilute nitric acid was then added to the mixture, followed by dilute silver nitrate solution. A Few drops of concentrated ammonia solution were then added. What observation were ...
December 15, 2014 by Aboi

Chemistry
PartA: What volume of 10.0M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? TrisHCl is a weak base and the molecular weight is 157.67 g/mol. I found the solution, it is 6.67 milliliters. The main question is:Part B: "The buffer from Part A is ...
March 1, 2009 by Raj

Chemistry
A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. Step 1. 0.001694g * 25ml * 1/155 g/mol= 0.0002732 mol Step 2. Volume of EDTA needed = 0.0002732 mol/ 0.008640 M = 0.03125 ...
January 21, 2015 by Sam

science (chem)
In general when instructions are to let a solution cool to room temp would it be incorrect to put the bottle containing the solution into a cold water bath so it could cool faster? Would it affect the solution in an adverse way? or does it depend on what you are cooling? ...
June 27, 2007 by christina

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
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage batteries(like a car battery). 1....
January 9, 2011 by Kevin

chemistry
How many grams of chlorine gas are needed to make 5.10 106 g of a solution that is 1.50 ppm chlorine by mass?
September 24, 2014 by Anonymous

JHU
When excess solid Mg(OH)2 is shaken with 1.00 L of 1.2 M NH4Cl solution, the resulting saturated solution has pH = 9.30. Calculate the Ksp of Mg(OH)2
November 30, 2012 by Anzeeel

Chemistry
When excess solid Mg(OH)2 is shaken with 1.00 L of 1.2 M NH4Cl solution, the resulting saturated solution has pH = 9.30. Calculate the Ksp of Mg(OH)2
December 1, 2012 by Anzeel

College Chemistry - Science
At room temperature (25C), 45 mL of a 0.002 M acid solution reacts with 30 mL of a NaOH (aq) solution (pH = 11.95), determine (through calculations) whether the acid is phosphoric acid (H3PO4), acetic acid (CH3COOH), or carbonic acid (H2CO3).
March 2, 2014 by Anonymous

Chemistry 110
3. Suppose that part (II) of the experiment were carried out with aqueous NaOH instead of Ba(OH)2 to form soluble Na2SO4 along with H2O as products. (a) Write the overall balanced equation. (b) Write the net ionic equation. (c) How would the graph of conductivity versus volume...
November 9, 2010 by kim k

Chem
Sodium cyanide NaCN is a solid which melts at 564C to give a liquid that conducts electricity, It also dissolves in water to give a conduction solution. Deduce the type of bonding that holds the compound together and why? Write a balanced chemical equation for the reaction ...
March 12, 2007 by Anthony

chemistry
Can someone make sure that I am correct with my first solution? Also I need help with the 2nd problem. I am a little confused about where to begin. 1.) 1.7423g of potassium dichromate were placed in a 250.00 mL volumetric flask and water was added to the mark. Calculate the ...
October 7, 2008 by titration

chemistry
A 13.0 mL sample of an unknown HClO4 solution requires titration with 25.2 mL of 0.180 M to reach the equivalence point. What is the concentration of the unknown HClO4 solution? The neutralization reaction is as follows: HClO4 +NaOH ===>> H2O +NaClO4
November 2, 2010 by john

chemistry
A 0.1 M solution of acetic acid is titrated with 0.05M solution of NaOH. What is the pH when 60% of the acid has been neutralized? The equilibrium constant (Ka) for acetic acid is 1.8x10^-5
July 24, 2010 by eric

physics
A yo-yo is made of two solid cylindrical disks, each of mass 0.053 kg and diameter 0.073 m, joined by a (concentric) thin solid cylindrical hub of mass 0.0052 kg and diameter 0.012 m. Use conservation of energy to calculate the linear speed of the yo-yo when it reaches the end...
November 29, 2010 by Sasha

chemistry
How many grams of solid KOH are needed to prepare 100.mL of a 1.7 M solution?
February 21, 2011 by Kelli

Chemistry 12
The molar solubility of calcium sulphate CaSo4 is 8.43 x 10-3(10 to the power of negative 3) M. Calculate the mass of solid CaSo4 which can be evaporated from 250.0 mL of a saturated solution of CaSO4.
October 8, 2013 by Riann

chemistry
A hexane solution contains as impurities 5.2% (by mass) hepatne and 2.9% (by mass) pentane. Calculate the mass of each component present in 93g of the solution.
April 17, 2011 by Pat

chemistry asap!
I'm having trouble solving this percentage concentration problem: A student wants to make 5.00% solution of rubidium chloride using 0.377g of the substance. What mass of water will be needed to make the solution? [g RbCl2/(g RbCl2 + g H2O)]x100 = 5.00 Solve for g H2O. A day ...
January 24, 2007 by michelle

science
preparation of copper sulphate crystals excess copper oxide is needed above a)how do you know the solid is in excess? b)how do you remove the excess? c)what colour is the solution? d)give the next to steps to make crystals?
November 6, 2011 by chloe

chemistry
A 0.5130 g aspirin tablet which was dissolved in 95 percent ethanol required 27.98 mL of 0.1000 M NaOH for neutralization. Then an additional 42.78 mL of 0.1000 M NaOH was added and the soln was heated to hydrolyze the aceytlsalicyclic acid. After the reaction mixture was ...
January 12, 2011 by kelis

Chemistry
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage batteries(like a car battery). 1....
January 13, 2011 by K

sceince 2
6. When aqueous solutions of table salt and silver nitrate are mixed, a white solid forms. This solid is ____. (1 point)soluble a precipitate an alloy a solute 7. Stainless steel is an example of a ____ solution. (1 point)liquid-solid solid-liquid solid-solid gas-solid 8. ...
April 17, 2012 by NIKE

Chemistry
What mass of sodium chloride, NaCl, is needed to make 369. g of a 3.04%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
November 3, 2014 by Abby

Chemistry (Check)
Completion Percent error is calculated by dividing the ___1____ of the error by the accepted value and then multiplying by ____2___. 1)ablsoute vale 2)100% right on both. thanks when 2.0 g of NaOH were dissolved in 53.0 g water in a calorimeter at 24C, the temperature of the ...
January 15, 2007 by Bryan

physics
A solid of mass 1kg suspended by a string is completely immersed in water. If the tension in the string is 5N, calculate the upthrust on the solid. (take g = 9.78m/s)
July 31, 2014 by Francis

Chemistry
What is the volume of a solution of 0.5 M NaOH that must be added to adjust the pH from 4 to 9 in 20 mL of a 100 mM solution of phosphoric acid? Its been about 4 years since I've done this stuff. All I know is the pKa of phosphoric acid is 2.15 and I'm assuming In need to use ...
September 23, 2010 by Waleed

Chemistry
What is the volume of a solution of 0.5 M NaOH that must be added to adjust the pH from 4 to 9 in 20 mL of a 100 mM solution of phosphoric acid? Its been about 4 years since I've done this stuff. All I know is the pKa of phosphoric acid is 2.15 and I'm assuming In need to use ...
September 23, 2010 by Waleed

Chemistry
Suppose you tried to carry out a double replacement reaction by mixing equal voulumes of a solution that contains dissolved NAOH and a solution that contains dissolved NACL. WHat would you expect to happen when the two solutions were mixed? Expain?
March 18, 2014 by James

chemistry
A student tipped the watch glass and spilled the solution containing organic component X. Use the data given below to estimate the percent of organic solid X in the sample. Mass of sample 0.6084g Mass of water soluble component, Y 0.1565g Mass of insoluble component, Z 0.2293g...
April 9, 2012 by Vanilla

Chemistry
Calculate the osmotic pressure of this solution. 18..6 grams of solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm3 of solution at 25 celsius. What is the osmotic pressure of the solution?
November 22, 2010 by Jose Reyes

stoichiometry
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M aluminum nitrate is added to 200.0 mL of 0.100M potassium hydroxide?
February 26, 2008 by omar

Chem
The following questions refer to the following system: A total of 30.0 mL of a .10M solution of a monophonic acid (Ka = 1.0 x 10 ^-5) is titrated with .20M sodium hydroxide solution. 1) Before the titration begins, the pH of the solution is about A) 2 B) 5 C) 7 D) 9 E) 12 2) ...
April 6, 2014 by Charlie

chemistry
a student needed 1000 ml of a 0.10 buffer of ph 4.0. calculate the amount of sodium acetate and acidic acid needed for this solution
April 20, 2010 by bay

chemistry
Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 2.00 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)? Complete the table ...
October 28, 2011 by Sara

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 11.80 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)? Complete the table ...
October 28, 2011 by Sara

chemistry
Transfer the tablet to a clean 125-mL Erlenmeyer flask. Add 10-mL of 1M NaOH and heat the mixture to a gentle boil. Once the solution has cooled to room temperature, transfer it to a 100-mL vol. flask. Using the diluted solution from the 100-mL volumetric flask, rinse a 1-mL ...
January 31, 2010 by eng

Chem
I don't get how to do this: What is the pH of the solution created by combining 11.30 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)? What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first...
October 29, 2007 by Anne

Chemistry
A buffer containing 0.2832 M of acid, HA, and 0.1504 M of its conjugate base, A−, has a pH of 2.36. What is the pH after 0.0015 mol NaOH is added to 0.5000 L of this solution?
March 16, 2012 by Tracey

chemistry
A .500 g sample of impure CaO (a solid) is added to 50.0 mL of 0.100 M HCl. The excess HCl is titrated by 5.00 mL of .125 M NaOH. What is the percentage of CaO in the sample?
May 9, 2012 by b

chem -please help!!!!!!!!!!!!
An unknown compound, X, is though to have a carboxyl group with a pKa of 2.0 and another ionizable group with a pKa between 5 and 8. When 75 mL of 0.1M NaOH is added to 100 mL of a 0.1M solution of X at pH 2.0, the pH increases to 6.72. Calculate the pKa of the second ...
September 10, 2012 by ron

Chemistry
1. Aluminum reacts with oxygen to produce aluminum oxide which can be used as an adsorbent, desiccant or catalyst for organic reactions. 4Al(s) + 3O2(g) → 2Al2O3(s) A mixture of 82.49 g of aluminum ( Picture = 26.98 g/mol) and 117.65 g of oxygen ( Picture = 32.00 g/mol) ...
September 15, 2014 by Tim H

Chemistry
A solution of 220mL of 0.200M Koh is mixed with a solution of 120mL of 0.240M NiSO4. 1.Determine limiting reactant? 2.Calculate the mass of precipitate formed? 3.Calculate the molarity of all ions left in the solution?
October 9, 2011 by anonymous

chemistry
A solution of 220mL of 0.200M Koh is mixed with a solution of 120mL of 0.240M NiSO4. 1.Determine limiting reactant? 2.Calculate the mass of precipitate formed? 3.Calculate the molarity of all ions left in the solution?
October 9, 2011 by anonymous

Chemistry
7.0 ml of 6.0 M NaOH are diluted with water to a volume of 400 ml. You are asked to find the molarity of the resulting solution. The total number of moles of NaOH is not changed on dilution. Calulate the molarity. Work: (6)(.007)=(x)(.4) x=.105M Thanks for showing your work. I...
April 19, 2007 by Anonymous

ap chemistry
What mass of solid sodium formate (of MW 68.01)must be added to 125 mL of 0.48 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.07? Ka = 0.00018 for HCOOH. Answer in units of g
February 4, 2014 by gabriella

chemistry
What mass of solid sodium formate (of MW 68.01) must be added to 115 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.16? Ka = 0.00018 for HCOOH. Answer in units of g
January 31, 2015 by Anonymous

Analytical chemistry
Below i wrote a few problems, i did them all but in the book i don't have results, so i don't know if i did them right or not. I would really appreciate if someone would go through the problems and tell me if i got the right results. If i made a mistake somewhere please let me...
August 3, 2013 by Gloria

Chemistry
What mass (in grams) of sodium chloride, NaCl, is needed to make 422. g of a 3.39%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
November 7, 2014 by Brittany

Chemistry
Solid Nal is slowly added to a solution that is .0040 M in Cu^+. Calculate the [I-] when CuI just begins to precipitate from the solution.
December 8, 2010 by Taylor

chemistry
Determine the volume of 0.150 M NaOH that neutralizes 0.188 g of a diprotic acid having a molar mass of 152.2 g/mol?
June 24, 2011 by freda2

chemistry
If 10.0 mL of 0.250 mol/L NaOH(aq) is added to 30.0 mL of 0.17 mol/L HOCN(aq), what is the pH of the resulting solution?
April 5, 2008 by Tim's Titration Lab

chemistry
mL of 0.0100 M NaOH are added to 25.0 mL of 0.0100 M acetic acid. What is the pH of the resulting solution?
October 21, 2011 by yahn

Chemistry
If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCI solution, what is the concentration of the HCI?
May 12, 2013 by Crystal

CHEMISTRY
The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 200.5 mL of 0.400 M HCl is mixed with 149.1 mL of 0.500 M NaOH?
October 9, 2012 by Sarah

chemistry
what is the density of solid that has a mass of 250.g and a volume of 200.ml
October 12, 2011 by Anonymous

Chemistry
An unknown monoprotic weak acid, HA, has a molar mass of 65.0. A solution contains 2.20 g of HA dissolved 750. mL of solution. The solution has a pH of 2.200. What is the value of Ka for HA?
April 27, 2010 by Sue

chemistry
What is the pH of a solution when 500ml of 0.2M NaOH and 500ml of 0.2M H2SO4 are mixed? Pls help.
April 26, 2012 by Amos & Jayson

chm
What is the pH of the solution obtained by mixing 30.00mL OF 0.250M HCL AND 30.00mL OF 0.125M NaOH?
March 31, 2010 by ami

chemistry
two solutions are mixed: 100.0 mL HCl(aq) with p 2.20 and 100.0 mL of NaOH}(aq) with pH} 11.20. What is the pH} of the resulting solution?
April 11, 2010 by anonymous

chemistry
what is the pH of a solution containing 25 ml of 0.10M acetic acid after 10 ml of 0.10M NaOH is added?
August 8, 2010 by thimmaiah

chemistry
How do I prepare 2 L 0.1 M Hydrochloric acid from 6 M HCl ? Also how do I prepare .05 M NaOH solution from pellets? Thanks
May 4, 2011 by rosie

Chemistry
help...If exactly 5.0 mL of HNO3 will neutralize 15 mL of 2.0 M NaOH, what is the molarity of the HNO3 solution? Have no idea what to do. thank you.
March 25, 2012 by Brad

chemistry
Determine the pH of a solution containing 0.045 M NaOH and 0.025 M KI: With activities: Without activities:
September 28, 2012 by amanda1012

Chemistry
A quantity of 100 mL of .5M of HCl (aq) is mixed with 100 mL of .5M of NaOH (aq) in a constant pressure calorimeter. The initial temperature of the solutions is 22.30 C and the final temperature of the mixed solution is 25.00 C. What is "q" for solution and "q" for reaction?
April 8, 2012 by Dante

chemistry
Find the molar masses of the following compounds: 1. LiI 2. PbCO4 3. Mg(OH)2 4. (NH4)3PO4 Find the percent composition (percent by mass) of the given element in the following compounds: 1. Fluorine in AgF 2. Hydrogen in glucose (C6H12O6) 3. Oxygen in Fe2(SO4)3 PART II: ...
March 2, 2015 by Alex

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
HCl(aq) + NaOH(aq) -> NaCl(aq) + H2O(l) NH4Cl(aq) + +NaOH(aq) -> NH3(aq) + NaCl(aq) + H2O(l) NH3(aq) + HCl(aq) -> NH4Cl(aq) Write net ionic equations for the three reactions. Show how the first two reactions are arranged algebraically to determine the third.
October 27, 2010 by Anonymous

Chemistry
how many grams of solid KOH is needed to neutralize 1.00 L of 0.250 M HNO3 solution?
April 18, 2011 by Helena

Chemistry
40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After 20.0 mL of the base solution has been added, the pH in the titration flask is 5.10. What was the concentration of the original acetic acid solution? [Ka(CH3COOH) = 1.8 105]
November 9, 2010 by Kelly

Chemistry
Calculate the amount of Na2HPO4*7H2O in grams needed to make 50 mL of a 0.40 M solution. I think this is dealing with molarity but i cant figure it all out for some reason? Help would be greatly appreciated.
March 11, 2012 by Bruce

Chemistry
A 21.18 mL of 0.250 M NaOH is titrated with a H2SO4 solution. The initial volume of H2SO4 was 13.28 and the final volume of H2SO4 was 28.29 mL when the solution turned very slightly pink. What is the concentration of H2SO4?
December 7, 2010 by Ivy

Chemistry
Calculate the mass of calcium phosphate that forms when 5.50 x 10 -2 mol of solid calcium chlorate is dissolved in 600.0 mL of 1.00 x 10 -2 M lithium phosphate solution.
February 21, 2012 by Bella

chemistry
A saturated solution of kno3 at 70c is cooled to 10c. What mass of a solid of precipitate out of solution.
December 19, 2012 by Riana

Chemistry--PLEASE HELP
A solution of 220mL of 0.200M Koh is mixed with a solution of 120mL of 0.240M NiSO4. 1.Determine limiting reactant? 2.Calculate the mass of precipitate formed? 3.Calculate the molarity of all ions left in the solution?
October 9, 2011 by anonymous

chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what volumes of ethanol and ...
February 10, 2011 by Anonymous

chemistry
What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what volumes of ethanol and ...
February 10, 2011 by Anonymous

chemistry
Calculate the pH at the equivalence point for the titration of 0.25 M CH3COOH with 0.25 -5 M NaOH. (For CH3COOH, Ka= 1.8 ⋅ 10 )
July 15, 2013 by ginger

Chemistry
Can a buffer solution with pH = 4.70 be prepared using water, 6.0 M HC2H3O2 and 6.0 M NaOH? Justify your answer. Ka = 1.8 x 10-5 for HC2H3O2 , K = 1.0 x 10-14 .
August 6, 2008 by Alexis

chemistry
Two aqueous solutions are mixed: 50.0 mL of 1.6010−2 M H2SO4 and 50.0 mL of 3.7510−2 M NaOH. what is the PH of the following solution?
April 11, 2010 by anonymous

CHEM 112
A buffer solution is 1.40 M in NH3 and 1.00 M in NH4Cl. If 0.100 moles of NaOH are added to 1.00 L of the buffer, what is its pH?
October 6, 2011 by Haley

CHEM 112
A buffer solution is 1.40 M in NH3 and 1.00 M in NH4Cl. If 0.100 moles of NaOH are added to 1.00 L of the buffer, what is its pH?
October 6, 2011 by Haley

chemistry
determine h30+ in M, of 10.00ml of .100M NaOH after adding 10.00ml of indicator solution?
February 27, 2013 by tina

chemistry
What is the magnitude change in pH when 1.8g of NaOH is added 1L of a solution that is 0.100M in NH3 and 0.100 in NH4Cl? Kb for NH3 1.8 * 10^-5
June 21, 2014 by Anonymous

Chemistry
If 25.00 ml of H2SO4 solution is titrated to an end point with 32.16 ml of 0.1986 M NaOH, what is the molarity(M) of the H2SO4 acid?
December 14, 2014 by James

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 --
August 16, 2010 by Kelsey

chemistry
If 20 mL of 0.10 M NaOH are added to 30 mL of 0.20 M HOAc, what is the pH of the resulting solution? (Ka = 1.8 10-5 for HOAc.)
June 18, 2010 by david

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