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September 26, 2016

Search: Calculate the pH of 0.10 M aqueous solution of each of the hydrochloric and acetic acids: Complete the following table.

Number of results: 89,632

chemistry
How many milliliters of a 3.00 M solution of hydrochloric acid are needed to completely react with 25.0 g of zinc sulfide according to the chemical reaction shown below? ZnS(s) + 2HCl(aq) ? ZnCl2(aq) + H2S(l) (Answer to three significant digits.) _____ mL of 3.00 M ...
December 28, 2011 by joe walker

Chemistry
A buffer is made by mixing 52.1 mL of 0.122 M acetic acid with 46.1 mL of 0.182 M sodium acetate. Calculate the pH of this solution at 25 degrees C after the addition of 5.82 mL of 0.125 M NaOH
May 1, 2010 by Chemistry Problem

Chemistry
Acetic acid is a polar molecule and can form hydrogen bonds with water molecules. Therefore, it has high solubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3.8g of CH3COOH in ...
February 17, 2012 by James

science
write word equations and balanced chemical equations for each of the following reactions: a)calcium bicarbonate reacts with hydrochloric acid. b)magnesium hydroxide reacts with hydrochloric acid. c)Aluminum hydroxide reacts with hydrochloric acid.
June 22, 2016 by Adivhaho

chemistry
Calculate the number of moles in each of the following: 0.150 g of salicylic acid 0.30 mL of acetic anhydride (density = 1.08 g/mL)
February 24, 2012 by Pat

Physical chemistry 2
50 ml of 0.02M acetic acid is titrated with 0.1M NaOH.Calculate the pH of the solution when 10ml of NaOH is added
March 12, 2013 by Anonymous

Human Biology
Why can phosphorus-32 be used to detect the presence of nucleic acids, but not amino acids? Nucleic acids contain the phosphorus atom, but amino acids do not.
January 1, 2007 by Jen

CHEMISTRY
******* Please check. Also check sig figs. Ion Concentrations 1.) A solution is prepared by dissolving 5.00 g of stannic nitrate in enough water to make 250.0 mL of stock solution. A 15.0 mL aliquot (portion) of this stock solution is then removed and added to 75.0 mL of water...
October 25, 2013 by Anonymous

Chemistry
HOBr (aq) <----> H+ (aq) + OBr- (aq), Ka = 2.3 x 10^-9 Hypobromous acid, HOBr, is a weak acid that dissociates in water, as represented by the equation. (a) Calculate the value of [H+] in a solution of HOBr that has a pH of 4.95. Ans: 1.1 * 10^-5 M (b) Write the ...
April 10, 2012 by Confused

General Chemistry
Vinegar is a 5.0% solution by weight of acetic acid in water. Given that the pH for vinegar is 2.41 and that Ka= 1.8E-5 and the density s 1.00g/mL, what is the percent dissociation of acetic acid in vinegar? I know the % dissociation equals the amount which did dissociate 5.0%...
February 27, 2008 by Matt

Chemistry
Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, HC2H3O2. For 20.0 milliliters of the vinegar 26.7 milliliters of 0.600-molar NaOH solution was required. What was the concentration of acetic acid in the vinegar if no other acid was ...
May 23, 2007 by Sarah

biochemistry
calculate the isoelectric point of each of the following amino acids: glutamic acid, serine, histidine, lysine, tyrosine, and arginine
October 25, 2010 by nicole

Analytical Chemistry
A 22.617 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 70.407 g of water. A 10.883 g aliquot of this solution is then titrated with 0.1072 M HCl. It required 29.32 mL of the HCl solution to reach the methyl red ...
February 28, 2013 by Sam

chemistry
Calculate the molality of acetone in an aqueous solution with a mole fraction for ace- tone of 0.171. Answer in units of m
September 16, 2012 by cheri

chemistry
The pH of a 0.164 M aqueous solution of dimethylamine is 11.98. Write the ionization equation, calculate the values of Kb and pKa and comment on strength of the
September 27, 2013 by nica

chem
Calculate the mass of anhydrous sodium carbonate Na2Co3 required to prepare 2.5 litres of 0.50M aqueous solution.(Na=23,C=12,O=16)
September 29, 2015 by sharon

Chemistry
Calculate the volume 0.1 M of acetic acid and 0.1 M sodium acetate required to prepare 300 mL of 0.05 M acetate buffer solution at pH 5.5.
October 26, 2015 by Anonymous

Chemistry
A teacher prepares a saturated NaCli solution at 55 Degree C. What is the % by mass 9m/m0 of this solution? what is the concentration of this solution expressed in ppm? What is the molality of this solution? If the density of the solution is 1.07 g/ml, what is the % m/v of ...
March 21, 2007 by nancy

Chemistry
Given that the pKa for Acetic Acid is 4.77, calculate the expected pH of the buffer solutions using the Henderson-Hasselbalch equation and the concentrations of Acetic Acid and Acetate added to the 250 ml Erlenmeyer flask
March 18, 2011 by M_Joe

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
Assuming that the total volume does not change after 0.200 g of KCl is added to 1.0 L of a saturated aqueous solution of AgCl, calculate the number of moles of Ag+ ion in the solution after equilibrium has been reestablished. For AgCl, Ksp = 1.8 1010
November 16, 2011 by Stacy

Chemistry
How do I do this problem, I am very confused on how to even begin: An aqueous solution contains 0.167 M ascorbic acid (H2C6H6O6) and 0.194 M hydroiodic acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. [C6H6O62-] =? mol/L.
April 28, 2012 by Dan

Chemistry
A 2% solution of Hydrochloric acid is required for a procedure. A 5% solution is availabe. How much of the 5% solution will be required to make 1 L of solution?
April 14, 2009 by Jessi

Chem- PLZ HELP!
Consider 100g of 5.5% (mass) solution of NaNO3. Complete the following table, before calculating molarity, molality and mole fraction of NaNO3. Solute(NaNO3)|Solvent(H2O|Soln Mass(g) 100g Moles ---- RefInfo 85g/mol 18.02g/mol Density=1.00g/mol (This goes under "soln" as ...
March 3, 2011 by Kate

Chemistry
What volume of a 5.0% (v/v) Acetic Acid solution will contain 40.mL of Acetic Acid?
April 12, 2016 by Michaela

Help --->Chemistry
1) Complete and balance the following chemical reactins: 2HCI(aq)+Pb(NO3)2(aq)---> 2HI(aq)+K2SO3(s)---> Pb(NO3)2(aq)+2KCI(aq)---> Ba(NO3)2(aq)+Na2SO4(aq)---> K2CO3(aq)+Ba(NO3)2(aq)---> HCI(aq)+AgNO3(aq)---> 2) How could you separate gold from a mixture of ...
February 26, 2012 by melek

chemistry
a patient receives 250 mL of a 4.0% (m/v) amino acid solution twice a day. a) how many grams of amino acids are in 250mL of solution? b) how many grams of amino acids does the patient receive in one day? For a) I came up w/10g and for b) I came up w/ 20g in 1 day. Is this ...
May 4, 2011 by Connie

Buffer Solution
You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 93 mL of 1.00 M NaOH solution?
April 13, 2011 by Nicole

Chemistery
An aqueous solution of calcium chloride contains 2 g of calcium chloride (molar mass 110.98 g mol-1) in 100 ml. Calculate the concentration of chloride ion in the solution any help their
January 20, 2009 by Slaysliver

Chemistry
A buffer contains 5.00 M acetic acid and 5.00 M acetate anion. Gaseous HCl (0.010 mole) is added to 1.00 L of this buffer solution (the total volume does not change). For this buffer solution, the initial pH is_______and the final pH after the addition of the HCl gas is_______...
May 2, 2010 by Ivana

Chemistry
When an aqueous solution of sodium hydroxide, NaOH, is added to an aqueous solution of chromium(III) nitrate, Cr(NO3)3, a precipitate of chromium(III) hydroxide, Cr(OH)3, forms. Write a balanced net ionic equation for this reaction.
March 1, 2016 by Tina

science
how do you do this question An aqueous solution of calcium chloride contains 2 grams of calcium chloride ( molar mass 110.98 g mol-1) in 100 ml calculate the concentration of chloride ion (Cl-) in the solution
January 22, 2009 by Slaysliver

Chemistry
How do you calculate the following: Starting with a liter of 1M sodium acetate (pka of acetic acid = 4.75 ), calculate the number of moles of strong acid or strong base needed to make a pH buffer effective at pH = 4.o ? Thank you!
June 29, 2011 by Maria

chemistry
What are the solute particles present in aqueous solutions of each compound? (Select all that apply.) acetic acid
January 9, 2011 by Anonymous

Chemisrtry
What is the PH of a solution that results from mixing together equal volumes of a 0.150 M Solution of acetic acid and a 0.0750 M solution of sodium hydroxide?
March 30, 2010 by Ginger29

CHM
From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.
February 9, 2010 by CC

Chemistry
From the following: 1) pure water 2) 0.01 m solution of table sugar (C12H22O11) 3) 0.01 m solution of NaCl 4) 0.01 m solution of CaCl2 Choose the one with the largest van't Hoff factor and hence the lowest freezing point.
February 9, 2010 by CC

chemistry
If 0.60 mg of KCl is present in 3.0 L of aqueous solution, what is the concentration in terms of the following?
July 25, 2010 by Norma

chemistry
1.000 g of bronze was dissolved in the mixture of acids. The solution was transferred into 100 ml volumetric flask and filled to the mark. 10 ml aliquote of this solution was transferred into another 100 ml flask and diluted to the mark. 10 ml of the resulting solution was ...
September 16, 2016 by EMEKA

Math
Alyssa is a chemist with Gemco Pharmaceutical Company. She needs to prepare 12 ounces of 9% hydrochloric acid solution. The only solution she currently has available are 4% and 12% hydrocholoric acid. How much should she use of each solution to obtain the needed solution.
March 9, 2011 by John

chemistry
in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is: I2(aq)+ 2 S2O3^2-(aq)---->S4O6^2-(aq)+ 2I...
November 17, 2011 by Yulieth

CHEM HELP PLEASE
1- the vinegar soltion sold in the store is about 5% acetic acid. Assuming that the solution has a density of 1.01 g/mL, calculate the pH of vinegar.
May 20, 2013 by JOJO

chem
Given that the density of the supplied vinegar solution in this experiment is 1.025 g/mL, calculate the % acetic acid found in the vinegar sample.
April 15, 2014 by john

chemistry
Prepare 500mL of a 0.200 M acetate buffer at pH 4.90 using only pure acetic acid, 3M NaOH, and water. 1) Add acetic acid to ~400mL of water in a 500 mL beaker. How many grams of acetic acid are needed? 2)Add 3 M NaOH solution until pH is 4.90. What volume of NaOH is needed? (...
September 5, 2011 by Ryn

chemistry
25ml of a solution of na2c03 having a specific gravity of 1.25g ml required 32.9ml of a solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N Hes04 that will be completely neutralized by 125g of nac03 solution The ...
February 16, 2013 by Fai

Chemistry
Five (5.00) grams of glucose, C6H12)6, is dissolved in 500.0 grams of acetic acid. What is the new freezing point and boiling point for the solution? Kf acetic acid = 3.90, Kb acetic acid = 3.07 (normal freezing point for acetic acid = 16.60 dg C, boiling point = 118.5 dg C) f...
August 9, 2007 by lana

chemistry
How much of each solution will you need to mix to obtain 100 120 ml of 20 mM buffer pH 4.0? A. 35 ml sodium acetate + 90 ml acetic acid B. 100 ml sodium acetate + 16 ml acetic acid C. 16 ml sodium acetate + 100 ml acetic acid D. 90 ml sodium acetate + 35 ml acetic acid
September 12, 2014 by saraly

chemistry
The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely ...
February 24, 2012 by Katie

chemistry
Calculate the hydrogen ion concentration and the pH of each of the following solutions of strong acids. (a) 0.00010 M HCl if you could just explain how to do this that would be great! thanks
March 23, 2009 by lyne

chemistry
Titration was used to determine the molarity of acetic acid in vinegar. A primary standard solution of KHP was used to standardize the NaOH. 1. When performing this experiment, impure KHP was used to standardize the NaOH solution. If the impurity is neither acidic or basic, ...
March 11, 2014 by Sandy

chemistry
A 0.1943g iron ore sample was dissolved in hydrochloric acid and the iron was obtained as Fe 2+ (aq). The iron solution was titrated with Ce 4+ solution according to the balanced chemical reaction shown below.After calculation, it was found that 0.0237 g of iron from the ore ...
October 17, 2010 by matt

Chemistry
An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to a total solution volume of 2.00 liters. If the molarity of the solution is .359 M and the molality of the solution is .354, what is the mass percent of the solution?
February 19, 2012 by Adam

Organic Chemistry
calculate how much of 10% aqueous sodium carbonate would be required to neutralize the solution (This is during the preparation of benzocaine)
April 3, 2012 by Emma

Chemistry
Caprytic acid, also called octanoic acid, is an 8-carbon fatty acid that is used as a sanitizer on dairy equipment that comes in contact with milk. The acid has a molar mass of 144.21 g/mol. An aqueous solution of the sanitizer containing 12.25 g/L has a pH of 2.98. What is ...
January 5, 2014 by Anonymous

Chemistry
Q1. A 0.5 g mixture of Cu2O and CuO contain 0.425 g Cu. What is the mass of CuO in the mixture? Q2. A chemist wants to prepare 0.5 M HCl. The label of a commercial hydrochloric acid shows that S.G. =1.18 and concentration of HCl was 37%. Calculate the volume of commercial ...
October 28, 2014 by Adem Rutger

chemistry
For the following: a)give the reaction type; b)complete and balance the reaction; c)using your answer to part b, determine how much of the other reactant is needed, and how much of each product will be formed, for the given starting amount (below); and d) calculate the percent...
February 18, 2008 by stephen

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
a 10.0mL vinegar sample was completely neutralized by 22.5mL 0.2M NaOH solution. calculate molarity and % of acetic acid in vinegar. please help
April 26, 2010 by confused

chemistry buffer
Calculate the amount of sodium acetate to be added to 100ml of a 0.100M acetic acid (pka=4.76) solution to obtain a buffer of pH 4.50.
April 24, 2016 by Mansura

chemistry
Concentrated hydrochloric acid is a 38% solution of hcl in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of a 1:200 hcl solution? My calculation 500ml x 1:200 =2.5 1:200 means 1gm/200ml 2.5 x 36.5 = 91....
August 9, 2012 by Fai

Chemistry
Arrange the following aqueous solutions in order of increasing boiling point, explain your answer: 0.120 m glucose (C6H12O6), 0.05 m LiBr, 0.05 m Zn(NO3)2. Using data the boiling point constants given in the test book, calculate the boiling points of each of the above aqueous ...
February 15, 2013 by m

ap chemistry
How many moles of sodium acetate (NaCH3COO) must be added to 1.000 liter of a 0.500M solution of acetic acid (CH3COOH) to produce a pH of 5.027? The ionization constant of acetic acid is 1.8 10−5. Answer in units of mol
February 4, 2014 by gabriella

Chemistry
If 20ml of glacial acetic acid (pure HC2H3O2) is diluted to 1.5L with water, what is the pH of the resulting solution. The density of glacial acetic acid is 1.08g/ml
August 2, 2010 by Kristen

chemistry
Please judge my answer: Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after 17 mL of the KOH solution has been added. Assume the Ka of acetic acid is 1.8 x 10-5. Answer: The equation for this...
April 15, 2008 by Abigail

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

Chemistry
Carbonates react with acids to form a salt, water and carbon dioxide gas. When 22.1 g of calcium carbonate are reacted with sufficient hydrochloric acid, how many grams of calcium chloride will be produced?
February 28, 2014 by Doreen

Chemistry
Experimental results for hydrochloric acid (neutralization) are always a little less negative than the usual constant of heat of neutralization for strong acids and bases (-57.35kJ). Suggest reasons for this.
November 17, 2015 by Wex

Chemistry
100 mL 0.1 M sodium acetate solution is mixed with 50 mL 0.1 M acetic acid. If now 0.937 mL of 1 M sodium hydroxide is added to the buffer what is the change in pH? pKa (acetic acid) = 4.76
January 9, 2016 by Jamie

College Chem.
If 20.0 mL of glacial acetic acid (pure HC2H3O2) is diluted to 1.30 L with water, what is the pH of the resulting solution? The density of glacial acetic acid is 1.05 g/mL.
March 8, 2010 by Katherine

Chemistry
What is the hydrogen-ion concentration of a solution that is 0.016M in acetic acid and 0.016M in sodium acetate at 25 Celsius? The Ka for acetic acid is 1.8x10^-5
March 22, 2013 by Viv

Chemistry
To titrate the acetic acid in 10.0 mL of vinegar sample, 25.5mL of 0.5M sodium hydroxide solution is needed. What is the concentration of acetic acid in the vinegar?
April 30, 2015 by Anonymous

chemistry
If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this reaction? 2.) what is the ...
April 13, 2014 by Alison

Some Lab Question (s)
Yes...another calculation problem. Rxn: 1ml isopentyl alcohol + 1.5ml glacial acetic acid + 3 drops sulfuric acid=> isopentyl acetate to calculate the theoretical yield.. I know that the acetic acid is in excess but how would I calculate the theoretical yield? is it just ...
March 8, 2008 by ~christina~

Chemistry- Dr.Bob222
What is the pH of a solution that is 0.150 M in acetic solution and 0.300 M in sodium acetate? The Ka of acetic acid is 1.8 x 10^-5. My work: pH= pKa + log (base/acid) pH= -log (1.8 x 10^-5) + log (0.300/0.150) pH=5
April 11, 2016 by Nevaeh

chemistry
When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2 phases when each of the ...
February 15, 2011 by Andrea

chem
When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2 phases when each of the ...
March 1, 2011 by crystal

CHEMistry
A 2.50-g sample of powdered zinc is added to 100.0 mL of a 2.00-M aqueous solution of hydrobromic acid in a calorimeter. The total heat capacity of the calorimeter and solution is 448 J/K. The observed increase in temperature is 21.1 K at a constant pressure of one bar. Using ...
March 27, 2013 by HELP

chemistry
A 2.50-g sample of powdered zinc is added to 100.0 mL of a 2.00-M aqueous solution of hydrobromic acid in a calorimeter. The total heat capacity of the calorimeter and solution is 448 J/C. The observed increase in temperature is 21.1 C at a constant pressure of one atm. ...
October 27, 2013 by brianna

General Chemistry
I add 5 drops Potassium Iodide (KI) to 5 drops lead nitrate (PbNO3). The solution is centrifuged and the aqueous layer is discarded. I then add 5 drops of nitric acid (HNO3), 5 drops of hydrogen peroxide and 10 drops of dichloroethane (C2H4Cl2) to the precipitate. The solution...
October 8, 2012 by Kay

Chemisty
Calculate the mass of water in grams that could be produced from the reaction of 10.00mL 0.4122M hydrochloric acid and 35.00mL 0.1738M sodium hydroxide solution. Identify the limiting reactant.
February 28, 2012 by Missy

chemistry
for an aqueous solution having Calcl2 (2molar) and Mgcl2 (5molal) and specified gravity of solution is 1.145 calculate molality of chloride ion and molality if chloride ion.
May 10, 2013 by riya

ANALYTICAL CHEMISTRY
3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned ...
May 6, 2012 by JONESTONE

ANALYTICAL CHEMISTRY
3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned ...
May 6, 2012 by JONESTONE

Chemistry
How do these react? Some may have no reaction. a. aqueous chromium(III) nitrate plus magnesium metal b. aqueous lithium sulfate plus aqueous barium chloride c. solid lead metal plus aqueous potassium chloride d. aqueous lithium fluoride with aqueous ammonium phosphate
April 4, 2011 by Blaire

chemistry
If 15.0 mL of glacial acetic acid (pure HC2H3O2) is diluted to 1.50 L with water, what is the pH of the resulting solution? THe density of glacial acetic acid is 1.05 g/mL
July 16, 2010 by Danielle

chemistry
I need to calculate the Ka of the acetic acid from two titration curves involving acetic acid. Then report the % error in each how do i go about this? what values do i need to know?
May 9, 2008 by Amy

Chemistry
Calculate the pH at the equivalence point of 25.0 mL of a 0.100 M acetic acid, CH3COOH, titrated with a 0.100 M sodium hydroxide, NaOH. Ka of acetic acid is 1x10^-5
April 11, 2010 by Anonymous

chemistry
Calculate the approximate pH of a 0.1 M solution of ethanoic acid at 298 K, given that the dissociation constant, Ka, is 1.75 x 10-5 mol/L at 298 K.Ethanoic acid dissociates in aqueous solution as follows: CH3COOH(aq) + H2O H3O+(aq) + CH3COO-(aq)
April 28, 2015 by Emily

Chemistry
A 5.00 mL aliquot of vinegar (acetic acid, FW = 63 g/mol) was diluted and titrated with 0.1104 M NaOH requiring 32.88 mL. If the vinegar has a density of 1.055 g/mL, calculate its acidity as % acetic acid
June 22, 2014 by Rick

Chemistry
What will be the pH of: (a)10.0cm3 of an aqueous solution of 0.001mol dm^-3 nitric aicd, HNO3 (aq)? (b)100cm3 of an aqueous solution of 0.001mol dm^-3 nitric aicd, HNO3 (aq)? (c)0.02mol dm^-3 of potassium hydroxide solution, KOH (aq)? For (a) I got 2, (b) 1 and (c) 12.31. I am...
November 17, 2009 by Anonymous

chem
what is a liquid solution and a gaseous solution? Do you intend to ask us to name a liquid solution and a gaseous solution. One example of a liquid solution is vinegar. It is acetic acid in water. That is a solution of two liquids. An example of a gaseous solution is air. ...
May 14, 2007 by revie

chemistry
25ml of a solution of na2c03 having a specific gravity of 1.25g ml required 32.9ml of a solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N heso4 that will be compltetly neutralized by 125g of na2c03 solution The ...
February 17, 2013 by Fai

Chemistry
Concentrated hydrochloric acid is a 38% solution of HCL in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of 1:200 HCL solution? The answer is not 2.12ml My calculation: 1.18g/ml x 1000ml x 0.38/36.5 = 12...
July 29, 2012 by Fai

chemistry
in an experiment, a 4.000grams sample of aluminum metal is added to a solution containing 5.000grams of dissolved iron chloride. the reaction results in the formation of aluminum chloride and metallic iron. when the reaction is complete, unreacted aluminum remains, and this ...
March 26, 2014 by Anonymous

CHEMISTRY
How would you prepare 750 ml of a 10 fold dilution of a 17 M solution of acetic acid? How would you prepare 200 ml of a 20 fold dilution of a 17 M solution of acetic acid? please explain and show me the calculations.
March 31, 2016 by rockey

Chemistry
20.2 mL of 0.234 M FeCl3 is added to 42.5 mL of 0.453 M NaOH. Iron(III) hydroxide precipitates. NaCl remains in aqueous solution. 1) What mass (in g) of Fe(OH)3 should precipitate (assuming 100% yield)? 2) How many moles of the excess reactant remain after the reaction is ...
November 23, 2010 by Lilly

chemistry
Can Anyone Help Me With This Solubility Problem? An aqueous solution of 1.90 M AgNO3 is slowly added from a buret to an aqueous solution of 0.0100 M Cl- and 0.250 M I-. a) Which ion, Cl- or I-, is the first to precipitate? b) When the second ion begins to precipitate, what is ...
April 21, 2010 by anonymous

chemistry
The pKa for hydrochloric acid is −6.0. What is the concentration of HCl(aq) we would expect to find in a 1 M solution of hydrochloric acid? What pH would we expect? how do you solve this problem?
July 6, 2010 by Jin

chemistry
A chemist must dilute of M aqueous magnesium fluoride solution until the concentration falls to M . He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters
December 3, 2012 by jay

Chemistry I - University
Suppose 5.87 g of barium acetate is dissolved in 300. mL of a 71.0 m M aqueous solution of sodium chromate. calculate the final molarity of barium cation in the solution. You can assume the volume of the solution doesn't change when the barium acetate is dissolved in it...
September 27, 2015 by Jessica

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