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October 25, 2014

Search: a solution is prepared by adding 50 ml of .050 M HCl to 150ml of .10M HNO3 calculate the concentrations of all species in this solution

Number of results: 37,789

Chemistry
2. 12.5 ml of 0.280M HNO3 and 5.0mL of 0.920M KOH are mixed. To make the resulting solution neutral, which of the following should be added? -1.1 mol HCl -1.69 mL of 0.650M HBr -0.55 mmol Mg(OH)2 -2.2mL of 0.50M LiOH -none of the above; already neutral -KOH is in excess by 0....
January 28, 2011 by Sally

Chemistry
A buffer is prepared by transferring equal concentrations of the components of the conjugate pair, C6H5COOH and C6H5COONa, into a beaker. What is the approximate pH of the buffer? (Ka = 6.5  105) a) 2.81 b) 4.19 c) 7.00 d) 9.81 e) 11.19
July 31, 2012 by Greg

chemistry
I have no idea how to solve this problem, please help me out.... thanks a) A liter of a solution saturated at 25degree with calcium oxalate, CaC2O4, is evaporated to dryness, giving a 0.0061gm residue of CaC2O4. calculate the concentrations of the ions, and molar solubility ...
April 6, 2007 by wendy

chemistry
Calculating final concentrations. Your instructor asks you to add the specified quantities of 2M Tris pH 8.0 buffer to 140 ml of distilled water. Calculate the final concentration and dilution factor of each solution. a)10ml b)20ml c)140ml
August 27, 2012 by anonymous

Chemistry
A nitric acid solution is found to have a pH of 2.70. Determine [H3O+],[OH-], and the number of moles of HNO3 required to make 5.50L of the solution.
April 24, 2011 by Jessica

Chemistry
How many milliliters of 0.201 M Ba(OH)2 solution are needed to completely neutralize 12.8 mL of 0.369 M HNO3 solution? The reaction is Ba(OH)2(aq) + 2HNO3(aq) → Ba(NO3)2(aq) + 2H2O(l)
November 1, 2011 by Mary

Chemistry
1.600g of a metallic oxide of type MO were dissolved in100mL 1.0M HCl. The resulting liquid was made up to 500mL with distilled water. 25.00mL of the solution ,then required 21.02mL of 0.1020 M of NaOH for neutralization. Calculate the mass of the oxide combining with 1 mole ...
March 7, 2014 by Dash

chemistry
Describe how to prepare 1 liter of 0.5N solution of HCl from concentrated HCl. H=1, Cl=35.5, spgr=1.19, 37.2%
September 7, 2010 by j

Chemistry
How many milliliters of a 0.75 M HCL solution do you need to obtain 0.0040 mol of HCL?
November 17, 2010 by Cindy

chemistry
How many grams of HCl must be added to make 1 liter of a 2.0 M HCl solution
June 23, 2011 by Chris

chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
September 27, 2012 by Rachael

chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
September 27, 2012 by Rachael

Chemistry
How many milliliters of 7.00M HCl solution are needed to obtain 0.200mol of HCl?
October 15, 2012 by Chris

Chemistry
How many mL of concentrated HCl (aq) (36.0% HCl by mass, d=1.18 g/mL are required to produce 5.00 L of a solution with a pH =2.10?
March 11, 2012 by Maddie10

chem
how to prepare 300ml of .250M HCl from a 1.00 M HCl stock solution
November 21, 2012 by chemdummy

AP chemistry! Please Help
Consider the reaction of peroxydisulfate ion (S2O82-) with iodide ion (I -) in aqueous solution. S2O82-(aq) + 3 I -(aq) 2 SO42-(aq) + I3-(aq) At a particular temperature, the rate of disappearance of S2O82- varies with reactant concentrations in the following manner. ...
January 5, 2012 by Kaanha

chemisrty
what voule of 12M hydrochloric acid must be diluted with distilled water to prepare 5.0L of 0.10M HCl?
December 12, 2010 by Cassie

Chemistry II
Arrange the following 0.10M solutions in order of increasing pH: a. Nacl b. NH4CL C. HCL D. NaCH3CO2 e. KOH
April 30, 2013 by Liz

chemistry
What is the concentration (in M) of H+ present in the solution formed by mixing 20 mL of 0.100 M HCl and 10.0 mL of 0.500 M HCl
August 2, 2009 by Norm

Chemistry Lab
If 12.50 mL of 0.324 M HCl is diluted to 250.00 mL, what is the concentration of HCl in the final solution?
May 10, 2011 by Thao

chemistry
To what volume must 10.0ml of 5.00 M HCL be diluted to make a 0.500 M HCL solution ?
September 18, 2011 by Anonymous

chemistry
a bottle of 12.o M HCL has only 49.8 ml left in it. What is the molarity of the hcl if the solution is diluted to 350ml.
October 14, 2011 by wendy

CHEMISTRY
TO PREPARE 10% HCL SOLUTION ,HOW MUCH AMOUNT OF 35%HCL IS USED.SPECIFIC GRAVITY 1.18
March 21, 2012 by Anonymous

AP Chem
how many milliliters of 0.10 M HCl must be added to 50.0 mL of 0.40 HCl to give a final solution that has a molarity of 0.25 M?
August 21, 2012 by Allie

chemistry
describe the preparation of 100ml of 6.0M HCl from a concentrated solution that has a specific gravity of 1.18 and is 37% w/w HCl.
November 27, 2012 by Eugene

chemistry
pls help me. A buffer was prepared by dissolving 0.100 mol of the weak acid HA (Ka = 1.00 10−5) plus 0.050 mol of its conjugate base Na+A− in 1.00 L. Find the pH.
December 1, 2012 by canas

Chemistry
A 100.0mL solution containing aqueous HCl and HBr was titrated with 0.1290M NaOH. The volume of base required to neutralize the acid was 47.56mL. Aqueous AgNO3 was then added to precipitate the Cl- and Br- ions as AgCl and AgBr. The mass of the silver halides obtained was 0....
November 19, 2012 by Melia

Chem Titration and pH
Calculate the pH at 0mL, 5mL,...40mL for a 10.0mL aliquote of 0.100M Na3AsO4 (weak base) titrated with 0.100M HCl pKa1 = 2.25 pKa2 = 6.77 pKa3 = 11.60 Thank you First you should write equations to know where we are in the titration. At the beginning, we have the hydrolysis of ...
October 7, 2006 by julie

Chemistry II
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to 50.0mL of ethyl alcohol,C2H6O(d=0.798 g/mL). Assume that the volumes are additive. From this information calculate the molarity of acetone in the ...
September 27, 2009 by Mandy

Chemistry
Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.70. You have in front of you * 100 mL of 6.0010−2 M HCl, * 100 mL of 5.0010−2 M NaOH, and plenty of distilled water. You start to add HCl to a beaker of water when someone ...
July 9, 2009 by Saira

Titration
Which of the four solutions (all same concetrations, same volume) requires: a) the greatest amount of base for complete titration? b) the greatest amount of base to titrate to any given pH? HCl, acetic acid, formic acid, HNO3. i put HCl for both... is that correct?
January 11, 2009 by Andrew

mcckc.edu
A 0.10MNaCl solution is blank (iso/hypo/hypertonic) to a 0.10M glucose solution
January 29, 2011 by paulina

chemistry
Calculate how many L of 21M HCL must be added to make 1L to .1M HCL.
May 10, 2010 by clarissa

Chemistry
Please help me with these! Thanks :) Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution. How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass ...
February 27, 2011 by Amanda

Chemistry
For the reaction of hydrazine (N2H4) in water, Kb is 3.0 10-6. H2NNH2(aq) + H2O(l) H2NNH3+(aq) + OH -(aq) Calculate the concentrations of all species and the pH of a 2.2 M solution of hydrazine in water. okay so i dont know how to do this problem because its dealing with Kb i ...
February 14, 2009 by Lori

CHEM
Help on part "c": The forensic technician at a crime scene has just prepared a luminol stock solution by adding 19.0g of luminol into a total volume of 75.0mL of H2O. a)What is the molarity of the stock solution of luminol? anwer I got: molarity of luminol solution = 1.43M b)...
October 18, 2007 by K

CHEM
Help on part "c": The forensic technician at a crime scene has just prepared a luminol stock solution by adding 19.0g of luminol into a total volume of 75.0mL of H2O. a)What is the molarity of the stock solution of luminol? answer I got: molarity of luminol solution = 1.43M b)...
October 18, 2007 by K

chemistry
A 40 mL sample of 0.25 M NaCHOO is titrated with 0.2 M HCl. What is the pH of the solution after 140 mL of HCl has been added?
March 2, 2011 by Eddy

Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
June 8, 2010 by Karla

Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
June 8, 2010 by Karla

Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
June 8, 2010 by Karla

Science: Chem
How many milliliters of 0.10 M HCl must be added to 52.0 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M?
November 1, 2011 by Lach

chemistry
What is the concentration of an HCl solution if 23.1 mL of HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 I cannot get the right answer
December 5, 2011 by corey

chemistry
What is the molarity of a solution that contains 31.0 HCl in 5.00kg water? (molar mass of HCl=36.46 g/mol)
January 22, 2012 by jim

Chemistry
How many grams of a 12.5% (w/w) aqueous solution of HCl do you have to measure out if yo need 32g Of HCl?
August 9, 2012 by Jim

chemistry
How would a chemist make up 100g of 10% aqueous solution of HCl (using 12M HCl)
September 9, 2012 by Dena

Chemistry
How many moles of HCl are present in a 50mL 3M solution of HCl?
January 12, 2011 by Jess

Chemistry
How many moles of HCl are present in a 50mL 3M solution of HCl?
January 12, 2011 by Jess

chemistry
How would you prepare a standard solution of 1m HCL(5.6 of HCL is 1.18)?
March 8, 2011 by Joy

Chemistry
what is the concentration of hcl when 55 ml of this hcl solution neutralize 15ml of .9m ca(oh)2
February 10, 2012 by Faith

Chemistry
I am having trouble getting this starting and figuring out the correct steps...the problem is Calculate the final concentration of the solution in each question 1) Water is added to 0.270 L of a 6.00M HCl solution to give a volume of 3.00 L (Express answers with the appropiate...
December 9, 2010 by TT

Chemistry
You have 500 mL of a 5.0 M solution of nitric acid HNO3 (63.01 g / mol) dissolved in water. How many grams of nitrogen does the solution contain?
April 13, 2013 by Tina

Chemistry
A student has 600.0 mL of a 0.30M solution of HNO3. How much water must she add in order to make it a 0.15 M solution? Be careful how this question is answered.
March 14, 2014 by Katie

chemistry
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 6.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
February 4, 2012 by Katie

chemistry
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 6.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
February 5, 2012 by Katie

CHEMISTRY
a) Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). b) Calculate the change in pH when 4.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
March 27, 2012 by Jematormal91

chemistry
Calculate the pH at each stage in the titration of 25.0 ml 0.10 M KOH(aq) with 0.25 M HCl(aq). 1. Initiall ( before titration). 2. After addition of 5 ml of HCl. 3. After addition of 9.5 ml of HCl. 4. At the equivalent point. 5. After addition of 12 ml of HCl
April 30, 2011 by jonah

CHEMISTRY
Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN- ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ...
December 3, 2013 by Anonymous

Chemistry
Calculate the concentrations of all species present in a 0.33 M solution of ethylammonium chloride (C2H5NH3Cl). Okay so i tried doing HA = H + A ice table regular it doesnt work idk what Ka to use. b/c of hte chloride. i have to find [C2H5NH2][H+][OH -][C2H5NH3+][Cl -]
February 15, 2009 by Spencer

CHEMISTRY- boiling point
0.1m aqueous solution of HCl and 0.1m aqueous solution of C6H12O6. calculate the boiling point of each i know the eq. dTb=Kbm but i have no temperatures. this is the question
October 15, 2010 by lulu78

chemistry
what volume of a 0.34M MgCI2, solution is required to make 250ml of a 0.10M solution by dilution?
February 13, 2011 by twynna

chemistry
What volume of a 0.34M MgCL2 solution is required to make 250ml of a 0.10M solution by dilution?
March 12, 2011 by n/a

chemistry
A co-op student designed an experiment to collect hydrogen gas by reacting iron with a hydrochloric acid (HCl) solution. The students co-op supervisor suggested that aluminum can also be included to generate hydrogen gas: Fe + 2 HCl → 2 FeCl2 + H2 2 Al + 6 HCl → 2...
October 17, 2014 by Brooke

Chemistry
I have another similar problem. I have calculated everything given (Correctly), but I can't seem to get the right pH for the stoichiometric point (I keep getting 7.16) Question: Suppose that 50.0 mL of 0.25 M CH3NH2(aq) is titrated with 0.35 M HCl(aq). Refer to table 1 and ...
March 12, 2010 by Val

CHEM HELPP!!!
Imagine that you are in chemistry lab and need to make 1.00 of a solution with a pH of 2.50. You have in front of you 100 of 7.0010−2 , HCL 100 of 5.0010−2 , and NaOH plenty of distilled water. You start to add HCL to a beaker of water when someone asks you a ...
March 10, 2009 by Ashley

Chemistry
Potency of HCl(l) is 35% (w/w) and density 1.19 g/cm3. Calculate the molarity of the Acid? [Molecular Weight of HCl is 36.5].
January 25, 2011 by Anik

Science
5.00 ml of 1.90M HCl is diluted to 0.400l. calculate the pH of the HCl?
September 25, 2012 by Erik

chemistry
A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?
February 22, 2011 by E

chemistry
indicate the concentration of each ion presentin the solution formed by mixing 20mL of .1M HCL and 10mL of .22 M HCL
December 6, 2011 by fdg

chem
How many liters of 1.00 M HCl must be added to 50.0 ml of 0.500 M HCl to give a solution whose concentration is 0.750 M?
January 2, 2012 by Anonymous

science
a bottel contains 500 ml of 2.4 M HCL. How much water should be added to dilute it to 1.6 M HCL. Solution
June 16, 2013 by aarti

pH- part 2
how much .10M Base (in mL) is needed to neutralize 8.00mL of .10M Acid? base- NaOH, acid- HCl, base volume (mL)- ? base- NaOH, acid- HC2H3O2, base volume (mL)- ? VaNa=VbNb Vb= 8ml*.10N/.10N= 8m.
April 14, 2007 by Christine

Chemistry
1) Using a table of standard electrode potentials (such as the one in your textbook), calculate the standard cell potential for a cell made by placing a zinc electrode in a Zn2+(aq) solution which is connected by an electrolyte to a Ag+(aq) solution containing a silver ...
May 13, 2014 by CHEM HELP ASAP

Chem-BufferQ
You have a solution of .5 L of 1.74g of NH3 and 4.15g of (NH4)2SO4. How many ml of 14M HCl is required for a pH of 9.00? I don't know how to go finish this one. I thought about figuring the concentrations of each (NH3, NH4), making an ice table and solving for the additino of...
November 14, 2011 by Matt

science-CHEM
Fe+3 + SCN- ==Fe(SCN)+2 if adding NaOH will form precipitates, but what is the precipitates' formula? And after this reaction, if we add HCl to the reaction, will the precipitates dessolve? What does the HCl affect the reaction? THX
November 21, 2008 by Nicola

chemistry
if 50.0 mLs of HCl of unknown concentration is titrated to neutrality with 90.0 mL of .650 M NaOH. calculate the molarity of the HCl
November 14, 2011 by susan

chemistry
if 50.0 mLs of HCl of unknown concentration is titrated to neutrality with 90.0 mL of .650 M NaOH. calculate the molarity of the HCl
November 14, 2011 by susan

Chemistry
I am about to do an extraction experiment, and needed help with a question to improve my understanding. Any help appreciated. 1. You have 150 ml of a solution of benzoic acid in water estimated to contain about 5g of the acid. The distribution coeffcient of benzoic acid in ...
March 12, 2010 by Natasha

Chemistry
What is the concentration, in g/L, of a solution containing 0.65 mol HNO3 in 150 mL solution? Give your answer rounded to nearest whole number, followed by a space and the units.
June 13, 2012 by Sonakshi Sinha

chemistry- absorbance & transmittance
An unknown was prepared with the concentration of 0.000120 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1750.0 M1. The expected absorbance and %T ...
February 16, 2007 by christine

Chemistry
Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN- ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ...
December 3, 2013 by Anonymous

Analytical chemistry
What is a pH of 20 mL of 0.08 M NH3 added to 40 mL of 0.04 M HCl? NH3 + HCl = NH4+ + Cl- c(NH3)=(0.02L * 0.08M)/0.06L= 0.02667 M c(HCl)=(0.04L * 0.04M)/0.06L= 0.02667 M c(NH4+)=c(HCl) Kb=[NH4+][OH-]/[NH3] Kb=1.76*10^(-5) So i tried to calculate it like this: Kb=[OH-] pOH=4....
September 2, 2013 by Gloria

chemistry
A mixture was formed by adding 4.56g of KCL to water to make 175mL of solution. The density if the solution is 1.12g/mL. Whatis the mass percent and what is the molarity of the potassium chloride solution?
August 8, 2013 by joshua

chemistry
what simple test would you use to identify the possible presence of HCl(aq)? What result do you expect if the solution is HCl(aq)?
October 16, 2008 by Lili

chemistry
I need 500 ml of 0.10 m HCL solution. I have a 3.785 liter container of HCL at 31.45% concentration. How do I acheive my objective?
October 16, 2010 by Daniel

Lone Peak High
How much of a stock (18.5 M) HCl solution would be required to make 100mL of 0.025 M HCl?
June 7, 2014 by Annie

algebra
a chemist needs 10 liters of a 25% acid solution. the solution is to be mixed from three solutions whose acid concentrations are 10% 20% 50% how may liters of each solution should the chmist use to satisfy the following? a use as little as possible of the 50% solution b use as...
April 26, 2008 by sandy

Biochemistry
Calculate the pH that would result if 0.40mL of 1.50 M HCl is added to 12.0 mL of a 0.065 M solution of the fully deprotonated form of the tripeptide glu-asn-leu. I know I'm supposed to do an ICE table... and the equation will look like this initially: deprotonated + HCl ---&...
January 17, 2009 by Andrew

Chem
find pH of 0.050 M HCLO4 plus 0.050 M HBr> You must consider activities>
November 12, 2008 by Erica

Chemistry
I did an experiment on Buffers: In a polystyrene beaker, mix 20 ml of 0.1M Acetic acid ad 25 ml of 0.1 M sodium acetate and immediately measure the pH. Remove the electrode and add 5 ml of 0.1 M HCL to this buffer. Stir the solution and measure the pH. This is my data: Conc.of...
July 16, 2009 by Saira

AP Chemistry
A solution is prepared by mixing 0.0200 mol CH2Cl2 and 0.0500 mol CH2Br2 at 25C. Assuming the solution is ideal, calculate the composition of the vapor (in terms of mole fractions) at 25C. At 25C, the vapor pressures of pure CH2Cl2 and pure CH2Br2 are 133 and 11.4 torr, ...
March 22, 2010 by Sarah

chemistry
A solution is prepared by mixing 0.0433 mol CH2Cl2 and 0.0623 mol CH2Br2 at 25C. Assuming the solution is ideal, calculate the composition of the vapor (in terms of mole fractions) at 25C. At 25C, the vapor pressures of pure CH2Cl2 and pure CH2Br2 are 133 and 11.4 torr, ...
May 4, 2010 by bob

Chemistry
A solution is prepared by mixing 0.0400 mol CH2Cl2 and 0.0700 mol of CH2Br2 at 25C. Assuming the solution is ideal, calculate the composition of the vapor (in terms of mole fractions) at 25C. At 25C, the vapor pressures of pure CH2Cl2 and pure CH2Br2 are 133 and 11.4 torr, ...
February 20, 2011 by Katrina

ap chemistry
Which of I) HCl II) HF III) LiOH IV) HClO2 V) HNO3 are strong acids or strong bases in water?
February 28, 2013 by cheri

Chemistry
Iron (III) hydroxide is soluble in acid: Fe(OH)3(s)3H^+(aq)-->Fe^3^+(aq)+3H2O(l) a. How many milliliters of 1.00 M HCl are needed to dissolve 1.00 g of iron (III) hydroxide? b. If you added enough HCl to dissolve the 1.00 g of iron (III) hydroxide and then diluted the ...
November 11, 2012 by Kelly

Chem
Plese tell me if these are right. A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to dryness, the dry salt residue has a mass of 3.26g. Calculate the following concentrations for the NaCl solution. a. %(m/m)= 3.26 x 100 / 15.78 = 20.7 b. %(...
November 7, 2010 by Jason

chemistry
A student placed 10 g of Mg(OH)2 into a flask and added 500ml of water. The student took 100 ml of the Mg(OH)2 solution and reacted with HCl(aq). If 13.75 ml of 0.010M HCL reacted with the OH(aq), was was the concentration of hydroxide ion in the 100 ml solution?
November 7, 2011 by Anne

chemistry
What is the pH of the solution created by combining 2.80 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)? mL of NaOH pH w/HCl pH w/HC2H3O2 2.80 ? ? okay, so i tried m1v1=m2v2 and when i got m2 i would input it in -log(H+) to...
July 9, 2008 by UN

Chemistry
Consider the following chemical reaction 2HCL+ Ca(OH)2 CaCl2+2H2O You have mixed 30.00ml of 0.150 M HCl solution with 20.00ml of 0.100m Ca(OH)2 solution what is the molarity of the HCl, Ca( OH)2 and CaCl2 after the reaction has stopped
December 3, 2013 by Ruffles

Science
How do you calculate the preparation of 0.1M HCl using 33% HCl?
March 20, 2014 by Raksha

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