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September 15, 2014

Search: Calculate the concentration of the HCl solution

Number of results: 35,497

AP Chemsitry
A solution of an unknown monoprotic weak acid was titrated with 0.100 M NaOH. The equivalence point was reached when 37.48 ML of base had been added. From a second buret, exactly 18.74 of 0.100 M HCl were added to the titration solution. The pH was then measured with a pH ...
April 1, 2012 by Keith

College Gen. Chemistry - Science
You have 120.0 mL of a 0.245 M solution of NaCl in an open beaker. After several days, you test the solution and find that it now has a concentration of 0.348 M. How much water must have evaporated from the beaker given the new concentration?
March 25, 2014 by Anonymous

Chemistry
A solution of H2SO4 with a modal concentration 6.25m has a density of 1.300 g/ml. What is the molar concentration?
July 12, 2011 by Josh

chemistry
calculate the pH of the solution when 25.0ml of 0.0920M HCL is titrated with 0.15ml, 23.0ml, 30.0ml of 0.10M NaOH
January 23, 2013 by nathalie

chemistry
A solution of 0.178 M KOH(28.3 ml) is mixed with 28.9ml of 0.133 M HCl. Assuming that the final solution is the sum of the initial volumes, caculate: a)the molarity of the K+ cation b)the molatiry of the Cl- anion c)the pH of the final solution d)the pOH of the final solution
February 8, 2012 by helen

Gen cmehistry
Calculate the hydroxide ion concentration in an aqueous solution that contains 3.50 x 10-3 M in hydronium ion.
April 21, 2010 by asasas

Chemistry
Calculate the molar concentration of H+ ion of a solution that is 3.4510-1 M in CH3CO2H and 1.6210-3 M in the salt CH3CO2Li. CH3CO2H(aq) = CH3CO2-(aq) + H+(aq)
May 5, 2010 by Jeby

chemistry
Calculate the molar concentration of OH− ions in an 1.79 M solution of hypobromite ion (BrO−; Kb = 4.0 10-6).
March 4, 2013 by sara

chemistry
Explain why a buffer made of equal concentrations of HF and F- does not change in pH when a small amount of HCl (a strong acid) is added to the solution. Does the HCl dissociate into ions when it is added to the solution? What do the hydrogen ions react with? Why dont these ...
April 23, 2012 by Anonymous

chemistry
Explain why a buffer made of equal concentrations of HF and F- does not change in pH when a small amount of HCl (a strong acid) is added to the solution. Does the HCl dissociate into ions when it is added to the solution? What do the hydrogen ions react with? Why dont these ...
May 4, 2012 by Anonymous

chemistry
25.75 mL of a hydrochloric acid solution reacts completely with a solid sample of magnesium carbonate producing 170.8 mL of CO2 which is collected over water at 24.00C and 731.0 torr total pressure. The vapor pressure of water at 24.00C is 22.4 torr. 2 HCl(aq) + MgCO3(s) &#...
December 10, 2013 by Anonymous

chemistry
how many mililiters of a 0.27 M HCl solution are needed to react completely with 2.7 g of zinc to form zinc (II) chloride?" equation. 2 HCl + 1 Zn -----> 1 ZnCl2 + 1 H2
July 12, 2010 by Nicole

chemistry
How many grams of CaO (56.08) are required for complete reaction with HCl (36.46) in 275 mL of a 5.90 M HCl solution? CaO + 2HCl --> CaCl2 + H2O.
February 22, 2012 by Anonymous

Chemistry
How many grams of HCl are needed in order to make 0.500 liters of a 0.100 M HCl solution? 1.82 g 18.2 g 0.500 g
June 6, 2014 by Anonymous

Science
You have a stock solution of 3.5M glucose. You need a working solution of 0.5M glucose in a volume of 400ml. Explain how you make the solution. Also what is the concentration of the dilution solution?
October 15, 2012 by Helper

Chemistry
A 0.450-gram sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is: CaCO3(s)+2HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g) The excess HCl(aq) is titrated by 9.75 mL of 0.125 M NaOH(aq). Calculate the mass percentage of CaCO3(s) in ...
April 10, 2012 by Katherine

chemistry
A chemist must dilute 55.6 ml of 1.48 M aqueous silver nitrate (AgNO3) solution until the concentration falls to 1.00M. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Round your ...
August 31, 2012 by Lizzy

chem
Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) H = -118 kJ Calculate the heat when 112.4 mL of 0.500 M HCl is mixed with 300.0 mL of 0.515 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0C and that the final mixture ...
December 1, 2007 by mel

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 -
If a solution is 0.25 M KOH...how can i figure out the hydronium concentration and hydroxide concentration? i'm confused..because isn't this a salt?
May 17, 2009 by Lisa

Chemistry 12
In s 0.30 mol/L HNO3(aq) solution. a) what is the concentration of nitric acid molecules. b)what is the hydroxide ion concentration?
April 1, 2011 by JM

chem
If a neutral solution of water, with pH = 7.00, is heated to 50 deg C , the pH drops to 6.63. Does this mean that the concentration of [H+] is greater than the concentration [OH-]of ?
July 2, 2012 by greeny

Chem
What concentration of CH3NH3Br is necessary to prepare a pH = 10.00 buffer solution assuming the base concentration is 0.49 M (Kb for CH3NH2 = 4.4 x 10-4). In M
May 1, 2013 by Yanis

Science
What concentration of CH3NH3Br is necessary to prepare a pH = 10.00 buffer solution assuming the base concentration is 0.49 M (Kb for CH3NH2 = 4.4 x 10-4).
May 1, 2013 by Yanis

molarity
An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of the solution was ...
February 16, 2007 by christine

CHEMISTRY
1. How would you take 1L of an existing solution with a concentration of 1M and use it to make a new solution of 0.1 M? Be specific. 2. Would it be possible to easily create a 2 M solution from 100 mL of 1 M solution? Explain why or why not?
January 16, 2013 by Anonymous

Chemistry
1. How would you take 1L of an existing solution with a concentration of 1M and use it to make a new solution of 0.1 M? Be specific. 2. Would it be possible to easily create a 2 M solution from 100 mL of 1 M solution? Explain why or why not?
January 16, 2013 by Anonymous

Chemistry Lab
5.00 mL of .00500 M ferric nitrate is added to 5.00 mL of nitric acid and 10.0 mL of .00250 M thiocyanate solution. Calculate the intial Fe^3+ concentration before reaction. So how do I go about doing this?
February 22, 2010 by Jessica

Science
5. You have made the following two solutions: X) hydrogen ion concentration = 1 x 10-5M Y) pH = 4 State which statements below are true and which are false: a. Solution X contains 1 x 10-9M hydroxide ions. b. Solution X contains more H+ ions than Solution Y. c. Solution Y ...
September 10, 2012 by Alex

Chemistry
What is the product of mixing solid AgCl in a solution of HCl? Is it just AgCl + HCl, or is it AgCl2 + H2 (ignoring balancing right now).
October 1, 2008 by AJ

Chemistry
What is the volume of HCl stock (37%) you must add in order to make up a 10.0% diluted HCl solution, if the final volume to be achieved is 600mL?
May 27, 2013 by Kayden

Chemistry``
A substance (CD) decomposes into C and D. CD(g)  C(g) + D(g) At the temperature of the experiment, 15.0 percent of CD is decomposed when equilibrium is established. a) If the initial concentration of CD is 0.200 mol/L, what are the equilibrium concentrations of...
May 8, 2007 by Linda

Chemistry
Given HCL + SrO --- SrCL2 + H20 Calculate the mass of HCl in grams that would react with 4.85 kg SrO.
November 17, 2011 by nms

AP Chemistry
Calculate the concentration of Hg2+ ions in a saturated solution of HgS(s). (Ksp=1.710^52) Answer in units of mol/L What volume of solution contains one Hg2+ ion? Answer in units of L/ion
January 8, 2014 by Gabriella

Chemistry
24.5 mL of concentrated HCl is diluted to make 455 mL of .256 M solution. What is the molarity of the concentrated HCl?
October 25, 2011 by DJ

Chemistry
In aqueous solution, hydrochloric acid, HCl, and sodium carbonate, Na2CO3 react to produce gaseous carbon dioxide, CO2, water, H2O and sodium chloride, NaCl. A 10.0 g impure sample of Na2CO3 is dissolved completely in water; then treated with 3.00 mol L−1 HCl to evolve ...
June 15, 2014 by Olivia

Chemistry 122
A solution of nicotinic acid, HC6H4NO2, of concentration 0.012 M has a pH of 3.39 at 25 degrees Celsius. Calculate Ka for this acid.
November 22, 2010 by Marlynda

chemistry
calculate the hydroxide ion concentration in a solution of almond extract PH.3.8.state if almond is basic or acid
April 25, 2013 by demi

CHEM-PLEASE HELP
1- Calculate the equilibrium concentration for H+, HSO4- and SO4^2- , given a .150M H2SO4 solution. the Ka for HSO4- is 1.20*10^-2
May 20, 2013 by JOJO

Acid/Base
Why is the normal concentration for HCl compared with the Molar Concentration of [H3O+] different? Why is The normal concentration for Acetic acid compared with the Molar Concentration of [H3O+] different?
April 7, 2011 by Nicole

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 solution is prepared by dissolving 571.6 g of H 2SO4 in enough water to make 1000.0 mL of solution. The solution has a density of 1.3294 g/mL. (molar mass of H2SO4 = 98.08). What is the molar concentration of the solution?
March 24, 2013 by Bill

Chem I
Calculate the concentrations of hydronium and hydroxide ions in a solution prepared by dissolving 0.345g of solid NaOH in enough water to make 225mL of solution. Also calculate the pH and pOH of the solution.
November 15, 2010 by Natalea

chemistry
1.Does a pH of 8.6 describe a solution with a higher or lower hydronium ion concentration compared to a neutral solution? Is such as solution called acidic or basic? 2. Compared to a neutral solution, would you expect an acidic solution to have a higher or lower pH and a ...
May 2, 2013 by alex

Chemistry
John has 300 mL of 0.65 M NaCl solution. Mary has 500 mL of 0.35 M solution. What is the concentration of the solution if they pour them together
November 21, 2010 by Tracy

Chemistry Acid/bases
The concentration of H2SO4 in a solution is 3.20 10-6 M. Assume the acid dissociates completely in solution. What is the [H3O+] in the solution? What is the [OH-] in the solution? What is the pH of the solution? What is the pOH of the solution? OK SO I KNOW HOW TO DO THESE ...
February 10, 2009 by Spencer

Chemistry
Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = -118 kJ Calculate the heat when 103.6 mL of 0.500 M HCl is mixed with 300.0 mL of 0.550 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0C and that the final ...
October 22, 2012 by Bailey

Chemistry
a 15ml sample of sulfuric acid was titrated against a solution of .0100 mol per litre of sodium hydroxide. to bring about neutralization, 25.00 ml of sodium hydroxide solution was required. calculate the concentration of the sulfuric acid
January 24, 2013 by Omaaaaaaaar

chemistry
a saturated solution of milk of magnesia, Mg(OH)2, has a pH of 10.5. What is the hydronium concentration of the solution? is the solution acidic or basic?
July 14, 2009 by angela

Science
how many mililiters of a 0.4 molar HCl solution are needed to react completely with 13 grams of zinc according to the following equation? Equation. 2 HCl + 1 Zn -----> 1 ZnCl2 + 1 H2
July 13, 2010 by Nicole

Chemistry
how many mililiters of a 0.4 molar HCl solution are needed to react completely with 13 grams of zinc according to the following equation? Equation. 2 HCl + 1 Zn -----> 1 ZnCl2 + 1 H2
July 13, 2010 by Nicole

Chem
Zinc reacts with HCl to produce ZnCl2 and Hydrogen gas, H2. What volume, in ml of a 1.25 M solution would be required to completely react with 3.27 g of Zn? Zn(s) + 2 HCl (aq) -------> ZnCl2 + H2
December 13, 2011 by Meagan

science
commercially available concentrated H CL contains 38% H CL by mass (a) what is the molarity of this solution if the density in 1.19gm/l (b) what volume of concentrated HCL is required to make 1l of 0.1M HCL?
July 27, 2014 by anila

Chemistry
Given the following reaction: HCl(g) + SrO(s) SrCl2(s) + H2O Calculate the mass of HCl in grams that would react with 11.44 kg SrO.
November 25, 2010 by andrea

Chemistry
Calculate the pH of a 25 mL sample of distilled water after the addition of 1 mL, 2 mL, 3 mL, 4 mL, and 5 mL of NaOH and HCL. (0.1 M HCl and NaOH) In total, you need to show 10 calculations.
March 14, 2011 by Mariah

chemistry
Can anyone help me with these Chemistry questions? I am trying to study for an upcoming test and its just not sinking in as well and I thought. This is Thermochem for a heads up: Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium hydroxide in a ...
December 3, 2009 by Dina

chemistry
. What is the mass concentration (titer) is a solution of sulfuric acid with the molar concentration equivalent 0.5 mol/dm3?
November 15, 2012 by michelle

Inorganic chemistry
A 50.0 ml sample of 0.0240 M NH(aq) is titrated with aqueous hydrochloric acid. What is the pH after the addition of 15.0 mL of 0.0600M HCl(aq)? (Kb of NH3= 1.8 x 10^-5) Initial amount of NH3 (0.0240)(0.05) = .0012 mol Amount of HCl added (0.0600)(.015) = .009 mol Amount of ...
April 12, 2009 by Steve

Chem II
In the question Consider a 0.90 M Al(NO3)3 solution. This solution has a nitrate ion concentration of . . . . How do you figure the nitrate ion concentration?
June 6, 2008 by Ken

Chemistry
A 12% solution is diluted 1:60. What is the volume and concentration of the final solution? I started off with this 12(1/60) = 0.2% However, how do I get the final volume and concentration? Thanks
May 18, 2013 by freelance

chemistry
AgNO3 was dissolved in water to make 10mL of solution. Then 3.0mL of that solution was used to make a new solution with a total volume of 1.000L. What was the concentration of the silver ion in the final solution?
October 5, 2009 by Anonymous

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
A solution is prepared by dissolving 23.7 g of CaCl2 in 375 g of water. The density of the resulting solution is 1.05 g/mL. The concentration of Cl- in this solution is __________ M. can someone help me? how do i get to M?
September 26, 2010 by BenY

Chem
Water is added to 25 ml of a .911 M KNO3 solution until the volume of solution is exactly 500ml. What is the concentration of the final solution.
October 10, 2010 by Jen

chemistry
A solution is prepared by dissolving 23.7g of CaCl2 in 375.0g of water. The density of this solution is 1.05g/mL. determine the concentration (molarity) of Cl in solution.
March 14, 2011 by jim

college chem
Calculate the pH of a 25 mL sample of distilled water after the addition of 1 mL, 2 mL, 3 mL, 4 mL, and 5 mL of NaOH and HCL. (0.1 M HCl and NaOH) In total, you need to show 10 calculations.
March 14, 2011 by Mariah

chemistry
Given the following reaction: HCl(g) + SrO(s) → SrCl2(s) + H2O Calculate the mass of HCl in grams that would react with 7.70 kg SrO
November 14, 2011 by riali

Chemistry
Calculate the end point pH, when 25 mL of 0.01 mol/L HCl solution reacts exactly with 25 mL of 0.1 mol/L NH4OH solution. NH3 Kb = 1.8 x 10^-5 This will be the pH of NH4Cl solution. NH4+ + HOH ==> NH3 + H3O^+ Ka = Kw/Kb = (NH3)(H3O^+)/(NH4^+). Solve for H3O^+, then pH = - ...
May 31, 2007 by Raj

chemistry
If the concentration of Pb^2+ is known to be roughly 2.1 x 10 to the power of -9 mol/L within a saturated solution of Pb(PO4)2, calculate the Ksp of Pb3(PO4)2?
April 9, 2008 by Angelo

Chemistry
The fluoride ion concentration in a saturated solution of magnesium fluoride, MgF2, is 2.3 10-3 M. Calculate the value for the equilibrium constant.
May 5, 2014 by Harry

Chem
Use a chemical equation to help explain why the pH of an aqueous solution changes after HCl solution has been added This is what I got HCL + H2O = H30+ plus CL- Hope that makes since (those are a positive and negative signs at the right side of the equation) Tell if I'm right...
April 5, 2013 by meghan

Chemistry
if 50 g of HCL is dissolved in 100 g of water at 40 C, how much HCL must be added to the solution in order to saturate it? the answer is about 12g but can you explain how to get this answer? thanks.
March 14, 2011 by Jazmin F.

chemistry
(3 pts) The stockroom prepared a solution by dissolving 0.2300 g of Erythrosin B (MW = 879.87 g/mol) in DI water in a 250.00 mL volumetric flask. A student pipetted 5 mL of the stockroom solution into a 100.00 mL volumetric flask and diluted it to the mark with DI water. The ...
February 4, 2008 by Anonymous

Chemistry
What is the pH of the solution created by combining 12.40 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)? I know how to solve for HCl but not with HC2H3O2.
May 1, 2010 by Manali

Chemistry
When the concentration of a weak acid in solution is equal to the concentration of its conjugate base in solution, then: Would pH=pKa or would it equal pH=pKa + 1 like Henderson-Hasselbalch equation?
April 7, 2013 by Marcus

Chemistry
This question was posted: At 22 C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.56. What is the Ksp of the compound at 22 C? I have found my [OH-] concentration (3.63x10^-4) but I am looking ...
July 8, 2012 by jen

chemistry
The concentration is 1.67M. I have 5.28 grams of ethanol. How many liters of water will I need to make this solution with the above concentration?
March 28, 2010 by linda

Chemistry
If you dissolve 30.0 g of HF in 100mL of water, what is the concentration of H+ ions in this solution? (Can you figure out what the H+ concentration would be using the Ka value?) Ka=6.3*10^-4
May 2, 2010 by Lucy

chemistry
What is the final concentration (in M) of 17.6 mL sodium chloride solution with an initial concentration of 1.86 M which is diluted with 18.9 mL of solvent? Assume the volumes are additive.
April 12, 2012 by Anonymous

CHEMISTRY REPOST
Calculate the concentration, in percent by mass, of a refrigerant brine solution which is 4.03 M in NaCl with a density of 1.116 g mL-1. detailed answer, please, i dont understand how to do this at all!!!
November 10, 2007 by keely

Chemistry
calculate the minimum concentration of ag+ ion that must be added to (or built up in) a 0.140 m Na2CrO4 solution in order to initiate a precipitation of silver chromate. The ksp of ag2cro4 is 1.2 10^-12.
November 20, 2013 by Alicia

Chemistry: Check my answers please!
How would each of the following affect the Cr(VI) concentration determined in this experiment? Justify the answers with an explanation. In the experiment, absorption spectroscopy was used to obtain the concentration of Cr(VI) ions. 1) A student adds more standard solution than...
March 2, 2014 by Sandy

chemistry
How much of a 100mM solution do I need to add to a 2.5mM solution to make a solution with a final concentration of 10nM? Is there a formula for this? Please HELP!
October 21, 2010 by lisa

Chemistry
Solution A is 2.40M. 20mLs of solution A is transferred to a 250mL volumetric flask and diliuted to volume with water. What is the concentration of the diluted solution?
April 25, 2013 by Jaime

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

AP CHEM
Please help me with thses AP CHEM homework problems and show the steps to how to find the solutions: Solid Liquid Titrations: Determine the concentration of the indicated liquid unknown given the mass of a solid standard and the buret data for the titration. #35) What is the ...
July 31, 2008 by shylo

ap chemistry
What is the pH at the point during a titration when 34 mL of 0.200 M HCl has been added to 29 mL of 0.0500 M NH3 solution? HCl is a strong acid, Kb=1.810−5 for NH3. Answer in units of pH
February 4, 2014 by gabriella

chemistry
Suppose 95.0 mL of HCl gas at 25 C and 707 torr is bubbled into 298 mL of pure water. What will be the pH of the resulting solution, assuming all the HCl dissolves in the water?
April 24, 2014 by Linda

Chemistry
You can purchase hydrochloric acid in a concentrated form that is 37.0 hcl by mass and has a density of 1.20g/mL. Describe how exactly you would prepare 2.85 L of 0.500 M HCL from the concentrated solution.
May 7, 2014 by Rebecca

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

physics practical investigation
design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.hint...you may investigate either the amount of heat produced or the amount of gas produced(make choice from the ...
March 25, 2013 by Jossie

physics practical investigation
Plan,design and conduct an investion to find out whether the amount of heat produced will depend on increase on concentration of Hcl when Hcl reacts with an excess zn.you may investigate either the amount of heat produced or the amount of gas produced(make choice from the ...
March 25, 2013 by Jossie

Chem hwk
How many grams of solute are required to make a 504 mL solution of copper (I) nitrate with a concentration of 1.3317 M? I go 238.6 g but my friend said I'm way off When 84.2730 grams of solute are used to make a 504 mL solution of copper (I) nitrate, what is the concentration...
April 29, 2013 by Tif

chemistry
The values of Ksp for AgBr and AgCl, are 7.7x10^-13 and 1.6 x 10^-10. A solution containing a mixture of 2.0x10^-2 M Br and 2.0 x 10^-2M Cl is a candidate for separating using selective precipitation. Solid AgNO3 is added, with a miniature spatula, and without changing the ...
July 24, 2010 by Jin

Chemistry
The following is given: 20 ml of HCl (2.0 M) added with 5 ml of Na2S2O3 (0.3 M) with 5 ml of H2O S2O3^-2(aq) + 2H^+1 (aq) --> S (s) + SO2 (g) + H2O (l) Calculate the following: a) Reaction rate when 30 mg of sulphur is formed (in 30 ml of solution) after 55 seconds. b) Rate...
October 20, 2010 by Stephanie

chemistry
Magnesium reacts with HCl(aq) to form MgCl2 and H2(g) ____ Mg(s) + ____ HCl(aq) -----> ____ MgCl2(aq) + ____ H2(g) The following data was collected for the above reaction: Mg (g) 5% (m/v) HCl (ml) H2 gas produced (ml) 0.50 10 167 0.50 20 333 0.50 30 500 0.50 40 500 0.50 50 ...
January 29, 2010 by richard

Chemistry HELP!!!
Only one question, it would be greatly appreciated if you would help me Thanx In an experiment, Na2CO3(aq) was added to 25.0 mL of CaCl2(aq) solution until no more precipitate was formed. The mass of precipitate produced was 2.50 g. Some statements about the experiment follows...
September 28, 2006 by Brittany Rusk

chemistry
how would you calculate the number of milliliters of 1 M HCl required for .212 mol of HCl?? and how could i find out what remains in the beaker when distilled water is evaporated in a beaker?
May 6, 2008 by Kayla

Chemistry [sumone help me please :(]
0.250g of phthalic acid is dissolved in 40.00cm^3 of 0.100 mol dm^-3 NaOH. It requires 11.80 cubic centimeters of 0.100 mol\dm^-3 HCL fo neutralisation( to phenolphthalein) The mole ratio in which phthalic acid reacts with sodium hydroxide ihn 1:2 (a) Calculate the moles of ...
September 21, 2011 by Petty

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