Thursday
April 17, 2014

Search: How much concentrated hydrochloric acid solution (36.0 HCl by mass, = 1.18), in milliliters, is required to produce 13.0 of 0.234 ?

Number of results: 123,080

chemistry need help plzzz tomorrow is a TEST!!!
phosphoric acid is the active ingredient in many commercial rust-removing solution.calculate the volume of concentrated phosphoric acid (14.6 mol/L)that must be diluted to prepare 500mL of a 1.25 mol/L solution. how can i calulate the volume cocentration for this question.... ...
Thursday, December 9, 2010 at 8:38pm by TARA

chemistry
Okay so I did this problem, but it seems wrong? I put the answers I got... Determine the pH of the following tiration at each of the points indicated. A 71.7 mL solution of 0.182 M NaOH is titrated with 0.2086 M HCL. 1.) initial pH= is it 7.86 or 8.51? 2.) after addition of 10...
Sunday, October 9, 2011 at 12:57pm by help meeee pleaaseee

scie
A bottle of concentrated sulphuric acid (Density =1.80 gcm/cm cube) is labelled as 86% by weight. What is the molarity of the solution?
Sunday, June 16, 2013 at 4:05am by aarti

Chemistry II
Calculate how many milliliters of 0.100 M HCl must be added to 25.0 ml of a 0.200 M solution of NH3 to prepare a buffer that has a pH of 9.50? Kb = 1.76 x 10^-5
Wednesday, June 29, 2011 at 1:13pm by Terence

Ap Chem
how many milliliters of a 0.9 molar HCl solution are needed to react completely with 12 grams of zinc according to the following equation 2HCl+ Zn yields ZnCl2+ H2
Monday, September 10, 2012 at 1:21pm by Chasm

Science
How do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml)? Thank you very much for your help.
Tuesday, December 2, 2008 at 4:39am by Tricia

CHEMISTRY
1) An NaOH solution of unknown concentration is titrated with HCl. 51.9 mL of 0.400 mol/L HCl will neutralize 75.0 mL of the NaOH. What is the concentration of the NaOH solution ? Record your answer in decimal notation. I think the answer is 0.277 mol/L. is that right? 2)An ...
Tuesday, January 31, 2012 at 9:17pm by TIANDRA

math
a chemistry experiment calls for 30% sulfuric acid solution. if the supply room has only 50% and 20% sulfuric acid solution on hand,how much of each should be mixed to obtain 12 litres of 30% solution?
Thursday, October 20, 2011 at 6:09pm by patel

math
a chemistry experiment calls for 30% sulfuric acid solution. if the supply room has only 50% and 20% sulfuric acid solution on hand,how much of each should be mixed to obtain 12 litres of 30% solution?
Thursday, October 20, 2011 at 7:04pm by patel

chemistry
What I would first is to find the amount of mols of H3PO4. Since you know that 1 M means there is 1 mol of solution in every 1 liter, you can figure out the moles of the solution. The solution is 6M, so that means that to find the moles of solute in the solution you multiply ....
Thursday, February 28, 2008 at 6:09pm by Anonymous

science
calculate the amount of hydrogen gas involved if ferrous + 2hcl = ferrous choloride + h2 if 55 gramme iron is reacting with 36.5 hydrochloric acid .
Friday, May 24, 2013 at 11:05am by sajid

Chemistry
1. As I understand it--As an acid is added to neutral water the (OH-) will...decrease?? Is this right? 2. If you made up a solution of NaOH by adding 0.010 mole of solid NaOH to 1.0 L of distilled water, what would be the concentration of the OH-?...I think this would be a pOH...
Tuesday, May 15, 2012 at 12:31pm by April

chemistry
what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?
Sunday, April 25, 2010 at 10:56am by Alexis

chemistry
what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?
Sunday, April 25, 2010 at 10:56am by Alexis

chemistry
what mass of salt can be produced from the reaction of 3.45 grams of sodium hydroxide and an excess of hydrochloric acid?
Tuesday, April 27, 2010 at 4:50pm by Alexis

science
why did the balance record a decrease in mass during the reaction betwwn iron sulphide and hydrochloric acid?
Sunday, August 22, 2010 at 4:18am by candice

Chemistry
how many milliliters of a 0.78 M HCl solution are needed to react completely with 6.4 g of zinc to form zinc(II) chloride? Answer in units of mL.
Tuesday, October 5, 2010 at 9:45pm by Nathan Espinosa

AP Chemistry
How many milliliters of a 0.62 M HCl solution are needed to react completely with 4.7 g of zinc to form zinc(II) chloride? Answer in units of mL
Tuesday, September 10, 2013 at 9:34pm by Gabriella

chemistry
A flask containing 5.00mL of 3 M HCl solution requires 14.45mL of 1.00 M NaOH for titration. How many moles of HCl are present in the solution? The density of 3 M HCl is 1.05g/mL
Saturday, June 12, 2010 at 11:12pm by John

chemistry
A flask containing 5.00mL of 3 M HCl solution requires 14.45mL of 1.00 M NaOH for titration. How many moles of HCl are present in the solution? The density of 3 M HCl is 1.05g/mL
Sunday, June 13, 2010 at 12:03am by John

Chemistry
Calculate the volume of 2.503 N HNO3 added to 100 mL of HCl in order to prepare 1.1251 N acid solution from the following data: 58.96 mL NaOH will neutralize 2.521g of potassium tetroxalate and 45.57 mL of HCl will neutralize 53.0 mL of the NaOH solution.
Tuesday, January 21, 2014 at 3:11am by Summer

Chem
SrSO4, CuCN, and Ni(OH)2 are more soluble in acidic solution than in pure water. If you don't understand what basic anions are, then look at it this way. Which anions will hydrolyze with H2O to form a WEAK acid when added to H^+; i.e., an acid that has a Ka (not a strong acid...
Thursday, May 2, 2013 at 7:28pm by DrBob222

CHEMISTRY
Zinc metal reacts with hydrochloric acid to produce zinc (II) chloride and hydrogen gas. what volume (in mL) of 2.0M HCl is required to dissolve a 10.0g piece of zinc?
Sunday, March 13, 2011 at 8:31pm by Jon

CHEMISTRY
Zinc metal reacts with hydrochloric acid to produce zinc (II) chloride and hydrogen gas. what volume (in mL) of 2.0M HCl is required to dissolve a 10.0g piece of zinc?
Sunday, March 13, 2011 at 10:33pm by Jon

Chem
I must admit I don't know what an equimolar solution of HCl is; however, in the context of the problem I assume you are trying to say that the HCl and the KOH are the same molarity. I understand that two solutions can be equimolar but I don't know how one solution can be ...
Thursday, September 29, 2011 at 9:47pm by DrBob222

chemistry please help!!!!!!!!!!!!!!!!!!!!!!
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?
Monday, May 31, 2010 at 1:19pm by lulu

chemistry please help!
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?
Tuesday, June 1, 2010 at 5:00pm by Anonymous

chemistry help!!
Call base = B (acetate ion). Call acid = A (acetic acid). A + B = 0.1 M pH = pKa + log (B/A). Two equations and two unknowns. Solve for A and B. You know pH and pKa, so solve for B/A. Then A + B = 0.1 That is the first part of the problem. For the second part, recognize that ...
Monday, July 13, 2009 at 1:10pm by DrBob222

Science (Chemistry)
I'm not exactly sure what the problem does but I think the idea is to show that the only way we can obtain 55.4% CuO is this way. The mass of the reactants is 9.56 g + 4.08 g = 14.36 g. The Law of Conservation of Mass says that the products must also have a mass of 14.36 g. So...
Wednesday, October 7, 2009 at 10:35pm by DrBob222

chemistry
4. Phosphorous trichloride, PCl3, reacts with water to form phosphorous acid, H3PO4, and hydrocholoric acid: PCl3+ 3H2O> H3PO3+3HCL a. what is the limiting reactant when 10.0g of PCl3 is mixed with 12.4 g of H2O? b.what mass of HCl is formed? C. how much excess reactant ...
Friday, February 29, 2008 at 7:22am by anon

chemistry
I don't get those answers. I have molar mass ClO2 = 67.45 g/mole molar mass H2O = 18.015 g/mol. mols ClO2 = 142 x (1 mol/67.45) = 2.10 mols ClO2. mols H2O = 33.0 x (1 mol/18.015) = 1.83 mols H2O. mols HCl formed if all of the ClO2 reacted is 2.10 x (1 mol HCl/6 mols ClO2) = 2....
Monday, February 2, 2009 at 9:31pm by DrBob222

chemistry
a 205 mg sample of diprotic acid is dissolved in enough water to make 250 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hyrdoxide (Ksp=1.3*10^-6) is prepared by adding excess calcium hydroxide to water and then removing the undissovled solid ...
Sunday, March 4, 2012 at 8:09pm by cat

Chemistry
Latice energy is in coralative respondance to the change in heat of the system once the action has undergone previous catalysmic aids. Think of it like this, say you have a tennis ball, now, put that tennis ball in a .5 molarity solution of hydrochloric acid. What happens? ...
Monday, September 20, 2010 at 8:37pm by Dr. Billy Walton (MIT)

college chemistry
I don't have any idea what procedure you used. If you wish to type in the ENTIRE procedure perhaps someone here can help but you can do this yourelf the following way. Write an equation for each step. Substitute (mentally) high or low for the part of the equation that is ...
Monday, October 15, 2012 at 4:37pm by DrBob222

Chemistry
A volume of 150mL of 0.35M HCl is to be prepared from 80% HCl stock solution. (Density of HCl = 1.191g/mL). Calculate the molarity of 80% HCl stock solution.
Friday, August 9, 2013 at 1:37pm by K

Chemistry
NH3 + HCl ==> NH4Cl 5.5 kg = 5500 g Convert to moles. moles = grams/molar mass = ? 1 mole NH3 requires 1 mol HCl; therefore, moles NH3 = moles HCl. M HCl = moles HCl/L HCl. You know M HCl and moles HCl, solve for L HCl
Saturday, February 11, 2012 at 9:14pm by DrBob222

Chemistry
For part 1, then why is the reaction rate of a given metal with HCl is faster than with acetic acid? For part 2. how about 1.0M HCl and 0.5MNaOH? Which one needs more volume to produce a neutral solution?
Wednesday, April 15, 2009 at 8:44pm by Anonymous

chemistry
How many milliliters of a 15.0%, by mass solution of KOH(aq) ( d= 1.14g/mL ) are required to produce 27.0 L of a solution with pH = 11.70? I'm really not sure how to do this, it's from Acids & Bases chapter. Any help is appreciated, thanks. (:
Sunday, February 22, 2009 at 11:23pm by Agatha

Chemistry
If a procedure calls for 2mL of a concentrated nitric acid, what are the mass and moles of the HNO3 actually used in the reaction?
Thursday, September 6, 2012 at 9:18am by Dem

Chem
Hydrochloric acid can be prepared using the reaction described by the chemical equation: 2 NaCl(s) + H2SO4(l) ----> 2 HCl(g) + Na2 SO4(s). How many grams of HCl can be prepared from 393 g of H2SO4 and 4.00 moles of NaCl? A) 4.00 g B) 2.49 g C) 146 g D) 284 g E) None of the ...
Wednesday, April 11, 2007 at 4:00pm by Jessica

Chemistry
In studying the chemistry and qualitative analysis of anions, why wouldn't HCl be a good acid to use to determine the solubility of a silver precipitate in acid solution?
Thursday, April 29, 2010 at 12:52am by Matt

chemistry
A 25.0 mL solution of HCl has been spilt. It took 21.8 mL of saturated 2.5 M NaOH to neutralise the acid. What was the molar concentration of the acid?
Wednesday, August 7, 2013 at 11:42pm by sarah

chemistry
A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium chloride. The sample is dissolved in 100.0 ml of deionized water and titrated with 1.5 M hydrochloric acid. The initial pH of the solution is pH= 12.9. ...
Tuesday, May 22, 2012 at 6:11am by bill

chemistry
A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium chloride. The sample is dissolved in 100.0 ml of deionized water and titrated with 1.5 M hydrochloric acid. The initial pH of the solution is pH= 12.9. ...
Tuesday, May 22, 2012 at 6:41pm by bill

AP Chemistry
1. The heat of solution of salta may either be endothermic or exothermic. What factors determine this? 2. As a solution freezes, why does the freezing temperature continue to decrease? 3. When the concentration of very dilute aqueous solutions are calculated, why are the ...
Sunday, February 4, 2007 at 3:34am by anonymous

Chemistry
mass of 1000 mL is 1.19 g/cc x 1000 cc = ??g,]. How much of that is HCl? ??g x 0.35 = xx g. How many moles is that? xx g HCl/molar mass HCl. moles/L is definition of molarity.
Tuesday, January 25, 2011 at 2:06am by DrBob222

chemistry!!! /10th grade
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?
Monday, May 31, 2010 at 11:07am by meme

Chemistry
Ca3(PO4)2 + 3 H2SO4 -> 3 CaSO4 + 2 H3PO4 What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0 kg calcium phosphate with 1.0 kg concentrated sulfuric acid (98% H2SO4 by mass)?
Monday, August 16, 2010 at 10:26pm by Anonymous

ChEMISTRY (Help please)
Calculate the mass percent of acetic acid in acetic acid solution. Average molarity= .8806753M Average density= 3.27463 Molar mass of acetic acid= 60.042g
Tuesday, April 13, 2010 at 8:02pm by Michelle

Chemistry
In each of the following, determine how much solute (in g or mL) must be added to the correct quantity of water to make the given amount of solution at the correct concentration. a)KI to make 50.0mL of a 0.50 M solutioon b)12.0 M HCL to make 500 mL of a 1.0 M HCl c)Sucrose (...
Sunday, May 2, 2010 at 4:20pm by Kim

Inorganic chemistry
You are ok so far except that you wrote (0.04)-(0.0055) = -.0015 when you should have written (0.004)NaAc - (0.0055)HCl = but I think that was just a typo. I have typed in the NaAc and HCl part to clarify things. So what has happened is that you have no NaAc left (technically ...
Tuesday, April 14, 2009 at 12:18pm by DrBob222

AP Chemistry
To prepare 9 litres of 5 molar we need 45 moles of HCl which is 36x45 g = 1620 g of HCl if the stock solution is 36w/w% then we need 1620 g/0.36 of the stock = 4500 g of the stock. to find the volume needed volume = mass/density volume = 4500 g/1.50 g/ml =3000 ml
Thursday, September 15, 2011 at 2:36am by Dr Russ

chemistry
a piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. the reaction formed iron (II) chloride and hydrogen gas. how many moles of iron (II) chloride were formed?
Wednesday, March 26, 2014 at 1:50pm by dee

Chemistry
0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.
Wednesday, December 1, 2010 at 2:42pm by Susie

Chemistry
Are these correct? 1. KBr: Potassium Bromide 2. Cu2O: Copper (I) Oxide 3. HCl: Hydrochloric Acid 4. N2O4: Dinitrogen Tetroxide 5. H3P: Hydrophosphoric Acid 6. FeS: Iron (II) Sulfide 7. Ag2SO4: Silver Sulfate 8. HNO2: Nitrous Acid 9. Pb(CO3)2: Lead (IV) Carbonate 10. Ba(NO3)2: ...
Wednesday, January 12, 2011 at 1:30pm by Anonymous

Chemistry
CH2 is not a stable compound. C2H4 is a stable compound, ethylene. It is a gaseous Organic compound that reacts with Cl2 to yield. HCl (Hydrochloric acid) and Carbon.
Thursday, April 12, 2007 at 11:05am by Anonymous

Math
1/3 is your new whole, NOT 1. So take 1/4 of 1/3 + 1/6 of 1/3 + 1/6 of 1/3. Pretend there are 180 plants. That would make 60 of them on sale. 1/4 of that is 15, 1/6 is 10 and 1/6 is 10. so that makes 35 out of the 180 is 7/36. 1/12 +1/18+1/18 or 3/36 + 2/36 + 2/36= 7/36.
Wednesday, May 8, 2013 at 8:23pm by Sheryl

Chemistry
convert 600mg to moles. 2HCl + Mg(OH)2 = MgCl2 + 2H2O so, each mole of Mg(OH)2 needs 2 moles of HCl. So, now you know how many moles of HCl you need. For .5M HCl solution, you will need 2L (2000ml) of acid for each mole.
Monday, May 20, 2013 at 9:51am by Steve

math
60 ml of solution A is mixed with 120 ml of solution B to produce solution C which contains 8% of pure acid. If 80ml of solution A is mixed with 40ml of solution B, a solution D containing 10% of pure acid can be produced. find the percentage of pure acid in solution A?
Tuesday, July 5, 2011 at 2:18am by anjan

math
60 ml of solution A is mixed with 120 ml of solution B to produce solution C which contains 8% of pure acid. If 80ml of solution A is mixed with 40ml of solution B, a solution D containing 10% of pure acid can be produced. find the percentage of pure acid in solution A?
Tuesday, July 5, 2011 at 2:18am by anjan

algebra 1
y + 18 = 16 x y = 16 x - 18 ______________ 0.5 x + 0.25 y = 36 x / 2 + y / 4 = 36 Multiply both sides with 4 4 x / 2 + 4 y / 4 = 36 4 2 x + y = 144 2 x + 16 x - 18 = 144 18 x = 144 + 18 18 x = 162 Divide both sides with 18 x = 162 / 18 x = 9 y = 16 x -18 y = 16 9 - 18 y = 144...
Monday, November 21, 2011 at 9:41pm by Anonymous

math
How would I come about to the solution and what the answers to the question so I can help my son with his school work? 1.Check all the answers that are square roots of 36 a. 36^1/2 b.-(36)^1/2 c.9 d.6 e.-6 f. √36 2.)Which answers are equal to the expression 2 x √9 ...
Tuesday, June 7, 2011 at 6:56pm by James

chemistry
Suppose that 0.483 g of an unknown monoprotic weak acid, HA, is dissolved in water. Titration of the solution with 0.250 M NaOH(aq) required 42.0 mL to reach the stoichiometric point. After the addition of 21.0 mL, the pH of the solution was found to be 3.75. (a) What is the ...
Friday, June 14, 2013 at 9:19pm by Sara

chemistry
a solution of lead(2)nitrate is added to hydrochloric acid. A precipitate is formed in a double displacement reaction Question:how to balance this equation problem
Tuesday, November 1, 2011 at 10:12am by james

chemistry
Identify the limiting reagent. 2.43g of magnesium is added to a solution containing 0.100 mol hydrochloric acid t ok produce hydrogen gas.
Sunday, April 21, 2013 at 10:14pm by Amy

Physical sciences
Potassium dichromate,concentrated nitric acid 12m,concentrated sodium hydroxide 12.5m and water.set up an experiment to investigate the effects of changing concentration on an equilibrium mixture
Monday, May 23, 2011 at 3:16pm by Tshephiso

chemistry
220 ml of an HCl solution that is 31.4% by mass is required to neutralize .50 gal of the chlorine solution. what is the molarity of the OH- of the clorine solution? chlorine solution is NaOCl in NaOH
Tuesday, April 19, 2011 at 1:30pm by Bob

Chemistry
Using Volumetric Glassware to Measure, Dilute,and Titrate Acid Solution 1)For each of the following procedural errors, indicate whether the calculated molarity of the HCl solution would be higher or lower than the actual molarity. Briefly explain. a)The NaOH titrant is ...
Friday, April 1, 2011 at 6:46pm by Anonymous

Chemistry
PLEASE, PLEASE don't misspell insoluble. There is no such word as insoluable or soluable. The words you seek are soluble and insoluble. The chemical you want is an acid. Add an acid (acetic acid or hydrochloric acid) and the CaCO3 will fizz but CaCl2 will not.
Wednesday, September 19, 2012 at 3:18pm by DrBob222

chemistry
in the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hydrogen gas. If 4.59 mol of magnesium and 4.59 mol of hydrochloric acid are reacted, how many moles of magnesium chloride are produced ?
Monday, August 26, 2013 at 8:34pm by tyler

chemistry
Explain jhow you would make 400 milliliters of an 18% solution from dry glucose and distilled water.
Tuesday, December 7, 2010 at 9:28pm by juan

Chemistry
First determine the concn of the 36% HCl then use the dilution formula to make whatever concn you need from that. 1.183 g/cc x 1000 cc x 0.36 x (1 mol/36.5g) = ?M HCl for the 36% stuff. You should get approximately 12M I would convert 0.215 g to mols; 0.215/36.5 = about 0.0059...
Saturday, January 19, 2013 at 12:21pm by DrBob222

chemistry
A sulfuric acid solution at 25 °C has a density of 1.27 g/mL. A 20.0-mL sample of this acid is measured out at 25 °C, introduced into a 50-mL flask, and allowed to cool to 21 °C. The mass of the flask plus solution is then measured at 21 °C. Use the stated data, as necessary, ...
Monday, May 25, 2009 at 2:23pm by Zandria

Chemistry
A 205 mg sample of a diprotic acid is dissolved in enough water to make 250.0 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hydroxide (Ksp= 1.3 x 10-6) is prepared by adding excess calcium hydroxide to water and then removing the undissolved ...
Monday, February 25, 2013 at 6:27pm by Summer

Chemistry 101
Iron reacts with hydrochloric acid to produce iron (2) chloride and hydrogen gas.Fe (s)+ 2 HCL (aq) -FeCl2 (aq) + H2 (g).The hydrogen gas from the reaction 2.2g of iron with excess acid is collected in a 10L flask at 25 degrees celcius. What is the pressure of the hydrogen gas...
Thursday, April 30, 2009 at 10:29pm by Eunice

Chemistry
I've been given the Volume of Concentrated NaOh solution (mL) and also the Concentration of Concentrated NaOh solution (M). I also have the volume of stock solution after dilution (mL). The question is asking the approximate concentration of stock solution (M) any help?
Friday, October 31, 2008 at 10:12am by Vanessa

chemistry
Please help ~~ Because i don't ever know the reaction in organic compound .. Do anyone has the data bank of the organic chemicals ? I cannot find out what are the compound in the reaction with it ~~ 1. What do butylamine give when it is dissolved in water ? A nearly pH10 ...
Thursday, December 4, 2008 at 10:28am by initial D

Chemistry
1. Calculate the pH of a buffer solution that contains 0.32 M benzoic acid (C6H5CO2H) and 0.17 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal. 2. A solution is prepared by mixing 470 mL of 0.18 M Tris·Base and...
Monday, April 8, 2013 at 1:05am by Erin

Chemistry
1. Calculate the pH of a buffer solution that contains 0.32 M benzoic acid (C6H5CO2H) and 0.17 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] Round your answer to two places past the decimal. 2. A solution is prepared by mixing 470 mL of 0.18 M Tris·Base and...
Monday, April 8, 2013 at 1:31am by Erin

Chemistry
a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is titrated with a 0.125M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (ch3)3N=4.19
Monday, November 8, 2010 at 2:34pm by Amanda

Chemistry
Consider a solution containing 37.0 (+/- 5)% (wt/wt) HCL in water. The density of the solution is 1.18 (+/- 0.01) g/mL. To deliver 0.0500 (+/- 3%)mol of HCL requires 4.18 (+/- x) mL of solution. Find x. My teacher said x= .4. How do you solve for uncertainty? http://www.rit....
Saturday, September 16, 2006 at 8:45pm by Andrew

Chem
Balance the chemical equation for the important industrial process: C2H4 + O2 + HCl → C2H4Cl2 + H2O. Given 610.0 kg of hydrochloric acid, calculate how many kg of C2H4Cl2 can be produced.
Thursday, October 18, 2012 at 1:42am by DEN

Chemistry help
Hello. Can I get someone to help me set up these problems? 1.) How many moles of N are there in 2.6 moles of NHO3? 2.) How many moles of C2H6 (g) are consumed when 4.4 mol CO2 (g) are produced? 3) How many milliliters of 0.80 M CuSO4 must be diluted to make 866 milliliters of ...
Sunday, February 25, 2007 at 5:35pm by Nazr

Chemistry
acid + base >> a salt plus water In this case, is sodium benzoate a salt? Add HCl? If the pH of the solution is 2 or less, then the sodium benzoate will react to form Sodum chloride (aq) and solid benzoic acid. So you have to add enough HCl to get the pH down to the ...
Wednesday, February 4, 2009 at 2:43am by bobpursley

Chemistry
You number is correct; if you obtained it correctly from your work I can't tell. mass percent = (mass solute/100 g solution)*100 [(18.6)/(18.6 + 81.4)]*100 = (18.6/100)*100 = 18.6%
Friday, February 8, 2008 at 1:48pm by drbob222

Pre-Algebra
m/9 = m/18 + 2 Subtract m/18 from both sides. m/9 - m/18-----> 2m/18 - m/18 m/18 = 2 m/18*18 = 2*18 = 36
Tuesday, October 8, 2013 at 12:03pm by Anonymous

Chemistry
How many milliliters of glacial acetic acid (17.3 M) would you need to titrate an aqueous solution of 100 grams sodium acetate (MW = 82.0 g mol-1) to get a final pH of 5.00 and a final volume of 1.00 liter? The pK’ for acetic acid is 4.76. Show your work.
Monday, September 10, 2012 at 1:10am by Trey

Math
A chemist working on a flu vaccine needs to mix a 10% sodium-iodine solution with a 60% sodium-iodine solution to obtain a 50-milliliter mixture. Write the amount of sodium iodine in the mixture, S, in milliliters, as a function of the number of milliliters of the 10% solution...
Saturday, September 6, 2008 at 4:19pm by Anonymous

chemistry
Okay, I am doing a lab with titration as well. I have read everything here, and have a question for you as well... if that is okay? The hard part for me is that I don't have a prof. to talk to face to face since my whole class is on-line. Anyway... Titrating an acid/base - 1 M...
Wednesday, February 27, 2008 at 4:40pm by Julie

chemistry
Okay, I am doing a lab with titration as well. I have read everything here, and have a question for you as well... if that is okay? The hard part for me is that I don't have a prof. to talk to face to face since my whole class is on-line. Anyway... Titrating an acid/base - 1 M...
Wednesday, February 27, 2008 at 4:40pm by Julie

Analytical
You need two ICE charts for this; i.e., one for the strong acid HCl and one for H2O. HCl is a strong acid; therefore, it dissociates completely (100%). .......HCl --> H^+ + Cl^- I.....7.2E-8....0......0 C...-7.2E-8...7.2E-8...7.2E-8 E......0......7.2E-8..7.2E-8 ........H2O...
Thursday, September 27, 2012 at 8:46pm by DrBob222

chemistry
Are you asking how to dilute the HCl? If you are intending to dilute using a volumetric flask then it is a good idea to add acid to water than water to acid, although it is not as crucial with conc HCl (Cf H2SO4). The dilution will still get warm. My sequence would be to place...
Monday, October 11, 2010 at 5:57am by Dr Russ

Chemistry
Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy. An aqueous solution is 0.688m citric acid. The density is 1.049 g/ml. What is the molar concentration?
Thursday, February 7, 2008 at 8:09pm by Lauren

Chemistry
Citric acid H3C6H5O7, occurs in plants. Lemons contain 5% to 8% citric acid by mass. The acid is added to beverages and candy. An aqueous solution is 0.688m citric acid. The density is 1.049 g/ml. What is the molar concentration?
Thursday, February 7, 2008 at 8:37pm by Lauren

Chemistry
This is probably easier then my making it but... Calculate the ph of a forming acid solution that contains 1.35% forming acid by mass. Assume a density of 1.01g/ml for the solution.
Friday, February 24, 2012 at 6:36pm by L.Bianchessi

chemistry
sodium carbonate and hydrochloric acid react to give sodium chloride, carbon dioxide and water. How many grams of sodium carbonate and hydrochloric acid would be required to produce 286g of carbon dioxide? step by step answers please:)
Saturday, December 29, 2012 at 1:18pm by sarah

chemistry
In a laboratory experiment, a 18.0 ml sample of NaCl solution is poured into an evaporating dish with a mass of 24.00 g. The combined mass of the evaporating dish and NaCl solution is 37.15g. After heating, the evaporating dish and dry NaCl have a combined mass of 26.50 g. If ...
Saturday, October 9, 2010 at 1:22am by Allyse

Grade 12 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 the...
Sunday, January 5, 2014 at 6:53pm by Anonymous

Chemistry
Suppose you are going to add 450 mL of a 0.10 mol/L hydrochloric acid solution to 250 mL of a 0.2 mol/L sodium hydroxide solution. a)Which one is the limiting reactant? b)What is the theoretical yield of sodium chloride?
Saturday, December 10, 2011 at 5:05pm by Maame

Chemistry
Mg +2HCL = MgCl2 +H2 what mass of hydrogen is obtained by adding excess hydrochloric acid to 6g of magnesium
Tuesday, September 25, 2012 at 3:46pm by Connor

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