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April 16, 2014

Search: treated with sodium iodide in acetone

Number of results: 5,349

Titrations (chem)
In the titration of a 0.101 M sodium hydroxide solution, 19.02 mL of 0.130 M sulfuric acid solution was required to neutralize the sodium hydroxide in reactions that replace both hydrogen ions of the sulfuric acid. Calculate the number of milliliters of sodium hydroxide ...
Sunday, April 3, 2011 at 4:07pm by Sarah

Chemistry(Please help)
For an acetic acid-sodium acetate buffer to have a pH of 4.64, what molar ratio of CH3COOH to Na+ CH3COO– is needed? I know that the Ka value for acetic acid is 1.8e-5 and that I have to divide this value by the value of sodium acetate but I do not understand how you get the ...
Monday, April 9, 2012 at 4:24pm by Hannah

Chemistry Gd 11
How many moles of chlorine gas would reacht with 10 moles of sodium to form sodium chloride?
Tuesday, November 9, 2010 at 12:05am by Tarkan

chemistry
What is the concentration of hydroxide ions in a solution of .31 M sodium acetate (NaCH3COO)? (The Kb for sodium acetat is 5.6 x 10^-10.)
Monday, November 15, 2010 at 7:51pm by Max

Chemistry
Will a double replacement reaction take place if a solution of sodium hyrdrogen carbonate is added to a solution of sodium chloride?
Thursday, April 21, 2011 at 9:48am by Jes

Chemistry
Calculate the amount of sodium acetate trihydrate needed to prepare 100 mL of 0.2M sodium acetate solution.
Tuesday, April 26, 2011 at 9:02am by Georgia

Chemistry
What is the mole fraction sodium acetate of a solution made by adding 0.145 g of sodium acetate to 119 ml water?
Friday, November 2, 2012 at 5:11am by Steve

Science 9
write formulas for each of these compounds: potassium phosphate ammonium sulfate sodium oxide For sodium oxide i got: Na 2 O
Friday, February 15, 2013 at 3:54pm by Molly

Chemistry
Metallic sodium adopts a body-centered cubic structure at 25 degrees C and 1 atm. The density of sodium under these conditions is 0.97 g/cm^3. What is the unit cell length?
Wednesday, January 2, 2008 at 4:09pm by David

chemistry
What mass in grams of sodium hydroxide is produced if 20.0 g of sodium meal reactts with excess water according to the chemical equation 2 Na(s)+2 H2O(l)=2 NaOH(aq)+H2(g)?
Wednesday, April 23, 2008 at 8:31pm by Anonymous

Chemistry
What is antacid? Why is sodium hydrogen carbonate an effective antacid but sodium hydroxide is not? Thx~
Friday, April 10, 2009 at 8:40pm by Anonymous

chemistry
what weight of sodium hydroxide(NaOH) is required to make 20ml of 5% (w/v) sodium hydroxide?
Saturday, August 20, 2011 at 9:52am by 97896

chemistry
How many grams of Sodium chloride are in 53.2 g of solution that is 0.50% by mass sodium chloride?
Sunday, December 4, 2011 at 4:47pm by Aamnda

chemistry
how many moles of sodium chloride are in 937 mL of a 1.88 M solution of sodium chloride?
Sunday, April 29, 2012 at 9:52pm by Randy

chem 4
How many grams of sodium chloride are needed to make 1 L of 0.9% (m/v) sodium chloride solution (“isotonic saline”).
Thursday, November 22, 2012 at 8:18pm by don

Chemistry
how many moles of sodium oxide are produced when 3.9 moles of of sodium combine with excess oxygen
Tuesday, January 29, 2013 at 10:38pm by Chris

chemistry
How many moles of sodium chloride are in 711 mL of a 2.01 M solution of sodium chloride
Sunday, November 17, 2013 at 5:23pm by Anonymous

Chemistry
Washing soda is added to hard water to allow soap to lather. A certain brand of washing soda contains partially hydrated sodium carbonate solid. A 0.300 g sample completely reacts with 20.0 mL of 0.250 M hydrochloric acid. a What mass of sodium carbonate was present? b ...
Tuesday, February 19, 2008 at 3:53am by Lauren

statistics
A group of 5 patients treated with a medicine 'A' aeigh 42,3,9,48,60 and 4r kg; a second group of 7 patients from the same hospital treated with medicine 'B' weigh 38,42,56,64,68,69 and 62 kg.Do you agree with the claim that medicine 'B' increases the weight significantly? The...
Thursday, September 8, 2011 at 8:42am by Ritu

Chemistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ...
Sunday, December 11, 2011 at 2:56am by bernan

Chmistry
Sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. The densities of Na(s) and Hg(l) are 0.97 g/cm3 and 13.6 g/cm3, respectively. A sodium amalgam is made by dissolving 1.0 cm3 Na(s) in 20.0 cm3 Hg(l). Assume that the final volume of the ...
Tuesday, December 13, 2011 at 10:55am by bernan

chemistry
AlI3 is aluminum iodide.
Tuesday, October 26, 2010 at 11:00pm by DrBob222

chemistry
What mass, in grams, of sodium hydroxide (NaOH) is produced if 20 grams of sodium metal(Na) reacts with excess water?
Tuesday, April 20, 2010 at 11:10am by Anonymous

chemistry
What is the pH of a sodium acetate solution prepared by adding 0.820g of sodium acetate to 100.0mL of water at 25 degrees?
Tuesday, March 29, 2011 at 2:34am by Natalie

chemistry
If you wanted to hydrolyze 1 mole of PLA into 1 mole of sodium lactic acid, how many moles of sodium hydroxide would you need?
Tuesday, February 22, 2011 at 8:01pm by meg

chemsitry
Calculate the mass in grams of sodium bromide, NaBr, are needed to prepare 250.0 mL of a solution of sodium bromide that is 3.50% (m/v).
Sunday, March 20, 2011 at 4:04pm by allen

CHEMISTRY.
Knowing that bleach contatins 5% aqueous sodium hypocholirte, how much sodium hypochlorite does 700ml of 10% bleach contain? (in grams)
Wednesday, September 14, 2011 at 8:05pm by ROSE

chemistry
if 30 grams of sodium (Na reacts completey with 28 grams of water, what is the mass of Sodium hydroxide (NaOH)formed?
Wednesday, October 12, 2011 at 1:47pm by Anonymous

chemistry
if 30 grams of sodium (Na reacts completey with 28 grams of water, what is the mass of Sodium hydroxide (NaOH)formed?
Wednesday, October 12, 2011 at 1:47pm by Anonymous

physical science
find the mass of sodium chloride formed when 6.9g of sodium burns in a gas jar filled with chlorine gas.
Wednesday, February 22, 2012 at 3:17pm by winston

Chemistry
If you have 250 mL of 2 M of sodium sulfate diluted to make 0.500 M of sodium sulfate, how would you figure out the volume?
Tuesday, April 10, 2012 at 7:13pm by Julia

Chemistry
A 208 g sample of sodium-24 decays to 13.0 g of sodium-24 within 60.0 h. What is the half-life of this radioactive isotope?
Tuesday, December 11, 2012 at 11:08pm by Matthew

Chemistry-II (Percent Composition)
In your first question, 1 mole of sodium carbonate=2 moles of sodium=1 mole of carbon =3 moles oxygen. Take the moles for each of the components in sodium carbonate and multiply them by their respective molecular weights e.g. 3 moles of oxygen* 15.999g/mole to calculate the ...
Wednesday, January 23, 2013 at 10:06am by Devron

Chemistry
Automobile air bags employ a chemical reaction involving the rapid decomposition of sodium azide (NaN3) into sodium metal and nitrogen gas to inflate in a collision. How much sodium azide is required to decompose to inflate a 20.0 L air bag? Assume that the gas is at standard ...
Wednesday, June 5, 2013 at 10:52am by Anonymous

math (Damon) check step by step for me
A mixture of pure k2cr207 and pure kmno4 weighing 0.561g was treated with excess of ki. In acidic medium. Iodine liberated required 100ml of 0.15M of sodium thiosulphate solution for exact oxidation. The right answer 43.67 k2cr207 and 56.33 kmn04 K2cr207 = 294 (X) kmno4 = 158...
Thursday, January 2, 2014 at 11:26pm by Fai

Chemistry
You have changes ONLY when you have an ion. Atoms are neutral. Sodium ion + chloride ion ==> NaCl Na^+ + Cl^- ==> NaCl(s) sodium + chlorine ==> sodium chloride 2Na + Cl2 ==> 2NaCl
Wednesday, February 4, 2009 at 7:31pm by DrBob222

Chemistry
If you put sodium chloride grains into water, they dissolve, right? What pulled those sodium and chloride ions away from the crystal?
Wednesday, February 17, 2010 at 1:10am by bobpursley

chemistry
A SOLUTION OF 0.05METER ACID PKA 6.10 IS MIXED WITH AN EQUAL VALUE 0.1 SODIUM SOLUTION OF SODIUM SALT WHAT IS THE PH OF THE FINAL MIXTURE.
Tuesday, March 30, 2010 at 12:25pm by ronke

Chemistry
a certain brand of laundry aid called "Oxydoodle" is 12.5% (w/w) sodium percarbonate and 87.5% (w/w) sodium carbonate. Calculate the % (w/w) h2o2 in Oxydoodle
Monday, November 22, 2010 at 8:17pm by Shannon

Chemistry
A student reacts 20.0 grams of sodium hydroxide with hydrochloric acid and obtains 25.0 grams of sodium chloride. What is the percent yield?
Sunday, April 3, 2011 at 7:20pm by Lisa

Chemistry
if we mix 25 grams of sodium bromide with a large amount of potassium chloride, what will our theoretical yield of sodium chloride be?
Monday, February 4, 2013 at 9:24pm by Enrique Loza

chemistry
How many grams of chlorine are required to react completely with 5.00 grams of sodium to produce sodium chloride ? 2na + cl2 → 2nacl
Thursday, February 10, 2011 at 12:58pm by mispa

Chemistry
How many grams of chlorine are required to react completely with 5.00 grams of sodium to produce sodium chloride ? 2na + cl2 → 2nacl
Friday, March 29, 2013 at 12:55pm by mispa

Chemistry
What mass in grams of a 0.500 m(molal) solution of sodium acetate, CH3CO2Na, in water would you use to obtain 0.200mol of sodium acetate?
Sunday, February 2, 2014 at 3:59am by Jessica

chemistry
How many moles of excess reactant are present when 3.50 x 10^2 mL of 0.216 M sulfuric acid reacts with 0.510 L of 0.202 M sodium hydroxide to form water and aqueous sodium sulfate?
Saturday, September 19, 2009 at 10:23pm by larry

chemistryhelp
how many moles of excess reactant are present when 3.20 x 10^2 mL of 0.226 M sulfuric acid reacts with 0.531 L of 0.185 M sodium hydroxide to form water and aqueous sodium sulfate
Wednesday, October 2, 2013 at 1:13am by sydney

chemistry
What is the volume in milliliters of 7.24 {\rm g} of acetone?
Tuesday, September 21, 2010 at 12:46pm by cathie

science
why does the addition of acetone cause the polystyrene to change shape?
Thursday, November 4, 2010 at 3:56pm by Karen

chemistry
I believe the answer is 2-propanol is oxidized to acetone.
Tuesday, January 18, 2011 at 7:19pm by DrBob222

Chemistry
Which has the higher vapor pressure, acetone or octane?
Thursday, May 24, 2012 at 8:57am by Lisa

Chemistry
Describe how to make 500.0 mL of 3.6 M acetone
Friday, October 26, 2012 at 1:04am by Anne

college
sodium metal dissolves in liquid mercury to form a solution called a sodium amalgam. the densities of Na(s) and Hg(l) are 0.97g/mL and 13.6g/mL. a sodium amalgam is made by dissolving 1.0 mL Na(s) in 20.0 mL Hg(l). the final volume is 21.0 mL. What is the molality of Na in the...
Tuesday, May 17, 2011 at 9:46pm by Amy

chem
At hihg temperatures Sodium chlorate decomposes to form Sodium Chloride and Oxygen gas. A 0.8765 gram sample of sodium chlorate was heated until the reaction ended when Oxygen gas production was ceased. The Oxygen gas collected over water occupied 57.2 ml at temperature of 295...
Sunday, March 16, 2008 at 4:00pm by Anonymous

Chemistry Balancing Equations
Can you please tell me if these are correct? 1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide gas, water and sodium chloride NaHSO3 + HCl -----> SO2 + H2O + NaCl 2. Sodium nitrate reacts with hydrochloric acid to produce nitrogen monoxide ...
Monday, March 14, 2011 at 3:24pm by Anonymous

chemistry
That is sodium hydrogencarbonate, or sodium bicarbonate. That type of fire extinguisher has not been around many years. H2SO4+NaHCO3 >> CO2 + H20 + Na2SO4 balance the equation. Then, calculate the moles of sodium bicarbonate you have in 600 grams. From the mole ...
Saturday, April 17, 2010 at 3:35am by bobpursley

*Chemistry
Hydrogen reacts w/ sodium to produce solid sodium hydride, NaH. A reaction mixture contains 6.75 g Na and 3.03 g H2. A. Which reactant is limiting? B. What is the theoretical yield of NaH from the above reaction mixture? C. What is the percent yield if 4 g NaH is formed? Laura...
Sunday, August 28, 2005 at 11:35am by Laura

chemistry
A solution was prepared by adding 0.5283 g of sodium hydroxide to a 50 mL volumetric flask. What is the concentration of sodium hydroxide in moles per liter?
Wednesday, May 18, 2011 at 5:03pm by James

chemistry
A solution was prepared by adding 0.5283 g of sodium hydroxide to a 50 mL volumetric flask. What is the concentration of sodium hydroxide in moles per liter?
Wednesday, May 18, 2011 at 5:07pm by James

chemistry
The directions state "weigh about 5 grams of sodium chloride". Give minimum and maximum amounts of sodium chloride that would satisfy these instructions.
Tuesday, February 11, 2014 at 9:42pm by Rachel

Organic Chemistry
a) Iodide is a strong nucleophile but a weak base, so SN2 is the preferred reaction. Only the bromine on C1 is eligible to undergo SN2, so that one will be replaced by iodide. b) Silver ion tends to suck off a halide ion and leave a carbocation, which means E1 and SN1. If ...
Friday, November 1, 2013 at 5:33pm by Bill Nye the Science Guy

chemistry
The bromination of acetone is acid-catalyzed. CH3COCH3 + Br2 CH3COCH2Br + H+ + Br - The rate of disappearance of bromine was measured for several different concentrations of acetone, bromine, and H+ ions at a certain temperature. [CH3COCH3] [Br2] [H+] rate of disappearance of ...
Monday, February 1, 2010 at 1:22pm by danielle

science
Don't you mean potassium iodide (K I) ? What is a stan?
Friday, January 28, 2011 at 9:16am by drwls

Health: Sodium
How does 2400 miligrams compare with 0.125 grams? http://www.annecollins.com/sodium-rda-diet.htm
Monday, September 27, 2010 at 8:06pm by Ms. Sue

chemistry
wikipedia has a nice article on sodium bicarbonate. In it, we find: NaHCO3 may be obtained by the reaction of carbon dioxide with an aqueous solution of sodium hydroxide. The initial reaction produces sodium carbonate: CO2 + 2 NaOH → Na2CO3 + H2O Further addition of ...
Friday, September 27, 2013 at 11:40am by Steve

chem
I have the following problems- write net ionic equations for reactions if no reaction write NR.... silver nitrate and ammonium carbonate sodium phosphate and potassium nitrate silver nitrate and barium chloride copper (II) chloride and sodium hydroxide cobalt (III) chloride ...
Friday, November 2, 2007 at 6:51pm by mel

chemistry
Sodium chloride is decomposed into the elements sodium and chlorine by means of electrical energy. How many grams of chlorine gas can be obtained from 2.50 mol NaCl?
Tuesday, May 4, 2010 at 12:28am by anna

chemistry
Calculate the heat released when 4.260 L Cl2 with a density of 2.46 g/L at 25°C reacts with an excess of sodium metal to form solid sodium chloride at 25°C.
Friday, October 29, 2010 at 1:37am by caroline

chemistry
Calculate the heat released when 4.260 L Cl2 with a density of 2.46 g/L at 25°C reacts with an excess of sodium metal to form solid sodium chloride at 25°C.
Sunday, October 31, 2010 at 5:15pm by Emily

Science
Think about the differences in both the physical and chemical properties of table salt (sodium chloride) and its constituents, sodium and chlorine. I can't think of a better example.
Wednesday, May 11, 2011 at 3:05pm by drwls

science(chemistry)
why sodium carbonate against hydrochloric acid titration using phenolphthalein indicator does not go to completion but stops at the sodium hydrogen carbonate stage.
Monday, November 21, 2011 at 6:14am by yussif

science
sodium is a metal and chlorine is a poisonous gas. Neither is safe to eat. However, when sodium and chlorine combine, it produces edible table salt. What can be concluded?
Sunday, December 15, 2013 at 9:20pm by Amatullah

chemistry
How ml silver nitrate solution (0.05 mol / l) K = 1.0000 consumed for titration of sodium chloride, 0.0500 g. MW Sodium chloride 58.44.
Tuesday, March 25, 2014 at 2:37pm by ULIA

Chemistry
a) We can't draw structures on this board. b) XCS2 = n CS2/total mols. Xacaetone = n acetone/total mols. Pacetone = Xacetone*Po acetone. PCS2 = XCS2*Po CS2 Ptotal = PCS2 + Pacetone. c) Xacetone in vapor = Pacetone/Ptotal XCS2 in vapor = PCS2/Ptotal
Sunday, March 11, 2012 at 4:14am by DrBob222

chemistry
How many grams of sodium are contained in 10 grams of sodium sulfate?
Saturday, April 30, 2011 at 7:03pm by Anonymous

science(chem) Dr.Bob-> need help on this long lab
For 1 part of the lab I: prepare 4-Bromo-2-chloro-6-iodoaniline I dissolve 250mg recrystallized 4- Bromo-2-chloro-6-iodoaniline in 4ml of glacial acetic acid in 25ml erlenmyer flask and add 1ml water to the mixture. Then I prepare a solution of 250mg technical iodine ...
Tuesday, March 11, 2008 at 5:27pm by ~christina~

chemistry
At what temperature (in degrees C ) does acetone have Pvap= 102mmHg?
Wednesday, January 20, 2010 at 7:09pm by aamani

Chemistry
To DrBob222 - it starts as an aqueous solution, with acetone then added.
Thursday, March 18, 2010 at 8:04pm by Heather

Chemistry
Not much to go on here but I think acetone may be the solvent.
Tuesday, April 12, 2011 at 5:17am by DrBob222

MaTH
a can of soda contains 40 milligrams of sodium. how many cans woild it take to concume a gram of sodium? I tried working, not sure if correct -help 40 X 0.001 = 0.04
Monday, August 10, 2009 at 3:16pm by DEBBIE

Chemistry
I have no idea how to approach this problem. Given sodium hydroxide, sulfuric acid, sodium silicate and magnesium hydroxide, which has low solubility? Please help, I'm reviewing for a test.
Thursday, December 17, 2009 at 8:00pm by Jan

biology
Total body sodium content determines extracellular fluid volume, and is regulated by the balance between sodium intake and sodium loss. Oubain is a poison that causes blockage of the Na+/K+ ATPase. Which of the following would occur after administration of oubain? Explain why...
Tuesday, February 14, 2012 at 5:51pm by jack bauer

chemistry
Long but quick chemistry lab that I need confirmation on answers if possible? OK so I have this lab that went pretty quick and smooth and I have an online assessment that I needed to put all my figures in. I am all complete but am having trouble with 3 problems that the ...
Saturday, June 20, 2009 at 4:22pm by Capacino

chemistry
An ice-bath made with sodium chloride will be 9 ± 1 oC when the solution is about 23% sodium chloride by mass. The density of solid sodium chloride is about 2 g/cm3. What volume of solid NaCl would you add to 200 g water to make a 23% NaCl solution? ANY HELP WOULD BE AWESOME!...
Thursday, February 13, 2014 at 9:37pm by Jamie

Chemistry
what mass in grams of sodium hydroxide is produced if 20.0g of sodium metal reacts with excess water according ro the chemical equation, Na(s)+H2O4->naoh(aq)+h2(g)
Sunday, March 10, 2013 at 11:07pm by Fatima

Chemistry
Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate. Suppose 45.98 mL of 0.060 M silver(I) nitrate solution and 26.64 mL of 0.10 M sodium sulfate solution are mixed. What is the maximum number of grams of silver(I) sulfate that can be made?
Wednesday, February 22, 2012 at 5:07pm by Jade

Chemistry
A solution of 100.00mL of 0.2000mol/L sodium carbonate and 200.00mL of 0.1000mol/L calcium nitrate solutions are mixed together according to the reaction: sodium carbonate + calcium nitrate→ calcium carbonate + sodium nitrate. how would you calculate the mass of calcium ...
Monday, August 20, 2012 at 9:46am by Walker

Physical Science
Look up potassium iodide
Thursday, May 15, 2008 at 10:09pm by DrBob222

Chemistry
What is cis-1,2-dimethylethylene? What is hydrogen iodide solution?
Wednesday, November 19, 2008 at 12:47pm by bobpursley

Chemsitry
Strontium oxide; chronium(II)iodide
Saturday, October 23, 2010 at 12:39pm by bobpursley

chemistry
What is the BCA table for Potassium iodide and chlorine
Sunday, May 20, 2012 at 6:14pm by Lyle

chemistry
What are strongest intermolecular force in hydrogen iodide ?
Saturday, March 29, 2014 at 1:59pm by john

Chemistry
If I am titrating KMnO4 against a sample of Fe2+, but there is also I- in the sample which of the iron and iodine will be oxidised first? Unless something is present in the sample to complex the iodide ion, KMnO4 may titrate both. How are you titatrating it? What are you using...
Saturday, March 10, 2007 at 4:41pm by James

chem.
Silver(I) nitrate and sodium sulfate react to form silver(I) sulfate and sodium nitrate. Suppose 43.5 mL of 0.040 M silver(I) nitrate solution and 26.58 mL of 0.10 M sodium sulfate solution are mixed. What is the maximum number of grams of silver(I) sulfate that can be made?
Sunday, February 28, 2010 at 5:54pm by Tiffany

science (chem)
But if I have to use excess acetic acid wouldn't that produce more water than another rxn which does not? I have to take out the water with anhydrous sodium sulfate after extracting with the water & sodium bicarbonate solution....but I guess that woudn't make a difference ...
Wednesday, February 27, 2008 at 10:04pm by ~christina~

solubility graph
What temperature is necessary in order to dissolve twice as much fo these solids in 100cm3 of water as can be dissoved at 20gC. a. sodium nitrate b. potassium nitrate c. sodium choride
Monday, November 10, 2008 at 5:40pm by tony

chem
What is the volume of 0.25M PMSF & volume of 14.3M 2-mercaptoethanol needed in 25 mL of 20 mM sodium phosphate? MW of sodium sulfate = 137.99
Sunday, March 7, 2010 at 9:53pm by Estelle

chemistry
which of the following was not one of the products when you titrated the vinegar solution with sodium hydroxide? HC2H3O2+NaOH===>NaC2H3O2+H2O a salt water sodium acetate acetic hydroxide
Tuesday, July 13, 2010 at 4:05pm by Anonymous

chemistry
What is the freezing pint of 0.0091 m aqueous sodium phosphate, Na3PO4? Assume that sodium phosphate is a strong electrolyte and it functions ideally in solution. (express your answer in degrees Celsius)
Tuesday, September 14, 2010 at 6:56pm by shawn

chemistry
If 16.9 g sodium carbonate is obtained from the thermal decomposition of 75.0 g of sodium hydrogen carbonate according to the unbalanced equation, NaHCO3 ¨ Na2CO3 + H2O + CO2 What is the percent yield?
Sunday, September 18, 2011 at 1:04pm by kaci

science
Divide the mass by the density of sodium, 0.97 g/cm^3. Then convert volume (in cm^3) to liters if necessary. You seldom see pure solid sodium because it reacts with the water in air.
Monday, December 19, 2011 at 11:42am by drwls

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