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August 20, 2014

Search: 2-chlorobutane reacts much more slowly than 2-chloro-2-methylpropane in the silver nitrate test

Number of results: 49,075

Organic Chemistry Lab
How does the allylic halide behave under SN2 and SN1 conditions? Briefly explain why the allylic halide should be able to undergo both SN2 and SN1 mechanisms. If this is any relevant to the question, we did an experiment on the SN1/SN2 reactivity of alkyl halides, using NaI in...
November 7, 2010 by Crystal

Organic Chemistry
Please Helppp!!!!!! 1)In the test with sodium iodide in acetone and silver nitrate in ethanol, why should 2-bromobutane react faster than 2-chlorobutane? 2) When treated with sodium iodide in acetone, benzyl chloride reacts much faster than 1-chlorobutane, even though both ...
February 18, 2010 by Ashley

chemistry
2-Methyl-2-propanol (tert-butanol) reacts to give 2-chloro-2-methylpropane (tertbutyl chloride) and 2-methyl-1-propene. The reaction mechanisms are:
September 8, 2010 by darali

chem
a 6.54 g sample consisting of a mixture of silver nitrate and sodium nitrate is dissolved in water. this mixture then reacts with barium chloride to for 3.50 g of silver chloride. calculate the percent by mass of silver nitrate in the first mixture
December 14, 2010 by christine

chemistry
The traditional method of analyzing the amount of chloride ion present in a sample was to dissolve the sample in water and then slowly add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding a slight excess of silver nitrate, it is possible ...
March 16, 2010 by James

Physical sciences
Copper reacts with silver nitrate according to the equation: Cu(s) + 2AgNO3(aq)= Cu(NO3)2(ag) +2Ag(s). If 0.50mol of copper is added to 1.5mol of silver nitrate , which is the limiting reagent and how many moles of silver are formed
June 17, 2013 by Tersia Malatji

Oranic Chemistry
2. Arrange the compounds of each set in order of reactivity toward an Sn2 reaction. a)t-butyl chloride, 1-chloropropane, 1-chloro-2,2-dimethylpropane, 1-chloro-2-methylpropane b)2-bromopropane, 2-chloropropane, 2-iodopropane
December 7, 2008 by Barbie

chemistry
Aqueous silver nitrate reacts with aqeous potassium iodide in a double-replacement reaction to produce a precipitate of silver iodide. If 34.6 ml of 0.563 M silver nitrate are used with 148.4 ml of potassium iodide: a) What molarity of potassium iodide will be needed to ...
December 6, 2011 by Rachel

Organic Chemistry
A student wanted to synthesize the anesthetic 2-ethoxy-2-methylpropane. She used ethoxide ion and 2-chloro-2-methylpropane for the synthesis and ended up with little of the desired product. Why? What major product did she obtain? What reagents should she have used?
November 21, 2010 by Sierra

chemistry
The addition of a dilute hydrobromic acid would clearly distinguish solutions of a. barium nitrate and sodium sulfate b. lead nitrate and silver nitrate c. mercury(I) nitrate and silver nitrate d. silver nitrate and calcium sulfate e. calcium nitrate and barium nitrate
December 18, 2009 by Joe

Organic Chemistry
In the tests with sodium iodide in acetone and silver nitrate in ethanol, why should 2-bromobutane react faster than 2-chlorobutane?
November 2, 2008 by Kim

AP Chem
I know this might sound easy... but i need these problems for bonus and i want to make sure they are right Silver nitrate reacts with strontium chloride in an aqueous precipitation reaction. What are the formulas of silver nitrate and strontium chloride? Write the molecular ...
October 27, 2008 by Anna-Marie

Chem
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.30 g of sodium carbonate is mixed with one containing 3.00 g of silver nitrate. How many grams of each of the following compounds are...
September 16, 2012 by Ezra

Science- chemistry
fuzzy silver coating is impure silver. it can be converted back into silver nitrate by reacting it with nitric acid what has been done to the reaction mixture to recover solid silver nitrate?
March 7, 2013 by Josh

Chemistry -
create a balanced chemical equation and state the type of reaction. Zinc metal reacts with aqueous silver nitrate to produce solid silver and an aqueous solution of zinc nitrate. please go step by step, would be very helpful.
May 29, 2010 by Lily

CHEMISTRY
Silver reacts with nitric acid to form nitrogen monoxide, silver nitrate and water. Calculate the volume of nitrogen monoxide gas (@STP) that can be produced from the reaction of 5.00g of silver?
October 7, 2013 by Pip

Chemistry
Okay, the question my teacher asked for one of our pre-labs went as followed: For each reaction, select one compound that reacts rapidly and give a structural equation for the process. Silver nitrate in ethanol I'm confused on how to do this. Also From my basic understanding ...
November 8, 2013 by ramire2

chemistry
I have to write a balanced equation for the reaction of a solid lead being added to a solution of silver nitrate. Solid silver forms and the lead disappears as it goes into the solution as lead (ii) nitrate. I think it should be Pb + AgNO3 >>>> Ag + Pb(NO3)2 does ...
April 14, 2014 by jazz

Organic Chemistry
Which of the following minor products could NOT arise from the halogenation rxn below? 2-methylpropane + Br2 -> 1-bromo-2-methylpropane + HBr + minor products a) 2,5-dimethyl hexane b) 2-bromo-2-methylpropane c) 1,3-dibromo-2-methylpropane d) 2,4-dimethylhexane e) 2,2,4 ...
June 30, 2010 by Sarz

chemistry
if 10 metric tons of silver nitrate is produced, how much would i need to charge per metric ton of silver nitrate to break even
May 17, 2013 by Anonymous

chemistry
An aqueous solution of silver nitrate contains 5.00 g of silver nitrate. To this solution is added sufficient barium chloride to precipitate all the silver as silver chloride. What mass, in grams, of dry silver chloride can be obtained?
September 21, 2008 by Erika

Chemistry
When sodium chloride reacts with silver nitrate, silver chloride precipitates. What mass of AgCl is produced from 192 g of AgNO3? Answer in units of g.
March 22, 2011 by Anonymous

Chemistry
1) The formation of water is represented by the following equation : 2H2(g) + O2(g) -> 2H2O(g) a.What is the limiting reactant if 4 mol of oxygen reacts with 16 mol of hydrogen? b.What amount (in moles) of water is produced in this reaction? 2) . Sliver nitrate, AgNO3(aq),...
December 19, 2012 by IMPO QUESTION

Solutions Chem
7) You have a 2.5M solution of Silver Nitrate. It contains 450mL of solution. How many grams of silver would you be able to extract? Cu (s) + 2AgNO3 (aq) -> 2Ag (s) + Cu (NO3)2 (aq) I've gotten this much: M=mol/L 2.5=mol/.45 mol= 2.5*.45 mol=1.125 Silver Nitrate= (Ag=107.9...
April 15, 2011 by Sarah

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?
February 28, 2010 by Tiffany

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?
February 22, 2012 by Jade

chemistry
When 5.00 grams of copper racts with excess silver nitrate, silver metls and sopper nitrate are produced. What is the theoretical yeild of silver in this reaction? please give step by step help
March 7, 2013 by Anonymous

Chemistry
If 6.51g of copper is reacted with 28.4g of silver nitrate, the products will be copper (II) nitrate and silver metal. What is the theoretical mass of silver that will be produced??
March 12, 2014 by juju

Chemistry..
When sodium chloride reacts with silver nitrate, silver chloride precipitates. What mass of AgCl is produced from 75.0 g AgNO3? My answer: 63.3g AgCl
December 31, 2012 by Anonymous

Chemistry - Science
A 6.70 g sample of a binary mixture of silver (I) nitrate and sodium nitrate is completely dissolved in water to make a solution. Aqueous barium chloride is then added to this solution in excess to form 3.60 g of silver chloride solid. What is the percent by mass of silver ...
March 25, 2014 by Anonymous

Chemistry
How would I calculate these? I have the answers because there from a previous test. 1) How much heat is required to raise the temperature of a 5.52-g sample of iron ( specific heat = 0.450 J/g C) from 25.0 degrees C to 79.8 degrees C? 2) You mix 60. mL of 1.00 M silver nitrate...
June 30, 2013 by Mary

chem 101
A 0.6753 g sample of an unknown metal was converted to the nitrate, MCl2, then a solution of the nitrate was treated with silver nitrate to give MCl2 (aq) + 2 AgNO3 → M(NO3)2 + 2 AgCl(s) silver chloride crystals. The silver chloride was isolated and weighed 1.7220 g. ...
March 17, 2012 by harley

CHEMISTRY
Write the net ionic equation for the reaction between...(and MUST INCLUDE STATES, please post answers to all so i can verify if im correct and explanation to one of them) a) potassium hydroxide and copper(I) nitrate b) potassium sulfite and lead(II) nitrate. c) lead(II) ...
April 6, 2014 by NEED HELP PLEASE!!!

Chemistry
how much silver nitrate must be measured to yield 1.00g silver?
October 18, 2009 by Katherine

Chemistry
How much silver is present in 3.5 ml of a 1 molar silver nitrate solution?
March 26, 2013 by Lindsey

Chemistry
it takes 37.50 mL of 0.152 M sodium chromate to titrate 25.00 mL of silver nitrate. what is the molarity of the silver nitrate solution
November 15, 2012 by Kendra

chemistry
If you start with 40.30 grams of silver nitrate and excess HCl, how much silver chloride could I make?
March 12, 2013 by Maryann

chemistry
The mass percentage of chloride ion in a 29.00 sample of seawater was determined by titrating the sample with silver nitrate, precipitating silver chloride. It took 42.42 of 0.2998 silver nitrate solution to reach the equivalence point in the titration.
October 4, 2011 by Cecelia

chemistry
3. You will be using 10.0 mL of silver nitrate solution labeled 170.0 g/L. How many grams of silver nitrate will be in your 10.0 mL sample?
March 12, 2013 by Anonymous

Chemistry
An anhydrous metal chloride, MCln, (1.500 g) is dissolved in water and the solution reacts with silver nitrate, requiring 47.34cm^3 of 0.5000M solution, to precipitate all the chloride as silver chloride. Identify M.
November 20, 2008 by Beth

Chemistry
Calculate the mass of silver nitrate, AgNO3, FW = 169.9 g/mole, that must be used to prepare 500.0 mL of 0.250 M silver nitrate solution.
October 16, 2011 by Anonymous

chemistry
When silver nitrate reacts with hydrochloric acid, what type of reaction takes place
March 5, 2010 by jackie

chemistry
when silver nitrate reacts with hydrochloric acid, what type of reaction takes place?
January 24, 2013 by hazel

Chemistry
how much silver can you expect to isolate from 10mL of a 0.5 solution of silver nitrate. please help i would really appreciate it
December 7, 2011 by Tabatha

Chemistry
What mass of silver nitrate is dissolved in 40.0 mL of a 0.400 M solution of silver nitrate?
December 6, 2010 by Ivy

Chemistry..
Can you check my answer?When sodium chloride reacts with silver nitrate, silver chloride precipitates. What mass of AgCl is produced from 75.0 g AgNO3? My answer: 63.3g AgCl
January 1, 2013 by Anonymous

chemistry
Let me try! Let me try! :) nickel(II)nitrate and zinc nitrate -->Ni|Ni^+2 (??M) ||Zn^+2 (??M)|Zn Iron(II) nitrate and zinc nitrate -->Fe|Fe^+2 (??M) ||Zn^+2 (??M)|Zn Silver nitrate and zinc nitrate -->Ag|Ag^+2 (??M) ||Zn^+2 (??M)|Zn Is this correct? Also, how would I ...
April 15, 2008 by Anna

Chemistry
seriously, any help would be much appreciated. You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery...
November 18, 2013 by kyle

Chemistry
A mixture contains only CuCl2 and FeCl3. A 0.7391 g sample of the mixture is completely dissolved in water and treated with silver nitrate. if 86.91 mL of 0.1463 M silver nitrate soultion is needed to precipitate all the chloride as silver chloride, what is the weight percent ...
October 2, 2011 by Jessica

Chemistry
Write and balance equations for the following reactions. A)Iron metal and Chlorine gas react to form solid iron(III) chloride. B)Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas. C)Solid magnesium reacts with aqueous silver nitrate to ...
February 28, 2010 by Jack

Organic Chemistry
When benzyl chloride is treated with sodium iodide in acetone, it reacts much faster than 1-chlorobutane, even though both compounds are primary alkyl chlorides
November 9, 2008 by Brian

Chemistry
When copper wire is placed into a silver nitrate solution, silver crystals and copper(II) nitrate solution form. If 57.1 g silver is actually recovered from the reaction, determine the percent yield of the reaction.
February 11, 2011 by Anonymous

Chemistry
Thank you for being helpful in the past. Could you check my interpretation of the three chemical word problems below,and,let me know if I'm on the right track? 1.Determine the mass of water vapor formed when 1.00g of Butane (C4H10)is burned in a lighter(combined with Oxygen)to...
November 3, 2010 by Cliff

chem
A chemistry lab experiment requires 33.3 g of silver nitrate. How many grams of a 14.1% by mass solution of silver nitrate should be used? _________g Solution
May 2, 2011 by jan

chemistry
If 50.0 grams of copper metal is added to a silver nitrate solution, what mass of silver is produced if copper 2 nitrate is also formed?
July 27, 2011 by yadira

Chemistry
A copper coil is placed in a solution of silver nitrate, the reaction proceeds and in time silver crystals form and the colution of copper nitrate is produced. What is the complete raction .
June 6, 2011 by June

Chemistry
A chemistry lab experiment requires 34.0 g of silver nitrate. How many grams of a 23.1% by mass solution of silver nitrate should be used?
December 10, 2010 by Anonymous

Organic Chemistry
When benzyl chloride is treated with sodium iodide in acetone, it reacts much faster than 1-chlorobutane, even though both compounds are primarily alkyl chlorides. Explain this rate difference.
November 2, 2008 by Kim

organic chemistry
When benzyl chloride is treated with sodium iodide in acetone, it reacts much faster than 1-chlorobutane, even though both compounds are primary alkyl chlorides. Explain this rate difference.
November 20, 2009 by Anonymous

Chem
AgNO3 (aq) + HCl (aq) AgCl (s) + HNO3 (aq) 40.30 grams of silver nitrate and excess HCl, how much silver chloride could you make?
February 27, 2011 by Gigi

Stoichometry
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 0.55 mole of sodium carbonate is mixed with one containing 0.55 mole of silver nitrate. After the reaction is complete, the solutions ...
December 19, 2012 by Nicola

chemistry
An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. what is the molality of silver nitrate in the solution?
June 12, 2011 by casey

Chemistry
We're learning about single displacement reactions. What happens when Mg + Zn two nitrate reacts? And when Al + Zn two nitrate reacts? Are there colour changes or precipitates formed?
March 17, 2011 by Mar

chemistry
According to the following reaction, how many grams of copper(II) chloride are necessary to form 0.984 moles silver chloride? silver nitrate (aq) + copper(II) chloride (s) silver chloride (s) + copper(II) nitrate (aq)
October 22, 2010 by Gina

Chemistry
When copper wire is placed into a silver nitrate solution, silver crystals and copper(II) nitrate solution form. Write the balanced chemical equation for the reaction. (Type your answer using the format CH4 for CH4.) 1 Cu(s) + 2AgNO3(aq = 2Ag(s) + 1Cu(NO3)2(aq) If a 23.5 g ...
February 9, 2010 by tdb

Chem.
How would someone extract silver from silver nitrate? *silver isn't soluable in water so I was thinking I wouldn't be able to do a single displacment reaction. I don't know how to go about this :S
November 24, 2008 by Lena

Literature
"Slowly, silently, now the moon Walks the night in her silver shoon This way, and that, she peers, and sees Silver fruit upon silver trees; One by one the casements catch Her beams beneath the silvery thatch; Couched in his kennel, like a log, With paws of silver sleeps the ...
April 8, 2013 by Anonymous

Chemisty
Please help...I know I'm missing something here if 50.0mL of AgNO3 reacts with 25.0mL of 0.100M of K2CrO4, what is the molarity of silver nitrate?
August 10, 2012 by Sheri

chemistry
silver iodide powder has been used as and antiseptic and as and agent to seed clouds for rain . silver iodide is 45.9% silver by mass . if you separtate a 50-g sample of silver and iodide , how much iodide is into its elements, silver and iodide how much silver would you have...
September 18, 2012 by amanda mosley

chemistry
How do I balance this equation for silver nitrate and sodium chloride reacting to form sodium nitrate and silver chloride. AgNO3 + NaCl = AgCl2 + NaNO3
January 7, 2009 by kayla

chemistry
what is the word equation for aqueous solutions of sodium chloride and silver nitrate are mixed to make an aqueous of sodium nitrate and silver choride solid
May 11, 2011 by des

chemistry
How many grams of solid copper must react with silver nitrate, AgNO3(aq), to produce 5.5 g of solid silver and copper(II) nitrate, Cu(NO3)s(aq)?
March 20, 2011 by franci

Chem answer check
Does this look correct? Thx! Write the balanced equation for the reaction between solid copper and silver nitrate, that produces solid silver and copper(II) nitrate in solution. Include your experimentally determined mole ratios for the copper and silver atoms as coefficients...
February 15, 2010 by Kelsey

chemistry this is a big one
mol Ag+ =1 MxVx10-3 MxV mol Cl- =1 0.01x20.00x103-= 0.2 so MxV=0.2 o9r M=0.2 V M=? mol/L silver nitrate Please then volumes of silver nitrate required 2.23 2.26 2.43ml average Vw = ? ml
June 2, 2012 by lynda

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 ...
November 2, 2007 by mel

Chemistry
What is the silver ion concentration in a solution prepared by mixing 487 mL of 0.384 M silver nitrate with 379 mL of 0.583 M sodium phosphate? The Ksp of silver phosphate is 2.8 10-18
January 19, 2013 by Gabby

Chemistry
What is the silver ion concentration in a solution prepared by mixing 345 mL of 0.352 M silver nitrate with 443 mL of 0.511 M sodium carbonate? The Ksp of silver carbonate is 8.1 10-12
March 11, 2013 by CP

Chemistry - Please help!
What is the silver ion concentration in a solution prepared by mixing 433 mL of 0.356 M silver nitrate with 467 mL of 0.574 M sodium phosphate? The Ksp of silver phosphate is 2.8 10^-18
September 8, 2012 by amanda1012

Chemistry--Plz HELP!
How would i go about balancing the following equation? My teacher said something about the charges: Silver Nitrate + Sodium Phosphate = Silver Phosphate + Sodium Nitrate
March 1, 2012 by Ali

Gen Chem II
You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for electroplating. You get ...
November 18, 2013 by kyle

Chem Help!
I really need help for my homework on how to write the balanced equation for the following reactions. 1) Sodium reacts with iron(lll)oxide to produce sodium oxide and iron. Type of reaction: Balanced Equation: 2) Hydrogen bromide forms from hydrogen and bromine. Type of ...
April 8, 2008 by Lisa

chemistry
What is the silver ion concentration in a solution prepared by mixing 385 mL of 0.380 M silver nitrate with 467 mL of 0.409 M sodium chromate? The Ksp of silver chromate is 1.2 10-12 I ended up making Ag+ = 2x. = 1.3 x10^-4 Which is incorrect so I'm not sure how to go about ...
January 24, 2013 by Angelyka

Organic Chemistry
1)1-cholorbutane 2)1-bromobutane 3)2-chloro-2-methylpropane 4)chlorobenzene 5)3-chloropropene 6)Benzyl chloride 7)allyl bromide 1. Compare Sn1 vs. Sn2 for the different halides used in this experiment. a)What type of halide is each of these; alkyl, vinyl, aryl, primary, ...
December 7, 2008 by Barbie

Chem 1010
Aqueous solutions of sodium sulfide and silver nitrate are mixed to form solid silver sulfide and aqueous sodium nitrate. The complete ionic equation contains which one of the following terms (when balanced in standard form)?
April 15, 2012 by Sirena

chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
October 19, 2011 by graciela

chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
October 19, 2011 by graciela

chemistry
What mass of silver chloride can be produced from 1.36L of a 0.130M solution of silver nitrate?
September 30, 2013 by samantha

Chemistry
we created a nickel coordination compound made of nickel and chlorine and we used silver nitrate to titrate it. If the silver nitrate solution had been exposed to light and reacted with chlorine, would the calculated percent of nickel been higher or lower than our outcome of ...
February 8, 2011 by Chelsea

Chemistry
0.658 g of potassium bromate and 0.562 g of silver nitrate are added to 388 mL water. Solid silver bromate is formed, dried, and weighed. What is the mass, in g, of the precipitated silver bromate? Assume silver bromate is completely insoluble. I've calculated the moles and ...
September 23, 2007 by Raj

10th grade
how much barium chloride is neccessary to react with silver nitrate
January 21, 2010 by khayree

CHEMISTRY--PLEASE HELP, URGENT
What concentration of silver chromate (Ksp = 9.0 x 10-12) will dissolve in 500. mL of 0.01 M aqueous silver nitrate?
April 12, 2010 by Maggie

chemistry
How many grams of copper will be required to replace silver from 200 mL of 3.00M solution of silver nitrate AgNO3?
March 30, 2011 by randy ramos

chemistry
How many grams of copper will be required to replace silver from 200 mL of 3.00M solution of silver nitrate AgNO3?
March 30, 2011 by randy ramos

Chemistry
Lead(II) nitrate reacts with potassium iodine to produce lead(II) iodide and Potassium nitrate. If 1.23 mg of lead nitrate are consumed, what is the mass of the potassium nitrate produced?
March 8, 2010 by stocihs hard

Chemistry Help
How many grams of silver will be obtained when an aqueous silver nitrate solution is electrolyzed for 22.0min with a constant current of 2.28A ?
April 16, 2014 by Michelle D.

Chemistry
How would you write skeleton equations for these reactions? I am very confused Hydrogen iodide(G)= Hyrdrogen(G)+Iodide(G) Aluminum(s)+iodines(s)= Aluminum iodide(S) Silver Nitrate (aq)+Sodium sulfide (aq)= silver sulfide(S)+ sodium nitrate (aq)
January 31, 2009 by Lauren

Chemistry
What mass (grams) of sodium phosphate is required to precipitate all silver ions from 94 mL of a 0.332 M solution of silver nitrate?
February 2, 2012 by Shea

Chemistry
Calculate the mass of silver bromide produced from 22.5 g of silver nitrate in the following rxn: 2AgNO3(aq) + MgBr2(aq)-->2AgBr(s)+ Mg(NO3)2 (aq)
May 28, 2012 by Melissa

chemistry
A reaction is run in which dissolved silver ions are reduced in the presence of solid copper. THis reaction can be used to produce a silver coating on a copper wire frame. .249g of copper wire was placed in a 100 mL of a 0.500 M solution of silver nitrate. What is the maximum ...
April 19, 2011 by mmmmm

chemistry
For these problem, I know how to solve it, but I have some issues with the formula. I know that, I need to write down the formula first, and then I need to balance the equation, then I can solve it. So, can anyone please check my formula? You don't have to solve the problem ...
September 10, 2009 by hh

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