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December 11, 2016

Search: how many mL urea solution required to react with Fe3+

Number of results: 31,098

Chemistry
Accurately weigh 0.9-1.1 g into a 200 mL beaker. Dissolve the KIO3 in a small amount of distilled water. Quantitatively transfer, with rinsing, to a 500 mL volumetric flask. Dilute to the calibration mark and shake well. Rinse the buret several times with small portions of the...
September 30, 2014 by Jessica Horen

Chemistry
Ground water intially contains 1.800mg/L of iron as Fe3+. What must the pH be raised to in order to precipitat all but 0.30mg/L of iron. The tempertaure is 25 degrees celcius
January 18, 2011 by Emmanuel

Math
A juice concentrate containing 65% solids is added to a single-strength juice solution(containing 15% solid), in order to generate a final product which contains 45% solids. Calculate the amounts required for the concentrate and for the single strength solution to produce ...
February 7, 2012 by Janice

Chem
1. If 36.23 mL of potassium permanganate solution is required to titrate 1.041 g of FAS (FeSO4(NH4)2SO4 * 6 H2O, molar mass = 342.0 g), calculate the molarity of KMnO4.
March 10, 2008 by Chris

Chem 1
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of .1062 M KMnO4 solution are required to reach the endpoint?
October 21, 2013 by Haley

Chem 1
Suppose 1.624g of salt FeSO4 is placed in a 250mL flask to which 50mL of water and 10 mL of 3M H2SO4 are added. How many mL of .1062 M KMnO4 solution are required to reach the endpoint?
October 21, 2013 by Haley

Analytical chemistry
Calculate to four decimal places the mass of purely dry MgCO3(Magnesium Carbonate) required to make 1L of a 1000 ppm Mg stock solution.
October 20, 2016 by cindy

Chemistry - Please Help!
XeO3 + I- ----> Xe + I2 (acidic solution) CN)2 -----> CN- + OCN- (basic solution) MnO2 + SO32- ---> Mn2+ + S2O62- (acidic solution) H2SeO3 + H2S -----> S + Se (acidic solution) Cl2 ---> Cl- + ClO3- (basic solution) ClNO2 -----> NO3- + Cl- (acidic solution)
October 27, 2013 by Brittney

Chemistry
Determine how many mL of solution A (acetic acid-indicator solution) must be added to solution B (sodium acetate-indicator solution) to obtain a buffer solution that is equimolar in acetate and acetic acid. Solution A: 10.0 mL 3.0e-4M bromescol green solution 25.0mL 1.60M ...
October 29, 2012 by Jake

chemistry
How many milliliters of a 4.5 M HCl solution would be needed to react completely with 5.8 g of aluminum? I know the answer is somewhere around 143 mL HCl, but I CANNOT figure out how to find that answer. I have done a conversion from g of Al to mL of HCl and I cannot find the ...
May 5, 2015 by Reeseamelia

Chemistry
Hi, my question is: "Classify each of the following as saturated, supersaturated, or unsaturated: KNO3 90g/100g at 82*C NaCl 36g/100g at 23*C KCl 35g/100g at 18*C NaNO3 90g/100g at 28*C How do I determine if they are saturated, supersaturated, or unsaturated? Since the ...
June 11, 2006 by Waleed

Chemistry
Determine the identity of an unknown solution that formed a yellow precipitate with solution 1, No Reaction with solution 2, No Reaction with solution 3, and a canary yellow solution with solution 4?
May 1, 2012 by Tiffany

chemistry
Suppose 70.00 mL of a lithium hydroxide, LiOH, solution requires 55.42 mL of a 0.1050 M solution of propanoic acid, C2H5COOH, for neutralization. LiOH + C2H5COOH ® C2H5COOLi + H2O What is the concentration of the base solution? 0.08313 M 0.1663 M 0.3325 M 0.6650 M Question 2 ...
October 9, 2010 by hope

chemistry
back again with another analytical Q, the question tells you to prep a 50 mL solution of a 750 ppm iron solution using ammonium iron III oxalate trihydrate (MM: 428.06 as a source of iron. Determine the mass of compound required. I'm assuming you would start with a molarity ...
August 27, 2015 by paul

physics
A hypodermic syringe is attached to a needle that has an internal radius of 0.303 mm and a length of 3.02 cm. The needle is filled with a solution of viscosity 2.00 10-3 Pa · s; it is injected into a vein at a gauge pressure of 16.1 mm Hg. Ignore the extra pressure required ...
March 22, 2013 by ray

Chemistry
A 25 mL sample of wine is found to have a concentration of acetic acid of 0.23 M. If this was titrated with a 0.16 M NaOH solution how many mL's of NaOH would be required?
November 27, 2010 by Susan

Please HELP CHEM
How many grams of CaCl2 would be required to be added to water to prepare 1liter (1000ml) of a 1.72% (w/v) aqueous solution of CaCl2?
April 28, 2011 by Tina

chemistry
what is the total mass of LiBr required to make 500.0 grams of an aqueous solution of LiBr that has a concentration of 338 ppm?
June 22, 2011 by Lauren

chemistry
what is the total mass of LiBr required to make 500.0 grams of an aqueous solution of LiBr that has a concentration of 338 ppm?
June 22, 2011 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
How many grams of sodium chloride, NaCl (fw 58.44), are required to prepare exactly 200 mL of a solution that is 600 ppm in sodium ions?
February 28, 2012 by Dee

Chemistry
A solution of I2 was standardized with ascorbic acid. Using a 0.0500 g sample of the acid, 26.50 mL of I2 were required to reach the starch end point.
April 14, 2014 by Alexis

chemistry
How many milliliters of a 0.100 M NaOH solution are required to neutralize 25.0 milliliters of 0.150 M HCl? Select one: a. 25.0 ml b. 37.5 ml c. 125 ml d. 167 ml
July 24, 2014 by Alex

Chemistry
how many cubic cm hydrogen chloride gas at s.t.p would be required to precipitate all the silver ions from 32 cm of 0.08 M silver nitric solution?
September 23, 2016 by Doris

Chem!!!!!!
5. Concentration of 0.24L KMnO4 solution required to oxidize 2.7g of Oxalic Acid??? 5H2C2O4 (aq) + 6H+ + 2MnO4- (aq) --> 10CO2 (g) + 2 Mn2+(aq) +8H20 (l) 4.How many grams of calcium chloride can be prepared if a student uses 500g if calcium carbonate and 2.00L of a 4.00 Mol...
June 5, 2009 by Alex

chemistry who helps me step by step
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. calculate the percentage of fe204 7h20 in the sample. My calculation 0.02x...
January 11, 2014 by Fai

Chemistry
Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation, the over all ionic equation, and the net ionic equation for this reaction. If 16.06g of copper(II) chloride react, what is the maximum amount of ...
March 16, 2010 by Steven

chemsitry
How many grams of propane (C3 H8 ) will react with 3.29 L of O at 1.05 atm and -34°C? i know the balanced eqn is 1C3H8 + 5 O2 -----> 3CO2 + 4H20 and that PV=nrt , with T= -34 + 273.15 = 239.15K. n=(PV)/(RT) (F=for O2). = 0.176 mol O2 0.176 mol O2 * (1mol C3H8 / 5mol O2) * ...
October 23, 2014 by leila

biology
take an apricot , a walnut , few raisins square peice of spinach ,shelled egg and deshelled egg. prepare four solutions A,B,C and D.solution A is a10% solution of suger ,solution B is 80%suger solution ,solution C is10% salt solution and solutionD is80%salt solution In ...
May 24, 2016 by kumkum

chemistry
Nitrogen and oxygen react to form nitric oxide (NO). All substances are in the gas phase. If 0.352 atm of nitrogen and 0.511 atm of oxygen react, what is the partial pressure of nitric oxide (in mmHg) when this reaction goes 73.9 complete. The temperature and volume are constant.
April 10, 2014 by shaina

Chem.
The experiment requires 1 mg per ml of iron (Fe3+). What mass of iron (III) nitrate hexahydrate (Fe(NO3) - 6H2O) would you need to dissolve in 1 litre to achieve this value?
February 17, 2010 by Purple

Chemistry
Consider the following electochemical cell. Pt | Fe3+ (0.0600 M), Fe2+ (6.50e-5 M) || Sn2+ (0.0620 M), Sn4+ (3.90e-4 M) | Pt (a) Calculate the voltage of the cell, Ecell, including the sign.
April 3, 2011 by Logan

science
Which law of chemical combination is illustrated by the fact that 168g fe reacts to from 232g Fe3 O4 and 8gH2 Plz give me the answer as am struck last to submit my assignment plz plzhelp me
December 4, 2015 by farheen fathima

ap chemistry
for the following, mix the equal volumes of one solution from group I with one solution from group II to achieve the indicated pH. calculate the pH of each solution. Group I: .2M NH4Cl, .2M HCl, .2M C6H5NH3Cl, .2M (C2H5)3NHCl Group II: .2M KOI, .2M NaCN, .2M KOCl, .2M NaNO2 a...
February 9, 2012 by hannah

science
'm'gms of carbon reacts completely with 'n'gms of oxygen to produce carbon-dioxide.The mass of oxygen required to react with 'm'gms of carbon completely and produce carbon-monoxide is
August 1, 2011 by sameena

science please help
Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion? a. inefficient protein production b. insufficient mitochondrial function c. impaired urea elimination d. absence of oxygen transporters on the cell ...
May 13, 2015 by john

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?
July 5, 2011 by anjan

Biology
How many grams of the molecule in the figure above would be required to make 1 L of a 0.5 M solution of the molecule? H O | || (looks like C=O on the vertical) H-C-C-O-H | H a.29 b.30 c.60 d.150 e.342
December 11, 2008 by Emma

Chemistryy
what mass of silver nitrate (AgNO3) is required to prepare 400 grams of a 3.50% solution of AgNO3? Options: 1. 0.00875 g 2. 114.28 g 3. 1400 g 4. 14 g
July 13, 2010 by alexandra

chemistry
You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is availalbe. How many grams of the hydrated compound are required for 250ml of the reagent? Ca=40 Cl=35.5
September 5, 2010 by j

chem
36.00mL of KMnO4 is required to oxidize 25.00mL of 0.02932M Na2C2O4 solution. what is the concentration ofKMnO4? Do I just use C1V1=C2V2? Thank You
May 22, 2011 by Meso

chemistry
Titration of 25.00 mL of KOH required 200.00 mL of 0.0050 M acetic acid, CH3COOH. What is the molarity (M) of the KOH solution? Please show calcutions.
November 11, 2011 by Toya

chemistry
How many milliliters of 16.0 M HNO3 stock solution wouuld be required to prepare 100.0mL of 3.00 M HNO3? Use the formula M1V1=M2V2
January 23, 2012 by missy

Biology
Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.
September 23, 2012 by Debbie

chemistry
Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.
September 24, 2012 by Debbie

Chemistry
If 22.15 milliliters of 0.100 molarity sulfuric acid is required to neutralize 10.0 milliliters of lithium hydroxide solution, what is the molar concentration of the base?
November 28, 2012 by Kaela

chem 101
How much heat is required to raise the temperature of exactly one liter of water fro m 60 °F to 180 °F? a. 79 kJ b. 120 kJ c. 251 kJ d. 279 kJ correct** e. 502 kJ help with solution?
April 13, 2012 by Anonymous

AP Chemistry
An unknown amount of water is mixed with 350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 52.5 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M I didn't know what to ...
September 20, 2015 by Anonymous

Chemistry
In the reaction: P4 (S) +Cl2 (g)PCl5(s), 1. If you have 10.00 grams of Phosphorus to react with 220 grams of Chlorine gas, what would be the theoretical yield of PCl5(s), in grams? 2. Why was there condensation of the beaker of cold water when a blue flame was passes ...
December 4, 2010 by Jerome

Physics
15. A refrigerator weighing 1500 N is to be lifted onto a truck bed that is 1.0 m above the ground. When pushed up a slanting ramp 2.0 m in length a force parallel to the ramp of only 800 N is required to move it at constant velocity. Comparing the work involved in lifting the...
July 8, 2014 by Anonymous

Chemistry
Consider equation 3A+B=C+D. You react 4 moles of A with 2 moles of B. Which of the following is true? 1) Limiting reactant (L.R.) is one with higher molar mass 2) A is L.R. because you need 6 moles of A and have only 4 moles 3) B is L.R. because you have fewer moles of B than ...
September 11, 2010 by Melissa

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
What is the molarity of the final solution if 2.00mL of the 5.00 M stock solution is diluted to 10.00mL to make solution A? Solution A then undergoes a second dilution by taking 3.00mL solution A and diluting it to 25mL.
November 15, 2016 by Chem

Chemistry
What is the molarity of the final solution of 2.00mL of the 5.00M stock solution is diluted to 10.00mL to make solution A. Solution A undergoes a second dilution by taking 3.00mL solution A and diluting it to 25mL? I'm so confused by this. Please help.
November 10, 2016 by jamie

Chemistry
A teacher prepares a saturated NaCli solution at 55 Degree C. What is the % by mass 9m/m0 of this solution? what is the concentration of this solution expressed in ppm? What is the molality of this solution? If the density of the solution is 1.07 g/ml, what is the % m/v of ...
March 21, 2007 by nancy

math steve for your help
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of fes047h20 in the sample The answer 88.96% My ...
December 29, 2013 by Fai

CHEM HELP ASAP
I figured all the parts of the problem except for the last one. Can you tell me what to do? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50....
October 10, 2012 by Kelli

CHEM HELP ASAP
I figured all the parts of the problem except for the last one. Can you tell me what to do? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50....
October 10, 2012 by Kelli

Science
Three acids solutions have the following pH: Solution A: pH = 2 Solution B: pH = 5 Solution C: pH = 3 Which solution is made with the acid that has the smallest ionization constant?
June 30, 2011 by Megan

chemistry
how many moles of solute are contained in each solution? 250 mL of a 0.55 M NaNO3 solution? 145 mL of a 4.0 M HNO3 solution? 6.5 L of a 2.5 M HCl solution?
April 11, 2010 by cathy

High School Chemistry
10mL of 0.10M HCl is given. What is the pH? How many milliliters of 0.10M NaOH would be required to neutralize it? What is the pH of the neutralized solution? What would the pH of the solution be if you added 20mL of NaOH? Here's what I have so far: pH of HCl=-log(0.10M)= 1 ...
March 21, 2011 by Becky

Accounting
Revenue is earned when: A. Contract is signed by both parties B. The seller substantially completes performance required by an agreement C. Buyer completes payment required under an agreement D. The buyer accepts delivery and completes required payments. Answer: D
August 11, 2015 by Anthony

Chemistry
You are required to prepare 100g of potassium nitrate crystals from its saturated solution at 75 degree Celsius. If the solubility of potassium nitrate at 75 degree Celsius is 155g and 20 degree Celsius is 31g, find the weight of potassium nitrate solution at 75 degree Celsius...
September 18, 2016 by Sagnik

Chem 1A
A 15.00 g sample of an ionic compound NaA, where A- is the anion of a weak acid, was dissolved in enough water to make 100.0 mL of solution and was then titrated with 0.100 M HCl. After 700.0 mL of HCl was added, the pH was 5.00. The experimenter found that 1.40 L of 0.100 M ...
March 15, 2012 by Ashley

chemistry
1. A student wanted to measure the amounts of (Ca2+) in the human blood. She got 1.00ml which she treated with Na2C2O4 solution. The resulting Ca2C2O4 precipitate was filtered and dissolved in dilute H2SO4 to release C2O42- into solution and allow it to be oxidized. The ...
August 5, 2011 by victor2

medicine
What is final concentration of a mixed solution combining 50ml of 20% solution, 150 ml of a 15% solution and 200 ml of a 35% solution?
July 20, 2010 by Lisa

Titration/Acid-base chem
a .4000 M solution of nitric acid is used to titrate 50.00 mL of .237 M barium hydroxide (Assume that volumes are additive). a) Write a balanced net ionic equation for the reaction that takes place during titration. b) what are the species present at the equivalence point? c) ...
May 6, 2007 by Keith

chemistry
1) Starting with 75.00 g of 1-propanol and 75.00 g of PCl 3. Calculate the theoretical yield of 1-chloropropane. 3CH3CH2CH2OH + PCl 3 --> 3CH3CH2CH2Cl + H3PO3 Answer in terms of grams. the answer that i got is 98.12, is this right and how many sig figs should it be? 2) What...
October 1, 2011 by anonymous

CHEM PROB MR BOB
I figured all the parts of the problem except for the last one. Can you tell me what to do? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50....
October 10, 2012 by Kelli

Chemistry
If 2moles of electrons are required to oxidize 1 mole of unknown, what is the molarity of the unknown solution Normality: 0.638 In this experiment: MnO4- is reduced to Mn2+
April 9, 2008 by unknown

Chemistry
How many milliliters of 5M H2SO4 are required to make a 1500ml of a .002M H2SO4 solution. I used the formula M*L=M * L so mL *5 = 1500 * .002 I got .6mL is this right?
September 18, 2011 by angel

chemistry
A 3.664 g sample of monoprotic acid was dissolved in water and required 20.27 mL of a 0.1578 M NaOH solution for neutralization . Calculate the molar mass of the acid
October 11, 2011 by TROUBLED

chemistry
How much Tris-Acetate-EDTA (TAE) stock buffer (3.25 M) is required to make 400 ml of solution that has a concentrations of 250 mM? How much water?
July 8, 2013 by Abass

Chemistry
What volume of .300M HCL is required (a) to titrate 50.0 ml of 0.600 M LiOH? (B) to titrate 50.0ml of .600M Ca(OH)2 (balanced equation and solution for both please!)
June 6, 2014 by Gage

Chemistry
Calculate the number of millilitres of NH3(aq) solution (d = 0.986 g/ mL) contain 2.5 % by weight NH3 which will be required to precipitate iron as Fe(OH)3 in a 0.8 g sample that contains 50 % Fe2O3.
July 26, 2014 by Susan

Chemistry
You prepare a solution by dissolving 58.5g of LiCL in 250ml of solution. If the solution is further diluted by having a total volume of 750ml, what is the concentration of the final solution?
July 3, 2013 by Junny

Chemistry
A solution of ethanol has a concentration of 4.613 mol/L at 20ºC. The density of the solution is 0.9667 g m/L.. Calculate the molality of the solution..please show the solution..thanks a lot
July 5, 2014 by Syam

science
Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion. A.Insufficient protein production B.Insufficient mitochondrial function. C.Impair urea elimination. D.Absence of oxygen transporters on the membrane...
January 23, 2016 by Tessy

Science
15. Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion. A.Insufficient protein production B.Insufficient mitochondrial function. C.Impair urea elimination. D.Absence of oxygen transporters on the ...
March 28, 2016 by AMGCSTRNBSN

Chemistry
What acid and what strong base would react in aqueous solution to produce the following salts in the formula equation? Write the balanced formula equation for each reaction. a) potassium perchlorate b) cesium nitrate c) calcium iodide I don't need just the answers, I'm ...
December 28, 2011 by Steven

Chemistry
In the reaction of a diene, can a s-trans conformation diene and a s-trans conformation dienophile react? I am having some problems finding the answer to this on the net or in my textbook. I know that a s-trans diene cannot react with a s-cis dienophile. But I am not sure what...
July 27, 2010 by Neee

chemistry
a chemist puts 50g of chemical a in beaker 1 and 25 g of chemical b in beaker 2 she places bot beaker into a larger container. as the chemicals evaporated the gas react into a white solid what mass of solid will form if chemicals react
April 12, 2015 by Anonymous

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
Determine the molarity of a sodium hydroxide solution? if 37.34 mL of it are required to neutralize 1.922 g of citric acid. balanced equation- 3NaOH(aq)+H3C6H5O7-->3H2O(l)+NaC6H5O7(aq… ***Plesae show steps.
March 7, 2012 by Cynthia

Chemistry
What is the molar mass of 0.500 g of unknown monoprotic acid used in titration, if 22.5 mL of 0.15 M NaOH solution was required to neutralize it? I do not need the answer, but instead an example of how to do a question just like it.
November 12, 2014 by Cheyenne

Chemistry
Complete ionic equation and net ionic equation for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2
March 26, 2014 by Ryan

Chemistry
Consider the following buffer equilibrium: HF (high concentration) + H2O <--> H3O+ (low concentration) + F- ( high concentration) Using Le Chatelier's Principle, explain what happens to the pH of the buffer solution when a small amount of NaOH is added. Wouldn't OH- ...
June 3, 2010 by sh

Chemistry
Balance the following chemical equation. __Fe(OH)2 (s) + __H3PO4 (aq) -> __Fe3(PO4)2 (s) + __ H2O (l) Would it be 3 Fe(OH)2 (s) + 2 H3PO4 (aq) -> 1 Fe3(PO4)2 (s) + 6 H2O (l) ?
January 30, 2010 by Anonymous

Math
A biologist has a 36% solution and a 14% solution of the same plant nutrient. How many cubic centimeters (cc) of each solution should be mixed to obtain a 25 cc of a 25% solution? I been looking at this for 2 hours please help
October 18, 2014 by Please end my suffering PLEASE HELP

physical chemistry
how do i calculate a ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given E(mV) at 25 C and pH7 as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data
February 17, 2010 by lucy

Chemistry
When you use UV Vis to determine the purity of the product- how does knowing the amount of salicylic acid help? Do you only use this when you know (after adding Fe3+) that the aspirin isn't pure? I know there is a very simple answer to this question...
June 9, 2012 by mish

Algabra A(1)
a solution of 67% soution is mixed with a solution o f57% to make 30 liters of a 59% solution. How many of each solution is used?
January 3, 2012 by Hannah

math
What is the solution to x+5+x+1+x=3(x+2)+1 1)x=0 2)x=3 3)no solution 4) infinite I got #3 no solution x+5+x+1+x=3(x+2)+1 x+5+x+1+x=3x+6+1 3x+6=3x+7 -3x -3x 6=7 so no solution Is this correct? Thanks for checking over my work.
January 11, 2014 by B8

chemistry
A solution of sodium thiosulfate, Na2S2O3, is 0.4206 M. 28.94 mL of this solution reacts with 5.89 mL of I2 solution. What is the molarity of the I2 solution?
October 14, 2014 by Ana

Science/Chem
1. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You take 30 mL of solution A and place it in a 100 mL volumetric flask and add water to the mark (this is solution B). Next you take 50 mL of solution B ...
September 28, 2008 by Kelsey

science/chem
You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You take 30 mL of solution A and place it in a 100 mL volumetric flask and add water to the mark (this is solution B). Next you take 50 mL of solution B and ...
September 28, 2008 by Kelsey

Chemistry
If the unknown tri protic acid has an equivalent weight of 46.79 g/equiv, its average molecular weight is ?g/mol and ?g would be required to make 100.00 mL of a 1.50 N solution.
April 2, 2008 by mia

chemistry
it is desired to prepare 250.0mL of a standard solution having a concentration of 0.1000M AgNo3. How many grams of a sample of AgNO3 of 98.8% purity are required for this purpose?
March 25, 2010 by T

chemistry
it is desired to prepare 250.0mL of a standard solution having a concentration of 0.1000M AgNo3. How many grams of a sample of AgNO3 of 98.8% purity are required for this purpose?
March 25, 2010 by T

chemistry
How many grams of KCl are required to make .75 L of 0.29 M solution? Round to one decimal place. i got .2907 is this correct im not sure about the decimal places thanks
October 4, 2010 by amber

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