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September 28, 2016

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

Number of results: 30,434

Chem
How many milliliters of concentrated hydrochloric acid solution (36.0% HCl by mass, density = 1.18 g/mL) are required to produce 20.0 L of a solution that has a pH of 2.13?
February 28, 2011 by Anonymous

chemistry
If 34.7 mL of 0.210 M KOH is required to completely neutralize 30.0 mL of a CH3COOH solution, what is the molarity of the acetic acid solution?
May 3, 2012 by Heny

chemistry
What volume of LR(Lactated Ringer's) solution would be required to make 1.0L of a solution that was .050M in chloride ion?
June 12, 2012 by Bill

Chemistry
What volume of a 0.332 M hydrobromic acid solution is required to neutralize 29.6 mL of a 0.155 M calcium hydroxide solution ?
October 22, 2012 by Kaitlin

Chemistry
What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre)
November 7, 2012 by Helen

science
If you are titrating 25.00 mL of a 1.00mg/ml CaCO3 solution, how many mL of 0.010M EDTA solution will be required to reach the equivalence point
March 4, 2013 by Chris

Chemistry
A solution of 0.316 M KOH is used to neutralize 16.0 mL H3PO4 solution H3PO4(aq) + 3KOH(aq) K3PO4(aq) + 3H2O(l) If 30.3 mL KOH solution is required to reach the endpoint, what is the molarity of the H3PO4 solution? Molarity = ____________
November 19, 2015 by LuigiR

Chemistry
Choose the equations which correctly describe the dissolution of a compound into water. a) CaBr2(s)-> Ca2+(aq) + Br2(l) b) sodium bicarbonate(s)-> Na+(aq) + HCO3(aq) c) CH3OH(l)-> C4+(aq) + O2(aq) + 4 H+(aq) d) Ba(NO3)2(s)-> Ba2+(aq) + 2 NO3(aq) e) H2SO4(g)->...
January 15, 2011 by Erika

chemistry
the titration of 25.0 mL of a 0.040 M aqueous solution of maleic acid C2H2(COOH)2, with aqueous 0.10 M NaOH solution. For maleic acid, Ka1 = 0.013 and Ka2 = 8.5 x 10-7 How many milliliters of the 0.10 M NaOH solution are needed to completely react all the maleic acid in 25.0 ...
June 30, 2013 by sue

AP CHEM
Please help me with these AP Chemistry homework problems and show me the steps how to find the solutions: Liquid-Liquid Tirations: What is the concentration of the unkown solution for each of the following titrations? #5) 25.36 mL of 0.178 M NaOH is required to titrate an 25....
July 31, 2008 by shylo

Chemistry
03 + 3I- + H20 --> O2 + I3^- + 2OH- A 1.00-L bulb of air containing O3 produced by an electric spark was treated with 25mL of 2M KI, shaken well, and left closed for 30 minutes so that all O3 would react. The aqueous solution was then drained from the bulb, acidified with ...
October 24, 2011 by Ken

Chemistry;HELP
Volume Problems Answer the following questions. Scan and upload your questions and answers to your student section labeled Volume Volume Problems. Identify the following chemical equations by type. 1. If an electric discharge produces 500 cm3 of ozone (O3), how many cm3 of ...
August 21, 2013 by Unknown

Science
Al(OH)3(s) + HCl(aq) AlCl3(aq) + H2O(l) How many moles of HCl are required to react with 0.470 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given. mol HCl What mass of HCl is required? How many ...
November 16, 2011 by Megan

Chemistry
Hi everyone, I have been trying to figure out this titration equation all day and for some reason I am stumped. Here is the question in full: Potassium hydrogen phthalate, KHP, can be obtained in high purity and is used to determine the concentrations of solutions of strong ...
November 29, 2012 by jo

Chemistry
Aqueous sulfurous acid (H2SO3) was made by dissolving .200L of sulfur dioxide gas at 19 degrees C and 745 mmHg in water to yield 500mL of solution. the acid solution required 12mL of sodium hydroxide solution to reach the titration end point. what was the molarity of the ...
October 7, 2010 by Missy*

CHEMISTRY
Not for homework, just practice problems I'm having trouble with. Knowing that one mole of KHP, C8H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralize 30.0 mL of the 0.10 M NaOH solution? if 24.5 mL of the 0.10 M NaOH solution is required to reach ...
October 22, 2012 by Kimberly

chemistry
how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water? how do i do this problem... thanks:)
June 8, 2008 by Miley

Chemistry
What volume of 0.105 M HNO3, in milliliters, is required to react completely with 1.40 g of Ba(OH)2? 2 HNO3(aq) + Ba(OH)2(s) Ba(NO3)2(aq) + 2 H2O(l)
September 23, 2010 by Noelle

Chemistry
How many moles of hydrochloric acid are required to react with 2.57 moles of calcium hydroxide in a neutralization reaction?
March 24, 2014 by Anonymous

Chemistry
what mass of nitrogen gas is required to react completely with 2.79 of hydrogen gas to produce ammonia?
October 30, 2014 by Whitney

Chemistry
Could someone please help me with these two questions. I am having trouble. 1. What is the molarity of a solution if 48.0 mL of a 0.220 M solution is required to neutralize a 25.0-mL sample of the solution? 2. The mixing of which pair of reactants will result in a ...
September 19, 2010 by Sarie

Chem
how many grams of NH3 are required to completely react with 40.0 grams of NO.
February 24, 2011 by Rachel

chemistry
A 10.0 mL sample of 3.00 M KOH(aq) is transferred to a 250.0 ml volumetric flask and diluted to the mark. It was found that 38.5 ml of this diluted solution was needed to react the stoichimetric point in a titration of 10.0 mL of a phosphoric acid, H3PO4, solution. The ...
June 20, 2009 by dan

chemistry
In many residential water systems, the aqueous Fe3+ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe3+ to Fe2+ and then titrating with MnO4- in acidic solution. Fe2+(aq) + MnO4-(aq) ? Mn2+(...
November 14, 2015 by Dalton

chemistry
35.00mL of 0.250M KOH solution is required to completely neutralize 10.50mL of H2SO4 solution. what is the molarity of the sulfuric acid solution KOH(aq)+ H2SO4 -------> K2SO4(aq) +H2O(l
March 15, 2012 by brina

intro to chem
The molarity of an aqueous solution of potassium hydroxide, KOH, is determined by titration against a 0.197 M HI solution. If 28.4 mL of the base are required to neutralize 18.6 mL of HI, what is the molarity of the KOH solution?
August 13, 2013 by Meseret

Chemistry
How many milliliters of .200 M AgNO3 solution are required to precipitate most of the Cl- from the solution containing .855 grams of NaCl
September 27, 2010 by Aliana

Chemistry
How many milliliters of a 0.200M AgNO3 solution are required to preccipitate most of the Cl^- ions from a solution containing 0.855 g of NaCl?
September 27, 2010 by Aliana

chemistry
Calculate the volume of 2,180 ppm Pb(NO3)2 solution required to prepare 1.2550 L of a 0.0021 M Pb2+ solution.
February 15, 2012 by myles

chemistry
calculate the molarity of an acetic acid solution if 25.00mL of the solution required 35.25mL of 0.1200M NaOH for neutralization.
October 13, 2012 by Anonymous

Science
10.0 g of KCl and 18.5 g of CaCl2 were dissolved in 500 mL of water. How many mL of 1.57 M AgNO3 solution would be required to precipitate all Cl- from the solution?
October 19, 2012 by Jared

Chemistry
A 2.5% KCl solution is prepared by dissolving enough of the salt to give 181.4 g of solution. What mass (g) of water is required?
April 8, 2013 by Linzy

CHEM 101
What volume of a 0.726 M sodium hydroxide solution is required to neutralize 24.6 mL of a 0.298 M hydrobromic acid solution ?
October 8, 2013 by jackson

chemistry
How many milliliters of 0.50M NaOH solution are required to titrate 20.0mL of a 0.20M H2SO4 solution to an end point?
December 4, 2014 by Anonymous

chem 121
What volume of a 0.179 M barium hydroxide solution is required to neutralize 25.6 mL of a 0.377 M perchloric acid solution?
March 12, 2016 by Anonymous

Chemistry
Determine the volume, in milliliters, required to prepare each of the following diluted solutions. 40.0mL of a 2.75M KNO3 solution using a 1.00M KNO3 solution 45.0mL of a 2.90M H2SO4 solution using a 6.00M H2SO4 solution 0.700L of a 2.10M NH4Cl solution using a 5.00M NH4Cl ...
April 7, 2015 by Chan

Chemistry
I have a test on monday and I NEED to ace it in order to raise my grade > . < ldsfkjaslkf right now, acids and bases are killing me can somebody help me with these problems? A buffer solution is prepared by mixing the weak base ammonia (Kb=1.77x10^-5) with ammonium ...
May 15, 2010 by Kimberlee

chemistry
What volume of 0.123 M K3PO4 is required to react with 60 mL of 0.862 M MgCl2 according to the equation 2K3PO4+3MgCl2--> Mg3(PO4)2+6KCl Answer in units of mL.
March 10, 2010 by Steven

AP CHEMISTRY NEED HELP PLEASE
What Volume of nitrogen at STP would be required to react with 0.100 mol of hydrogen to produce ammonia? N2(g) +3H2 (g)(arrow) 2NH3(g)
December 8, 2011 by Mandy

AP Chemistry
What volume of 0.596M K3PO4 is required to react with 29 mL of 0.864 M MgCl2 according to the equation 2K3PO4 + 3MgCl2 -> Mg3(PO4)2 + 6KCl Answer in units of mL
October 21, 2012 by Tara

Chemistry
An experiment calls for 100ml of 0.1M copper(II) sulfate solution. Write a step-by-step procedure for a science teacher to make 100ml of 5M stock solution and the required diluted solution.
December 29, 2015 by Esther

Chemistry
You are using concentrated hydrochloric acid solution (12.0 M)to make 445.0 ml of a 5.85 M solution. Calculate the number of milliliters of concentrated HCl required to make the solution.
March 7, 2013 by Tanya

port charlotte high
2Nacl +2HCL = 2NaCl + H2 what mass of sodium is required to react with 8.45g of HCl
February 25, 2013 by john

Chemistry
A solution contains Cr+3 ion and Mg+2 ion. The addition of 1.00 L of 1.55 M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 49.8 g. Find the mass of Cr+3 in the original solution.
October 12, 2009 by Kyle

analytical chemistry
An EDTA solution is standardized against a solution of primary standard CaCO3 (0.5622 g dissolve in 1000 ml of solution) and titrating aliquots of it with the EDTA. If a 25.00 ml aliquot required 21.88 ml of the EDTA, what is the concentration of the EDTA?
February 3, 2013 by Anonymous

Chemistry
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

please help!!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

chemistry
What volume of water would be required to dilute a 10.0 mL 0.650 M solution of calcium sulfate to create 0.25 M solution, what would the volume of the new solution be?
February 10, 2011 by Elaine

College Chemistry
How many milliliters of a 0.200M AgNO3 solution are required to preccipitate most of the Cl^- ions from a solution containing 0.855 g of NaCl?
September 27, 2010 by KELLY

Chemistry
What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre) Is 175ml correct?
November 13, 2012 by Many

chemistry
how many ml of 0.655 M phosphoric acid solution is required to neutralize 15 ml of 1.284 M NaOH solution, write a balanced chemical equation
March 12, 2015 by Anonymous

Chemistry
How many moles of K3PO4 are required to react completely with 4.5 moles of CaCl2 2K3PO4 + 3CACl -> Ca3(PO4)2 + 6KCL
June 16, 2009 by James

chemistry
What volume of 2M HCl would be required to completly react with 0.314g of Zn? what mass of hydrogen gas would be produced?
January 16, 2010 by jamieson

chemistry
How many grams of oxygen gas are required to react completely with 14.6 g of solid sodium to form sodium oxide, Na2O(s)?
March 20, 2011 by franci

Chemistry
what mass of sodium chloride will be required to completely react with 4.00 x 10(24) units of AgNO3 and form AgCl and sodium nitrate?
April 28, 2012 by RoseBud

stoichiometry
How many liters of H2 are required to react completely with 5.7 liters of O2?
February 4, 2013 by shannon

basic chem
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

chem please help!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

Chemistry
If a solution containing 118.44 g of mercury(II) perchlorate is allowed to react completely with a solution containing 17.796 g of sodium sulfide, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
April 1, 2014 by Noelle

chem
If a solution containing 88.445 g of mercury(II) perchlorate is allowed to react completely with a solution containing 13.180 g of sodium sulfide, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
February 1, 2016 by qwaszx

chemistry
a solution of sulphuric acid is titrated (allquot 20.0ml) with a solution of sodium hydroxide (0.1234M) 26.73ml of the base being required to the end point with phenolphthalein. calculate the molarity of the sulphuric acid solution
November 19, 2011 by payton

Bio
If a persons liver makes 1000 mg/hour of urea during an average day, what would the concentration of urea be, in mg/mL, for a person making 1.0 L of urine during a particular day? What would it be for a person making 1.5 L of urine during a particular day?
April 21, 2015 by Anonymous

Chemistry
1. State specifically how you would make a conclusive test for an iron (III) salt. 2. Which test for iron (II) ions is conclusive. 3. Suppose you have a solution containing both an iron (II) salt and an iron (III) salt. How would you proceed to identify both Fe2+ and Fe3+ in ...
November 28, 2010 by Justin

Chemistry
1. State specifically how you would make a conclusive test for an iron (III) salt. 2. Which test for iron (II) ions is conclusive. 3. Suppose you have a solution containing both an iron (II) salt and an iron (III) salt. How would you proceed to identify both Fe2+ and Fe3+ in ...
November 28, 2010 by Justin

finding boiling points of solutions
What is the boiling point (in degrees Celsius ) of each of the solutions below? For water, Kb = 0.51 (Degrees C * kg)/mol The vapor pressure of water at 45.0C is 71.93 mm Hg. 1. A solution of 15.0g of urea, CH4N2O, in 164 g of water at 45.0 degrees C. For this one, I've gone ...
September 9, 2010 by Sar

difficult chemistry
100 Liters of air at STP is slowly bubbled through 200ml of 0.03N Ba(OH)2 solution. The Baco3 formed due to reaction is filtered and few drops of phenolphthalein is added to the solution rendering it pink. The solution required 25ml of 0.2N HCL solution when indicator turned ...
January 12, 2013 by Fai

chemistry
If 8 cm3 of 9.9 mol m-3 Fe(NO3)3 are mixed with 10 cm3 of 1.0 mol m-3 KSCN solution in a 20 cm3 volumetric flask and water is added to bring the total volume up to 20 cm3, what is the concentration of the Fe3+ ions (in mol m-3)?
January 9, 2013 by jessica

Chemistry PLEASE HELP!!!
'A buffer is prepared by mixing a 100.omL of a 0.100 M NH3 solution with a 0.200M solution of NH4CL solution and making the total volume up to 1.000L of water. What is the volume of NH4Cl solution required to achieve a buffer at ph=9.5? Ka of NH4=5.6x10^-10. The textbook says ...
December 11, 2012 by jemima

Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve for volume. Here is the...
March 26, 2014 by Jamie

Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve for volume. Here is the...
March 26, 2014 by Jamie

chemistry
What volume of nitrogen at 215 degress celcius and 715 mmHg would be required to react with .100 moles of hydrogen to produce ammonia? N2+3H2--> 2NH3
April 16, 2012 by Anonymous

chemistry
What volume of nitrogen at 215 degress celcius and 715 mmHg would be required to react with .100 moles of hydrogen to produce ammonia? N2+3H2--> 2NH3
April 16, 2012 by Anonymous

Chemistry
A student has 100.0 mL of an unknown solution of Vitamin C. She removes 1.00 mL of this solution, dilutes it to 50.0 mL, and titrates this second solution with an iodine solution solution that 8.5x1^-4 M. 6.60 mL of iodine solution is required to reach the endpoint. 1. How ...
March 12, 2012 by Cassandra

Chemistry
A student has 100.0 mL of an unknown solution of Vitamin C. She removes 1.00 mL of this solution, dilutes it to 50.0 mL, and titrates this second solution with an iodine solution solution that 8.5x1^-4 M. 6.60 mL of iodine solution is required to reach the endpoint. 1. How ...
March 12, 2012 by Cassandra

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. (:
February 22, 2009 by Agatha

Chemistry
A nitric acid solution is found to have a pH of 2.70. Determine [H3O+],[OH-], and the number of moles of HNO3 required to make 5.50L of the solution.
April 24, 2011 by Jessica

Chemistry
In a routine laboratory analysis, a solution of sodium chromate with a chromium concentration of 175.0 ppm is required. Calculate the molarity of this solution.
November 25, 2014 by Jessica

chemistry
25ml of a solution of na2c03 having a specific gravity of 1.25g ml required 32.9ml of a solution of hcl containing 109.5g of the acid per litre for complete neutralization. Calculate the volume of 0.84N Hes04 that will be completely neutralized by 125g of nac03 solution The ...
February 16, 2013 by Fai

Chemistry
Hello! I am having a little difficulty answering these two questions on my homework, I was wondering if anyone could please help me out! Thank you! 1) Consider the following balanced chemical equation for the neutralization reaction of calcium hydroxide with hydrochloric acid ...
November 30, 2013 by T.C.

chem really need help!
If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the reaction?
January 17, 2013 by Caitlin

chemisty
When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to react, calculate the...
November 17, 2013 by kim

Chemistry
"How many moles of oxygen are required to react completely with 5 mol C(8)H(18)?" 2C(8)H(18) + 25O(2) => 16CO(2) + 18 H(2)O In the question, how do I know if "oxygen" means the molecule O(2) or the element O?
September 21, 2010 by Gray

chemistry
Refer to the following unbalanced equation: C6H14 + O2 CO2 + H2O What mass of oxygen (O2) is required to react completely with 10.8 g of C6H14
November 7, 2011 by Anonymous

Chemistry
CH4(g) + 2O2(g) = CO2(g) + 2H20(g). What volume of O2 is required to react with 2.0 mol CH4 at 50 degrees Celsius and .500 atm?
February 18, 2013 by Maria

carboxylic acid with base
if a solution contain NaOH and K2CO3 and carboxylic acid like s-phenylalanine, the carboxylic acid will react K2Co3 to produce carboxylate salt why the carboxylic acid don't react with NaOH ? please help me thank you
June 27, 2009 by samaa

chemistry
Calculate the weight (in mg) of borax Na2B4O7.10H20 required to react with 25.0 mL if 0.100 M HCI No. moles HCl consumed = __________ moles No. moles borax required = __________ moles Molar mass of borax = __________ g mol-1 (Na2B4O7.10H2O) Weight borax required = __________ g...
April 22, 2013 by alex

Chemistry
If I was to react a borax solution with a sulphuric acid to neutralise it, what products will I get?
January 1, 2009 by Serre

Chemistry
How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF --> MgF^2 + H^2
April 6, 2011 by Lexa

Chemistry
How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF MgF2 + H2
June 9, 2011 by Ashley

Chemistry
How could 2 molecular compounds react to create a precipitate and an aqueous solution?
November 17, 2013 by Serena

Chemistry
How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca(OH)2?
June 20, 2016 by Kevin

Chemistry
What is the vapor pressure of the solvent in an aqueous solution at 25◦C of 0.29 m (molality) urea(CO(NH2)2), a nonelectrolyte? The vapor pressure of water at 25◦C is 23.76 Torr. Answer in units of Tor I want to use the mole fraction and multiply it by VP and add ...
February 2, 2011 by ND

Chemistry
A 51.46 mL sample of an ammonia solution is analyzed by titration with HCl. The reaction is given below. NH3(aq) + H+(aq) NH4+(aq) It took 38.57 mL of 0.0984 M HCl to titrate (react completely with) the ammonia. What is the concentration of the original ammonia solution?
October 28, 2010 by Anonymous

Networking LANs
You have been contracted to build a network for a multimedia development firm that currently uses a 10-Mbps Ethernet network. The company requires a high-bandwidth network for the multimedia team, which constantly views and manipulates large files across the network. The ...
September 29, 2008 by Beth

chemistry
calculate the amount of water in grams that must be added to 5.00 grams of urea (NH2)2 CO in the preparation of a 16.2 percent by mass, and 26.2 grams of MgCl2 in the preparation of a 1.5 percent by mass solution.
August 22, 2014 by vonedtera

science
how many ml distilled water is required to prepare 2% sucrose solution from 2% 2liter sucrose solution from 20% sucrose solution?
August 13, 2012 by sefali

Chem
A 0.2181 g sample of KHP required 17.29 mL of sodium hydroxide solution to reach the phenolphthalein end point. Calculate the molarity(M) of the NaOH solution.
October 9, 2012 by Donnie

chemistry
what volume of a 0.247 M perchloric acid solution is required to neutralize 23.8 mL of a 0.156 M calcium hydroxide solution? _titration problem of acids/bases
April 2, 2015 by Elise

chemistry
How many grams of 5.400 wt% aqueous HF are required to provide a 50% excess to react with 14.0 mL of 0.0236 M Th4+ by the following reaction? Th4+ + 4F - → ThF4 (s)
January 15, 2012 by john

chemistry
3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of NO2(g) are required to react with 1.00 mole of water to produce 3.00 moles of nitric acid?
November 5, 2015 by beverly

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