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July 2, 2015

Search: calculate the molarity ofthe NaOH solution: mass of KHP 2.484 g;

Number of results: 56,858

chemistry
the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution?
October 20, 2008 by Eric GReenblatt

science
Calculate the molarity of 500. mL of solution containing 21.1 g of potassium iodide
October 12, 2010 by kate

Chemistry
Calculate the molarity of a 5.4% sodium hydroxide solution whose density is 1.07 g/mL.
December 6, 2010 by anaymous

gp school
calculate the molarity of a solution when 5g of urea is dissolved in 600ml of water
August 20, 2011 by shiksha

chemistry
Calculate the molarity of a 295 mL solution contain 45 g of ethanol (C2H5OH)
November 27, 2011 by jane

Chemistry
Calculate the molarity of a 100. mL solution containing 22.3 g of sucrose (C12H22O11)
September 24, 2012 by Mariah

college chemistry
Calculate the molarity (M) of 156.2g of H2SO4 in 1.275L of solution.
June 16, 2015 by Alicia Estrada

Molarity
A 4.0−L sample of a 6.3M NaCl solution is diluted to 50L . What is the molarity of the diluted solution? How would I set this up?
April 19, 2015 by Chemistry

Chemistry
A 25.0mL sample of a 0.100M solution of acetic acid is titrated with a 0.125M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.
November 8, 2010 by Amanda

MOLARITY QUESTION
I am trying to answer a bunch of lab questions about a lab I did and am stuck on finding the morality of the diluted vinegar solution? Can anyone help me? (I hope I gave enough info) Here where the lab procedures that I already went through: Transfer 10mls (Vc)of vinegar to a ...
June 12, 2009 by Gweedo8

chemistry
a 3.54 grams solid sample of an unknown monoprotic acid was dissolved in distilled water to produce a 47.0 mL solution at 25 degrees. This solution was then titrated with 0.2 M NaOH. The equivalence point was reached when 35.72 mL of 0.2 M NaOH was delivered. A. find the ...
April 1, 2015 by jk

chemistry help
a 3.54 grams solid sample of an unknown monoprotic acid was dissolved in distilled water to produce a 47.0 mL solution at 25 degrees. This solution was then titrated with 0.2 M NaOH. The equivalence point was reached when 35.72 mL of 0.2 M NaOH was delivered. A. find the ...
April 1, 2015 by jk

Analytical chemistry
Below i wrote a few problems, i did them all but in the book i don't have results, so i don't know if i did them right or not. I would really appreciate if someone would go through the problems and tell me if i got the right results. If i made a mistake somewhere please let me...
August 3, 2013 by Gloria

chemistry
You add thiocynanate ions to a solution The molarity of silver ion is 0.1M initially. Calculate the max concentration of SCN- ion that exists in the solution before AgSCN beings to precipitate? ?
March 15, 2011 by emily

chemistry
Suppose 24.9 grams of copper (II) nitrate is dissolved in 200. milliliters of a 0.70 moles/liter aqueous solution of sodium chromate. Calculate the final molarity of nitrate anion in the solution.
January 20, 2012 by Deborah

Chemistry
Suppose 24.9 grams of copper (II) nitrate is dissolved in 200. milliliters of a 0.70 moles/liter aqueous solution of sodium chromate. Calculate the final molarity of nitrate anion in the solution.
January 20, 2012 by Deborah

Chemistry
Hello, I have a question that reads: Using the average molarity of your initial acetic acid solutions, the initial volumes, and the volume of NaOH added to reach the equivalence point, calculate the [C2H3O2-] concentration at the equivalence point. You should report 4 ...
May 9, 2010 by Jens

chemistry
A sample of solid monoprotic acid with molar mass equal to 169.7 g/mol was titrated with 0.1599M sodium hydroxide solution. Calculate the mass in grms fo acid to be used if the volume of NAOH to be used is 25ml. My calculation 0.1599 x 0.025L = 0.00399 0.00399 x 1000 = 3.9975 ...
August 4, 2012 by Fai

chemistry
A buffer solution is prepared by mixing 99.0 mL of 0.450 M HF and 55.0 mL of 1.15 M NaF. Determine the pH of the solution after the addition of 0.01 moles NaOH (assume there is no change in volume when the NaOH is added).
March 1, 2014 by Hayla

chemistry-molarity
Say I have 50 mL of bromocresol green indicator. This solution has 80mg/L. the molar mass is 698 g/mol. Then say I took 10 mL of that solution and dilute it with .4 M HCI. I want to find the concentration/molarity of bromocresol green. This is what I have attempted to do: 10ml...
August 2, 2010 by Anonymous

chemistry
Draw the tritration curve for the neutralization of a 100ml sample of 1M solution of HCl with a .6M solution of Naoh point 1: 2 ml NaOH edded point 2: 40 ml NoOH ADDED POINT 3: EQUIVALENCE POINT 4: 80 ML NaOH added
April 3, 2011 by sam

chemistry
Calculate the pH of the following solutions. (A) 0.95 NaOH (B) 9.9x10^-10 M NaOH (C) 6.7 M NaOH
May 4, 2013 by wes

chemistry
What is the molarity of a solution containing 8 grams of solute in 500 mL of solution? Round to the nearest hundredth. Don't forget the unit! (gram formula mass of solute = 24 g)
September 30, 2011 by archie

chemistry
What is the molarity of a solution containing 8 grams of solute in 500 mL of solution? Round to the nearest hundredth. Don't forget the unit! (gram formula mass of solute = 24 g)
September 30, 2011 by archie

chemistry
X is a solution,of dibasic of H2X. G is a solution containing 1.00g of NaOH in 250cm3 of solution . 24.60cm3 of solution F required 25.00cm3 of solution G . From your result and information provided above. (I)concentration of G in mol/dm3 (ii) concentration of F in mol/dm3 (...
May 25, 2014 by john kelechi

chem 101
We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.590 grams. What is the molarity of the AgNO3 solution? Answer in units of M
October 18, 2013 by maria

chemistry 101
We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.590 grams. What is the molarity of the AgNO3 solution? Answer in units of M
October 18, 2013 by maria

chemistry
A solution contains 5.00% (by mass)NaCl. The density of the solution is 1.064 g/cm^3. What is the molarity of NaCl?
November 19, 2012 by evelyn

chemistry
Investigating changes in colligative properties involves the measurement of a solution’s concentration in molality instead of molarity because of which of the following? the mass of the solvent does not change, but its volume does change, as temperature changes. the volume of ...
March 28, 2011 by Annie

Chemistry- is this right?
Calculate the H+ of 0.1 M NaOH Calculate the pH of 0.1 M NaOH [H+]=10^ph [H+]=10^-13 [H+]=1*10^-13M Since pH+ pOH=14 pH= -log (0.1M) pH=1 so 14-1 pH= 13
April 29, 2015 by Clare

Chem
Please tell me if these are right! 1.How many milliliters of 0.215 M NaOH solution are needed to completely neutralize 2.50 ml of 0.825 M H2SO4 solution? I got 19.2 ml 2. A 10.0-ml sample of vinegar which is an aqueous solution of acetic acid HC2G3O2 requires 16.5 ml of 0.500M...
December 6, 2010 by Jessica

chemistry
If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols NaCl on 58.5 gg NaCl. Mols NaCl/Liter of ...
June 13, 2006 by brett

Chemistry [sumone help me please :(]
0.250g of phthalic acid is dissolved in 40.00cm^3 of 0.100 mol dm^-3 NaOH. It requires 11.80 cubic centimeters of 0.100 mol\dm^-3 HCL fo neutralisation( to phenolphthalein) The mole ratio in which phthalic acid reacts with sodium hydroxide ihn 1:2 (a) Calculate the moles of ...
September 21, 2011 by Petty

Chemistry
What effect on the molar mass of the unknown acid would each of the following have-that is-would it make the calculated molar mass high, low, or would it have no effect? 1. Adding 5 drops of phenolphthalein instead of 1 drop. 2. Using a standard NaOH solution that has been ...
April 3, 2013 by Sean

Chemistry(Please help, thank you!!)
Determine the concentration of a NaOH solution if 27.80mL of NaOH is required to neutralize 10.00mL of a 1.00 M H2SO4 solution. (Hint:Review monoprotic vs. diprotic acids.) would I do (27.80)(10)? Thank you for your help!!
October 25, 2011 by Hannah

Chemistry
Chemistry - Danielle , Wednesday, February 11, 2009 at 7:24pm The density of a 22.0% by mass ethylene glycol (C2H6O2) solution in water is 1.03 g/mL. Find the molarity of the solution. Answer in M
February 11, 2009 by Danielle

Chemistry
You have 100 mL of a 0.450 M sulfuric acid solution, but you now need to add NaOH to make the solution basic. How much NaOH ( in grams) will you need to add to make the solution have a pH of 13.0? The units are grams of NaOH.
March 29, 2015 by Tessa Lehan

Chemistry
If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this reaction? 2.) what is the ...
April 13, 2014 by Jennifer

College Chemistry
A 20.0 Ml sample of sulfuric acid is titrated with 25.0 ML of 1.0 M NaOH solution. What is the molarity of the sulfuric acid? H2SO4+ 2NaOH yields Na2SO4 + H2O
December 6, 2010 by Sa ndra

Chemistry
If a 11.0 mL sample of vinegar (aqueous acetic acid ) requires 19.0 mL of 0.500 M NaOH to reach the endpoint, what is the original molarity of the acetic acid solution?
October 29, 2012 by Erin

chemistry
Starting with a 2.0 M NaOH solution, determine how you would prepare 1 L of a 0.1 M NaOH solution.
June 27, 2011 by Will

Chemistry
Calculate the change in PH when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH when 6 ml of 0.1 M NaOH is added to the original buffer solution.
March 27, 2012 by Mima

Chemistry
Calculate the change in PH when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH when 6 ml of 0.1 M NaOH is added to the original buffer solution.
March 27, 2012 by Mima

chemistry
Calculate the pH in a 0.00500 solution of NaOH.
February 21, 2011 by JC

chemisty
calculate the molarity of a solution with .2 moles of sodim hydroxide dissolved in .5L of water
April 27, 2011 by Anonymous

general chemistry
Calculate the molarity of each of the following solutions.70.8g C2H60 in 2.51L of solution
March 7, 2013 by kelia

Chemistry 30
Calculate the molar heat of reaction for the NaOH(aq) using the data obtained from this experiment. (this is a neutralization question) H2so4 Volume= 30ml Concentration=1.0mol/l Initial temp. = 29.9 NAOH Volume= 50ml C = 1.0 mol/L Initial temp. = 29 Final temp of the two ...
June 2, 2010 by Marium

college chemistry - molarity question
My textbook doesn't show me how to do problems like the following, and I'm having a hard time finding similar problems online. Most of the molarity problems I'm finding involve mixing a substance with water, but these involve mixing moles of substances with moles of other ...
April 29, 2009 by lholmq

chem
a 50ml aliquot sample of vinegar is titrated with a 0.078 M NaOH sol'n. The phenolpthalein end point was reached after the addition of 35.6 ml. Equation: HC2H3O2 + NaOH _____> NaC2H3O2 + H20 Calculate the % by mass/vol. of acetic acid in the sample.
September 23, 2014 by jane

chemistry
If 26.223 mL of potassium permanganate solution is required to titrate 1.041 g of ferrous ammonium sulfate hexahydrate, { FeSO4(NH4)2So46H2O }, calculate the molarity of the KMno4 solution. and the equation the lab gave me was Mn04(-) + 8H(+) + 5Fe(+2) ----> Mn(2+) + 4H2O...
March 11, 2008 by chris

Chemistry
In an acid-base neutralization reaction 25 mL of 0.4 M NaOH reacts with 50.00 mL of H2SO4 solution. Calculate the concentration of the H2SO4 solution?
February 19, 2015 by John

chemistry
A 30.0 mL sample of phosphoric acid is titrated with 18.0 mL of 3.0 M NaOH solution. What is the molarity of the phosphoric acid?
December 7, 2011 by confused

chem-acid base titrations
If 20.0mL of .2019M HCI requires 39.63mL of a NaOH solution for complete neutralization, what is the concentration of the NaOH solution? how many significant figures are justified in the answer?
April 7, 2008 by natash

chemistry
2. A 350 mL buffer solution containing 0.15 M HF and 0.150 M NaF is reacted with sodium hydroxide. What mass of NaOH can this buffer neutralize before the pH rises above 4.0? If the same volume of buffer was 0.35 M in HF and 0.35 M in NaF then what mass of NaOH could be ...
December 1, 2010 by help

Chemistry
A sample of conc. nitric acid has a density of 1.41g/ml and contains 70% HNO3 by mass. What mass of HNO3 is present per L of solution? What is the molarity?
February 15, 2009 by Tree Frog

Chemisry
6M HCl + 1M NaOH => NaCl + H2O If I'm understanding this correctly, all of the NaOH is used up because the molarity is 1 where the HCl's is 6 this leaves excess HCl correct?
August 26, 2013 by Jenna

chemistry
What mass of solute is contained in 250 mL of 0.895 M NH4Cl? I think that this is a molarity question. Molarity = mass of solute/volume of solution in L. 1 mL = 0.001 L so 250 mL * 0.001 L = 0.25 L 0.895 M = X (mass of solute)/ 0.25 but since the answer is to be in grams, I ...
May 7, 2015 by Danny

please help analytical chemistry
50 ml of a .1103M solution of formic acid is titrated with a .2511M NaOH. a) What is the pH before and NaOH is added? b) How many mL of NaOH solution must be added to reach the equivalence pt? c) what is the pH at the equivalence pt of the titration? d) If the titration is ...
April 8, 2013 by Lana

chemistry
A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3mL . The density of water at 20.0...
May 24, 2015 by Jason

chemistry
A 2.500×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3mL . The density of water at 20.0...
May 24, 2015 by Jason

chm
Calculate the PH OF A SOLUTION prepared by mixing 15.0mL OF 0.50 M OF NaOH AND 30.0mL OF 0.50 M BENZOIC ACID SOLUTION?( Benzoicacid is monoprotic and its dissociation constant is 6.5*10^-5)
March 31, 2010 by ami

chemistry
50 ml of a .1103M solution of formic acid is titrated with a .2511M NaOH. a) What is the pH before and NaOH is added? b) How many mL of NaOH solution must be added to reach the equivalence pt? c) what is the pH at the equivalence pt of the titration? d) If the titration is ...
April 7, 2013 by Jessica

chemistry
1)100ml sample of solution that is 0.2m in both Naf and Hf has 4.0 ml of 1.0m hcl added to it. calculate the ph change of this soultion .ka =7.2*10^-4 2)40 ml of 0.32m benzoic acid if titrated with 60 ml of 0.2 m naoh. clacilate the ph of the resulting solution at the ...
March 4, 2012 by Anonymous

chemsitry
1)100ml sample of solution that is 0.2M in both Naf and Hf has 4.0 ml of 1.0M hcl added to it. calculate the ph change of this soultion .ka =7.2*10^-4 2)40 ml of 0.32M benzoic acid if titrated with 60 ml of 0.2 M naoh. clacilate the ph of the resulting solution at the ...
March 4, 2012 by Anonymous

Chemistry
To a mixture of NaCl and Na2CO3 with a mass of 1.300 g was added 55.00 mL of 0.243 M HCl (an excess of HCl). The mixture was warmed to expel all of the CO2 and then the unreacted HCl was titrated with 0.100 M NaOH. The titration required 7.40 mL of the NaOH solution. What was ...
December 1, 2014 by Gabe

Chem molarity
A beaker contains 100 grams of 1.20 M NaCl. If you transfer 50% of the solution to another beaker, what is the molarity of the solution remaining in the first beaker?
March 1, 2011 by Toni Jones

chemistry
0.2 Grams of HCL is dissolved in 0.8g of water. The density of the solution formed is 1.10g/ml. What is the molarity of the solution???? %HCl = [0.2/0.2+0.8)]x100 = 20% Density = 1.10 g/mL. The mass of 1,000 mL is 1.10 g/mL x 1,000 mL = 1100 grams. Mass HCl in the 1100 g is ...
February 5, 2007 by boo

chem
a solution of weak acid of molarity 0.05 mol/dm3 is titrated against 0.1mol/dm3 NaOH, the pka = 3.67 what volume of acid would u use in ur titration?
December 7, 2008 by Kimora

chemistry
1. Calculate the volume of carbon dioxide at 273 K and 1.01 * 10^5 Pa which would be produced when 1.25g of calcium carbonate reacts completely with HCL. and 2. When 41.18 cm^3 of a solution of silver ions with concentration of .2040 mol dm^-3 is added to a solution of XO4 -3 ...
May 19, 2008 by ANn

Chemistry
Use the Henderson-Hasselbalch equation to calculate the pH of each solution: a solution that contains 1.05% C2H5NH2 by mass and 1.10% C2H5NH2Br by mass
June 13, 2011 by HELP HELP

Chem
I am doing a lab concerning pH... Why is it necessary to allow a mixture of 25mL of a 0.1M HCl solution with 20mL of a 0.08M NaOH solution to cool to room temperature? (I don't know if the actualy concentrations matter) Does it affect the pH? Yes, temperature affects the pH ...
March 7, 2007 by Marisol

Chemistry
If I have to make a solution with sodium bicarbonate (baking soda) how do i find the molarity and how do i correctly make the solution??? i.e. how do i prepare a solution of sodium bicarbonate with a molarity of 0.01?
January 8, 2008 by Jake

Chemistry
the density at 20 degrees celcius of a .258m solution of glucose in water is 1.0173 g/ml, and the molar mass of glucose is 180.2 g/mol. What is the MOLARITY of the solution? i need an explanation on how to go about solving this...
October 20, 2008 by EGreenblatt

chemistry
A chemist needs a HCl solution with a molarity of less than 0.400 M for an experiment. To find out if a sample of HCl solution can be used in the lab, the chemist performs a titration to neutralize 59.2 mL of the HCl with 45 mL of 0.400 M NaOH. Based on the results, will the ...
January 31, 2014 by Matthew

chem
A solution is 42% NaCl by mass. If 314 mL of H2O was used to create the solution, calculate the , mass of salt that was us
February 24, 2014 by chevy

chemistry
what is the molarity of an aqueous solution that is 6.75% glucose by mass? Assume a density of 1.03 g/ml
November 6, 2011 by swtnblk

chem
The molarity and the molality of a solution prepared by dissolving 2.00 g of ethanol C2H5OH with 100.0 g of water to give a final volume 102 mL are would i just add both the grams and divide by 102 for molarity? and molalty i would just add the mass?
August 8, 2008 by so

chemistry(Urgent Please help)
A student is asked to standardize a solution of barium hydroxide. He weighs out 0.945 g potassium hydrogen phthalate (KHC8H4O4, treat this as a monoprotic acid). It requires 33.9 mL of barium hydroxide to reach the endpoint. A. What is the molarity of the barium hydroxide ...
November 20, 2011 by Hannah

Chemistry
I need to calculate the amount of NaH2PO4 (in grams) and 1.00M NaOH solution (in ml) needed to make 250 ml of 0.20M H2PO4- at pH 8.00. My work is lengthy and involved but the answer I got was 7.00 ml of the NaOH and 0.0070 moles of the NaH2PO4 needed. Can you tell me if I am ...
May 12, 2015 by Kelsy

Chemistry
I need to calculate the amount of NaH2PO4 (in grams) and 1.00M NaOH solution (in ml) needed to make 250 ml of 0.20M H2PO4- at pH 8.00. My work is lengthy and involved but the answer I got was 7.00 ml of the NaOH and 0.0070 moles of the NaH2PO4 needed. Can you tell me if I am ...
May 12, 2015 by Kelsy

Chem
Hypothesis: A prediction of what you think the results of the project will be. Write your hypothesis before you begin the experiment and, if the experiment has more than one part, you will need a hypothesis for each section. Remember to create an ‘if-then’ statement. (Example...
November 25, 2012 by Jessica

Chem
A solution is made by dissolving 26.9 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes quite warm, but after it is allowed to return to room temperature, water is added to total 500 mL of solution. Calculate the pH of the final solution. ...
February 27, 2013 by Anonymous

chemistry
Reaction: CaCO3 + 2 HCl -> CaCl2 + CO2 + H2O Calculate the molarity of hydrochloric acid solution if an initial mass of 4.568g of CaCO3 was reacted with 25.0mL of the acid and 2.678g of CaCO3 remain after the reaction is complete.
November 30, 2012 by Jody

CHemistry Please Help..............LAB
Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water. Potassium iodate reacts ...
October 19, 2008 by Sara

Chemistry
A 5.00-mL sample of an H3 PO4 solution of unknown concentration is titrated with a 0.1003 M NaOH solution. A volume of 6.55 mL of the NaOH solution was required to reach the endpoint. What is the concentration of the unknown H3 PO4 solution?
March 11, 2013 by Amee

Molality
An aqueous solution contains 8.7% NaCl by mass. 1. Calculate the molality of the solution. 2. Calculate the mole fraction of the solution.
January 30, 2010 by Kyle

Chemistry
Calculate the pH of a solution that is 2.00 M HF, 1.00 M NaOH, and 0.704 M NaF. (Ka = 7.2 E -4)
December 17, 2008 by Schanee

Chemistry
Calculate the [H], [OH], pH and the pOH of this solution; 0.0025 M NaOH
June 19, 2013 by Shane

Chemistry
A 10.00 ml sample of vinegar, density 1.01g/ml, was diluted to 100.0ml volume. It was found that 25.0 ml of the diluted vinegar required 24.15ml of 0.0976 M NaOH to neutralize it. Calculate the strength of CH3COOH in terms of: a) molarity b) grams CH3COOH per litre c) % ...
November 18, 2014 by Candice

CHEMISTRY
25cm^3 of a solution of NaOH required 28cm^3 of 1.0 mol dm^-3 H2SO4 to neutralise it. a)Write an equation for the reaction. b)How many moles of H2SO4 were needed? c)How many moles of NaOH were thus neutralised? d)How many moles of NaOH are there in 25cm^3 of solution?
October 20, 2013 by Ava

Chemistry
Calculate the pH after 0.14 mole of NaOH is added to 1.07 L of a solution that is 0.54 M HF and 1.15 M NaF, and calculate the pH after 0.28 mole of HCl is added to 1.07 L of the same solution of HF and NaF. 0.14 mole of NaOH 0.28 mole of HCl
March 13, 2013 by Margaret

Chemistry
Calculate the molarity and normality of a solution containing 9.8 g of H2SO4 on 250 cm cube of the solutiom
June 29, 2012 by Shafket

Chemistry
Calculate the Molarity of the solution that contains 43.5 grams of K2SO4 in a total volume of 250ml.
May 7, 2014 by Felicia

Chem
Please help are these right? A 2.3 mole sample of nitrogen (N2), has a volume of 50.0 L and a pressure of 630 mmHg. What is the temperature of the gas? 41.5 C which I converted to Kelvin and got 231.5K Calculate the molarity (M) of the following solutions: A) 2.0 moles of ...
November 29, 2010 by Jada

CHEMISTRY
Consider an aqueous solution prepared from 250.0 mL of water and 1.27 g of potassium bromide. Express the amount of potassium bromide in this solution in terms of (a) mass percent (b) mole fraction (c) molarity assume the density of the solution is equal to that of water, 1.00...
December 13, 2010 by STACY

Chemistry
Suppose 26.0g of sodium bromide is dissolved in 150mL of a 0.60M aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the sodium bromide is dissolved in it.
July 26, 2014 by Angie

chemistry
Suppose 0.432g of zinc acetate is dissolved in 200.mL of a 16.0mM aqueous solution of ammonium sulfate. Calculate the final molarity of acetate anion in the solution. You can assume the volume of the solution doesn't change when the zinc acetate is dissolved in it.
January 18, 2012 by Deborah

Chemistry
Calculate the change in pH if 0.050 g of solid NaOH is added to 250 mL of a buffer solution that contains 0.80 M NaH2PO4 and 0.17M Na2HPO4. I found the pH of the buffer solution to be 6.54.
April 4, 2013 by Matt

Chemistry
The molarity of Sr2+ in a saturated solution of SrSO4 was determined to be 0.000500 M. Calculate the solubility product constant (Ksp) for SrSO4. SrSO4(s) = Sr^2+(aq) + SO4^2- (aq) Molar Mass (g/mol) SrSO4 183.68 This is what I know: Ksp = [Sr][SO4]
March 31, 2010 by Angel

chemistry
Lab: Determining Ka of Acetic Acid Purpose: The purpose of this experiment is to determine the molar concentration of a sample of acetic acid and to calculate its Ka. Materials: 25 mL pipet and bulb burette 2x150 mL beaker 125 mL Erlenmeyer flask acetic acid solution sodium ...
April 5, 2008 by Kasen

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