1. Chemistry

    Normal saline solution is 0.91%w/v Calculate thge concentration of this solution in grams per litre????

    asked by Korina on December 13, 2010
  2. Chemistry

    Normal saline solution is 0.91%w/v. Calculate the concentration of this solution in milligrams per litre (mg/L)

    asked by Korina on December 14, 2010
  3. chemistry

    If a saline solution has a concentration of 0.25 g per mL, calculate the following. a) The concentration of this solution in %w/v. b) The concentration of this solution in grams per litre (g/L). c) The concentration of this solution in milligrams per mL

    asked by Hannah on November 7, 2012
  4. Chemistryyy

    a) A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution. If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid? b) A 0.150 M sodium chloride

    asked by Xaxus on September 12, 2014
  5. Chemistry

    A laboratory technician is required to prepare a quarter normal saline solution (0.22% w/v) from the stock normal saline solution. 1. What is the dilution factor required? I have 4-fold dilution - is that correct? 2. Ise this dilution factor to calculate

    asked by Korina on December 14, 2010
  6. Chemistry

    4 Questions on molarity that I really don't understand. I have the formulas, but they don't seem to fit in to the question right. Please take a look, thanks! 1. Calculate the weight, in grams, of HNO3 present in 1.0 litre of 0.10M of solution. 2. What is

    asked by Bethany on October 25, 2015
  7. Chemistry

    A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

    asked by Paul on January 31, 2011
  8. Chemistry

    A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

    asked by Paul on February 1, 2011
  9. Chemistry

    A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

    asked by Paul on January 31, 2011
  10. Chemistry

    A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

    asked by Paul on February 1, 2011
  11. Chemistry

    An 8 Molar (aqueous) solution contains H2O and HNO3. The solution has an S.G. of 1.24 at 25oC. HNO3 is a strong acid that completely dissociates in water. a) Calculate the mass of I Litre of solution. b) Calculate the mass concentration (g/L) of HNO3 in

    asked by Dodes on November 3, 2017
  12. math

    a pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12%saline solution.How much of 10% saline solution did the pharmist use in the mixture.dO NOT UNDERSTAND TO MUCH INFO.

    asked by Anonymous on May 6, 2010
  13. Chemistry- Drbob-help

    I have placed the answer I got please help. A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 870mL

    asked by Paul on February 9, 2011
  14. Chemistry

    A chemist has a supply of supersaturated CuSO4 solution that contains 230.0grams per litre of water. The chemist also has another supply of copper sulphate solution with a concentration of 150.0 grams per litre. What quantities of each copper sulphate

    asked by Matt on May 18, 2014
  15. chemistry

    A saline solution was prepared by dissolving 5.45 g sodium chloride to 96.77 g water. What is the concentration in weight percent for this saline solution?

    asked by James on May 18, 2011
  16. Algebra 1 college

    How much of a 12% saline solution should be mixed with a 4% saline solution to obtain 40 milliliters of a 6% saline solution?. Use a system of equations and elimination method to solve. can someone please see if I am on the right track. 12T + 4F=6x40 -4

    asked by Sophia on February 3, 2016
  17. Chemistry- Drbob-help#3

    I still need help with #3 I'm not sure how I got 1.14M. I have tried to do the problem over, but I not coming up with my original answer of 1.14M. Somehow I am missing a step. Please show work for the 1.14M Thanks Question#9 reads exactly as written. A

    asked by Paul on February 10, 2011
  18. Chemistry

    A is a solution of trioxonitrate (V) acid. HNO of unknown concentration B is standard solution of sodium hydroxide containing 4.00g per dm3 of solution 25cm3 portion solution B required an average of 24.00cm3 of solution A for neutralization. Using 2 drop

    asked by EMMANUEL on June 6, 2018
  19. chemistry 101

    How many grams of NaCl are dissolved in 250 grams of normal saline solution

    asked by mm on October 1, 2010
  20. Pre-Algebra Calculus

    NEED HELP PLEASE Mixture Problems 1.Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it was platinum? 2. 12 gal.

    asked by michele on January 23, 2016
  21. Chem

    Calculate the concentration in mol per litre of ammonium ions in a solution solution prepared by mixing 360.0mL of 0.250 mol per litre ammonium sulphate solution with 675.0mL of 1.20mol per litre ammonium nitrate solution. Assume solution volumes are

    asked by atriletz on January 27, 2007
  22. pharmacology

    How many grams of dextrose are in 50ml normal saline solution

    asked by carol on March 9, 2017
  23. Chemistry

    A is a solution of trioxonitrate (v)acid, HNO3 of unknown concentration.B is standard solution of sodium hydroxide containing 4.00g per dm3 of solution. 25 cm3 portion solution B required an average of 24.00cm3 of solution A for neutralization using 2drops

    asked by Ogbaji on June 6, 2018
  24. Chemistry

    How many grams of NaCl are contained in 500ml of normal saline solution which is 0.85%(w/v).

    asked by Adigun on November 2, 2013
  25. math

    you have an unlimited supply of 5% saline solution and 8% saline solution. How much of each type would you have to use to create 60 ounces of 7% saline solution? Write and solve a system of equations to model and solve this problem.

    asked by sahar on November 8, 2012
  26. Algebra

    A saline solution was made by mixing 11 ml of a 36% saline solution and 6 ml of a 53 % saline solution. How do I find the consentration of the new mixture?

    asked by Hannah on October 18, 2010
  27. chem engineering

    Mass balance on an intravenous injection (IV) bag A nurse sets up an IV drip for a patient consisting of normal saline; assume that this is an aqueous solution containing 150mM salt. The saline drip is supplemented with an antibiotic solution; assume that

    asked by Christina on October 28, 2009
  28. MATH

    A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture? A 60 mL B 45 mL C 40 mL D 25 mL CAN SOME GIVE AN EQUATION TO

    asked by Anonymous on May 7, 2010
  29. chemistry

    A is a solution of trioxonitrate(v) acid, HNO3, of unknown concentration. B is standard solution of sodium hydroxide containing 4.00g per dm3 of solution. 25cm3 portions solution B required an average of 24.00cm3 of solution A for neutralization, using

    asked by oward on May 24, 2016
  30. algebra

    Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much of each solution should erika mix together to get 12 litres of a 10% saline solution

    asked by sh on October 21, 2012
  31. algebra

    Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much of each solution should erika mix together to get 12 litres of a 10% saline solution

    asked by sh on October 21, 2012
  32. chemistry

    a chemist has a supply of cuso4 solution that contains 230 gram per litre of water. she wishes to make a copper sulphate solution that has a solution of 200.0 grams per litre gow ,uch of her copper sulphate solution should she use and how much water should

    asked by Cassie on May 18, 2014
  33. Algebra

    A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags of 4% and 3% saline solutions. How many liters of each of these solutions should be mixed together to yield 5 liters of the desired concentration? So far I've come up

    asked by JerryJ on October 11, 2010
  34. Chemistry

    What is the normal concentration of an HNO3 solution if 412 mL of the solution is titrated by 147 mL of 2.03-N NaOH? What is the normal concentration of a Ba(OH)2 solution, given that 86.3 mL of the solution is titrated by 113.0 mL of 0.00715-N H3PO4?

    asked by Lauren on December 17, 2017
  35. chemistry

    Bit confused about this question. especially a and b. Not really sure which values to use or how. Thanks! A solution is made by dissolving 1.71g of barium hydroxide, Ba(OH)2 (s), in distilled water and then adding more distilled water until the total

    asked by Anonymous on November 17, 2009
  36. Science

    Answer with solution, plz. 1. What is the concentration of the solution by volume when dissolved is used 30 grams & the water is 60 grams. 2. How much solvent in grams is present in a solution with a concentration by volume of 40% the solute of content is

    asked by Rachel on October 3, 2016
  37. Chemistry

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked by Kevin on January 9, 2011
  38. math

    scientist is mixing a chemical solution for an experiment solution contains 3/8 of chemical solution 1/6 ounce saline solution what is the unit rate of chemical to saline solution? 3/8 x 1/6 + 3/48 divided by 3 + 1/16 is this right

    asked by Joshiah on March 16, 2015
  39. chemistry

    Given a solution in moles per litre how would you convert to parts per million)ppm.) could you help,no other information given apart from solution contains a known concentation of aluminium mols/L. Convert mols to grams. That will be grams per 1000 mL.

    asked by walter on August 9, 2007
  40. chemistry

    A sulphuric acid density solution of 1.38 g/ml has a concentration of 56% w/w. Calculate the amount of moles of the existing acid in 1 litre of this solution.

    asked by kelly on July 12, 2018
  41. chemistry

    the normal concentration of sodium chloride in blood is 0.9%(w/v). therefore assuming a FW for NaCl of 58.4 g/mole, an isotonic 0.9% (w/v) saline solution would have how many mili-equivilents per liter (mEq/L) of Na+ ions?

    asked by jackie2 on April 26, 2011
  42. math

    A pharmacist mixes 14 ounces of 68% saline solution with 55% saline solution. If the final mixture is 62% saline, how many ounces of the 55% solution were used?

    asked by Anonymous on January 31, 2013
  43. Chemistry

    Calculate the grams of solute required to make 2500mL of 90% saline solution?

    asked by Morgan on May 17, 2012
  44. Chemistry

    1.What mass of NaOH(s) must be added to 300 mL of HCl 0.25 M in order to completely neutralize this acid? 2.During a lab, you mix 2 solutions: a 100 ml solution containing 0.40 g of NaOH and a 100 mL solution containing 0.73 g of HCl. What is the

    asked by Talulla on May 9, 2013
  45. Chemistry

    1. What is the percent by mass of a solution that contains 50 grams of solute dissolved in 200 grams of solution? What is the concentration of the same solution in parts per million? 2. What is the percent mass of a solution that contains 75 grams of salt

    asked by Leora on March 25, 2011
  46. ChemistryDrBob222

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked by Kevin on January 13, 2011
  47. chemistry

    A bottle of commercial hydrochloric acid solution So is labeled 37% composition by mass, density 1.19 kg/L. Calculate the concentration of solution So. 4.2 ml of So are diluted to 500ml solution called S. We titrate S with 200 ml of KOH solution of

    asked by angy on December 7, 2016
  48. Chemistry

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked by K on January 13, 2011
  49. Chemistry

    What is the concentration of salt in some optical saline solution if 4.0 miles of sodium chloride, NaCl, are dissolved in a total of 3 liters of solution? A) 98 M B) 81 M C) 2M D) 6M

    asked by Luis on June 7, 2018
  50. CHEMISTRY

    A is a solution of trioxonitate acid of an unknown concentration, B is a standard solution of sodium hydroxide containing 4.00g per dm3 of solution 25cm3 portion of solution B require an average of 24cm3 of solution A for complete neutralization. Write a

    asked by AROWOLO TEMITOPE on July 11, 2018
  51. CHEMISTRY

    A is a solution of trioxonitate acid of an unknown concentration, B is a standard solution of sodium hydroxide containing 4.00g per dm3 of solution 25cm3 portion of solution B require an average of 24cm3 of solution A for complete neutralization. Write a

    asked by Arowolo on July 11, 2018
  52. Chemistry

    Can someone link me videos and sites that can teach me the formula to solve these? Or try to help me understand how to solve these? 1.You have 200g of a radioisotope . If the half-life of this radioisotope is 20 days, how many grams will remain after 40

    asked by Samantha on May 16, 2018
  53. Chemistry

    A 1X Phosphate Buffered Saline solution was prepared by adding 1.44g of Na2HPO4 and 1.44g of H2PO4- to 800mL of water. Additional components were dissolved in the solution: 8g of NaCl, 0.2g of KCl and 0.24g KH2PO4. The resulting buffer solution had a pH of

    asked by Nicole on April 28, 2015
  54. Chemistry

    A hospital saline solution is analyzed to confirm its concentration. A 60.0 mL sample with a mass of 50.443 g is evaporated to dryness. (a) If the solid sodium chloride residue has a mass of 0.413 g, find the mass/mass percent concentration of the NaCl

    asked by Harry on March 26, 2014
  55. Math

    A saline solution is 20% salt. How many gallons of water must be added to dilute the mixture to 8 gals of a 15% saline solution? here is my method: using c1V1 = c2V2, (0.2)(V1) = (0.15)(8) V1 = 6 gals So, since 8 gals are required to dilute the saline

    asked by Meenaakshi on May 21, 2013
  56. Chemistry

    Calculate the grams of solute required to make the following solutions. a)2500g of saline solution (0.90% NaCl (m/m)) b)0.050kg of 4.0% (m/m) MgCl2

    asked by Kim on April 27, 2010
  57. Chemistry

    A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v) NaCl in water. How many grams of NaCl are contained in 250 mL of this solution? So wouldn't it just be .92%= .92 grams x 250ml.../100= 2.3 g NaCl?

    asked by Petey on September 7, 2016
  58. Chem

    15 cubic centimeter of (CH3COOH) was dissolved in water to make 500 cubic centimeter of solution. calculate the concentration of the solution in moles per litre (C=12 H=1 O=16 density of ethanoic acid =1.05g/cm^3)

    asked by The Okome on February 28, 2019
  59. chemistry

    What is the mass of NaCl required to make 840. mL of solution having an osmotic pressure of 7.70 atm at 36.6°C? This is the approximate concentration of the saline solution used to rinse contact lenses.

    asked by Robin on May 28, 2019
  60. chemistry

    Calculate the mass of silver nitrate needed to prepare a solution of concentration 0.01 moles per litre

    asked by Anonymous on April 4, 2011
  61. chemistry

    you pipetted a 10.00ml of solution with a concentration of 0.200g/l of pure iron into a 100.00 ml volumetric flask to make a stock solution a) calculate the concentration of the stock solution in mole/l of iron b) calculate the concentration of the stock

    asked by vevia on November 14, 2019
  62. chemistry

    A 10 ml of hydrochloric acid solution of concentration equal to 0.1 mol per litre is added 90 ml of pure water. What's the pH of the final solution?

    asked by wallace on September 16, 2018
  63. chemistry

    How many grams of NaOH should be dissolved in 1 litre of solution to prepare a solution with pH value12

    asked by sanya on June 2, 2010
  64. math

    A scientist is mixing a chemical solution for an experiment. The solution contains 3/8oz of chemical and 1/6 ounce saline solution. What is the rate of chemical to saline?

    asked by Eli on December 18, 2014
  65. Nuhu Bamali Poly zaria Nig

    Chemistry volumetric analysis. B is a solution of Na2CO3 containing 5g/dm3. A is a solution of oxalic acid of uknown concentration 25cm3 of 25.25,25.0 and 24.80 respectively (I) Calculate the average volume of acid used (II) The molar concentration of

    asked by usman mB on August 25, 2014
  66. math

    How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution

    asked by nate on September 11, 2014
  67. math

    How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution?

    asked by Alana on September 11, 2014
  68. college math

    How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution

    asked by Anonymous on September 11, 2014
  69. MATH

    How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution

    asked by marc on September 11, 2014
  70. Chemistry

    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 f2s04 7h20 in the sample

    asked by Ken Hung on January 11, 2014
  71. Chemistry Help.......

    Sulfuric Acid (H2SO4) is a strong acid, which dissociates when dissolved in water according to the following equation: H20SO4(aq)-> 2H+(aq) + SO4 2- (a) A 0.21g sample of sulfuric acid is dissolved completely in sufficiebt water to make 0.25litre of the

    asked by Adam on March 4, 2007
  72. ChemII

    A saline solution is 0.9% NaCl. What masses of NaCl and water would be required to prepare 50. L of this saline solution? Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.

    asked by Eric on January 9, 2011
  73. Math

    A scientist is mixing a chemical solution for an experiment. The solution contains 3/8 ounce of a chemical and 1/6 ounce saline solution. What is the unit rate of chemical to saline solution?

    asked by Ann on April 5, 2013
  74. chemistry

    A 25.00 mL solution of potassium nitrate (KNO3) was diluted to 125.0 mL, and 25.00 mL of this solution were then diluted to 1.000 103 mL. The concentration of the final solution is 0.00421 M. Calculate the concentration of the original solution.

    asked by Aiden on October 1, 2012
  75. chemistry

    A 25.00 mL solution of potassium nitrate (KNO3) was diluted to 125.0 mL, and 25.00 mL of this solution were then diluted to 1.000 103 mL. The concentration of the final solution is 0.00421 M. Calculate the concentration of the original solution.

    asked by Tim on October 1, 2012
  76. science

    1. Which of the following is TRUE regarding this situation: Solution A has a pH of 7.38, and Solution B has a pH of 7.42? a.Solution B is more acidic than Solution A b.The pH of Solution A falls within the homeostatic pH range for extracellular body

    asked by a on January 28, 2013
  77. Chemistry

    how do you calculate the mass of sodium ions in a 500ml bag of saline solution concentration 20.0 mmol l-1. A 100ml aliquot is analysed using silver nitrate, the precipitate weighs 0.2866g

    asked by Honey on June 4, 2012
  78. Chemistry

    25.0 mL of a NaCl solution (concentration unknown) was found to react with 20 drops of the chloride test solution from the PU Chloride Test Kit. Calculate the mass of NaCl (in grams) in this solution. Calculate the mass of NaCl required to prepare 0.250 L

    asked by kt on October 3, 2010
  79. chemistry

    A chemist added 3.15 grams of HNO3 to a solution of the same acid with concentration of 9 mol/L. dilutes the resulting solution up to the 100ml volume. The resulting solution will have what concentration?

    asked by wallace on August 11, 2018
  80. chemistry Damon helps me step by step

    1g of mixture na2c03 and k2c03 was mole made upto 250ml is aqueous solution. 25ml of this solution was neutralized. 20ml of hcl of unknown concentration. The neutralized solution required 16.24ml of 0.1N AGNo3 for precipitation, Calculate a) the % k2c03 is

    asked by Ken Hung on January 12, 2014
  81. chemistry

    a 30.0 ml solution of potassium nitrate was diluted to 125 ml and 25 ml of this solution were then diluted to 150 ml. the concentration of the final solution is 0.00307 M. Calculate the concentration of the original solution.

    asked by Carol on July 7, 2011
  82. chemistry

    saline solution mass is 53.0 at 4 degrees equal volume of water, same temp had a mass 51.5g what is the density of the saline solution?

    asked by kaela on May 14, 2015
  83. Science

    25 mL sample of KNO3 solution was diluted to 1.000x10^3 mL. The concentration of the final solution is .00383 M. Calculate the concentration of the original solution

    asked by Philip on September 27, 2011
  84. Chemistry

    A 25.00 mL sample of KNO3 solution was diluted to 1.00X103 mL. The concentration of the final solution is 0.00383 M. Calculate the concentration of the original solution?

    asked by Monica on June 13, 2010
  85. 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

    asked by Jason on May 24, 2015
  86. 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

    asked by Jason on May 24, 2015
  87. CHEMISTRY

    A 21g SAMPLE OF SULFURIC ACID IS DISSOLVED COMPLETELY IN SUFFICIENT WATER TO MAKE A .025 LITRE OF FINAL SOLUTION. CALCULATE THE HYDROGEN ION CONCENTRATION (IN mol1-1)IN THIS SOLUTION. GIVE YOUR ANSWER IN SCIENTIFIC NOTATION TO AN APPROPRIATE NUMBER OF SIG.

    asked by Desmond on March 8, 2007
  88. Chemistry revision

    all these questions I got wrong on my homework today ...I'm trying to find out why and what the correct answers were .. please help How many grams of solute are required to make a 504 mL solution of copper (I) nitrate with a concentration of 1.3317 M?

    asked by Tif on April 29, 2013
  89. chemistry

    What is the concentration of Ag+ remaining in solution? Calculate the following when 0.250 L of 0.249 M AgNO3 solution is mixed with 0.350 L of 0.300 M Na2CO3 solution. Ksp for Ag2CO3 is 8.46E-12. A) What mass of the precipitate forms? I found out the

    asked by hellp on March 31, 2012
  90. Chemistry

    How does one calculate the pH of a solution that is only 1.84% ionised? determine the concentration of the H+, which will be in a monoprotic acid, concentration * decimal percent. then determing pH in the normal way.

    asked by Fiona on May 20, 2007
  91. Chemistry

    You have 3.00 L of a 2.37 M solution of NaCl(aq) called solution A. You also have 2.00 L of a 2.00 M solution of AgNO3(aq) called solution B. You mix these solutions together, making solution C. Calculate the concentration (in M) of Na+ ions in solution C.

    asked by tina on May 6, 2011
  92. Chemistry

    What is the molarity of the resulting saline solution when you mix 1 mole HCl with 1 mole NaOH? I'll provide some basic information that I know, but could somebody tell me how to get the answer using the data? The balanced reaction is as follows:

    asked by Andrew on March 8, 2008
  93. chemistry

    I am in the process of calculating the hydrogen ion concentration in a .25litre solution of sulfuric acid,.21g of sulfuric acid was disolved in water to make the solution. I have calculated the molarity of the acid to be 2.14x10^-3 mol per litre. I also

    asked by ruby on March 5, 2007
  94. science

    A 0.21 g of Sulfuris acid is dissolved completely in sufficient water to make 0.25 litre of final solution. Calculate the hydrogen ion concentration (in mol 1 -1) in this solution. Give your answer in scientific notation to an appropriate number of

    asked by Gemma on March 6, 2007
  95. Chemistry

    Calculate the molar concentration for each of the following. a)The concentration of a brine solution containing 225 g for pure sodium chloride dissolved in 4.00 L of solution. b)The volume that must be added to 4.2 mol of magnesium chloride to make a 0.045

    asked by Lyn on November 22, 2015
  96. Chemistry

    3. 0.1825 g of Fe(NH4)2(SO4)2•6H2O is dissolved in 250.00 mL of solution; this is Solution A. 5.00 mL of Solution A is transferred to another flask, and it is diluted to a total of 100.0 mL to make another solution, which is Solution B. Next, 3.00 mL of

    asked by Anonymous on October 16, 2017
  97. Chemistry

    3. 0.1825 g of Fe(NH4)2(SO4)2•6H2O is dissolved in 250.00 mL of solution; this is Solution A. 5.00 mL of Solution A is transferred to another flask, and it is diluted to a total of 100.0 mL to make another solution, which is Solution B. Next, 3.00 mL of

    asked by Chad on October 16, 2017
  98. Chemistry

    0.1825 g of Fe(NH4)2(SO4)2•6H2O is dissolved in 250.00 mL of solution; this is Solution A. 5.00 mL of Solution A is transferred to another flask, and it is diluted to a total of 100.0 mL to make another solution, which is Solution B. Next, 3.00 mL of

    asked by Anonymous on October 16, 2017
  99. 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

    asked by Syam on July 5, 2014
  100. chemistry

    A) A solution was prepared by dissolving 1.113 g of MgCl2 into water and made up to 50.0 ml, calculate the molar concentration of the solution. B) A 250.0 ml of 0.50 M solution of Na3PO2 solution was prepared by diluting 2.5 M of stock solution. Calculate

    asked by henry39 on December 24, 2016

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