A strong acid, HBr, has been dissolved into a beaker of water. If the solution is known to be 0.000 001 M, what is the pH solution?

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  1. Chem

    The mass of a beaker is 5.333g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the

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  4. chemistry

    HBr is a molecular substance that is a strong acid in water. Write an equation for its ionization in water. Use minimal integer numbers to balance the reaction. Include physical states in your answer, e.g., start with HBr(l).

  5. Chem

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  6. Analytical Chemistry

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  7. Chemistry 12

    9. According to Arrhenius, which of the following groups contain: i)only acids ii)only bases a. NaOH, H2CO3, KCl b. MgCl2, H2SO4, HCl c. HNO3, HCl, H3PO4 d. Mg(OH)2, AgBr, HF e. KOH, NH4OH, Ba(OH)2 10. Enough water is added to 100 g of sodium hydroxide in

  8. Chemistry

    1. Hydrogen bromide(HBr) is a strong, highly corrosive acid and what is the pOH of a 0.0375M HBr solution? a)12.57 b)12.27 c)1.73 d)1.43 I can't fogure out what the answer should be as I don't know whether 0.0375M is the [H^+] or [OH^-] If 0.0375M is the

  9. chemistry

    A certain substance has a solubility of 12 grams in 100 grams of water at 20°C. This means that _____ the substance will begin to dissolve when 12 grams are present in solution when 12 grams of the substance are stirred into a beaker with 100 g of water,

  10. chemistry

    Part A 6.00×10−3 mol of HBr are dissolved in water to make 16.0L of solution. What is the concentration of hydroxide ions,[OH-], in this solution? Express your answer with the appropriate units.

  11. CHEMISTRY HELP!

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  12. chemistry help!!

    A beaker with 195 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.20 mL of a 0.260 it M HCl solution to the beaker. How much will the pH

  13. Chemistry Acid Question Ka

    Enough of a monoprotic acid is dissolved in water to produce a 0.0165 M solution. The pH of the resulting solution is 2.38. Calculate the Ka for the acid.

  14. Chemistry

    HOBr (aq) H+ (aq) + OBr- (aq), Ka = 2.3 x 10^-9 Hypobromous acid, HOBr, is a weak acid that dissociates in water, as represented by the equation. (a) Calculate the value of [H+] in a solution of HOBr that has a pH of 4.95. Ans: 1.1 * 10^-5 M (b) Write the

  15. Chemistry 12

    15. The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x 10-1 M 16. Aqueous solutions of strong acids and strong bases: a. are good electricity conductors b. make litmus paper become

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    You are worried that a solid substance has dissolved in a beaker of water in a lab. What would be a way to separate the substance from the water? Use a magnet to draw out the solid substance from the water. Pass the solution through a filter to let the

  17. Science

    G) The mass of a beaker is 40.94 g. After 5.00 mL of concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and hydrochloric acid is 46.92 g. From the data, calculate the density of hydrochloric acid solution.

  18. chemistry

    1. When performing this experiment, a student mistakenly used impure KHP to standardize the NaOH solution. If the impurity is neither acidic nor basic, will the percent by mass of acetic acid in the vinegar solution determined by the student be too high or

  19. o chem

    Impure acetanilide was dissolved in the required amount of hot water. The clear solution in a beaker was immediately placed in an ice-water bath, instead of being allowed to cool down slowly. What would be the result of cooling the solution in this manner?

  20. chemistry

    a solid sample of impure Ba(OH)2 is added to 400.0 mL of 0.5000 M of aqueous HBr, a strong acid. the remaining solution was acidic. it was then titrated to equivalence point with 120.0 mL of 0.5000 M of NaOH solution. what mass of pure Ba(OH)2 was present

  21. chemistry

    A beaker with 1.40×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.10mL of a 0.370M HCl solution to the beaker. How much will the pH

  22. CHEMISTRY II

    How would the calculated value of the molar mass of an unknown acid be affected (higher, lower, or no change) if the following occurs? (a) The pH meter was incorrectly calibrated to read lower than the actual pH. (b) During the titration, several drops of

  23. chemistry

    A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the following data were collected. Determine the

  24. chemistry

    Need help with my pH calculations? 1) 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric flask and made to 250.0 mL. The Ka for HCO3 – is 4.7 x

  25. soran university

    1. Which salt is LEAST soluble at 0 ºC? 2. How many grams of sodium nitrate, NaNO3, are soluble in 100 g of water at 10 ºC? 3. When 50 grams of potassium chloride, KCl, is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described

  26. chemistry

    Suppose that 0.483 g of an unknown monoprotic weak acid, HA, is dissolved in water. Titration of the solution with 0.250 M NaOH(aq) required 42.0 mL to reach the stoichiometric point. After the addition of 21.0 mL, the pH of the solution was found to be

  27. chemistry

    I collected questions from my book which I don't understand plz help me I am stuck plzz.!!!!!!!! Three different solutions containing the same solute at the same temperature are made to be saturated. Beaker 1 has 200.0 mL, beaker 2 has 500.0 mL and beaker

  28. Chemistry

    a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

  29. Chemistry. PLEASE HELP

    a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

  30. chemistry

    Sulfuric acid is a strong acid and dissociates in water as shown in Reaction 4. Equation label: (4) Help Please!!!! H2SO4(aq) = 2H+(aq) + SO42-(aq) What is the hydrogen ion concentration, in mol dm−3, when 1.50 g of sulfuric acid is dissolved in water to

  31. chemistry

    You have four beakers labeled A, B, C, and D. In beaker A, you place 100 grams of silver nitrate and enough water to make 50 mL of solution. In beaker D, you place 100 grams of KCl and enough water to make 100 mL of solution. You also pour 100 mL of water

  32. Chemistry

    To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution?

  33. science

    You are worried that a solid substance has dissolved in a beaker of water in a lab. What would be a way to separate the substance from the water? Use a magnet to draw out the solid substance from the water. Pass the solution through a filter to let the

  34. chemistry help

    sulfuric acid is a strong acid and dissociates in water as shown in reaction H2SO4(aq)=2H^+(aq)+SO4^2-(aq) what is the hydrogen ion concentration, in mol dm^-3,when 1.50g of sulfuric acid is dissolved in water to give 0.500dm^3 of solution ?show all of

  35. chemisrty

    A solid acid is dissolved in enough water to make 200 ml of a solution. 40.0ml of the solution is titrated to a phenolphthalein en point with an NaOH solution. The neutralized solution and the remainder of the acid solution are then mixed and the PH of the

  36. 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

  37. chem

    1.Pippete 20ml of 0.1M acetic acid and 20ml of 0.1M NaOH into a 100ml beaker (Remember that the final volume of this solution is the sum of the volumes of the acetic acid and NaOH solutions that have been mixed) 2. Pippete 20ml of 0.1 acetic acid into

  38. College Chemistry

    I need help with this question!! a sample of pure KHP weighing .8097g dissolved in water and titrated with 40.25 mL of NaOH solution. The same NaOH solution was used to titrate a solution of a weak diprotic acid H2X. A sample of 0.18694g of the weak acid

  39. Chemistry

    1 g of acid was mixed with 120 ml of distilled water and the solution was filtered into a clean dry beaker. A 25 ml aliquot of this solution was titrated with 0.1120 M NaOH. The pH of the acid was recorded to be 4.42. Calculate the initial concentration of

  40. Chemistry

    A sample of 0.314g of unknown monoprotic weak acid, HA was dissolved in 25.00 mL of water and titrated with 0.1M KOH. The acid required 27.20 mL of the base to reach equilibrium point. Find the pH of the solution if 40 mL KOH is added to the acid solution.

  41. chemistry

    Choices: True,False. Select all that are True. The pH at the equivalence point of a weak base with a strong acid is expected to be less than 7 because of the presentce of the conjugated acid in the water. One cannot prepare a buffer from a strong acid and

  42. chemistry

    Run # Volume NaOH used (mL) 1 4.1 2 4.3 3 2.8 Concentraion of NaOH: 0.113 M pH of acid: 2.84 the questions are: #moles of NaOH: ? initial acid concentration: ? Determine the Ka and pka of the weak acid: ? So here is what I did: Shaked for several minutes

  43. Chemistry

    A beaker with 150 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.60 mL of a 0.280 M HCl solution to the beaker. How much will the pH change?

  44. Chemistry

    TRUE OR FALSE? 1) A solution that is made out of 1.00mol/L ammonia and 0.50mol/L of ammonium chloride is a basic buffer. 2) The pH at the equivalence point of a weak base with a strong acid is expected to be less than 7 because the acid that is added is

  45. chemistry

    Titration was used to determine the molarity of acetic acid in vinegar. A primary standard solution of KHP was used to standardize the NaOH. 1. When performing this experiment, impure KHP was used to standardize the NaOH solution. If the impurity is

  46. Chemistry

    A beaker with 200 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.40 mL of a 0.400 \it M \rm HCl solution to the beaker. How much will the pH

  47. 9th grade science

    A strong acid, HBr, has been dissolved into a beaker of water. If the solution is known to be 0.000 001 M, what is the pH solution?

  48. chemistry

    A student is given 3 beakers: Beaker 1- 50.0 ml of a solution produced by dissolving 6.00 grams of a weak monoprotic acid ,HX, in enough water to produce 1 liter of solution. The empirical formula of HX is CH2O. The solution contains 3 drops of

  49. chemistry

    A mole of HBr, a strong acid, is made up to a liter of solution with pure water. At equilibrium... (a) [H+] = 1M (b) [H+] = 0M (c) pH = 0 (d) both a & c (e) we cannot say without exact pKa of hydrobromic acid.

  50. Chemistry

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  51. Chemistry

    Let’s assume you have 250 ml of a 1.3M KOH solution and you want to neutralize it with the acid HBr. It takes 350 ml of the HBr solution to do so. What must have been the molarity of the HBr solution? HBr(aq) + KOH(aq) => KBr(aq) + H2O(l) The

  52. college Chemistry

    Hydrobromic acid is a strong acid. If you have 1 L of a 7.5 M solution of Hydrbromic acid? A) What is the concentration of H_3O^+? B) What is the PH of this solution? C) If you dilute 1 liter of 7.5M in HBR solution to a volume of 2 L what is the new

  53. HELP MATH PLEASE

    You have two beakers of acid solution. One beaker contains a 17% acid solution, and the other beaker contains a 91% ACID SOLUTION. How many liters of the 17% acid solution must you mix with the 91% acid solution to make 2 liters of a 56% acid solution?

  54. Chemistry

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  55. Chemistry

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  56. Chemistry - Science (Dr. Bob222)

    At 25 degree C, a student adds 0.400 g of solid phosphoric acid to a beaker containing 500.0ml of water. After the solid is completely dissolved the student adds 20.0ml of a 0.995M sodium hydroxide. What is the pOH of the solution in the beaker?

  57. chemistry

    A 2.5 g sample of NaOH (Mw = 40.00) was dissolved in water to give a solution of final volume 250 cm3. (i) With reasons, state whether NaOH is a strong or a weak base. Give the conjugate acid of NaOH and decide whether this conjugate acid is acid, alkaline

  58. chemistry

    5.00×10−3mol of HBr are dissolved in water to make 15.0L of solution. What is the concentration of hydroxide ions, [OH−], in this solution?

  59. Math

    Professor Beaker has a 50-milliliter solution containing 60% acid. How many milliliters of pure water should he add to this solution to produce a solution containing 40% acid?

  60. chem

    what is the concentration of a solution with 5 grams of HBr dissolved in 2 liters of water?

  61. chemistry

    a 205 mg sample of diprotic acid is dissolved in enough water to make 250 ml of solution. The pH of this solution is 2.15. A saturated solution of calcium hyrdoxide (Ksp=1.3*10^-6) is prepared by adding excess calcium hydroxide to water and then removing

  62. Chemistry

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  63. Chemistry

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  64. Chemistry

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  66. Chemistry

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  67. Chem

    The mass of a beaker is 5.333g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the

  68. Chemistry

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  69. chemistry

    when 1.00 g of stearic acid ( a saturated fatty acid) is dissolved in water, then diluted to exctly 10.00 ml, the PH of the resulting solution is 2.73.the fornula weight of steric acid is 284.5. calculate ka and pka for this acid

  70. AP Chemistry

    A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 10-4) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak

  71. AP Chemistry

    A solution is prepared by titrating a 100.0 mL sample of 0.10 M HF (Ka = 7.2 × 10-4) with 0.10 M NaOH a. Does the solution contain a strong acid with a strong base, a strong acid with a weak base, a weak acid with a strong base, or a weak acid with a weak

  72. Chemistry

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  73. General Chemistry

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  74. chemistry

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  75. Chemistry

    Enough of a monoprotic acid is dissolved in water to produce a 0.0190 M solution. The pH of the resulting solution is 2.33. Calculate the Ka for the acid.

  76. chemistry

    enough of a monoprotic acid is dissolved in water to produce a 0.0111M solution. The pH of the resulting solution is 2.62. Calculate the Ka for the acid.

  77. Chemistry

    Enough of a monoprotic acid is dissolved in water to produce a 0.0169 M solution. The pH of the resulting solution is 2.68. Calculate the Ka for the acid.

  78. Science/CHEM

    Part 1 Chapt 4 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).

  79. chemistry

    A 20.00 ml stock sample of HBr is diluted to 50 mL. If 18.76 ml of 0.1345 M KOH was required to reach the equivalence point, what is the concentration of the stock HBr solution? Is my answer correct? Titration problems can be solved with the MV=MV

  80. Chemistry

    Enough of a monoprotic acid is dissolved in water to produce a 1.47 M solution. The pH of the resulting solution is 2.64. Calculate the Ka for the acid.

  81. chemistry

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  82. Chemistry

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  84. chem

    A beaker with 120mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 5.70mL of a 0.450M HCl solution to the beaker. How much will the pH change? The

  85. chem

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  86. Chemistry

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  87. urgent i need help within an hour!

    Ascorbic acid (vitamin C, C6H8O6) is a water-soluble vitamin. A solution containing 83.3 g of ascorbic acid dissolved in 210. g of water has a density of 1.23 g/mL at 55°C Calculate the molarity of ascorbic acid in this solution. i got 2.77 but its wrong

  88. college-chemistry

    2. A 0.1967 g sample of pure ascorbic acid is weighed out and dissolved in 50.0 mL of distilled water in an Erlenmeyer flask. One week later, when about one third of the water in the flask has evaporated, this solution is titrated against 0.01735 M KIO3

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    When titrating a weak base with a strong acid, what effect will washing the tip of the burette and sides of the beaker with distilled water have on the pKa and equivalence points?

  90. Chemistry

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  92. CHEM HELP ASAP

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  93. 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

  94. 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

  95. Chemistry

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  97. Chem Problem

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