a density of 1.0 M solution of NaCL

29,825 results, page 82
  1. science

    what is the density of an object with a mass of 60g and a volume of 2cm cubed
  2. science

    What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3
  3. Science

    Calculate the density of bromine if 586g of the substance occupies 188mL
  4. chemistry

    Skim milk has a density of 1.028 g/mL. How many grams are needed to get 0.786L?
  5. chemistry

    a gasoline tank has a mass of 60 kg and a density of .752 gcm^3 what is the volume
  6. AP Chemistry

    assuming a density of 1.0 g/mL, calculate the molarity and mole fraction of 3.0% h2o2
  7. Chemistry

    Given 1.7 g of hydrobromic acid (48%) calculate the number of mL. (MW HBr: 80.91 g/mol, density: 1.49 g/mL)
  8. chemistry

    The density of an elemental gas is 2.14 kg/m3 at STP. What is its approximate molecular weight?
  9. Chemistry

    What is the density of 3.40 Liters of Hydrochloric acid (HCl) that has a mass of 24.5 grams?
  10. Chemistry

    What is the density(g/L) of a gas mixture that contains 27.0% Fe and 73.0% He by volume at 714 mm Hg and 27.5 degrees Centigrade?
  11. science

    the unit for mesering density is? mass/volume examples gram/cm^3
  12. Chemistry

    Determine the mass of 18.7mL of rubbing alcohol with a density of 0.79 g/mL? - I got 14.77. I'm not sure I'm right. If someone could clarify I'd appreciate it! Thanks!
  13. science

    If a cocolate bar has a mass of 5 grams and a volume of 10cm3 what is its density
  14. Science

    How do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml)? Thank you very much for your help.
  15. science

    how do you find the percent error betwwen an experimental value and the accepted value? (of density) thanks
  16. Physics

    The density of an object is 1500kgm-3, the mass is 10000g find the volume
  17. physics

    what is the importance/significance of calculating the magnetic flux density of a solenoid?
  18. Chemistry

    What is the volume of a sample of helium that has a mass of 5.13x10^-3 and a density of 0.17847g/L
  19. physics

    What is the apparent weight of a lead brick 2.0 in x 2.0 in x 8.0 in if placed in oil with density p=0.93 g/cm^3 (Ppb=11.4 g/cm^3)(1 in. = 2.54 cm)
  20. Chem

    Whats the specific gravity if i have a density of 2.7 g/ml and the inital water level was 20.0 mL. I got 2.7 is this right?
  21. science

    How do I prepare 3% H2SO4 from concentrated sulphuric acid (98% with density 1.84g/ml)?
  22. physics

    A piece of metal has a density of 0.20g/cm^3.what is the volume in cm^3 of a 1g sample of a substance?
  23. chemistry

    if a sample of cough syrup has the mass of 50.0g and a density of 0.950 what is the volume
  24. Chem

    Is there an easy way to re-write PV=nRT so that it equates density with molar mass?
  25. science

    what is the density of a piece of wood that has a mass of 85.0 grams and a volume of 100.0 cm 3 ?
  26. Chemistry

    What is the density of a gasoline sample that has a volume of 13.3 mL abd a mass of 8.86 grams?
  27. Physical sci

    The Density of aluminum is 2.70 g/cm3. What volume does 2000 g occupy?
  28. physics

    Find the density of the earth if its mass is 6×10^3kg and radius is 6.4×10^3km
  29. chemistry

    a comparision of density value bx x-ray reveals that % of Al are 0.07% at 923 K and 0.009% at 757 K
  30. general chemistry

    the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^-23 grams what is the density
  31. Chemistry

    What are some of the distinctive properties of gases with respect to: density, volume, shape?
  32. science

    A liquid is usually _____ a gas. A denser than B less dense than C the same density as D lighter than
  33. chemistry

    Why would a unknown solid cube sink in cholorform that has a density of 1.489
  34. Chemistry

    Determine the density of chlorine gas at 22C and 1.00 atm pressure.
  35. chemistry

    if a coin with 3.0 cm diameter, 0.2 cm thickness weighs 10.377g, what are its volume and density?
  36. Biology

    Calculate the molality and molarity of 16% aqouos methanol by volume density 0.9g/ml
  37. 9th grade chemistry

    How do you determine the density of 22 ml of a blue liquid that has a mass of 51.1g
  38. physics

    a star has a mass of 2.0 10 30kg and a radius of 3.4*106m. what is its average density in kg/m3
  39. Chemistry

    A Stock solution has a total volume of 1.5l. It is diluted by removing 10 ml of the stock and adding 90 ml of water. the diluted solution has a concentration of the solute of 40mg/l a, what is the concentration of the solute in the stock solution? b, How
  40. Chemistry

    Select the statements that correctly describe buffers.? 1) The pH of a buffer solution does not change significantly when any amount of a strong acid is added. 2) The Ka of a buffer does not change when any amount of an acid is added to the buffer
  41. Math

    Which term best describes the solution of the situation represented by the system of inequalities? (Assume that x >= 0 and y >= 0.) 3x + 4y <= 8 2x + 4y <= 6 Answer choices given are: a. alternate optimal solutions b. one optimal solution c.
  42. Science, chem

    Develop a method to prepare 100 ml of 0.500mol/l aqueous CuSO4x5H2O solution. Include the water molecules that are hydrated to the crystals as given in the molecular formula, in your calculation of the molar mass. show all your calculations. Prepare the
  43. Chemistry

    What formula would you use to solve this problem? I'm stuck. You have prepared a solution by diluting 12.00mL of 0.790M copper(II) nitrate to a total volume of 50.00mL. What is the concentration of Cu2+ ions in the resulting solution? Report your answer to
  44. Chemistry

    H2C2O4.2H2O(s) is primary standard substance. 2.3688g of oxalic acid hydrate were completely neutralized by 42.56ml of NaOH solution. Calculate the molar concentration of the NaOH solution. Write the balanced equation for the reaction.
  45. organic chemistry

    a compound you have prepared is reported in the literature to have a pale yellow color. when the substance is dissolved in hot solvent to purify by crystallization, the resulting solution is yellow. explain if you should us decolorizing charcoal before
  46. Chem

    A bottle of win contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is .79 g/mL. Calculate the concentration of ethanol in wine as mass percent and molality. I calculated molality as 2.4 m/kg, but I'm stumped on the mass percent [although I'm
  47. chemistry

    a) The combustion of an organic compound in the presence of excess oxygen produced a gas , which makes clear lime water turbid. What element can be identified?  b) A sample of this compound is treated with hot molten sodium metal, the obtained mixture is
  48. chemistry

    a) The combustion of an organic compound in the presence of excess oxygen produced a gas , which makes clear lime water turbid. What element can be identified? b) A sample of this compound is treated with hot molten sodium metal, the obtained mixture is
  49. chemistry

    Please judge my answer: Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after 17 mL of the KOH solution has been added. Assume the Ka of acetic acid is 1.8 x 10-5. Answer:
  50. Chemistry AP

    At 20◦C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 35.5 torr at 20◦C. Calculate the mole fraction of methanol in this solution.
  51. Ciollege algebra

    Suppose that X liters of 38% acid solution are mixed with y liters of a 42% solution to obtain 100L of a 39% solution. One equation in a system for solving this problem is x+y=100. Which one of the following is the other equation? A. 42x+38y=0.39*100 B
  52. chemistry

    You have 100.7 g of saccharin, a sugar substitute, and you want to prepare a pH = 5.80 solution. What volume of solution can be prepared? For saccharin (HC7H4NSO3), pKa = 11.70 (pKa = −log Ka).
  53. Chemistry

    1.)Find the PH of a solution with 0.20M NH3 with 0.15M of NH4Cl. 2.)Find PH of a solution with a mixture of 200mL of 0.50M HCHO2 and of 100mL of .50M NaCHO2.
  54. Chemistry

    Solid NaI is slowly added to a solution that is .010M in Cu+ and .010M in Ag+... a.) which compound will precipitate first b.) calculate [Ag+] when CuI just begins to precipitate c.)what % of Ag+ remains in solution.
  55. chemistry

    A pH glass/calomel electrode was found to develop a potential of -0.0390 V when used with buffer of pH 5.52. With an unknown solution, the potential was -0.360 V. Calculate the pH of the unknown solution
  56. chemistry

    What volume of 9.54M sodium chloride solution must be added to the correct amount of water to produce 750. mL of a .327 M sodium chloride solution?
  57. re-chem please

    if i had a beaker with .0001M of Cu solution and copper solid (anode) and another beaker with 1M Cu solution and Cu solid (cathode), how would i calculate the half reactions of these two? would the two equations be: cu2+(aq) --> Cu(s) + 2e- and ?
  58. CHEMISTRY

    If 33.7 ml of 0.210 M KOH is required to completely neutralize 27.0 ml of a HC2H3O2 solution, what is the molarity of the acetic acid solution? HC2H3O2(aq)+ KOH(aq)-->KC2H3O2(aq)+H2O(l)
  59. Chemistry

    how would you do this question when i did it i did -log(1.0) but that is just 0 so what it the procedure to do this question Calculate the pH of a 1.0 mol/L aqueous solution of sodium benzoate. Note: Only the benzoate ion affects the pH of the solution.
  60. matrices

    Let A be a 5 by 4 matris and suppose that the system Ax=b has a solution. Explain why the solution is unique if and only if the rank of A is 4. I said that it is unique becaue the rank is equal to the number of columns. Do you have a better explaination.
  61. Chemistry

    Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved to make this solution.
  62. Chemistry

    Find the pH of a solution prepared by taking a 50.0 mL aliquot of a solution prepared by dissolving 12.25g of NaOH and 250.0 mL of water and diluting that aliquot to 1.00L?
  63. Analytical Chemistry

    I have a 0.00156 M solution of CuSO4*5H2O in water (from 0.0398 g of CuSO4*5H20 in 100 mL of water). How would I calculate the ppm of Cu of that solution from that information?
  64. Chemistry 1010

    How many grams of Ag2CO3 will precipitate when excess K2CO3 solution is added to 70.0 mL of 0.692 M AgNO3 solution? 2AgNO3(aq) + K2CO3(aq) --> Ag2CO3(s) + 2KNO3(aq)
  65. Speech

    After analyzing a problem, what is the next step in the problem-solving process? a. Develop creative solutions. b. Identify possible solutions. c. Select a solution. d. Implement a solution. I think it might be B
  66. Chemistry

    Frances wanted to prepare a 0.0285M standard solution of LiCl. She weighed out 27.5g of solid LiCl. She had plenty of water available. What volume of the solution was she able to prepare?
  67. Chemistry II

    A total of 30.6 g of potassium hydrogen phthalate is needed to completely neutralize a 500.0 mL solution of sodium hydroxide. What is the molarity of the sodium hydroxide solution?
  68. chemistry

    A solution containing 29.00 mg of an unknown protein per 22.0 mL solution was found to have an osmotic pressure of 3.10 torr at 18 ∘C. What is the molar mass of the protein? (3.10 torr* 22mL)=.682 I do not know what to do next
  69. Chemistry

    How many milliliters of a 3.85 M solution of Fe2+ are needed to titrate 250.0 mL of a 0.125 M Cro4 2- solution? H + CrO4 2- + Fe2+ yields to Fe3+ + Cr2O3 + H2) (not balanced)
  70. algebra

    solve by the elimination method 3r - 7s =-29 7r + 3s = 29 What is the solution of the system? Type an ordered pair. Type an interger or a fraction or type N if there is no solution or type 1 if there are infinitely many solutions.
  71. Chemistry

    You dissolve 1.05 grams of an unknown diprotic acid in 200.0 mL of H2O. This solution is just neutralized by 5.00 mL of a 1.00 M NaOH solution. What is the molar mass of the unknown acid?
  72. CHEMISTRY

    A solution contains 10.05 grams of an unknown covalent substance in 50.0 grams of water. The freezing point of this solution is (-) 3.16o C. What is the formula weight of the unknown compound?
  73. maths

    Hi Please can you help Find the particular solution of the differential equation from f(x)=(x^2-6x+23)^(3/2)for which y=2 when x = 1, and then give this particular solution in explicit form? Am I correct that the following is the explicit form (not
  74. chemistry

    Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution.
  75. CHEMISTRY

    You have 875 mL of an 0.53 M acetic acid solution. What volume (V) of 1.30 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.94? (The pKa of acetic acid is 4.76.)
  76. biochemistry

    You have 325 mL of an 0.11 M acetic acid solution. What volume (V) of 2.00 M NaOH solution must you add in order to prepare an acetate buffer of pH = 5.07? (The pKa of acetic acid is 4.76.)
  77. chemistry

    A certain acetic acid solution has pH = 2.14. Calculate the volume of 0.0900 M KOH required to reach the equivalence point in the titration of 35.0 mL of the acetic acid solution.
  78. math

    Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph. x + 4y = –16 3x + 2y = 12
  79. Math

    Find the exact solution, using common logarithms, and a two-decimal-place approximation of each solution. log(7x + 4) = 2 + log(2x − 3) Solve the equation. log(x^3) = (log x)^2
  80. Chemistry Lab

    If 3.5 mL of distilled water is added to 1.5mL of a 0.150 M solution of CoCl2, what is the concentration of the resulting solution? M1V1=M2V2 M1= 0.150 V1= 1.5mL M2= 3.5?
  81. CHEMISTRY !!! HELP !

    You have 875 mL of an 0.53 M acetic acid solution. What volume (V) of 1.30 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.94? (The pKa of acetic acid is 4.76.)
  82. science

    you need to make a 3.5 Molar solution of Ca(OH)2, however, you only want to make 50ml of this Ca(OH)2 solution. How many grams of Ca(OH)2 will you need to weigh out and add to 50ml of water? Mass=VolumeinLiters*Molarity*Molmass
  83. chemistry

    When 2.53 g of NaOH(s)(40.0g/mol) dissolves in 100.0 g of water, the temperature of the solution changes from 20 degrees C to 26.3 degrees C. Calculate qrx in KJ/mol specific heat of the solution is 4.18 J/(g*K)
  84. Chemistry

    Write an equation to represent the oxidation of I- to I2 in acidic solution, with ozone as the oxidizing agent. I know ozone will be reduced to H2O, but I am not sure how to figure out the acidic solution. Thank you!
  85. 9th grade

    How many grams of water must be added to 2 grams of a 65% iodine solution in order to produce a 42% iodine solution? Round your answer to the nearest tenth
  86. Chemistry

    Ammonia, NH3 is freely soluble in water, and has the value Kb=1.8x10^-5. If the pH of an ammonia solution is 11.4272, then what original concentration of NH3 (molarity) was used to make up the solution?
  87. algebra 2

    1. Find the exact solutions of x^2 - (y-12)^2 = 144 and y = -x^2 Is the answer no solution? 2. Solve the system: y^2 - 4x^2 = 4 and y = 2x Solving this myself I got no solution, but someone who helped me with this question got the answer x= + i sqrt 2, -i
  88. chemistry

    Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution.
  89. Chemistry - check answers

    1) Which of the following sets is arranged according to increasing base strength? A) F-, OH-, Cl- B) F-, Cl-, OH- C) OH-, F-, Cl- D) OH-, Cl-, F- E) Cl-, F-, OH- (my answer) 2) What is the pH of a solution formed by adding 4.3 x 10^-5 moles of KOH in 1 L
  90. algebra

    A taxi service offers a ride with an $5 surcharge and charges $0.50 per mile. How many miles can a customer travel and spend at most $30? What linear inequality with variable x represents this situation? What is the solution to that inequality? Enter the
  91. Chemistry

    A volume of 40.0 of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the solution if 20.2 of 1.50M H2SO4 was needed? The equation is 2KOH(aq)+H2SO4(aq)--->K2SO4(aq)+2H2O(l)
  92. chemistry

    I. 1) Calculate the pH of the following solution: 0.1 M HF + 0.2 M NaCN Given: pKa for: HF/F- = 3.2 HCN/CN-= 9.4 2) Calculate the pH of the solution that results upon mixing 20.0 mL of 0.2000 M HCI with 25.0 mL of: a) distilled water c) 0.13 MNaOH e) 0.23
  93. Chemistry

    a 30 mL sample of vinegar is titrated with .1098 M NaOH. it takes 43.28 mL naOH solution to reach the endpoint. Determine the acetic acid concentration in the vinegar solution?
  94. Chemistry

    which property of a distilled water solution will not be affected by adding 50 mL of CH3OH to 100.mL of the water solution at 25? conductivity mass freezing point boiling point please help
  95. Chemistry

    Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.
  96. chemistry(rusting)

    i know that metal placed in more acidic solution will produce rust faster.but why metal placed near the sea shore will easily have rust?the wind with moisture which contains salt solution,right?
  97. Chemistry

    Calculate the mass of ammonia salt that would remain if the solution were evaporated to dryness. When sulfuric acid reacts with ammonia solution an ammonium salt is produced.
  98. chem

    How many grams of NH4Cl must be added to 0.560 L of 1.90 M NH3 solution to yield a buffer solution with a pH of 8.50? Assume no volume change. Kb for NH3 = 1.8 10-5. i am confused as how to find the grams?
  99. science

    A student prepared a .10M solution of acidic acid. Acidic acid has a Ka of 1.75 x 10-3. What are the hydronium ion concentration and the PH of the solution? I think the PH is 1.76 because I hit -log(1.75 x 10-3) on my calculator and that's what I got
  100. Chemistry

    An aqueous solution that 2.10 M in AgNO3 is slowly added from a buret to an aqueous solution that is 1.20×10^−2 M in Cl- and 0.260 M in I- . When the second ion begins to precipitate, what is the remaining concentration of the first ion?