a density of 1.0 M solution of NaCL

29,852 results, page 100
  1. Earth Science

    Near shore, larger sand and gravel particles are moved along the ocean bottom by ____. a. deposition b. turbulence c. spits d. density currents
  2. Chemistry

    Calculate the density of methane gas, CH4, in kilograms per cubic meter at 25 degrees C and 956 mmHg. I got .8252 g/L but am getting confused with the converting units.
  3. Astronomy

    Why do widths/strengths of spectral lines differ between supergiant stars and main sequence? Does the density of gases in the outer layers play a part?
  4. general science

    A test liquid has a density if 1.1g/ml. when you pour some of it into a cupof water, what will happen ( assumming that their natures are such that they don't mix and that there is no chemical reaction between the two subtances?
  5. physics

    How deep can a snorkel diver dive if the maximum gauge pressure on the thorax cannot exceed 10.9 kPa? Hint: density of seawater = 1.015g/cm3
  6. math/science

    "calculate the volume of 5g of a substance with a density of 6g/mL. SHOW ALL WORK" I just can't figure it out. D=M/V. But if you're making both sides equal? If someone could just explain. Because at first I thought it was 8.3, then 5/30, and I'm not asking
  7. Chemistry

    I posted a question earlier today to determine the vacancy density in copper. The formation of 1 mole in Cu is 104kJ. Temperature is 1305K. My result is -2.19*10^-22. This does not look right to me. Any ideas. Thanks.
  8. chemistry

    "a test liquid has a density of 1.1g/ml.. when u pour some of it into a cup of water what will happen asuming thar their nature are such that they don't mix and that their is no chemical reaction between the two substance? please help !!!
  9. Physics

    A solenoid 1metre long and radious 4cm has 1000 turns and is carrying 1Ampere current.find the magnetic flux density at the centre.
  10. Chemistry

    Consider the reaction: M + 2HCl ¨ MCl2 + H2 When 0.85 mol of the metal, M, reacted with an aqueous HCl solution (the HCl is in excess), the temperature of the solution rose because the reaction produced 6795 J of heat. What is ∆H in kJ per mol of
  11. chem

    An impure sample of (COOH)2 ·2 H2O that has a mass of 3.4 g was dissolved in water and titrated with standard NaOH solution. The titration required 42.7 mL of 0.156 molar NaOH solution. Calculate the percent (COOH)2 · 2 H2O in the sample. Answer in units
  12. Chemistry

    At 21.0 °C, a solution of 23.71 g of a nonvolatile, nonpolar compound in 30.64 g of ethylbromide, C2H5Br, had a vapor pressure of 319.7 torr. The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is
  13. Chemistry

    CaCl2(s) Ca2+(aq) + 2 Cl-(aq) H = -81.5 kJ A 14.0 g sample of CaCl2 is dissolved in 130. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a
  14. chemistry

    A sample of 10.00g of a solid unknown was dissolved in 25.00g of water. Assuming that pure water freezes at 0.0°C and the solution freezes at -5.58°C, what is the molal concentration of the solution? What is the molar mass of the solid? Show your
  15. CHEM- solution/freezing piont

    a solution of sulfur (2.560g) in naphthalene (100g) freezes 0.68K lower the freezing point of pure naphthalene (353.10K). for naphthalene, Kf= 6.8K kg mol. calculatem the molecular formula of the sulfur dissolved in the naphthalene?
  16. chemistry

    A solution is made by dissolving 46.5g of urea, (CH4N2O) a nonelectrolyte, in 316g of water. Calculate the vapour pressure of this solution at 40 oC. (ans in torr, note the vapour pressure of pure water at 40 oC is 55.3 torr.) I have been struggling with
  17. Qualitative analysis ( Chemistry)

    A solution x forms a white precipitate with dilute sulfur in acid and also with aqueous silver nitrate. What could solution x contain? A) Barium Chloride B) Barium nitrate C) Magnesium chloride D) Magnesium chlorine Could someone tell me how to get the
  18. Chemistry

    You have a stock 0.100 M solution of KMnO4 and a series of 100-mL volumetric flasks. What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00, 2.00, 5.00, and 10.0x10^-3M KMnO4 solutions? I tried using
  19. chemistry

    In the following experiment, a coffee-cup calorimeter containing 100mL of H2 is used. The initial temperature of the calorimeter is 23.0 C . If 3.40g CaCl2 of is added to the calorimeter, what will be the final temperature of the solution in the
  20. Chemistry

    When 25.3 mL of 0.100 M NaOH was reacted with 18.8 mL of H2SO4 of unknown molarity, the final solution was 0.029207 M in H2SO4. What is the molarity of the original H2SO4 solution? The equation for the reaction is: 2 NaOH + H2SO4 → Na2SO4 + 2 H2O
  21. algebra help please

    Mixture Problem... An auto tech needs a radiator to have a 40% antifreeze solution. The radiator currently is filled with 4 gallons of a 25% antifreeze solution. How much of the antifreeze mixture should be drained from the car if the mechanic replaces it
  22. Chemistry

    24.5 g of H2SO4 (98 g/mol) is added with h20 to make up to 800 ml of a solution. If 50 ml of the H2SO4 is added with 100 ml of H20, what will be the molarity of the diluted solution? MaVa=MbVb (0.3125)(50)=(Mb)(100) Mb= 0.16 M No huh?
  23. college general chem

    If 15.0 of is dissolved in enough water to form 270 of solution, what is the molarity of the solution? What is the oxidation state of an individual sulfur atom in ? What is the oxidation state of an individual nitrogen atom in ?
  24. math

    An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.] (a) Find a
  25. math

    An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.] (a) Find a
  26. calculus

    solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.
  27. chemistry

    2) Suppose you have 5.00g of powdered magnesium metal, 1.00L of 2.00M potassium nitrate solution, and 1.00L of a 2.00M silver nitrate solution. a. Which one of the solutions will react with the magnesium powder?
  28. CHEM-102

    Calculate the pH of a solution prepared by mixing 10.00mL of 0.50M NaOH and 20.00mL of 0.50M benzoic acid solution. (Benzoic acid is monoprotic; its ionization constant is 6.7x10^-5).
  29. Chemistry

    How does dissolving a solute affect the boiling point or freezing point of the solution? What about the solution's vapor pressure? Read about Raoult's Law, freezing point depression and boiling point elevation.
  30. math

    How much pure anti freeze must be added to 10 gal of 10% antifreeze solution to increase its concentration to 60 % anti freeze? If X represents the number of pure antifreeze solution, what is the correct statement of the problem?
  31. Chemistry

    How would you prepare 150.0 mL of a 0.200 M aqueous solution of potassium chloride from a 0.500 M aqueous solution of potassium chloride?
  32. chemistry

    is the following false the boiling point of a 0.5 aqueous solution of koh is higher than the boiling point of a 0.5m aqueous solution of kcl?
  33. chemistry

    What are the consequences of using only a very dilute solution of HCl or a very concentrated solution of HCl in attempting to return the pH? in attempting to return the pH to 7? What is a better alternative?
  34. Chem

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  35. Chem 151

    A solution of ammonia and water contains 3.50×10^25 water molecules and 5.00×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
  36. DrBob222-re: chem question

    Sorry, I did make an error when I posted the earlier question: It should have said: A solution has [OH-] = 2.0 x 10-^14 M. The [H+] in this solution is? I hope you can help. Thank you. Sorry about the earlier error.
  37. Chemistry

    What is the molarity of a solution that contains 2.17 moles of (SrCl2) in 2,660ml of solution? I know that the formula is molarity=moles/liters Liters=.2660
  38. chemistry

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  39. Chemistry Honors

    What volume of a 0.50 M MgSO4 solution will be needed to prepare 100.0 mL of a 0.20 M MgSO4 solution? A.250 mL B.100 mL C.0.250 mL D.40.0 mL
  40. Chemistry

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  41. Chemistry

    Question: how do you dilute something with a huge concentration to the same thing with a smaller concentration? For example: How do you dilute a 36 M solution of NaOH to a 6 M solution of NaOH?
  42. chemistry

    Given a 1.00 L solution that is 0.60 M HF and 1.00 M KF, calculate the pH after 0.080 mol NaOH is added, and calculate the pH after 0.24 mol HCl is added to the original solution.
  43. Algebra 2 Answer Check

    Solve each equation. 1. (|3x -4|)/(-5) = 6 A: no solution 2. (|2x -5|) = x + 3 A: x = 8 or x = 2/3 Solve each inequality. 3. |5x + 15| > 20 A: x > 1 and x < -7 4. [(|x - 2|)/ (4) greater than or equal to 5 A: -18 < x < 22 5. (-3) x (|5x -
  44. Physical Science

    5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) --> HCa + Cl(OH)2 (B) HCl + Ca(OH)2 --> H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 --> 2H2O + CaCl2 (D) 2HCl +
  45. Physics

    The bar in the figure has constant cross sectional area A. The top half of the bar is made of material "1" with mass density ρ1, and Young’s modulus E1. The bottom half of the bar is made of material "2" with density ρ2 and Young’s modulus
  46. Physics

    The bar in the figure has constant cross sectional area A. The top half of the bar is made of material "1" with mass density ρ1, and Young’s modulus E1. The bottom half of the bar is made of material "2" with density ρ2 and Young’s modulus
  47. urgent chem help ( dr bob plz)

    A particular household ammonia solution (d= 0.97g/mL) is 6.8% NH3 by mass. How many milliliters of this solution should be diluted with water to produce 650 mL of a solution with pH = 11.50? ============================ first i did was ph = 11.50 PH=
  48. chemistry

    I have the answers, I am just interested in the formulas so that I can solve the problems, thanks! 1. Find the boiling point of a solution composed of 110g of HgCl2 (a non-ionizing solute) in 175g of water. 2. Find the freezing point of a solution composed
  49. chemistry

    What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3)
  50. chemistry

    What is the result we get when NaOH and Na2CO3 solution are added to alcohol respectively in difference test tubes? (2)Discuss the reactions of aldehydes with fehling's solution.Give the relevant equation. (3)How would ethanoic acid react with ammonia(NH3)
  51. chemistry

    an unsaturated solution is made by completely dissolving 20.0 grams of NaNO3 in 100.0 grams of water at 20.0 degrees celcius. show a corrct numerical sat up for calculating the number of moles of nano3(gram-formula mass = 85.0 grams per mole) used to make
  52. Chemistry

    When 23.6 of calcium chloirde CaCl2 was dissolved in water in a calorimeter, the temperature rose from 25.0 degrees C to 21.56 degrees C. If the heat capacity of the solution and the calorimeter is 1071 J/ degrees C, what is the enthalpy change when 1 mol
  53. Chemistry

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  54. Chemistry lab

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  55. physics

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  56. chemistry

    A solution of sodium cyanide nacn has a ph of 12.10. How many grams of nacn are in 425ml of solution with the same ph? I do not understand how to calculate this question. Who helps me to solve it for me. Thank you. The right answer 209gm. A 0.446g sample
  57. med math

    the pharmacy sends you a vial of 1.5 grams of ampicllin. The instructions state to mix the powders with 9.8ml of sterile water to make a solution of 1.5grams/ 10ml. How much solution would you draw to administer 750mg of ampicillin? Attempt: (750mg X
  58. Chemistry (Ksp and Solubility)

    Kindly answer my query as early as possible.Please solve the complete question A solution contains 0.01M Ag+ and 0.001M Ba+2 . ksp of Ag2CrO4 = 2.4*10e-12 ksp of BaCrO4 = 1.17*10e-10 A solution of K2CrO4 is added to this solution. Which will precipitate
  59. physics

    if the relative density of a metal is 19.what will be the mass of 20cm3 of the metal when immersed in water
  60. chemistryt

    Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane?
  61. chemistry

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  62. chemistry 1

    If the mas of liquid nitrogen originally placed in the flask was 1.8 g, what is the density of the nitrogen gas?
  63. science

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  64. chemistry

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  65. chemistry

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  66. Science

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  67. physics

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  68. Chemistry

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  69. Physics

    The density of lead is 11.35g.cm.what will be the mass in kilograms of a 2dm sample of lead ?
  70. science

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  71. Physical science

    The density of lead is 11.35 g.cm .what will be the mass in kilograms of a 2dm sample of lead?
  72. physics

    Find the density in g/cm3 of a 120 cm3 piece of metal having a mass of 2 kg.
  73. physics

    Find the density in g/cm3 of a 120 cm3 piece of metal having a mass of 2 kg.
  74. Chemistry

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  75. Physics

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  76. chemistry

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  77. Chemistry

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  78. Chemistry

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  79. Science

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  80. bio

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  81. Chemistry

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  82. science

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  83. science

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  84. chemistry

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  85. PHYSICS

    SILICON DENSITY 1.05G/CM3 1MTR x 1MTR x4MM HEIGHT
  86. Chemistry

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  87. chem

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  88. Chemistry

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  89. Science

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  90. Chemistry

    how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3
  91. chemistry

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  92. Chemistry

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  93. Physics

    If the relative density of a metal is 19 what will be the mass of 20cm^3 of the metal when immersed in water.
  94. Chemistry

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  95. Physics

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  96. Chemistry

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  97. Chemistry

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  98. Physics

    A Canada goose floats with 26.1% of its volume below water. What is the average density of the goose
  99. Science

    If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.
  100. nursing

    500 grams of sugar occupies a volume of 0.315 L. what is the density of the sugar in g/mL?