CHEMISTRY (WEBWORK)

59,440 results, page 14

  1. chemistry

    how can the purity of water be established?
  2. Chemistry

    What is the solubility of calcium cholride
  3. Chemistry

    What is the vapor pressure of ethanol at 13 C?
  4. chemistry help

    What ratio does molarity express?
  5. chemistry

    What are two colligative properties?
  6. Chemistry

    What does a covalent bond consist of? Thanks!
  7. Chemistry

    What is the molecular formula of water?
  8. Chemistry

    Molecular mass of sugar
  9. chemistry

    i just need help w a question can anybody help
  10. chemistry

    why isnt there a standard SI unit for volume?
  11. chemistry

    Please convert 8240 lb to kg.
  12. CHEMISTRY

    NAME OF COMPOUND- CH3CHCL2
  13. Chemistry

    What is the chemical formula for quartz?
  14. chemistry

    Please, convert 5005 mL to L
  15. chemistry

    Please convert 5005 mL to L. Thank you.
  16. Chemistry II

    how do you change kpa to atm?
  17. Chemistry

    What is the correct name for NO2-?
  18. Chemistry

    What is the proper name for Co2o3?
  19. Chemistry

    calculate the pH of 0.10 M HCI solution?
  20. chemistry

    what is the electron configuration for carbon
  21. chemistry

    How many valence electrons are there in BrF3?
  22. chemistry

    describe global warming
  23. chemistry

    What is the general formula for a hydrate?
  24. Chemistry

    Is SO3 always a gas?
  25. chemistry

    what is 200grams-1000cm3? please help me!
  26. chemistry

    What is the hamiltonian for a Lithium atom?
  27. Chemistry

    what is the lewis structure for CH3?
  28. Chemistry

    What is the electron configuration of Cu2+?
  29. chemistry

    Alternative of sodium arsenate
  30. chemistry

    What is the Leis Structure for PbCl3?
  31. chemistry

    how many grams are in 5.2*10^15 atoms of nickel
  32. Chemistry

    what is the density that has a mass of 77.0 g and a volume of 36 mL?
  33. Chemistry

    what is the density that has a mass of 77.0 g and a volume of 36 mL?
  34. chemistry

    2420 multi ply by 24
  35. chemistry

    what's the product of iron and sulphur
  36. chemistry

    How many moles are there in 4.76e24 atoms Al?
  37. Chemistry

    If you have 0.2 M of NaC7H4ClO2 with a pH of 8.65, what is the pH of 0.2 M of HC7H4ClO2?
  38. chemistry

    how do I convert 25.0 miles to kilometers
  39. Chemistry

    Which of the following is a reactive gas? 1. Cl 2. Na 3. Au 4. Ra 5. Rn Is it 1. Cl?
  40. Chemistry

    Which of the following is an unreactive metal? 1. Na 2. Au 3. Rn 4. Ra 5. Cl Is it 2. Au?
  41. chemistry

    how many moles in 100g of each.. its for phosphorous
  42. chemistry

    what ion has 12 protons and 10 electrons?
  43. chemistry

    What are the physical properties of sucrose.
  44. chemistry

    what are the physical properties of sucrose?
  45. chemistry

    How many moles are in 52.3 grams of CaSO4?
  46. CHEMISTRY

    What is reaction between HI+HNO3
  47. Chemistry

    What is the repeating unit of nylon 6-6?
  48. Chemistry

    What is the boiling point of heaxane?
  49. Chemistry

    (x)/(.00125-x)(.00000025-x)=Kc How do I solve for x or Kc?
  50. chemistry

    how to convert ethane to propanone? Thank you!!!!
  51. Chemistry

    What counts as a conversion factor ?
  52. chemistry

    why NaOH must be standardized?
  53. chemistry

    what is the ph of a solution formed by dissoving
  54. Chemistry

    Determine the pH of 0.18M NH4Cl.
  55. Chemistry

    Determine the pH of 0.18M NH4Cl.
  56. Chemistry

    Determine the pH of 0.18M NH4Cl.
  57. Chemistry

    Determine the pH of 0.18M NH4Cl.
  58. Chemistry

    Determine the pH of 0.18M NH4Cl.
  59. Chemistry

    Calculate the pH of .100M of HClO2.
  60. Chemistry

    Find the Ph of solutions with the concentrations 1.15 x 10^-6M
  61. chemistry

    what is the pH of .28 M HNO3 (aq) at 25 degree celsius? (Kw = 1.0 x 10 ^-14)
  62. chemistry

    which reactant has been oxidized?
  63. Chemistry

    What is the colour of: 1. Cu+ 2. Cu2+ 3. Cu3+?
  64. College Chemistry

    I don't have an answer.
  65. Chemistry

    What is the percent by mass of Ca3N2?
  66. chemistry

    nitrogen+hydrogen=ammonia
  67. Chemistry

    What is the pH of a 0.200M solution for HBrO? Ka = 2.8 x 10^-9
  68. Chemistry

    What is the pH of a 0.200M solution for HBrO? Ka = 2.8 x 10^-9
  69. chemistry

    what is the conjugate base of H2SO3??
  70. chemistry

    what is conjugated base of NH4+
  71. Chemistry

    Is C2Cl2 a bent molecule
  72. chemistry

    what is the formula for magnesium with Nitrogen
  73. Chemistry

    solve Ka for HX => H^+ + X^- given 0.1M LiX at pH=8.9
  74. Chemistry

    How many moles are there in a 4.3 mole of tungsten?
  75. Chemistry

    How many protons, nuetrons, and electrons are in 18 2- O 8
  76. Chemistry

    How many moles are there in a 4.3 mole of tungsten?
  77. Chemistry

    Why do atoms display spectra?
  78. Chemistry

    Is xylose a pentose or a hexose?
  79. Chemistry

    What does equivalence point mean?
  80. chemistry

    45.0 ml of 9.0x10 the negative 2m hno3
  81. Chemistry

    what is the % of mass of 50.0g of solute in 45.0g of water?
  82. chemistry

    what is the vapor pressure of ethonal at 75°c?
  83. chemistry

    the kingdom animalia includes
  84. chemistry

    H2(g)+Cl2<--->2HCl(g)+184kj
  85. Chemistry

    can u calculate the number of moles 0.5g of H?
  86. chemistry

    What is the oxidation number of Ga in Ga(NO2)3? is it O?
  87. Chemistry

    DrBob, if you're still on...what do I do for NaCl??
  88. chemistry

    What is the pH of a solution that is 0.20 M CH3COOH and 0.10 M CH3COONa?
  89. Chemistry

    Is 20.0 mL of 3.0 M HF a buffer solution with an approximate pH of 3?
  90. chemistry

    what is the density of O2 gas at STP
  91. chemistry

    how to find grams from 12 moles
  92. chemistry

    when is a chemical bond broken
  93. Chemistry

    How do you convert fahrenheit to "K" If its 60 degrees F, how do I get to "K" Thank you
  94. Chemistry

    Q: How is melting different from evaporation?
  95. Chemistry

    Q: How is boiling different from sublimation?
  96. Chemistry

    Is the formula for benzene : C6H6 ?
  97. chemistry

    what is the value of log in a pH calculation?
  98. Chemistry

    Balance the solutions of Fe2+
  99. college chemistry

    density of sulphur
  100. chemistry

    What is the molecular mass of aspirin?
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