1. PHYSICS

    A duck is floating on a lake with 22% of its volume beneath the water. What is the average density of the duck?
  2. Chemistry

    A 11.8 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
  3. math

    a circular pond has a diameter of 1.8m and a depth of 55cm. if we fill the pond with water, what is its volume
  4. Horizon

    What would the final volume of water be if 80.0 kJ were added to a 100.0 mL sample at 100.0 degrees Celsius?
  5. CHM 152

    A 0.750 L bottle of a French Merlot is said to contain 12.5% alcohol by volume. How much of the liquid, in mL, in the bottle is water?
  6. Chemistry

    what volume of water must be added to 10ml og 6.0M NaOH to make a solution that is .30 M in NaOH How do I solve for this
  7. Chemistry

    Please help me understand!..If you have 100.0mL of a 30.0% aqueous solution of ethanol, what volume of water is in the solution?
  8. Chemistry

    3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?
  9. chemistry

    if air contains78% of nitrogen by volume what is the solubility nitrogen in water at 25 degree celcius?
  10. Chemistry-Urgent

    What is the percent by volume of ethanol in a solution that contains 26 mL of ethanol dissolved in 113 mL of water? explain please
  11. Chemistry

    What volume of water should be added to 500 mL of a 1.0 mol/L CuSO4 solution to dilute it to 0.5 mol/L?
  12. Environmental Science

    Many areas of the world that do not have adequate fresh water have become habitable because a.rainfall patterns have changed b.water management projects have diverted water to the areas c.icebergs have been towed in to provide fresh water d.people have
  13. Analytical Chemistry

    Predict the effect (Increase, Decrease, No effect, Indeterminate)and explain why 1. Condition: In the determination of water hardness, the water sample contained appreciable amount of ferric ions Paameter: ppm CaCO3 2. Condition: Instead of MgCl2*H2O,
  14. 11th grade ..CHEMISTRY

    This is a Quantitative Redox titration. (KMnO4) = 1.8 G.. 500 ML after the experiment we had to record the data of the 3 trials. 1. Trial - VolUme FeSO4 = 10.00 Ml - VOlume KMnO4 11.00 Ml 2. Trial - VolUme FeSO4 = 10.00 ML - VOlume KMnO4 11.15 Ml and we
  15. Chemistry

    Just having some trouble with this chemistry problem.. Thanks for help! Toxic carbon monoxide (CO) gas is produced when fossil fuels such as petroleum burn without enough oxygen. The CO can eventually be converted to CO2 in the atmosphere. Automobile
  16. Math

    A water tank is 5m tall and has a diameter of 3,5m.calculatethe capacity (volume) of the tank
  17. science

    Calculate the volume of distiled water to prepare 10%w/v solution of solute if 8g of the solute is to be used.
  18. Physics

    A Canada goose floats with 26.1% of its volume below water. What is the average density of the goose?
  19. science

    What is the concentration in % by volume of acetic solution 50 ml acetic acid and 400 ml water
  20. chemistry

    If 5.29 g of CuNO3 is dissolved in water to make a 0.370 M solution, what is the volume of the solution?
  21. Chemistry

    How much volume (in mL) of 0.75 M K2SO4 (aq) and water must be mixed to prepare to 150.0 mL of 0.10 M K2SO4 solution? Thanks!
  22. Physics

    Ice floats with one ninth of its volume above water. What is the relative density of ice?
  23. Chem Scc

    5.82 g of CuNO3 is dissolved in water to make a 0.240 M solution. What is the volume of the solution?
  24. chemistry

    One has 100.0 grams of water and 45.0 grams of ice in a flask at 0 C. (a) what is the total volume?
  25. Physics

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

    16g of bone displaced a volume of 8mL of water.what is the density of the bone?
  27. chemistry

    What is the combined volume when 10 cm3 of acetone are added to 10 cm3 of distilled water?
  28. chemistry

    If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?
  29. chemistry

    8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution
  30. chemistry

    If 8.16 g of CuNO3 is dissolved in water to make a 0.500 M solution, what is the volume of the solution?
  31. Chemistry

    If 8.87 g of CuNO3 is dissolved in water to make a 0.500 M solution, what is the volume of the solution?
  32. chemistry

    If 7.63 g of CuNO3 is dissolved in water to make a 0.180 M solution, what is the volume of the solution?
  33. chemistry

    what volume of water should be added to 300ml of HNO3 0.25M to obtain HNO3 0.2M?
  34. chemistry

    if 200mg of HCl is added to water to achieve a final volume of 1.00 L, what is the final pH?
  35. English Comma splices and run on sentences

    The recipe says to stir together flour, salt, and baking soda _______ add to butter, eggs, and vanilla mixture and stir to blend. add the word and insert a question mark insert a comma insert a period and make two separate sentences I first thought it was
  36. Chemistry

    An unknown amount of water is mixed with 310 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 58.2 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M
  37. Chemistry

    An unknown amount of water is mixed with 350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 51.2 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M
  38. Chemistry

    An unknown amount of water is mixed with 310 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 58.2 mL of 6 M HCl. Calculate the concentration of the diluted NaOH solution. Answer in units of M
  39. physics

    A toy boat has a volume of 0.0005m^3. It has a mass of 450 grams. How much of the boat is under fresh water?
  40. Chemistry

    what is the pH and pOH of a solution made by adding water to 15 grams of HCl until the volume of the solution is 2500mL?
  41. Chemistry

    what is the pH and pOH of a solution made by adding water to 15 grams of HCl until the volume of the solution is 2500mL?
  42. Chemistry

    A 50 mL sample of 8% (m/v) NaOH is diluted with water so that the final volume is 200 mL...what is the final concentration and how did you figure it out?
  43. science

    If an object has a mass of 56g and a volume of 22cm', will the object float in water? explain your answer.
  44. Ps 327x math

    A spherical tank has a radius of 60 centimeter. Find the maximum volume of water the tank can hold.
  45. chemistry

    150 mL of a 4.00 molar NaOH solution is diluted with water to a new volume of 1.00 liter. What is the new molarity of the NaOH?
  46. Chemistry

    What volume of liquid water is produced from the combustion of 10.00 L of octane, C8H18? (density of octane=0.692 g/mL
  47. science

    what is the acceleration of a small metal sphere as it falls through water? sphere weighs .28 n, volume is 13cm^3
  48. Chemistry

    If 0.0365 mol of CaCl2 is dissolved in water to make a 0.640 M solution, what is the volume of the solution?
  49. Chemistry

    What volume of 14.1M HBr is required to make 250mL of 1.25M HBr solution by dilution with water?
  50. Chemistry

    Suppose you titrated a sample of distilled water with EDTA, approximately what volume of EDTA would be required?
  51. math

    which has greater volume? a) 1.0 kg of feathers or 1.0 kg of lead b) 100 g of gold or 100 g of water c) 1.0 L of copper or 1.0 L or mercury
  52. Chemistry

    Making a solution at 100•C What would be the smallest volume of water needed to dissolve 12.0g of KNO3 at 100•C
  53. Chemistry

    Prepare 0.03 mole fraction solution of NaOH in water Total volume of solution is 100ml
  54. Biology

    1. Which of the following is a biotic factor that might affect the life of a water-dwelling organism? A. Temperature of the water B. Speed of water current C. Pollutions in water D. Bacterial population in water My guess: D? 2. Which of the following
  55. Chemistry

    You add 7.326g of solid CaCl2 to 45.5 mL of water in a coffee cup calorimeter and measure as the temp. Increase from 22.6 C to 41.5 C. Specific heat water is 4.184 J/ g.C and the density of water is 0.9977 g/mL. Find the mass of water. PLEASE HELP ME!!!
  56. chemistry

    Why is water essential to living things? A. Water is essential because it is an inorganic compound. B. Water is essential because it contains hydrogen and oxygen atoms. C. Water is essential to many of the chemical reactions that occur in the body. D.
  57. Physics

    It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.20 m). As one goes deeper and deeper in the ocean, the pressure increases by 1.0*10^4 Pa for every meter below the surface. If a diver goes down 33.0 m (a bit
  58. Calc help - check rest of answers, please?

    4. Find the tangent line approximation, L(x), of f(x)=x^2/3 at x = 8. L(x) = 4/3x-20/3 L(x) = 2/3x+8 L(x) = 4(x-8) L(x) = 1/3x + 4/3 *L(x) = 4/3x - 8/3 5. A balloon is rising at a constant speed of 5 ft/sec. A boy is cycling along a straight road at a
  59. Math

    The size to which a pumpkin grows while on the vine is probably problematic, as our current visiting POLY pumpkins demonstrate. What if we were watching a pumpkin on the vine grow over time and that its shape was totally spherical. Now for your five (5)
  60. Technology

    23. ? List two examples of tools used in each of these major areas of processing: material, energy, and information processing. Ok, this wasn't so hard: 23. There are a few tools that are used in each of the three major types of processing: material,
  61. Chemistry

    A 8.07g sample of impure Ag2O decomposes into solid silver and O2(g). If 395mL of O2(g) is collected over water at 25 degrees Celsius and 749.2 mmHg barometric pressure, then what is the percent by mass of Ag2O in the sample? The vapor pressure of water at
  62. Physics!! Help

    someone swings a bucket of water in a vertical circle. Describe the water's motion to another person? or How would you? & also how to explain the motion of the water to them? How come the water didn't fall on the persons head? A: Centrifugal force causes
  63. PHYSICS Centrifugal force

    someone swings a bucket of water in a vertical circle. Describe the water's motion to another person? or How would you? & also how to explain the motion of the water to them? How come the water didn't fall on the persons head? A: Centrifugal force causes
  64. Physics

    Suppose the density of the Earth was somehow reduced from its actual value to 1300 kg/m3. What would be the value of g, the acceleration due to gravity, on this new planet? Assume the radius does not change. I know that density = mass/volume & the volume
  65. math

    The manager of a tea shop mixes two types of teas to make a specialty blend. Alone, the teas sell for $3.99 and $8.99 per ounce. How many ounces of each type of tea should be used to make 32 ounces of a mixture that sells for $5.99 per ounce?
  66. PHYSICS

    An automobile of mass 1200kg accelerates from rest to a speed of 20.0m/s in 12.0 seconds. What is the magnitude of the net force acting on the auto?
  67. Physical science

    Determine the centripetal acceleration of an automobile making a tight turn that has a radius of 256 m, if the is traveling at a velocity of 25.0 m/s as it turns.
  68. math 1

    An advertiser needs a 4-inch picture of a 14 foot automobile. What is the scale factor? Write your answer in simplest form using a colon.
  69. Managerial Ecomonics

    If the goal of society is to get the most benefit from its limited resources, then why not ignore economic efficiency and build the energy-saving automobile?
  70. plz help me

    Create a paragraph answering these questions: What were the benefits to society from the automobile? How was life easier? What changed? plz help me damon or anyone else
  71. economics 212

    Which of the following pairs are examples of substitutes? a. popcorn and soda b. automobile and bicycles c. boats and fishing tackle d. wine and cheese
  72. physics

    An automobile tire is rated to last for 60,000 miles. To an order of magnitude, through how many revolutions will it turn? I don't know what circumference i should use for 1 rev
  73. Science

    Which component of the technological system is achieved when an automobile airbag inflates? A. Input B. Feedback C. Process D. Output Is the answer B?
  74. physics

    The brakes on your automobile are capable of creating acceleration of 14 ft/s2. If you are going 66 mi/hr and suddenly see a state trooper, what is the minimum time required to get your car to 55 mi/hr?
  75. physics

    what is the maximum speed at which automobile can round a curve of 100 ft radius on level if the coefficient of friction between the tires and the road is 0.35?
  76. math

    40% of k liters of acid are added to 60% of w liters of water. Write an algebraic expression for the total volume of the solution.
  77. osu

    a 50.0 ml sample of a 15% (m/v) solution of H2SO4 is added to water to give a final volume of 250.0 ml. What would the final concentration be?
  78. chemistry

    A steel block has a volume of 0.08 m and a density of 7,840 kg/m. What is the force of gravity acting on the block ( the weight ) in water?
  79. Chem

    The molar weight of MgSO4 is 120.366gmol-1. What is the mass/volume percentage of a 2.5M water solution of MgSO4?
  80. science

    A solution is prepared by mixing 90 ml of 5 M HCl and 30 ml of 8 M HNO3. Water is then added until the final volume is 1 L. Calculate the [H+], [OH-], and the pH for this solution.
  81. Math

    A cone is 14cm deep and the base radius is 4.5cm. Calculate the volume of the water that will fill the cone
  82. science

    Which object is denser, 100cm cubed of wood that weights 61 grams, or 10 grams of water that has a volume of 10ml?
  83. maths

    what volume of distilled water must be added to 165mls of stock solution to make 1200mls of diluted solution
  84. Chemistry

    To what volume must 1580mL of 0.2005 N solution be diluted so that the resulting solution will be 0.1899 M? How much water will be needed in the dilution?
  85. physics

    The surface area and the average depth of the Pacific Ocean are 1.8 x 10 8 km 2 and 3.9 x 10 3 m, respectively. Calculate the volume of water in the ocean in liters.
  86. Chemistry

    If you add enough water to 175.0 mL of a .15 M NaCl solution until the final volume is 350.0 mL, what will the molarity of the diluted solution be?
  87. science

    a body floats with only 30% of its volume out of water.calculate the density of this body.
  88. chemistry

    what volume of water must be added to dilute 5.0 L of .50 M HCl solution into a .10 M solution?
  89. physicalscience

    The volume of a sample of water is 20 cm3. The mass of this sample is closest to
  90. Chemistry

    How much volume(mL)of 2.50 M NaOH(aq)must be added to 25.0 mL of water to produce a 1.50 M NaOH solution? Thanks!
  91. Chemistry

    What is the % by volume of an alcohol solution prepared from 35 ml alcohol and 350 ml of water?
  92. Chemistry

    What is the % by volume of an alcohol solution prepared from 35 ml alcohol and 350 ml of water?
  93. chemistry

    A piper delivers 9.97 g of water at 20c. what volume does piper deliver?
  94. Chemistry

    A hot air balloon is filled with hot air and the hot air forces the volume of the balloon to expand until the density of the gas in the balloon is less than the density of the outside air. The volume must be 20% larger than the balloon would be at STP in
  95. AP Physics

    You go to kitchen to boil water. You pour 280 gram of water to a container, and put the container on a 293 W electric heater. Assume that all the heat from the heater is used to heat the water. The specific heat of water is 4.19 J/g ° C. As always, be
  96. College Physics

    Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the differences between the
  97. Science

    A family is planning to build a raised planting area using a blend of peat moss, mulch , and a rich organic soil in which to grow the plants. They have been told first to place on the ground a layer of material that will allow for a proper drainage each
  98. chemistry

    Can someone please help me with this one? Explain which of the following statements does not make sense: a. a role of masking tape weighs 350 micrograms b. 92 cm cubed of water was poured onto the table c. the room covers an area of 200 m cubed I was
  99. AP Chemistry

    2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!
  100. Chemistry

    a diver swimming at a depth of 10m under the water observes that the size of his air bubbles increase in volume as they rise to the waters surface. which gas law does this relate to?