Calculate the density of mixture which has 10ml of Etoh and 5 ml of Di Water would you do the mass of the mixture/the volumetric flask, but for the mass of the the volume would you have to do the

62,026 results
  1. Science

    Calculate the mass of displaced water when a piece of 30 cm thick iceberg with surface area 1000cm^2 floats on water Given(density of ice=0.9g/cm^3 &density of water=1gm/cm^3

  2. physics(heat)

    a mixture of 250g of water and 200g of ice at 0deg C is kept in a calorimeter which has a water equivalent of 50g. if 200g of steam at 100deg C is passed through this mixture, calculate the final temperature and the mass of contents of the calorimeter. ans

  3. Chemistry

    If you have 320.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

  4. Physics

    A solid of density 5000 kg/m^3 weighs 0.5 kgf in air.It is completely immersed in water of density 1000 kg/m^3. Calculate the apparent weight of the solid in water.

  5. Another Physics

    At some point in the combustion cycle of an engine, the temperature of a combusted air-fuel mixture is 582 degrees Celsius. Given that the pressure in the mixture is 6.2 bar, determine the density of the mixture (in kilogram per cubic metre).

  6. maths

    A piece of metal has a volume of 20 cm^3 and a mass of 300g.Calculate the density of the metal in kg/m^3.i got 15.plz confirm my answer.And how does one go about this.2.5 litres of water density 1g/cm^3 is added to 8 litres of alcohol density 0.8

  7. Chemistry

    I am so confused with my chemistry lab right now. We were given the following equations to work with: [Equation 1] 2 I^- + H2O2 + 2 H^+ ----> I2 + 2 H2O [Equation 9] 2S2O3^2- + I2 ----> 2I^- +S4O6^2- And During the Experiment we used the following for each

  8. maths

    Three litres of water 1g/cm^3 is added to twelve litres of alcohol density 0.8g/cm^3.What is the density of the mixture?

  9. Physics

    Water of mass 120g at 50°c is added to 200g of water at 1 0°c and the mixture is well stirred . calculate the temperature of the mixture .(neglect heat losses to the surrounding)

  10. Chemistry

    Calculate the concentrations of S2O8 2-, I-, S2O32 2- in moles per litre of reaction mixture given the following: 20mL of 0.1 M (NH4)2S2O8 added to: 20mL of 0.2M KI 10mL of 0.01M Na2S2O3 5mL 0.2% starch Also, calculate -(delta)S2O8 2- that is, how much

  11. PHYSICS

    If 32 g of kerosene of density 0.80 g/cm^3 are mixed with 8 g of water. What is the density of the resulting mixture

  12. Chemistry

    The solubility of KNO3 is 80g/100g water at 50 degrees and 10g/100g water at 0 degrees. The solubility of CuSO4 is 60g/100g water at 50 degrees and 20g/100g water at 0 degrees. A mixture contains 13.8g of KNO3 and 1.94g of CuSO4. A) Calculate the minimum

  13. Physics-Math

    1.5 m3 of water is mixed with 0.50 m3 of alcohol. Density of water is 1000 kg m–3 and density of alcohol is 800 kg m–3. Whats the density of the mixture with volume 2.0 m3?

  14. Chemistry

    A dry mixture of kno3 and sand could be separated by 1. adding water to the mixture and filtering 2. adding water to the mixture and evaporating 3. heating the mixture to a high temperature 4. cooling the mixture to a low temperature

  15. math for laboratory science

    Determine the quantity of stock 75.0% v/v EtOH required to prepare 300ml of a 25.0% v/v EtOH solution

  16. Chemistry

    25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal

  17. 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

  18. INTRODUCTION TO PHYSICS

    Question A mixture of alcohol and water has the density 750 kg m 3.calculate the ratio in the mixture of alcohol to water by i.mass ii.volume

  19. science

    Suppose two 45-g ice cubes are added to a glass containing 500 cm3 of cola at 20,0°C. When thermal equilibrium is reached, all the ice will have melted, and the temperature of the mixture will be somewhere between 20,0°C and 0°C. Calculate the final

  20. Chemistry

    28.5g of iron shot is added to a graduated cylinder containing 45.50mL of water. The water level rises to the 49.10mL mark. From this information, calculate the density of the iron.

  21. chemistry

    I used 10mL of unknown NaCl-NaBr mixture titrate with 0.10M silver nitrate solution. 10.15mL of silver nitrate solution is used. the conc. of NaCl-NaBr mixture is 8g/dm3 I need to calculate the % composition of the NaCl-NaBr mixture.

  22. chemistry

    If you combine 360.0 mL of water at 25.00 °C and 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

  23. science

    Listed below are six mixtures. Identify physical properties of the components that allow you to separate them. Then, explain the method you would use to separate the components. Mixture 1: Salt dissolved in water Physical Properties: Density Method of

  24. chemistry

    How do you calculate the pH when the following substances are added to a buffer.(all of the solutions are at .10M conc.) The buffer: 50mL NH3 + 50mL NH4NO3 1) 10mL buffer + 6mL water 2)10mL buffer + 5mL water +1mL HCl 3)10mL buffer + 6mL HCl 4)10mL buffer

  25. chemistr

    10g of nacl were added to 10ml of water. he resulting solution was diluted to be a final volume of 250ml. Calculate the molarity of the solution. My calculation 10g/58g/mol = 0.173M 0.173M/025L =0.689M Given the density of the solution is 0.9864g/ml.

  26. Chemistry

    In a thermochemistry experiment the reaction of 0.0857 g of an unknown metal and an excess of 4.0 M HCl resulted in a 0.210 mL decrease in the volume of an ice/water mixture. Calculate the enthalpy of this reaction per 1 g of metal reacted. Needed data:

  27. chemistry

    Calculate ∆T for the reaction. Assume the initial temperature of both reactants is 25.0◦C. Calculate the volume of the reaction mixture. Calculate the mass of the reaction mixture. Assume the density of the mixture is 1.03 g mL^(-1). Calculate the heat

  28. Chemistry

    If you have 290.0 mL of water at 25.00 °C and add 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

  29. Science

    Which objects will sink or float if the density of pure water is1/gm or 1gm/cm3. The following of the following objects will sink or float if the mass, volume, and density of the objects are: Small sized block : mass=4.5 grams, volume=2.744 cm3, density:

  30. physics

    1. A cylinder tank is 30m deep,calculate the pressure extended at the bottom of the tank,when it is four-fifth filled with water (g=10mg-2,density of water =1000kgm-2) 2.a sample of air weighing 1.32*10^2N is confined in a room measuring

  31. chemistry

    the density of water 20 degrees celcius is 1.00g?mL and the densityof ethylene glycol is 1.114g/mL, if 100.0mL if water is combined with 25.0mL is ethylene glycol, what would be the density of this mixture?

  32. Physics

    what is the general relationship between the density of solids and the density of liquids? Are you talking about the density of substance X in the solid state vs the density of the same substance in the liquid state. GENERALLY, solids have a higher density

  33. Chemistry

    Sea water contains an average of 270 ppm of sulfate ion. Calculate the molar concentration of sulfate given that the average density of sea water is 1.02 g/ml. -At first i tried assuming that density is 1.00 g/ml which is a common practice in ppm problems

  34. Physics

    In an immersion measurement of a boy’s density, he is found to have an apparent weight of 6.86-N when completely submerged in water with lungs empty. The mass of the boy is 68.0-kg in air. The density of water is 1000-kg/m^3. a)Determine the density of

  35. CHEMISTRY

    ETHANOL (C2H5OH) HAS A DENSITY OF 0.80g/ml. IF A 10%(v/v) MIXTURE OF ETHANOL IN WATER WAS PREPARED HOW MANY GRAMS OF ETHANOL WOULD BE IN 100ML OF THE MIXTURE? (ASSUMING MIXED VOLUME IS THE SUM OF THE PARTIAL VOLUME)

  36. Chem

    Calculate the density of mixture which has 10ml of Etoh and 5 ml of Di Water would you do the mass of the mixture/the volumetric flask, but for the mass of the the volume would you have to do the mass with the liquid-mass of empty flask.

  37. Chem

    mass of empty cylinder is 87.470g 97.470g w/10mL of water 107.470g + 10mL of water 117.470g + 10 more mL of water need to know the total volume of water (in mL or cm3) total mass of water density of water calculate the average of the 3 densities of water.

  38. organic chemistry

    Partition (distribution) coefficient, k, of benzyl alcohol in hexane and water is 12.0. Choose for the correct equation for the amount of benzyl alcohol as x that you should use to calculate the amount of benzyl alcohol extracted with one 10mL portion of

  39. science

    the hydrogen ion concentration in a mixture of 10ml 0.1 M H2SO4 AND 10ml 0.1M KOH solution in water is?

  40. ochem

    Can you suggest some possible reasons for using a mixture of water and ethanol (1:1 mixture H2O/EtOH) as crystallizing solvent rather than using either pure ethanol or pure water?

  41. college chemistry

    How do you calculate the pH difference when the following substances are added to a buffer.(all of the solutions are at .10M conc.) The buffer: 50mL NH3 + 50mL NH4NO3 1) 10mL buffer + 6mL water 2)10mL buffer + 5mL water +1mL HCl 3)10mL buffer + 6mL HCl

  42. Chemistry

    New problem. Any assistance is greatly appreciated. 22.5 ml of ethanol (density=0.789 g/ml) initially at 7.7 deg. C is mixed with 31.6 ml of water (density=1.0 g/ml) initially at 27.1 deg. C in an insulated beaker. Assuming that no heat is lost, what is

  43. Maths

    Question A mixture of alcohol and water has the density 750 kg m 3.calculate the ratio in the mixture of alcohol to water by i.mass ii.volume

  44. chemistry

    mix 10ml NaBr 3.i000M wth 10ml water & 10ml AgNo3 3.3.1000M KspAgBr=5.25.1000 .what is the situation at equilibrium

  45. Chemistry

    At room temperature, ethanol's density is 0.789 g/mL while water's density is 0.997 g/mL. When a few milliliters of ethanol are added to water, the two liquids mix. A student is given a unknown liquid at room temperature and experimentally determines its

  46. chemistry

    consider a random mixture of two particles,diamond and SiC.Assume all particles are spherical with a radius of 0.100mm. The mixture is 80.0 wt% diamond(density=3.51 g/ml) and 20.0 wt% SiC (density=3.23 g/ml) a)Calculate the mass of a single particle

  47. chemistry

    10g of nacl were added to 10ml of water. the resulting solution was diluted to be a final volume of 250ml. Given the density of the solution is 0.9864g/ml. Calculate the molality of the solution. Who helps

  48. chemistry

    1(a) when 25.0ml of 0.500 mol.dm3 H2SO4(AQ) SOLUTION IS added to 0.025dm3 of 1.00 moldm3 KOH SOLUTION , THE TEMPERATURE OF THE REACTION MIXTURE RISES FROM 23.50 CELCIUS TO 30.17 CELCIUS . THE SPECIFIC HEAT CAPACITY AND DENSITY OF WATER 4.20j.g.celcius and

  49. chemistry

    mass of the metal 7.26g volume of water in the calorimeter 10mL initial temp of water in calorimeter 21.5 degrees C initial temp of metal 95.5 d C final temp in mixture in calorimeter 23.8 D C question: calculate the energy lost by the metal taking into

  50. Chemistry- help

    1) How do I calculate what the mass would be for the flask containing water and alkaseltzer if: -mass of flask and the 10ml of water equals 150.23g -mass of alkaselzer equals 0.65g Calculate the mass of the carbon dioxide gas if: -mass of flask , water ,

  51. science(chem)

    I'm making different concentrations of ethanol and I just wanted to check my calculations and method. Making ethanol concentrations of: 0.40% 0.30% 0.20% 0.10% 0.05% To make the 0.40% ethanol from stock solution using 100ml volumetric flask: (xg

  52. Chemistry

    I have a solution made up of 100 ml of distilled water and 2.0g of NaOH. I need to determine the total volumeof the solution in order to the calculate the mass of the reaction mixture. How do I do this? We are to assume the density of the solution is the

  53. Science

    When 50.0mL of .10M HCl and 50.0mL of .10NaOH, both at 22C are added to a calorimeter,the temperature of the mixture reaches 28.9C. Calculate the heat produced by this reaction. Density of water 1.00g/mL specific heat water=4.184J/g C

  54. Chemistry

    You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the pre-distilled mixture? (Do I just do: volume percent of

  55. Physics

    Urgent. A density bottle weigh 0.25 when empty and 0. 75 when. Filled with water and 0.65N when filled with alcohol calculate the volume of water,the density of alcohol. Take density of water=1000kg/m3 acceleration due to gravity= 10m/s

  56. Physics

    Is this correct?? Metal block weighs 500g in air and 446g completely submerged in water. Calculate density and relative density. Density of water = 1000kg/m3 BF (Buoyant force) will be 500g-446g = 0.54 g (or 0.054 kg). For volume: If BF =

  57. Abby

    If you have 320.0 mL of water at 25.00 °C and add 140.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

  58. chemistry

    If you combine 360.0 mL of water at 25.00 °C and 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

  59. chemistry

    If an irregular object displaces 10mL of water within a graduated cylinder and its density is known as 2.5 g/mL. What is the mass of the object?

  60. Chemistry

    If the column of water in the water barometer fore to a height of 35ft, what would the atmospheric pressure be in mm Hg? mmH20X(density of water/density of Hg)= mmHg Density of water=0.99707 Density Hg=13.5340

  61. science-chemistry

    please anwser soon, a rigid 4.10L flask contains a mixture of 1.25 moles of H2, 0.250 mole of O2, and sufficient Ar so that the partial pressure of Ar in the flask is 1.00 atm. The temperature is 63.5 degrees C A) Calculate the total pressure in the flask

  62. Science

    Roger made a mixture of salt and sand.Which of the following procedures explains the easiest way to separate the mixture? A.Pour the mixture into a glass of water and stir it until the salt dissolves.Pour the micture through a filter.Evaportate the water.

  63. Chemistry

    I was wondering if you would be able to help me with a Chemistry question about the theoretical pH of a buffer solution. I have to calculate the theoretical pH values expected for a 200mL buffer solution containing a 1:1 ratio of acetic acid and sodium

  64. Chemistry

    Using your 0.0100M oxalate solution and only the equipment and supplies listed below, describe how to prepare a 0.00025M solution of oxalate. Note, you are not allowed to add volumes with pipettes. (example, if you want 20mLs, you can not use a 10mL + 10mL

  65. chemistry

    Using your 0.0100M oxalate solution and only the equipment and supplies listed below, describe how to prepare a 0.00025M solution of oxalate. Note, you are not allowed to add volumes with pipettes. (example, if you want 20mLs, you can not use a 10mL + 10mL

  66. physics

    the mass density of a mixture of ethyl alcohol and water is 950kg/m^3. is the mixture mostly water, alcohol, or about half and half. What is your reasoning?

  67. science (density)

    1) mass=100g, volume=10ml,density= 2) volume=7ml, mass=70g, density= 3) mass=50g, volume=10cm3, density= 4) volume=30cm3,mas=90g,density= 5) mass=120,volume=6ml,density= Thanks everyone i apresheate your help.

  68. Chemistry

    A 459.1-g sample of an element at 187°C is dropped into an ice–water mixture; 102.5 g of ice melts and an ice–water mixture remains. Calculate the specific heat of the element. ΔHfusion = 6.02 kJ/mol (for liquid water at 0°C).

  69. chemistry

    What is the concentration of this solution? If you added 10mL of water to the 10mL of 0.010M CaCl2 solution.

  70. Chemistry

    You mix 19.5 gallons of a mixture containing 12 wt% NaCl (sol'n density = 1.0837 g/cm^3) with V2-gallon sol'n that is 20 wt% NaCl (sol'n density = 1.1453 g/cm^3). Needed mixture is 19 wt% NaCl Whats the V2 in gallons? (all solutions are in water so just

  71. algebra

    Your automobile radiator contains 15 quarts of an antifreeze mixture. A test shows the mixture is 40% antifreeze and 60% water. The owner's manual says the mixture should be 50% antifreeze and 50% water. How much of the mixture should be removed and

  72. Chemistry

    if 12.8g of NaCl is added to 243.2 mL of water (density (1.00g/mL)). the volume occupied by the solution is 250.0 mL. Calculate the density of the salt water.

  73. chemistry

    If 51.6 mL of ethanol (density = 0.789 g/mL) initially at 6.4°C is mixed with 48.9 mL of water (density = 1.0 g/mL) initially at 29.1°C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?

  74. Chemistry I

    25.0 mL of ethanol (density = 0.789 g/mL) initially at 4.2°C is mixed with 35.7 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?

  75. chemistry

    25.6mL of ethanol (density =0.789 g/mL) initially at 5.4∘C is mixed with 30.4mL of water (density = 1.0 g/mL) initially at 20.4∘C in an insulated beaker.Assuming that no heat is lost, what is the final temperature of the mixture?

  76. Science

    An object weighed 7N in air and 5N in water.If the object is immersed completely in water and the density of water is 1000kg m-3, calculate the ; (a) weight of water displaced, (b) Volume of the object (c) density of the object

  77. Physics

    60 cm^3 of gasoline are mixed with 55 cm^3 of water. What is the average density of the mixture? the density of gasoline: 680

  78. Azeotrope

    I'm having trouble understanding what an azeotrope is. Any clarification is appreciated. Sheryl Two liquids with different boiling points normally can be separated by fractional distillation; i.e., the lower boiling point material boils first and when all

  79. science

    A solution of ethanol water is prepared by dissolving 10ml ofethanol density 0.789g/mol in a 100ml of a solution with density 0.982g/mol.what is the cerntration of ethanol in the solution expressed in mass percent?;mass/volume percent?

  80. CHEMISTRY

    I used 10mL of unknown NaCl-NaBr mixture titrate with 0.10M silver nitrate solution. 10.15mL of silver nitrate solution is used. the conc. of NaCl-NaBr mixture is 8g/dm3 I need to calculate the % composition of the NaCl-NaBr mixture. I used the following

  81. Physics

    6.22 )An ornithologist weighs a bird bone in air and in water to find the bone's density. The mass of the bone in air is 25.0 g and its apparent mass in water is 2.0 g. a. What mass of water does the bone displace? b. Calculate the volume of water

  82. University of Belize

    5. A 0.500 g sample of a BaCl2•2H2O/Na2SO4 salt mixture, when mixed with water, filtered, and dried, produced 0.225 g of BaSO4. The Na2SO4 was determined to be the limiting reactant. a. Calculate the mass, in grams, of Na2SO4 in the mixture. b. Calculate

  83. Chemistry 12

    In a lab the task was to dilute a 1.0M sol'n of Acetic Acid to a sol'n with a final pH of 4.15. The method I used to solve this was apparently wrong, but I don't understand how or why. Please help! Here is what I did: AcOH + H2O H3O+ + AcO- First I found

  84. Chemistry

    When 4.62 mL of cold water at 22.6 °C is mixed with 37.5 mL of hot water at 67.9 °C in a thermally isolated calorimeter, what is the final temperature of the mixture when thermal equilibrium has been achieved? H2O density = 1.00 g/mL.

  85. chemistry

    Consider a mixture of 50% water and 50% of mass ethanol, whose relative density is equal to 0.9138. Get the mass of ethanol contained in 100m3 of mixture.

  86. Chemistry

    A sample of hydrogen gas (H2) is produced in a laboratory by displacement of water. A 645 mL sample of hydrogen is collected at 25 degrees Celsius and a total pressure of 758 torr. Collecting gas by water displacement causes the gas to become saturated

  87. chemistry

    Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations you made over the course of Part I. Aluminum Measured Mass of Metal 41.66 g Distilled Water Measurement 25 mL Distilled

  88. Math

    1. Calculate the amount of fluorescein (MW 332.31) you will need to make 10 mL of 15 mM solution in ethanol (EtOH). My answer:0.05 g 2.Using Equation C1V1=C2V2 calculate the volume of stock solution (15 mM) you need to make 1 mL of each working solution

  89. Chemistry

    A 0.9000g sample of a mixture NaCl and KCl is dissolved in water and the solution is then treated with an excess of AgNO3 to yield 1.933g of AgCl. Calculate the percent by mass of each compound in the mixture

  90. Chemistry

    New problem. Any assistance is greatly appreciated. 22.5 ml of ethanol (density=0.789 g/ml) initially at 7.7 deg. C is mixed with 31.6 ml of water (density=1.0 g/ml) initially at 27.1 deg. C in an insulated beaker. Assuming that no heat is lost, what is

  91. college chemistry

    How do you calculate the pH when the following substances are added to a buffer.(all of the solutions are at .10M conc.) The buffer: 50mL NH3 + 50mL NH4NO3 1) 10mL buffer + 6mL water 2)10mL buffer + 5mL water +1mL HCl 3)10mL buffer + 6mL HCl 4)10mL buffer

  92. Physic

    What is the density of mixture of 1.5 m³ of water, 0.5 m³ of alcohol of density 800kg/m³? (density of water= 1000kg/m-³)

  93. Mechnical principles

    Mtal block weighs 500g in air and 446g completely submerged in water. Calculate density and relative density. I know relative density is density of material/density of water (1000kg/m-3)

  94. physics

    1.5 m3 of water is mixed with 0.50 m3 of alcohol. Density of water is 1000 kg m–3 and density of alcohol is 800 kg m–3. Whats the density of the mixture with volume 2.0 m3?

  95. Physic

    What is the density of mixture of 1.5 m³ of water, 0.5 m³ of alcohol of density 800kg/m³? (density of water= 1000kg/m-³) (a) 850kg/m³ (b) 950kg/m³ (c) 800kg/m³ (d) 900kg/m³

  96. Physics

    A wooden cube of side 5cm floats in water 200cm^2 of its depth below the water surface and ats sides are vertical calculate the density of the wood in g/cm^3.(1) Density of water in 1g(m^-3).

  97. science (density)

    1) mass=100g, volume=10ml,density= 2) volume=7ml, mass=70g, density= 3) mass=50g, volume=10cm3, density= 4) volume=30cm3,mas=90g,density= 5) mass=120,volume=6ml,density= Thanks everyone i apresheate your help.

  98. chemistry

    25.0 mL of ethanol (density = 0.789 g/mL) initially at 5.5°C is mixed with 32.3 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?

  99. Physics

    60 cm^3 of gasoline are mixed with 55 cm^3 of water. What is the average density of the mixture? the density of gasoline: 680

  100. Physics

    40 g of gasoline are mixed with 45 g of water. What is the average density of the mixture?

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