a density of 1.0 M solution of NaCL

29,952 results, page 80
  1. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  2. Physics

    Determine the relative density of a regular shaped object
  3. chem

    the density of mercury is 13.5g/cc what volume of mermury would have a mass of 100g?
  4. science

    If a steel-density is 7.8g\cm is put in water, will it float or sink
  5. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  6. Chemistry

    A sample of 50.0 mL if sulfuric acid that has a density of 1.84 g/mL would have a mass of how many grams?
  7. Science

    Mass= 48g; volume=24 cm3 . What is the density of this substance ?
  8. geo

    two reasons why it is useful to understand population distribution and density patterns.
  9. science

    What is the density of a copper sample that has a mass 90.0g and volume of 10g
  10. chemistry

    what is the volume (in ml)of a liquid(density=2.07 g/ml)weighing 130.grams?
  11. wireless

    suppose that a temparture is rising from o to 30'c than what will be note power density
  12. science

    Water has a density of 1g/ml. If an object has a densidy of less 1g/ml will sink or float?
  13. Chemistry

    Calculate the volume of 5.6 kg of ethanol that has the density 0.785 g/cm3
  14. Chemistry

    What is the density of hydrogen gas at 25 degrees celius and 1 Atm?
  15. Chemistry

    What do i do when i have a question that ask to compare the size and density of an atom with its nucleus.
  16. physics

    Mass of a block is 3.9 kg and volume is 0.0005 m. Find density in g/cm
  17. science

    The apparent weight of cube in liquid with relatibe density 0.9
  18. Chemistry

    Determine the density of methane (CH4) in g/L at 27.8oC and 1.1 atm.
  19. science

    The density of a substance with a mass of 90g is 2 g/cm cubed. What is the volume?
  20. Science-math

    Calculate the density of 25 Grams at a volume of 10 millimeters
  21. chemistry

    Wat is the volume of a 200g object that has the. Density of 1.27L?
  22. Chemistry-PLease help!

    What is the density of CO2 gas at -25.2 degrees celsius and 98.0kPa?
  23. physics

    a 20.0L sample of hydrogen gas has a mass of 1.80g. What will its density be in g/ml?
  24. chemistry

    prepare 500mM 100 ML HCL (37% purity, density 1.8)
  25. chemistry

    What is the density (in g/L) of hydrogen gas at 18.0 C and a pressure of 1670 psi?
  26. science-electromagnetism

    how do we calculate the current density given the magnetic field?
  27. science

    was is density if mass = 10g and volume = 2cm squared?
  28. chemistry

    7.Calculate the volume of a substance that has a density of 5.47 g/mL and a mass of 8.065 g.
  29. Chemestry

    I got NaOH 7%, its density is 1,08g/ml. Calculate the molar concentration
  30. Physics

    Find the density of a 5.8- solid cylinder that is 15 cm tall with a radius of 5.0 .
  31. Math!!!

    Suppose Y is a continuous variable whose density gives the following probabilities: Pr{ Y < -3 } = 0.05 Pr{ -3 < Y < -1 } = 0.15 Pr{ -1 < Y < 0 } = 0.3 Pr{ 0 < Y < 1 } = 0.3 Pr{ 1 < Y < 3 } = 0.15 Pr{ Y > 3 } = 0.05 Compute
  32. physics

    Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.
  33. Geography

    Which country has lower arithmetic density? Canada or Brazil
  34. chemistry

    Calculate the volume in milliliters of a 5.41-g sample of a solid with a density of 3.01 g/mL
  35. 6th grade social studies

    What is the population density of Wauwatosa, WI?
  36. Chemistry

    If aluminum has a density of 2.7g/cm3,what is the mass,in grams of the foil?
  37. Science

    I'm having trouble understanding the difference between mass and volume, and density
  38. Science

    How does the density and the elasticity of a medium affect the speed of a wave? PLEASE HELP!! :)
  39. Prin of Technology

    If 3 cm3 of a substance has a mass of 300 gm, what is its density?
  40. chemistry

    Wat is the volume of a 200g object that has the. Density of 1.27L?
  41. Chemistry

    What is the mass of 36.0mL of a liquid if its density is 2.70g/mL? is the right answer 97.2 g?
  42. chemistry

    An unknown substance has a mass of 53.9 g and occupies a volume of 35.4 mL. What is its density in g/mL?
  43. chemistry

    a piece of silver cut in half,density stays the same.Why?
  44. science

    What influence does the density of methylated spirit have on the surface tension?
  45. Human Geography

    How do I calculate the physiological density of Namibia? I can't find it!! HELP!! :)
  46. Science-math

    Calculate the density of 25 Grams at a volume of 10 millimeters
  47. college chem

    calculate the density of O2 gas( in g/L) at 1.22 atm and 25 degrees C
  48. chemistry

    what is the mass in kilograms of 750 mL of a substance that has a density of 0.930 g/mL?
  49. Chemistry

    Calculate the density of atoms on plane (001) in Lithium
  50. chemistry

    The measured density oe He at NTP is 0.1784g/l.what is the weight of one mole?
  51. lAM

    Calculate the density of oxygen, , under each of the following conditions: STP 1.00 atm and 25.0 C
  52. Science

    Is it incorrect to use g/ml as the unit for the density of a solid object? I thought g/ml and g/cc were the same.
  53. chemistry

    Given density of Mercury, 200.59....how do I calculate for the mass of 33.5mL
  54. science

    The measured density oe He at NTP is 0.1784g/l.what is the weight of one mole?
  55. chemistry

    What is the density of air if a 5000ml sample has a mass of 0.125?
  56. Chemistry

    What is the density of carbon dioxide gas at 25 C and 779 mmHg?
  57. chemistry

    What is the density of CO2 gas at -25.2 degrees celsius and 98.0kPa?
  58. Science-math

    Calculate the density of 25 Grams at a volume of 10 millimeters
  59. Chemistry

    What is the density, in grams per liter, of N subscript 2 gas at STP
  60. Science

    If a block has a mass of 16.2 grams and a volume of 14 cc. What is the density if calculated?
  61. Science

    calculate the density of 50.0 mg of a gas which occupies a volume of 0.0064 L.
  62. chemistry

    calculate the density of a liquid if 47.9mL of it has mass of 49.06g
  63. chemisty

    Calculate the density of oxygen,O2 , under each of the following conditions: 1- STP 2- 1.00 atm and 35.0 C
  64. chemistry

    what is the volume of a piece of wood that haas a mass of 6 g and a density of 0.5 g/mL?
  65. Physics

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

    What does salt to plain water do to its density? Explain your answer
  67. Chemistry

    The solubility of KCLO3 at 25 degree celcius is 10.9 per 100.g of h20. question: If 15 g are addded to 100 g of water at 25 degree celcius with stirring, how much of KCLO3 will dissolve? Is the solution saturated, unsaturated, or supersaturated? please
  68. Chemistry. can jus anyone giv me ther opinion.

    Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur?
  69. Math -

    A)For a certain commodity the demand equation is given by D=-3p+20. At the price of $1, four units of the commodity are supplied.If the supply equation is linear and the market price is $4, find the supply equation. B) how many litres of a 70% alcohol
  70. College Chemistry (DrBob222)

    A solution of an unknown weak acid, HA, is titrated with 0.100 M NaOH solution. The equivalence point is achieved when 36.12 mL of NaOH have been added. After the equivalence point is reached, 18.06 mL of 0.100 M HCl are added to the solution and the pH at
  71. chemistry

    According to the American Insurance Companies, on average, a vehicle is driven 12,000 miles per year. In the chemical equation below, gasoline is given as octane, or C8H18. Assume the vehicle gets 22.0 miles per gallon. The density of octane is 0.703 g/mL.
  72. chemistry

    1. (Answer c)The hydroxide ion concentration in a 1.0 mol/L solution of acetic acid at 25°C is a.4.2 x 10^-3M b.2.4 x 10^-11M c.2.4 x 10^12M d.2.4 x 10^-3M e.1.8 x 10^-5M I did [OH-]=root(Kw/Ka) x [salt] [OH-]=root(1.00 x 10^-14/1.8 x 10^-5) x [1] I don't
  73. chemistry

    Flask A contains 100 milliliters of a solution with a pH of 5. After you add 100 milliliters of a solution from Flask B, the pH rises to 7. What was the pH of the solution in Flask B?
  74. Algebra

    Match ABCDE with the solution set below A. {4/3, -4} B. {x|x > 4 or x < -4/5} C. No Solution D. {x| -11 < x < -7} E. All Real Numbers Solution set ABCDE|x + 9| < 2 ABCDE|5x - 8| > 12 ABCDE|3k + 4| = 8 ABCDE|x - 6| = -10 ABCDE|6x + 8| >
  75. Honors Chemistry

    1. What is the pH of a solution whose [H3O+] is 1 X 10^ -5 M? 2. What is the [H3O+] concentration of a solution with a pH of 9? 3. What is the pH of a solution whose [H3O+] concentration is 3 X 10^-3 M? 4. What is the pH of a solution with a [H3O+]
  76. Honors Chemistry

    1. What is the pH of a solution whose [H3O+] is 1 X 10^ -5 M? 2. What is the [H3O+] concentration of a solution with a pH of 9? 3. What is the pH of a solution whose [H3O+] concentration is 3 X 10^-3 M? 4. What is the pH of a solution with a [H3O+]
  77. Chemistry

    In lab we did thermochemistry, where we are supposed to find the heats of solution, heat change of calorimeter and molar heat solution of the salt. I calculated that the calorimeter constant for the water we had was 883.194 Joules. We took 1/10 of a mole
  78. Chemistry

    Question: a 25.00 mL. aliquot of a solution containing TI(aq) was treated with K2CrO4. the TI2CrO4 was filtered, washed free of excess precipitation reagent, and dissolved in dilute sulfuric acid. the dichromate ion produced was titrated with 40.60 mL. of
  79. Chemistry

    Determine if the solubility would increase, decrease, or stay the same: 1) A saturated solution of sugar water is cooled from room temp to 0 degrees Celsius. 2) A solution of ocean water with dissolved oxygen is heated from 10 degrees Celsius to 15 degrees
  80. 8th Grade Algebra- Answer Check

    Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y =
  81. Chemistry

    Balanced equations..done? Is each reaction a redox reaction? For those reactions that are redox reactions, I must identify the substance being oxidized and the substance being reduced... (a) Zn(s) + CoCl2 (aq) ---> ZnCl2 (aq) + Co(s) (b) HI(aq) +
  82. chemistry

    Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation, delta Hf? a) FeO(s) + CO2(g) -> FeCO3(s) b) 1/2 N2(g) + 2 O(g) -> NO2(g) c) 2 Na(s) + Cl2(g) -> 2 NaCl(s) d) Ba(s) + N2(g)
  83. Chemistry

    sample of silver metal is suspected to be contaminated with zinc. A 0.2365 g portion of this metal is dissolved in nitric acid and the silver ions precipitated with excess aqueous NaCl. After filtering and drying, the mass of the precipitate is found to be
  84. My Math

    ecide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x (1 point) one solution no solutions infinitely many solutions 2. 3(y – 3) = 2y – 9 + y (1 point) one solution no solutions infinitely many
  85. chemistry

    1.) a buffer is a substance which: a) donates H+ in acidic solutions b) accepts H+ in basic solutions c) accepts OH- in basic solution d) donates H+ in basic solution e) donates OH- in acidic solution f) accepts H+ in acid solution g) accepts OH- in acid
  86. Chemistry Damon

    1g of mixture of na2c03 and k2c03 was made upto 250ml is aqueous solution . 25ml of this solution was neutralized 20ml of hcl of unknow concentration. The neutralized solution required 16.24ml of 0.1N AGN03 for precipitation. Calculate a) the k2c03 is
  87. Chemistry

    What is the molarity of a phosphoric acid solution if 32.3 mL of the phosphoric acid solution is titrated to the final equivalence point with 20.6 mL of 0.581 M sodium hydroxide acid solution? H3PO4 + 3NaOH ==> Na3PO4 + 3H2O mols NaOH = 0.0206L*0.581 M=
  88. chemistry

    How many grams of NaCl must be added to 225.0 g of H2O at 45 °C to lower the vapor pressure of water by 2.21 mmHg? The vapor pressure of pure water is 71.93 mmHg at 45 °C.
  89. ap

    For an electrochemical reduction process, electrons are 1. taken from solution species at the surface of the cathode. 2. added to solution species at the surface of the anode. 3. added to solution species at the surface of the cathode.
  90. Solar Energy please help

    Solar simulators are used to study the performance of solar cells in the lab. In the figure below (left picture), the spectral power density of a solar simulator is shown with the blue line. The spectral power density of this solar simulator is given by:
  91. chem

    a mixture of NaBr & NaCl has a mass of 2g & found to contain 0.75g of Na. What is the mass of NaBr in the mixture?
  92. Science

    How would you prepare 10 mL of 0.08 M NaCl in sodium acetate buffer? (Stock Sodium acetate buffer: 0.1 M)
  93. Intermediate Algebra

    Solve the system of equations by graphing. Then classify the system. f(x)=x+1 g(x)=-8x+10 What is the solution of the system? a)The solution is___? b)There are infinitely many solutions c)There is no solution Is the system consistent or inconsistent?
  94. Intermediate Algebra

    Solve the system of equations by graphing. Then classify the system. y=-x-13 5x-4y=-20 What is the solution of the system? a)The solution is___? b)There are infinitely many solutions c)There is no solution Is the system consistent or inconsistent?
  95. Chemistry-help

    Hi, I have a question on Gas Chromatography(GC). The following were injected into the GC system: - 1) 1% sample solution in acetone 2) a 500 times dilution of item 1) The retention time of the main peak in the diluted sample solution 2) shifted by ~ 2min.
  96. chemistry

    If a student added 42.6 grams of sodium sulfite to 780.4 grams of water and determined that 3.40 grams of the new solution occupied 3.20ml, what is the weight percent, molality, and molarity of the solution produced?
  97. Chemistry: Check my answers please!

    How would each of the following affect the Cr(VI) concentration determined in this experiment? Justify the answers with an explanation. In the experiment, absorption spectroscopy was used to obtain the concentration of Cr(VI) ions. 1) A student adds more
  98. Chemistry check

    First, percent error can be negative, correct? Because in my lab I got -32%. Here are my questions that I need checked: 1. List possible manipulation errors that might contribute to the following errors in results: 1) obtaining a significantly larger
  99. CHEM 136

    A sample of 25.00 mL of 0.100 M HNO2(in a flask) is titrated with 0.150 M of NaOH solution at 25 degrees. 1) calculate the volume(Ve) of the NaOH solution needed to completely neutralize the acid in the flask. 2)calculate the pH for (a)the initial acid
  100. Physic

    A bar has a constant cross sectional area A. The bar is devided in 2 segments segment 1 (1/3 of the bar) and segment 2 (2/3 of the bar). Segment 1 is made of a material with mass density ρ and Young's modulus E. Segment 2 is made of a different