1. Math

    Reduce the following radical to simplest terms. Enter as " b*(c)^(1/n) " without the quotations. 16 cube root?

    asked by Daniel L on January 27, 2012
  2. math

    Find three consecutive intergers whose product is 33 larger than the cube of the smallest integer.

    asked by Josh on March 6, 2013
  3. physics

    The mass of an iron cube having an edge length 1.8 cm is 70 g. Find itd density.

    asked by Naeem on April 2, 2014
  4. Math

    You have cards numbered 1-10 and a number cube what are the odds of getting two prime numbers? The book says 1\5 but how do they get it.

    asked by Amy on March 27, 2014
  5. algebra

    find three consecutive integers whose product is 33 larger than the cube of the smallest integer

    asked by stacy on September 26, 2015
  6. Chmistry

    What is the volume of a cube that has the following measurements (length 20.0 cm, width 152 mm, height 0.458 m)

    asked by keisha on September 10, 2014
  7. MATHS

    PLEASE HELP! I GUESS IT'S,C,Find the maximum and minimum values of the function 3x'square-2x'cube.[A=3,0] [B=2,0][C=1,0]

    asked by ABRAHAMLINKONG on October 2, 2016
  8. Geometry/Math

    Calculate the volume to the nearest tenth of a 6.3-m cube with a hole 2 m in diameter drilled through it. Use 3.14 for pi.

    asked by Lex on May 21, 2012
  9. Math

    If the addition of 2,000 joules of heat to 10 kilograms of a substance raises it's temperature 2 degrees,the specific heat of the substance is. a. 0.01j/kg degrees. b. 0.2j/kg degrees. c. 50 j/kg degrees d. 100 j/kg degrees e. 200j j/kg degrees

    asked by Troy on August 19, 2011
  10. PHYSICS

    The initial temperature of a bomb calorimeter is 28.50°C. When a chemist carries out a reaction in this calorimeter, its temperature decreases to 27.45°C. If the calorimeter has a mass of 1.400 kg and a specific heat of 3.52 J/(gi°C), how much heat is

    asked by Caleb on April 21, 2016
  11. science

    how many kilojoules of heat must be transferred to a 480 g aluminum pizza pan to raise its temperature from 22 degree c to 234 degree c? The specific heat of aluminum in this temperature range is 0.97 J/g degree C.

    asked by Justin on October 28, 2011
  12. Chemistry

    The initial temperature of a bomb calorimeter is 28.50°C. When a chemist carries out a reaction in this calorimeter, its temperature decreases to 27.45°C. If the calorimeter has a mass of 1.400 kg and a specific heat of 3.52 J/(g°C), how much heat is

    asked by Timmy on July 8, 2013
  13. math

    Study the ways of raising a loan to buy a car or a house. You are required to visit personally two banks at least and ask for the documents required by the bank and the whole process of raising a loan. Describe the whole process in written on project

    asked by Anonymous on July 6, 2017
  14. math

    Study the ways of raising a loan to buy a car or a house. You are required to visit personally two banks at least and ask for the documents required by the bank and the whole process of raising a loan. Describe the whole process in written on project

    asked by rogin on July 5, 2017
  15. calculus

    The force F (in Newtons) required to move a box of mass m kg in motion by pulling on an attached rope is F(x) = f m g/(cos(x))+ f (sin(x)) where x is the angle between the rope and the horizontal, f is the coefficient of static friction and g = 9.8 m/s^2.

    asked by nate on November 14, 2011
  16. math

    The force F (in Newtons) required to move a box of mass m kg in motion by pulling on an attached rope is F(x) = f m g/(cos(x))+ f (sin(x)) where x is the angle between the rope and the horizontal, f is the coefficient of static friction and g = 9.8 m/s^2.

    asked by ali on November 17, 2011
  17. Chemistry

    How many milliliters of 0.710 M HCl are required to react with 47.80 grams of CaCO3 ? Given the balanced reaction equation: 6 FeCl2(aq) + K2Cr2O7(aq) + 14 HCl(aq) 6 FeCl3(aq) + 2 CrCl3(aq) + 2 KCl(aq) + 7 H2O(l) How many moles of FeCl2(aq) are required to

    asked by Lena on November 28, 2010
  18. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each

    asked by Justin on July 26, 2013
  19. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each

    asked by Justin on July 28, 2013
  20. statistics/probability

    how many green elements are required to make a legitimate probability distribution if there is a total of 50 elements in this sample? x red blue orange brown green p(x) 0.10 0.10 0.10 0.20 ? * i am not sure but i don't think that any green elements are

    asked by mary- please check calculations. on October 23, 2010
  21. Chemistry

    I have to solve this combustion problem using Dimensional Analysis and molar heat: 2 C2H6 +7O2 yields 4 CO2 + 6H2O + 3120 kJ The question is to discover how much heat is produced along with 8 moles of water in this reaction. My problem is that I have no

    asked by Narasaq on June 3, 2009
  22. Physics Heat

    1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her conversation.If the water was initially at 15℃, how much heat must have been gained for all of it to turn into a water vapor? 2)By January,

    asked by Isis on March 20, 2013
  23. physics

    120 grams of an unknown metal at a temperature of 95 degrees celcuius is poured into 140 grams of aluminum calorimeter containing 220 grams of water. If the inital temperature of the water and calorimeter was 15 degree celcuius and the final temperature

    asked by christoper allen on December 21, 2014
  24. chemistry

    if heat of dissolution dissolution of NaCl=1700K.J/mole find heat of dissolution 11.7gm of NaCl in water

    asked by habiba on April 8, 2012
  25. Chem

    742.5 J of energy is used to heat an unknown mass of aluminum from 10° C to 65.0° C. The specific heat capacity of aluminum = 0.90 J/(g·°C). What is the mass of the aluminum?

    asked by Summer on March 14, 2018
  26. chemistry

    The heat of combustion for 1 mole of carbon to carbon dioxide is -410 kJ. How many kJ of heat would be liberated from the complete combustion of 60.0 g of carbon?

    asked by Simon on November 26, 2017
  27. Physics

    A 1400-kg car rounds a curve of 57-m banked at an angle of 14 degrees. If the car is traveling at 98-km/h (27-m/s), will a friction force be required? If so in what direction? How much friction force will be required?

    asked by Mike on June 14, 2012
  28. engineering science

    A horizontal force of 230B is required to pull a trolley 39 m, at a constant speed across a horizontal surface in 40 sec.1 the work done 2. The speed of the trolley. 3. Power required

    asked by busy nhlapo on June 23, 2016
  29. physics

    an ice skater spins about a vertical axis at an angular speed of 15 rad/s when her arms are outstreched . she then quickly pulls her arms into her sides in a very small time interval so that the frictional force due to ice are negligible.her initial moment

    asked by ashely on February 11, 2012
  30. Math

    To make 4 1/2 gallons of ice cream, it takes 6 3/10 gallons of milk. How many gallons of milk does it take to make one gallon of ice cream?

    asked by Angel on February 28, 2015
  31. Chemistry

    A 2% solution of Hydrochloric acid is required for a procedure. A 5% solution is availabe. How much of the 5% solution will be required to make 1 L of solution?

    asked by Jessi on April 14, 2009
  32. Applied Programming

    APPLIED PROGRAMMING (APR520S) ASSIGNMENT 1 Problem Solving Tools Total Marks: 50 Marks Due: Friday 22 August 2014 Suppose we want to construct a C/C++ program that can be used to calculate the area or the volume for a range of 2-D and 3-D shapes

    asked by Pineas on August 19, 2014
  33. Chemistry

    This is a lab I have, but have no clue what to do. Please do out the steps so i can understand. Reactions and Data: NaOH(s)--> Na1+(aq)+ OH1-(aq) (Heat of solution of NaOH) This reaction involves adding solid NaOH to water and watching the temperature

    asked by Carrie on December 31, 2011
  34. Mrs.Sue Please help me

    Hi mrs. sue! I cant figure out the answer please help! Which of the following explains how water causes rocks to weather? (1 point) Water can melt rock material. Water freezes in the cracks and expands, causing breaks. Water reacts with the rock and

    asked by Katter on April 19, 2013
  35. English

    This is a chemistry lab report, but I was wondering if someone could edit the grammar and look at the sentence structure, etc. I know it's really long and boring, but even if you just look over a bit of it, I would really appreciate it. And I'm assuming

    asked by a Canadian on February 21, 2013
  36. science

    12. The specific heat of copper is 0.385 J/g • °C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of copper from 7°C to 29°C? (1 point)Q = 0.385 J/g • °C x (29°C – 7°C) Q = 0.75 g x 0.385

    asked by miki on March 31, 2012
  37. biochem

    Two samples of double-stranded DNA have been prepared. Nucleotide analysis reveals that sample 1 is found to be 21% A, while sample 2 is 26% G. Knowing this, which of the following statements is true? Sample 1 has a higher AT content than Sample 2. Sample

    asked by Kate on April 26, 2017
  38. ap chem

    an unknown gaseous hydrocarbon reacts with oxygen to form CO2 and H2O, DETERMINE HEAT OF FORMATION FOR THE HYDROCARBON. the density of the mixture of CO2 and H2O at 1 atm and 200 degree celsius is 0.751g /L and heat of reaction is equal to -2044.5 KJ /MOL

    asked by Rita on October 11, 2014
  39. Physics

    A 95 gram piece of metal is heated to 98°C and placed into 200mL of water insulated at 20°C. If the equilibrium temperature is 27.20, find: The heat gained by the water. calories The specific heat of the metal. cal/(g°C) Hint: 1 mL water has a mass of 1

    asked by Anna on July 9, 2016
  40. Physics

    A naked person (e=0.75) with a surface area 2.00 square meters and a skin temperature of 34 degrees Celsius is in sauna at 90 degrees Celsius. If he stays in the sauna for 30 minutes, (a) How much heat does the perspn radiates? (b) How much heat does he

    asked by Michelle on November 19, 2014
  41. math Study guide

    I need help. I got all of these questions out of 50 wrong. 6-10 were not given. 1. Which of the following is an example of independent events? A-rolling a number cube and flipping a coin B-drawing marbles from a bag without replacement after each draw

    asked by Anonymous on June 5, 2014
  42. Accounting

    Solar Company has 600,000 shares of $75 par common stock outstanding. On February 13, Solar declared a 3% stock dividend to be issued April 30 to stockholders of record on March 14. The market price of the stock was $90 per share on February 13. Journalize

    asked by Ant on June 15, 2013
  43. Chem

    1) A 15.0 g sample of nickel metal is heated to 100.0 C and dropped into 55.0 g of water, initially at 23.0 C. Calculate the final temperature of the nickel and the water, if the specific heat capacity of nickel is 0.444 j / g x C. 2) In a coffee-cup

    asked by Kim on November 11, 2008
  44. chemistry

    At 298 K, 1.35 mol BrCl(g) is introduced into a 12.0 L vessel, and equilibrium is established in the reaction. BrCl(g)-->0.5Br2(g) + 0.5Cl2(g) Calculate the amount of BrCl(g) present when equilibrium is established.(Use delta G[Br2(g)]=3.11kJ/mol and delta

    asked by ian on March 24, 2012
  45. chemistry

    If 100. g of iron at 100.0 C is placed in 200. g of water at 20.0 C in an insulated container, what will the temp, C, of the iron and the water ( C value is 4.18) when both are at the same temp? The specific heat of iron is 0.444 KJ/Kg C ---- steps would

    asked by Lily on September 15, 2006
  46. PHYSICS

    Identify the following gas compression descriptions as adiabatic, isothermal or isobaric. a. As the gas compresses, the internal energy ÄU, decreases when the temperature decreases; the work done on the gas is greater than the heat removed from the gas:

    asked by GRISSELL on March 3, 2012
  47. slappy science

    Heat energy does not always cause a change in temperature of a substance. Heat energy can be stored. Stored energy is called ______. Food contains stored enregy

    asked by sam on April 22, 2008
  48. science

    #1 which electromagnetic waves have the longest wavelengths a:radio** b:infrared c:gamma B:ultraviolet #2 what process describes the transfer of heat through matter by molecular activity a:conduction b:convection** c:radiation d:evaporation #3 The heating

    asked by help me please on April 16, 2018
  49. Algebra

    The time required for a trip 108 miles downstream on a steamer is 3 hours less than the time required for the upstream trip. A boat whose rate is 6 miles per hour less than that of the steamer required 9 hours more for the upstream trip than for the

    asked by Summer on April 11, 2014
  50. Math

    Meiling and Jackie are playing a game of chance with a six-sided number cube. The sides of the cube are numbered 1 to 6. Meiling scores a point each time she rolls a number greater than 4. Which would give Jackie an ,begin emphasis,equally likely,end

    asked by Kawaii desu on October 16, 2017
  51. science

    A microwave oven has a power requirement of 1248 W. A frozen dinner requires 6.9 min to heat on full power. (a) How much electrical energy (in kWh) is used? (b) If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

    asked by Renee on February 10, 2011
  52. Physics

    In sunlight, which becomes warmer: reading glasses or dark sunglasses? i said reading glasses because the UV waves and infrared resonate on the glass, generating more heat. and dark sunglasses just absorb the heat and convert it into internal energy is

    asked by luu on February 14, 2008
  53. physics

    When a 310-g piece of iron at 180∘C is placed in a 95-g aluminum calorimeter cup containing 250 g of liquid at 10∘C, the final temperature is observed to be 32∘C. The value of specific heat for iron is 450 J/kg⋅C∘, and for aluminum is 900

    asked by Anonymous on June 4, 2014
  54. chemistry

    The following information is given for ether, C2H5OC2H5, at 1atm: boiling point = 34.6 °C Hvap(34.6 °C) = 26.5 kJ/mol specific heat liquid = 2.32 J/g°C At a pressure of 1 atm, kJ of heat are needed to vaporize a 41.0 g sample of liquid ether at its

    asked by LaMetria on November 29, 2016
  55. Physics

    Body A has twice the mass and three times the specific heat of body B. They are supplied with equal amounts of heat. Body A experiences a temperature change ΔT. What change in temperature is experienced by body B? Question 2 options: A) ΔT B) 3ΔT/2 C)

    asked by Skylar on August 15, 2011
  56. science

    A microwave oven has a power requirement of 1235 W. A frozen dinner requires 6.0 min to heat on full power. (a) How much electrical energy (in kWh) is used? b) If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

    asked by ashley on September 3, 2010
  57. Chemistry

    At constant volume the heat of combustion of a particular compound is -3378.0 kj/mol.When 1.563 g of this compound ( molar mass of 126.88 g/mol )was burned temp rose 6.991 C. What's the heat capacity of the calorimeter(calorimeter is constant)?

    asked by Raul on March 22, 2013
  58. physics

    Einstein saud that the amount of energy in matter is given by E=mC^2 where if m is in kilograms and c=3x10^8 which is the speed of light. The energy is E is given in Joules. Assuming that is takes an average of 1x10^11 Joules to heat your house during the

    asked by sarah on February 22, 2012
  59. Chemistry

    Chlorofluocarbon was once used in air conditiones as the heat transfer liquid its normal boiling point is -30 degrees C and its enthalpy of vaporization is 16J/g. The gas and the liquid have specific heat capacities of 0.61 J/g8C and 0.97 J/g*C,

    asked by 19 on November 21, 2011
  60. chemistry

    Substances A and B with the same mass and the same initial temperature absorb the same amount of heat energy. The final temperature of A is higher than the final temperature of B. Which substance would have the higher specific heat? Why?

    asked by Kelly on September 24, 2010
  61. Physics

    What mass of water requires 1.89X10^8 joules of energy to heat from 15 degrees Celsius to 75 degree celsius? The specific heat of water is 4190 J/kg degree celsius

    asked by C-Los on January 28, 2015
  62. chemistry

    15. How much heat energy (in kJ) is evolved by a reaction in a bomb calorimeter in which the temperature of the bomb and water increased from 19.5 to 22.83 ºC? The bomb has a heat capacity of 650 J/C; the calorimeter contains 320 g of water.

    asked by nona on March 26, 2015
  63. Physics / Heat Transfer

    How much heat must be removed from a 200 g block of copper to lower its temperature from 302 oF to 68 oF? Specific heat of copper: c = 0.092 kcal/(kg K) a. 2.4 kcal b. 2400 kcal c. 18.4 kcal d. 12 kcal e. 26 kcal

    asked by John on January 30, 2013
  64. Chemistry

    When methane are burned in a bomb calorimeter the temperature rises from 21.00℃ to 25.18℃. The heat capacity of methane is 3.754x10^3 J/℃. The amount of heat, q (in kJ) absorbed by the calorimeter apparatus is: Correct Answer: 18.68 kJ My Work and my

    asked by Anonymous on October 4, 2016
  65. Gen. Chem

    Could you help me with this homework please.. 105.0 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 17.1oC. After 288.2 g of an unknown compound at 77.0oC is added, the equilibrium T is 25.1oC. What is

    asked by carl on March 25, 2013
  66. Chemistry

    A Power plant rated at 800 MegaWatts generates steam at 585 K and discards heat to a river at 295 K. If thermal efficiency of plant is 70% of maximum value, how much heat is discarded to river at rated power? Please help with steps on how to solve this

    asked by Levi on September 28, 2014
  67. chemistry

    The following information is given for ether, C2H5OC2H5, at 1atm: boiling point = 34.6 °C Hvap(34.6 °C) = 26.5 kJ/mol specific heat liquid = 2.32 J/g°C At a pressure of 1 atm,__kJ of heat are needed to vaporize a 25.1 g sample of

    asked by Anonymous on March 24, 2017
  68. chemistry help

    1. Calculate the energy change (q) of the surroundings (water) using the enthalpy equation qwater = m × c × ΔT. We can assume that the specific heat capacity of water is 4.18 J / (g × °C) and the density of water is 1.00 g/mL. Show ALL your work. The

    asked by MadiB PLEASE HELP :( on April 7, 2013
  69. chemistry

    2. Sulfuric acid comes from the oxidation of sulfur. The stages of the reactions are given below: S + O2 --> SO2 ∆H= -296.8 kj SO2 + 1/2 O2 --> SO3 ∆H= -98.9 kj SO3 + H2O --> H2SO4 ∆H= -130.0 kj The typical plant produces 750 tons of H2SO4 per day.

    asked by Christina on November 10, 2012
  70. english

    Should the sentence be - The continual heat made us thirsty. or The continuous heat made us thirsty.

    asked by Sam on May 13, 2008
  71. Math

    Michael Reeves, an ice cream vendor, pays $17.50 for a five-gallon container of premium ice cream. From this quantity he sells 80 scoops at $0.90 per scoop. If he sold smaller scoops, he could sell 98 scoops from the same container; however, he could

    asked by Nena on June 1, 2013
  72. To: Bobpursely

    You helped me with my observations yesterday, but I need help with my questions as well. I tried to answer as many as I could by myself, but I'm having difficulties understanding some. Pointing me towards the right direction would be helpful, thanks.

    asked by Sara on April 7, 2010
  73. Math

    The area of one of the faces of the cube below is x^2+2x+1 cm^2. Find an expression in mixed radical form for the length of the interior design. My Work: Step 1: a^2 + b^2 = c^2 =(x-1)(x-1) x-1 equals to all the sides of the cube Step 2: a^2 + b^2 = c^2

    asked by Angel on November 16, 2016
  74. PHYSICS NEED HELP FAST

    A power plant has a power output of 1055 MW and operates with an efficiency of 33.0 percent. Excess energy is carried away as heat from the plant to a nearby river that has a flow rate of 1.1 x 10^6 kg/s. How much energy is transferred as heat to the river

    asked by ricki on March 2, 2011
  75. Physics

    If you want to heat 100 kg of water at 20 ° C for your bath, calculate the amount of heat in the water. Then demonstrate that this is equivalent to 8360 kilojoules. 20° C x 100 kg = 2000000 cal I'm unsure what to do after converting it to calories as to

    asked by I REALLY NEED HELP! on February 8, 2018
  76. chemistry

    The specific heat capacity of gold at 25°C is 1.290×10-1 J/g/K. For a 5.25×102 g sample of gold, how much will the temperature increase if 6.908×102 J of energy is put into the system? (Assume that the heat capacity is constant over this temperature

    asked by korko on September 25, 2014
  77. chemistry

    A 37.0 g mass of a metal was heated to 100°C and then plunged into 74 g of water at 24.0°C. The temperature of the resulting mixture became 28.0°C. (a) How many joules did the water absorb? (b) How many joules did the metal lose? (c) What is the heat

    asked by Kelsey on April 27, 2014
  78. Physics

    What rise in temperature occurs when 10g of steam at 100 degree celcius are passed into 400g of water at 10 degrees celcius taking the specific heat capacity of water to be 4.2J/gK and specific latent heat of vapourisation of steam to be 2268J/g

    asked by Sarah on January 16, 2011
  79. Chemistry

    A coffee cup calorimeter contains 25.0 grams water at 23.8 C A 5.00g sample of an unknown metal at an initial temperature of 78.3 C was dropped into the calorimeter. The final temperature of mixture was 46.3 C. Calculate the specific heat of the metal. The

    asked by J on March 19, 2013
  80. Chemistry - Thermodynamics

    The heat capacity of a bomb calorimeter is 87.5 kJ/K (this value is for the total heat capacity including that of the water jacket around the reaction chamber). If 67.2g of CH4 (g), is combusted under such reaction conditions, what will be the increase in

    asked by Anne on December 12, 2007
  81. chemistry

    When 25.0 mL of 1.0 M H2SO4 is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming the specific heat of the solution is 4.18 J/(g·°C), that its density is 1.00 g/mL, and

    asked by nobody on March 14, 2013
  82. Physics

    A thermos bottle contains 250 g of coffee at 88 0C. You then decide to add 27 g of milk at 5 0C. What is the equilibrium temperature of the mixture? Assume no heat is loss to the thermos bottle and that the specific heat of water, coffee and milk is about

    asked by Anonymous on June 7, 2016
  83. 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

    asked by Joe on November 10, 2007
  84. scienc

    Resources: Ch. 5 of Visualizing Environmental Science and Appendix C „h Due Date: Day 2 [Main forum] „h Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. „h Post your response to the following: Identify the fruit or

    asked by Anonymous on March 14, 2010
  85. College Physics

    100 grams of molten lead (600oC) is used to make musket balls. If the lead shot is allowed to cool to room temperature (21oC), what is the change in entropy (in J/K) of the lead? (For the specific heat of molten and solid lead use 1.29 J/g oC; the latent

    asked by Chris on June 12, 2011
  86. Chemistry

    1. Write the correct formulas for the following: A. A compound composed of melt X which has a +2 charge and nonment Y which has a -3 charge (write it as “XY” including the correct subscripts as necessary.) My answer: by adding or taking away a charge

    asked by Ummm on December 13, 2017
  87. MATH

    Find a positive integer m such that 1/2m is a perfect square and 1/3m is a perfect cube. Can you find a positive integer n for which 1/2n is a perfect square, 1/3n is a perfect cube and 1/5n is a perfect fifth power?

    asked by Sunny on April 2, 2010
  88. math

    Find a positive integer m such that 1 2m is a perfect square and 1 3m is a perfect cube. Can you find a positive integer n for which 1 2n is a perfect square, 1 3n is a perfect cube and 1 5n is a perfect fifth power?

    asked by groove on April 1, 2010
  89. Physics

    A mouse of mass 5.0 g spots the corner of a peanut butter sandwich of mass 8.0 g left on an ice rink after a game. Excited, the mouse runs out onto the ice, but immediately begins to slide. The mouse reaches the peanut butter sandwich and sinks its teeth

    asked by Anonymous on December 8, 2011
  90. Chem

    What is the volume of 0.10mole of a gas at STP 1 mol occupies 22.4 L at STP. so .10 of a mole would be 2.24L of a mole of gas. How can I construct a cube that has that same volume. Right. 2.24L is 2.24 x 1000 cc/L = 2,240 cc = 2,240 cubic centimeters. You

    asked by ezzy on February 7, 2007
  91. chemistry

    Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium Cl, or common table salt. If 1.00 g of sodium reacts with 1.54 g of chlorine, 2.54 g of sodium chloride is formed and 17.9 kJ of heat is released. How much sodium and

    asked by Ashley on September 4, 2012
  92. penn foster

    Dr. Bob applies for medical staff privileges at General Hospital. The hospital administrator? A. is not required to look into Dr. Bob’s background. B. is required to query the National Practitioner Data Bank. C. is required to query the Data Bank unless

    asked by kristin on January 25, 2011
  93. Finance

    Bond value and time--Constant required returns Pecos Manufacturing has just issued a 15-year, 12% coupon interest rate, $1,000-par bond that pays interest annually. The required return is currently 14%, and the company is certain it will remain at 14%

    asked by Mary on November 7, 2011
  94. Geometry and using Pi

    How big was the Flying Saucer? In the 1951 science fiction movie classic The Thing from Another World, a group of scientists and soldiers discover a recently crashed alien spaceship buried under a few feet of ice near the North Pole. The party spreads out

    asked by Archimedies on March 13, 2018
  95. Chemistry

    How much energy is needed as heat at a pressure of 1 ATM when 78g of liquid ethanol (C2H5-OH) at 298 K is converted to solid enthalpy at 159 K (FP). The molar enthalpy fusion is -277.6 KJ/Mole, and heat capacity of liquid ethanol is 112.3 J/mole k.

    asked by David Marcel on September 13, 2016
  96. heat transfer

    a. Steam at 230oC flows through a steel pipe ( = 15/. ) whose inner and outer diameters are 9 cm and 10 cm, respectively in an environment at 15oC. The pipe is insulated with 5 cm thick fiberglass ( = 0.035/. ). The given heat transfer coefficients

    asked by Anonymous on March 22, 2015
  97. chemistry

    The amount of 2.00 mol of a solid ionic compound was dissolved in 225 mL of water in an insulated container. The initial temp of water was 20 deg. C and the final temp. was 47.8 deg C. What is the delta heat Dissolution? Assume the heat absorbed by the

    asked by carla on March 27, 2011
  98. Physics

    My problem is as follows "A 3 kg brick is dropped from a height of 1.0 m onto a nail which is vertically stuck in a plank of wood. If the nail doesn't move in much, how much heat is produced in the system when the brick hits and sticks onto the top of the

    asked by Brigid on April 16, 2009
  99. Chemistry

    Need some help with these 1. A 15.0 carat (3.00g) diamond is found to be 99.9% carbon. What mass of carbon is in this diamond? 2. To make stainless steel, a metallurgist might “smelt” [melt and blend] together a 1250g iron “ingot” [bar], 1.500g of

    asked by Mr. Anonymous on March 27, 2019
  100. chemistry

    I'm not sure how to solve this: If 125 cal of heat is applied to a 60.0-g piece of copper at 20.0∘C , what will the final temperature be? The specific heat of copper is 0.0920 cal/(g⋅∘C). Express the final temperature numerically in degrees Celsius

    asked by mysterychicken on January 29, 2014