# A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.00 gallons, what is the boiling point of the solution?

42,818 results, page 44
1. ## Physics

Two copper cylinders, immersed in a water tank at 46.3°C contain helium and nitrogen, respectively. The helium-filled cylinder has a volume twice as large as the nitrogen-filled cylinder. a) Calculate the average kinetic energy of a helium molecule at

asked by Lyra on January 27, 2014
2. ## Chemistry

Oganic solvents are not suited to be heated with one of the followings: Oil Bath Electric hot plate Water bath Bunsen burner flame 2 Which of the following is not an inflammable liquid ? Water Ethanol Kerosine Benzene 3 These are some safety precausions

asked by Wilson on October 23, 2015
3. ## Chemistry

If you could help me it would be greatly appreciated, Thanx Question 1 In a titration, a 20mL sampl of NaOh(aq) was neutralized by 14.9 mL of 0.13 mol/L H2SO4(aq). The concentration of the base is A. 8.7 mol/L B. 0.35 mol/L C. 0.19 mol/L D. 0.048 mol/L

asked by Brittany Rusk on September 22, 2006
4. ## science

A diesel engine's piston compress 16cm3rd of fuel air mixture into 1cm3 The pressure changes from a atmosphere to 48 atmospheres if the initial temp. of the gas was 305k What was the final temerature

asked by allison on August 4, 2009
5. ## physics

a car with a mass of 1.50 x 10^3 kg starts from rest and acceleration to a speed of 18.0 m/s in 12.0 s. Assume that the force of resistance remains constant at 400.0 N during this time. What is the average power developed by the cars engine

asked by sharon on November 10, 2016
6. ## math

What is the tip speed (ft/min) of a 21 inch long rotary lawn mower blade that is connected to the output shaft of an engine operating at 3400 rpm? What are the steps to figure this out?

asked by Sushmitha on March 29, 2012

find the temperature of the hot reservoir of a carnot engine that has QH=1575j that does work on a 200kg crate, caussing it to go from rest to a velocity of 2.35m/s along the horizontal frictionless surface. Tc=100K

asked by Claire on June 26, 2014
8. ## physics

Engine oil (η = 0.20 Pa⋅s) passes through a fine 2.60-mm-diameter tube that is 8.60 cm long. What pressure difference is needed to maintain a flow rate of 7.8 mL/min ? So what i did was (7.8Ee-3 /60) = π P (1.3e-3) ^4 /(8* 0.086*0.2) I get 1.99E5 but

asked by arshi on November 26, 2015
9. ## science

what can i do to find out about rosalind franklin? You could Google her name, preferably with parentheses around it, and read some of the articles that will be found by that search engine. At the top of the list will be

asked by shannon on July 27, 2007
10. ## physics

A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (b) the average power developed by the engine

asked by Anonymous on October 12, 2012
11. ## History

What is Jean Pierre Blanchard most known for in history? 1) *invented the steam engine 2) *first man to swim the English channel 3) *first successful hot air balloon flight 4) *discovered bacteria

12. ## physics

a) 2.0 kg of molten copper at its melting point of 1083 ºC (the copper is 100% liquid) is poured into a mold in a cooling water bath at 20 ºC. What mass of water is needed to bring the solidified copper and water to an equilibrium temperature of 30 ºC,

asked by Eric on December 12, 2006
13. ## math

A rectangular box is built by cutting out square corners from a 9" by 11" piece of cardboard, then folding the resulting flaps up to form the height. Let x represent the sides of the square corners being cut out. Express the volume of the box as a function

asked by Keonn'a on October 26, 2018
14. ## Chemistry

I had to perform an experiment for rate of reaction. I have to calculate the concentration of Na2S2O3 in the reaction solutions based on the volume used in each reaction flask and the total volume calculated. There were five flasks used and for all 5 of

asked by Hannah on February 25, 2012
15. ## chemistry

At 650 degree C and a pressure of 690mm HG, the 0.927g sample has a volume of 194cm3. How do I calculate the volume at the same temp but at a pressure of 760mm Hg? Also, how do I calculate the volume at the same pressure but at a temp of 0 degree C? Thanks

asked by sarah on February 26, 2007
16. ## Algebra

A man drove his automobile to New York, a distance of 550 miles, at a certain average rate. He returned from New York at the rate of 11 mph more. The entire trip required 22.5 hours. What were his rates returning and going?

asked by Summer on April 15, 2014
17. ## Chemistry

What volume of 15 degree celsius water must be added to a 1.2KG piece of stainless steel at 85 degree celsius so that the final temperature is 35 degree celsius. assume the container in which the mixing takes place is perfectly insulated.

asked by john on June 10, 2012
18. ## Math

An automobile uses 8 gallons in traveling 120 miles at that rate how many gallons will be used in 360 miles?

19. ## Calculus

Write the integral in one variable to find the volume of the solid obtained by rotating the first-quadrant region bounded by y = 0.5x^2 and y = x about the line x = 7. I have to use the volume by disks method, but I'm confused about how to set it up and

asked by Anonymous on May 11, 2018
20. ## Physics

Calculate the change of volume that occure when a steel bearing with an initial volume of 1.8cm^3 is heated from 20°C to 80°C. Tried to use the formula DeltaV/Vinitial=Beta×DeltaT but kept getting the wrong answer though my maths could be off?

asked by Amelia on December 5, 2017
21. ## Science

A balloon has a volume of 1000cc at room temperature (27oC). I leave it in my parked car, which the sun heats up to 42oC. What is its new volume? Answer A) 950 cc. B) 1000 cc. C) 1050 cc. D) 1500 cc.

asked by Anonymous on September 26, 2011
22. ## chemistry

please help Calculate the volume in mm3 of a slice of potato if it is cut into the shape of a rectangular prism (volume = length x width x height), which is 2.24 cm long, 0.84cm wide and 2.88cm high

asked by linda on April 5, 2012
23. ## Algebra 2

Damon thank you for the previous help. A geyser sends a blast of boiling water high into the air. During the eruption, the height (h) (in feet) of the water (t)seconds after being forced out from the ground could be modeled by h = -16t*t + 70t. The last

24. ## science

a u-tube is partially filled with water.oil which does not mix with water is next poured into one side until water rises by 2.5cm on the other side.if the density of oil be 0.8 ,the oil level will stand higher than the water level by how much?

asked by abuobaida johar on May 17, 2012
25. ## physics

(a) Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 3.76 cubic meter of water in kg. (b) Suppose that it takes 10.4 hours to drain a container of 59.1 m^3 of water. What is the “mass flow rate,” in kg/s, of

asked by sagara on January 27, 2011
26. ## Ap Biology

In the case of water, solid water is less dense then liquid water. What is happening at the molecular level? a. Molecules move faster in ice than water. b. Hydrogen bonds break more easily in ice. c. Hydrogen bonds break more easily in water. d. Molecules

asked by Carol on May 24, 2017
27. ## Chemistry

A 5.80 g sample of SiH4 and an excess of oxygen were placed in a reaction container surrounded by 3.40 kg of water. The initial temperature of the water was 14.10°C. At the end of the reaction, the temperature of the water was 48.90°C. Assume the heat

asked by Megan on March 8, 2010
28. ## physics

The amount of heat Q needed to turn a mass m of room temperature T_1 water into steam at 100degrees C T_2 can be found using the specific heat c of water and the heat of vaporization H_v of water at 1 atmosphere of pressure. Suppose that a commercial

asked by Anonymous on November 28, 2008
29. ## Geometry

Which is greater, the total volume of three spheres, each of which has a diameter 5 in., the volume of one sphere that has a diameter 8 in., or the volume of a hemisphere with a diameter of 10 in.? a) The volume of three spheres, each with a diameter of 5

asked by SkatingDJ on May 2, 2016
30. ## physics

2.0kg of water at 0 degree celsius is to be changed into ice at this temperature. The same mass of water now at 100 degree celsius is to be changed into steam at this temperature. specific latent heat of fusion of water= 3.34 x10^5 J kg^-1. specific latent

asked by Anonymous on February 26, 2018
31. ## Chemistry

A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting

asked by Patrick on January 16, 2011
32. ## Chemistry

A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting

asked by Patrick on January 16, 2011
33. ## chemistry

use the molar volume of a gas to solve the following at STP: a. the number of moles of O2 in 44.8 L O2 gas. b. the number of moles of CO2 in 4.00L CO2 gas. c. the volume(L) of 6.40g O2. d. the volume(mL) occupied by 50.0g neon.

asked by Jetta on June 27, 2010
34. ## chem

A gas at a pressure of 2.0 atm is contained in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature. (Assume that the volume of the container changes with the volume of the gas.)

asked by keyisha on November 10, 2011
35. ## Chemistry

Which properties of a gas increase linearly as the temperature is increased? A. Volume and density B. Volume and pressure C. Amount of gas and density D. Amount of gas and volume I believe the answer is A or D But I am pretty sure the answer is a

asked by Cortney on March 24, 2015
36. ## chemistry

Which properties of a gas increase linearly as the temperature is increased? A. Volume and density B. Volume and pressure C. Amount of gas and density D. Amount of gas and volume I believe the answer is A or D But I am pretty sure the answer is a

asked by Cortney on March 24, 2015
37. ## Chemistry

Is the following a physical or chemical separations: salt water --> water+ sodium chloride Do you change the composition of the water? Do you change the composition of the salt. I can't say which because you don't tell me how you separated them. For

asked by George on September 10, 2006
38. ## chemistry

Consider a system consisting of a cylinder with a movable piston containing 10^6 gas molecules at 298K at a volume of 1L. Consider the following descriptions of this system: 1. Initial system 2. Starting from the initial system, the volume of the container

asked by CHEM on March 17, 2009
39. ## chemistry

Consider a system consisting of a cylinder with a movable piston containing 10^6 gas molecules at 298K at a volume of 1L. Consider the following descriptions of this system: 1. Initial system 2. Starting from the initial system, the volume of the container

asked by CHEMistry on March 16, 2009
40. ## Math

Nia and Trey both had a sore throat so their mom told them o gargle with warm salt water. -Nia mixed 12 teaspoon salt with 3 cups of water. -Trey mixed 12 teaspoons salt with 112 cups of water. Nia tasted Trey's salt water.She said," I added more salt so I

asked by Jessica on September 3, 2013
41. ## chemistry

1 _____is defined as one-half of the distance between the nuclei of two adjacent metal atoms in the close packed crystal lattice ionic radius metallic radius covalent radius atomic radius 2 Except for rubidium and caesium, all common cations are smaller

asked by mike on April 23, 2012
42. ## chemistry

in the preparation of the standard curve for protein analysis, 50mg BSA(bovine serum albumin) dissolved in water to a final volume of 5ml was used as stock solution.What is the weight of BSA in 0.1ml of stock solution? in 0.2ml?

asked by jen on August 26, 2018
43. ## chemistry

A student wants to determine of an irregularly shaped peice of sodium metal . The student is warned not to use water displacement to find the volume of the peice of sodium . Explain the reason for the warning and pffer a effective solution to the students'

asked by nina on December 6, 2010
44. ## Chemistry 30

Consider the following reaction at equilibrium: 4NH3(g) + 5O2(g) ↔ 4NO(g) + 6H2O(g) In what direction will the following changes force the reaction? a) Addition of O2 b) Reduction of the amount of water vapour c) Increase in the pressure d) Decrease in

45. ## algebra

If the length and width of a rectangle are each multiplied by 3, how would the new area of the rectangle compare with the original area of the same rectangle? I'm not sure about this one-these are my choices:my choice is A but I'm not sure a. the new

asked by Mary on May 15, 2011
46. ## english

what is totalitarianism Similar to Nazism. Go to wikipedia. I CAN"T STRESS THIS ENOUGHT! DON'T USE WIKIPEDIA ANYONE CAN EDIT MEANING THAT THE INFORMATION COULD BE FALSE TRY ANY OTHER SEARCH ENGINE!

asked by heather on September 25, 2006
47. ## Physics

A 1000kg elevator is carrying 10 people at a constant velocity over a distance of 30.0m. Assuming the average mass of a person is 60.0kg, how much is used by the elevator engine?

asked by physics on October 30, 2018
48. ## physics

a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help power= work/time= 1/2 m v^2/8 1/2(1500k)(30)^2 2/8 =168750 is this correct?

asked by TRACY on February 27, 2012
49. ## math

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 x 10−5 (10 to the -5 power) watts/cm2(squared)

asked by leelee kay on June 3, 2014
50. ## Physics

A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. How much useful work was done? Thannnkkks :)

asked by Holly on January 16, 2014
51. ## physics

a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help power= work/time= 1/2 m v^2/8 1/2(1500k)(30)^2 2/8 =168750 is this correct?

asked by TRACY on February 28, 2012
52. ## Math

I = E/R A car has a 12 volt battery. The engine has a resistance of 0.22 ohms. How many amps will be drawn from the battery when the key is turned? I (to the nearest hundredth) = amperes

asked by bob on June 17, 2013
53. ## Physics

An engine rated at 5.0x10^4 watts exerts a constant force of 2.5x10^3 newtons on a vehicle.determine the average speed of the vehicle.

asked by Sam on May 10, 2016
54. ## PHYSICS

A motor car of mass 2000kg accelerates from rest at 3 ms-2 for 4s on a straight road. find the average useful output power of the engine of the car.

asked by S5 on January 6, 2013
55. ## calculus max area

Maximize volume of a pyramid cut from peice of paper. (Problem) A pyramid consists of 4 isosceles triangles around a square base. If this is to be cut and folded out of a single square piece of paper, Maximize the volume. I am not sure where to begin here.

asked by Amy on August 2, 2012
56. ## chemistry

saline solution mass is 53.0 at 4 degrees equal volume of water, same temp had a mass 51.5g what is the density of the saline solution?

asked by kaela on May 15, 2015
57. ## Chemistry

A rock has a mass of 127 g and displaces 32.1 mL of water. What is the density of the rock? density=mass/volume watch units.

asked by Bryan on February 2, 2007
58. ## physics

A wooden raft has 85% of its volume submerged when it is floating down a river with a density of water being 9.90x10^2 kg/m^3. What is the density of the wooden raft?

asked by Anonymous on November 12, 2014
59. ## Calculus 1

Water is leaking out of an inverted conical tank at a rate of 9,500 cm^3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate of

asked by TayB on October 8, 2015
60. ## calc rates

Water is leaking out of an inverted conical tank at a rate of 10600.0 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 14.0 m and the the diameter at the top is 6.0 m. If the water level is rising at

asked by Anonymous on April 12, 2015
61. ## math

Water is leaking out of an inverted conical tank at a rate of 11400 cm^3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8.0m and the the diameter at the top is 3.5m. If the water level is rising at a

asked by shelby on March 25, 2008
62. ## math

Water is leaking out of an inverted conical tank at a rate of 10600.0 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 14.0 m and the the diameter at the top is 6.0 m. If the water level is rising at

asked by Anonymous on April 12, 2015
63. ## Physical Science

1. which of the following should be classified as a suspension? A. soda** B. sand in water C. glass D. milk 2. Which of the following is an of example of a chemical property? A. density B. flammability C. hardness** D. melting point 3. Which state of

asked by Becky on October 20, 2016
64. ## chemistry

In a constant-pressure calorimeter, 55.0 mL of 0.310 M Ba(OH)2 was added to 55.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 22.23 °C to 26.45 °C. If the solution has the same density and specific heat as water,

asked by Haley on November 19, 2014
65. ## CHEM

In a constant-pressure calorimeter, 60.0 mL of 0.340 M Ba(OH)2 was added to 60.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 24.07 °C to 28.70 °C. If the solution has the same density and specific heat as water,

asked by Akle on February 10, 2012
66. ## chemistry

In a constant-pressure calorimeter, 65.0 mL of 0.330 M Ba(OH)2 was added to 65.0 mL of 0.660 M HCl. The reaction caused the temperature of the solution to rise from 21.91 °C to 26.41 °C. If the solution has the same density and specific heat as water,

asked by rock on February 20, 2015
67. ## chemistry

What volume of hydrogen gas at standard temperature and pressure can be collected from the electrolysis of water using a current of 100mA for a period of 3 hours? I know that the answer is 0.125 L but I don't know how to approach the problem. I multiplied

asked by Anon on June 10, 2015
68. ## Chemistry

In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH)2 was added to 60.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 22.19 °C to 26.41 °C. If the solution has the same density and specific heat as water,

asked by Kylee on October 26, 2014
69. ## Chemistry

In a constant-pressure calorimeter, 60.0 mL of 0.320 M Ba(OH)2 was added to 60.0 mL of 0.640 M HCl. The reaction caused the temperature of the solution to rise from 23.24 °C to 27.60 °C. If the solution has the same density and specific heat as water,

asked by Blaire on February 27, 2013
70. ## Chemistry

In a constant-pressure calorimeter, 65.0 mL of 0.330 M Ba(OH)2 was added to 65.0 mL of 0.660 M HCl. The reaction caused the temperature of the solution to rise from 24.28 °C to 28.78 °C. If the solution has the same density and specific heat as water,

asked by Emily on August 2, 2015
71. ## chemstry

In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH)2 was added to 50.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 23.69 °C to 28.32 °C. If the solution has the same density and specific heat as water,

asked by cassie on June 21, 2012
72. ## chemistry

In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH)2 was added to 60.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 23.44 °C to 27.66 °C. If the solution has the same density and specific heat as water,

asked by meg on February 24, 2015
73. ## Chemistry

In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH)2 was added to 50.0 mL of 0.640 M HCl. The reaction caused the temperature of the solution to rise from 21.80 °C to 26.16 °C. If the solution has the same density and specific heat as water,

asked by Jay on January 10, 2015
74. ## Chemistry

2Na + 2H2O------> 2NaOH + H2 H=-386kJ If 5g of sodium is added to 200g of water in an open container: (A) How much heat is absorbed/released int he reaction? (B)What volume in formed at 22C and 102kPa? (C) If boiling point elevation constant is 0.52K molal

asked by David on August 3, 2014
75. ## Chemistry

In a constant-pressure calorimeter, 50.0 mL of 0.320 M Ba(OH)2 was added to 50.0 mL of 0.640 M HCl. The reaction caused the temperature of the solution to rise from 23.47 °C to 27.83 °C. If the solution has the same density and specific heat as water,

asked by Ag10 on November 28, 2012
76. ## Science

In a constant-pressure calorimeter, 70.0 mL of 0.330 M Ba(OH)2 was added to 70.0 mL of 0.660 M HCl. The reaction caused the temperature of the solution to rise from 21.27 °C to 25.77 °C. If the solution has the same density and specific heat as water,

asked by Marika on October 10, 2012
77. ## physics

thanks again to anyone who can possibly help!!!!! i wish i had a book or notes or something about this kind of stuff :( The linear expansion coefficient of glass is 9 x 10^-6 (`C)^-1. An automobile windshield has dimensions of 59 cm by 390 cm. What minimum

asked by elisabeth on February 20, 2010
78. ## College Physics

2 questions: a)Assuming that water has a density of exactly 1 g/cm3 (cubed), find the mass of one cubic meter of water in kilograms. b)Suppose that it takes 10 hours to drain a container of 5700m3 (cubed) of water. What is the "mass flow rate," in

asked by Frank on August 22, 2010
79. ## science

I am still new to physics, so I'm having a rough time. When a 1kg metal pan containing 1kg of cold water is removed from a refrigerator onto a table which absorbs more heat from the room, the pan or the water? I thought it was the water, because I thought

asked by bbragg on October 25, 2013
80. ## Chemistry

Why are the hydrogen bonds of a certain molecule weaker in solution (with water as a solvent) than in a vacuum? I'm supposed to have three reasons, and so far all I can come up with is that the water lowers the activation energy required to form the bond

asked by Sarah on December 14, 2017
81. ## Chemistry

If 226 g of water is contained in a 311 g alu- minum vessel at 11◦C and an additional 92 g of water at 91◦C is poured into the container, what is the final equilibrium temperature of the mixture? The specific heat of aluminum is 900 J/kg · ◦C and of

asked by Eliza on August 26, 2017
82. ## Chemistry

If 226 g of water is contained in a 311 g alu- minum vessel at 11◦C and an additional 92 g of water at 91◦C is poured into the container, what is the final equilibrium temperature of the mixture? The specific heat of aluminum is 900 J/kg · ◦C and of

asked by Eliza on August 26, 2017
83. ## Quick english help

Please check each of my answers from these short stories in "The House On Mango Street". Please correct me if I'm wrong! "Meme Ortiz" 2. What does the fact that Meme and his dog both have two names reveal about the neighborhood? A. People are desperately

asked by Anonymous on January 26, 2015
84. ## Chemistry

Suppose you have two 100-{\rm mL} graduated cylinders. In each cylinder there is 58.5mL of water. You also have two cubes: One is lead, and the other is aluminum. Each cube measures 2.0cm on each side. After you carefully lower each cube into the water of

asked by Wendy on September 8, 2014
85. ## chemistry

Suppose you have two 100-{\rm mL} graduated cylinders. In each cylinder there is 58.5mL of water. You also have two cubes: One is lead, and the other is aluminum. Each cube measures 2.0cm on each side. After you carefully lower each cube into the water of

asked by Jennifer on September 5, 2011
86. ## Factoring Polynomials (need HELP!!!)

Ok, this is pretty long, so bear with me. The problem says: The diagram (not shown here, sorry) shows a cube of metal with a cylinder cut out of it. The formula for the volume of a cylinder is V=pi*r^2*h, where r is the radius and h is the height. The

asked by Emily on January 11, 2007
87. ## math help please !!!

i really neeed help, i have no idea how to answer this question ! i tried everything i know! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high

asked by melissa on May 17, 2011
88. ## Chemistry

How much energy (heat) is required to convert 248 g of water from 0oC to 154oC? Assume that the water begins as a liquid, that the specific heat of water is 4.184 J/g.oC over the entire liquid range, that the specific heat of steam is 1.99 J/g.oC, and the

asked by Jimmy on September 17, 2008
89. ## Chemistry

Suppose you have two 100- graduated cylinders. In each cylinder there is 37.0 of water. You also have two cubes: One is lead, and the other is aluminum. Each cube measures 1.2 on each side.After you carefully lower each cube into the water of its own

asked by Hailey on September 7, 2012
90. ## Chemistry

If 395 grams of water at 21 Celsius absorbs 285kJ of heat from a mountain climbers stove at an elevation where the boiling point of water is 87 Celsius, is this amount of energy sufficient to heat the water to its boiling point? How many kJ are required to

asked by Kay on November 6, 2011
91. ## Chem

How much energy (heat) is required to convert 248 g of water from 0oC to 154oC? Assume that the water begins as a liquid, that the specific heat of water is 4.184 J/g.oC over the entire liquid range, that the specific heat of steam is 1.99 J/g.oC, and the

asked by Dan on February 5, 2012
92. ## Physics

As you know, a cube with each side 4 m in length has a volume of 64 m3. Each side of the cube is now doubled in length. What is the ratio of the new volume to the old volume? Why is this ratio not simply 2? Include a sketch with dimensions.

asked by Coty on December 8, 2010
93. ## Chemistry

I need help on these last three problems on my Hw. 1. A 10.0 L sample of gas at 3.00 degrees Celsius is cooled at a constant pressure until it reaches 1/2 of its original volume. At what temperature in K will this volume be reached? (Charles law) 2. 994

asked by Anonymous on May 19, 2015
94. ## physics.

Rank the following from most to least for the percentage of its volume above the water line: A. Basketball floating in saltwater B. Basketball floating in glycerin C. Basketball floating in gasoline

asked by Anonymous on April 3, 2014
95. ## Organic chemistry!!!Need helpp!!!

1. Consider the effect of water concentration on rate of the reaction in water and acetone. WOuld you predict that the rate would be greater or less in the presence of a higher concentration of water? Explain your answer, using the structure of the

asked by Jamie on December 11, 2006
96. ## Organic chemistry!!!Need helpp!!!

1. Consider the effect of water concentration on rate of the reaction in water and acetone. WOuld you predict that the rate would be greater or less in the presence of a higher concentration of water? Explain your answer, using the structure of the

asked by Jamie on December 11, 2006
97. ## Physics

Traveling at a speed of 22m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of friction between the tires and the road is 0.68. How much time does it take for the car to come to a halt? As usual, ignore

asked by Anonymous on November 9, 2014
98. ## civics

Which of the following actions is most typical of foreign policy intervention? A. The president creates a new economic plan. B. A task force is asked to investigate a possible free trade violation. C. The Environmental Protection Agency regulates

asked by StUdEnT on May 29, 2015
99. ## Physics

A density bottle has a mass of 70g when empty 90g when full of water and 94g when full of liquid x calculate a mass of water that fills the density bottle b volume of density bottle c mass of liquid x that fills the density bottle c the density of liquid x

asked by Miriam on April 16, 2018
100. ## chemistry

The experiment Water solubility, used three compounds Ethanol, Hexanol and Cyclohexene. Hexanol was unsoluble in water. suggest a solvent would dissolve this compound in water?

asked by Hasina on March 25, 2007