# 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?

66,863 results, page 84

1. ### PSY help

Sally is driving her car and talking on her cell phone. Statistically this behavior has been shown to be quite dangerous and contributes to many automobile accidents. In performing these two tasks simultaneously, Sally uses: a. conscious cognitive processes b. mindless ...
2. ### Chemistry

Using the principles of bond breaking and bond making, how can I explain why there is no change in temperature in phase changes? In a phase change, for example when boiling water is converted to steam, no O-H bonds are broken and none are made. Enough energy must be added to ...
3. ### Physics Help!!!! Please check

We had worked this one out before but due to my bad note i really don't understand what is going on in the question. Following the question I will post what I wrote done. Please help me make some sense of it. A 3.2 kg block is hanging stationary from the end of a vertical ...
4. ### Thermodynamics

Water in a piston/cylinder is at 100degC, x=0.5 with mass 1kg and the piston rests on two stops. The equilibrium pressure that will float the piston is 300 kPa. The water is heated to 300degC by an electrical heater. a) At what temperature would all the liquid be gone? I ...
5. ### Calculus

A chemical substance is draining from a conical filtering system at a rate of 100 cubic centimeters per minute into a cylindrical storage tank below. The conical filter and cylindrical tank each have a diameter of 60 centimeters, and the height of the cone also measures 60 ...
6. ### science/math

A juice processing operation uses steam to heat the fruit juice up to a temperature of 96̊C prior to packaging it in drink boxes. They need to heat 3,250 kg of apple juice (10.5% solids) from an initial storage temperature of 39̊F to its heat treatment temperature. ...
7. ### Math

How are decimals used in everyday life? The main use I can think of is in money. Money is expressed in decimal form. Although for everyday use, we rely on inches, feet and yards for distance, other countries use decimal measures â€” millimeters, centimeters, meters and ...
8. ### Chemistry

Why is CH3I have a higher boiling point than CH3Cl? I thought, since Cl is more electronegative, it withdraws more electron density to its part and hence increase dipole movement within the atom and hence, requiring more energy to split them up and that implies higher boiling ...
9. ### chemistry

The boiling points of the hydrogen halides are listed below. HF 19°C HCl –85°C HBr –67°C HI –35°C Which of the following accounts for the relatively high boiling point of HF? 1. HF has the strongest H—X bond. 2. HF molecules form hydrogen bonds. 3. HF molecules ...
10. ### chem

A solution is prepared by dissolving 0.87mol of MgCl 2 in 0.40kg of water. How many moles of ions are present in solution? What is the change in the boiling point of the aqueous solution?
11. ### Science

A mixture of sugar and water can be separated by _________________. Choose all that apply. (2 points) using a magnet boiling the mixture •• evaporating the mixture•• using a filter Correct me if I'm wrong!!
12. ### calculus

The region A is bounded by the curve y=x^2-5x+6 and the line y = -x + 3. (a) Sketch the line and the curve on the same set of axes. (b) Find the area of A. (c) The part of A above the x-axis is rotated through 360degree about the x-axis. Find the volume of the solid generated...
13. ### CHEMISTRY- boiling point

0.1m aqueous solution of HCl and 0.1m aqueous solution of C6H12O6. calculate the boiling point of each i know the eq. dTb=Kbm but i have no temperatures. this is the question
14. ### chemistry

For each trial, enter the amount of heat gained by the chemical system of ammonium nitrate, qrxn. The specific heat of water is 4.184 J/goC. Report your answer using 4 digits. The information given is: Trial # Tiwater Tf Masswater #1: 21.2 10.8 24.990 #2: 20.8 9.50 25.000 #3: ...
15. ### human rescource management (am i correct)

For your final project, you will develop documentation for human resources professionals to manage a specific employment position. The materials you create would assist HR professionals in the four functions of job analysis, selection, orientation, and training, all towards ...
16. ### Genetics

1) For each of the following partial diploids, give the cellular phenotypes for A and B. Explain. A B a. for a negatively regulated gene: F’pR- poA-B/ pR po-AB- F’p-R p-oA-B/ pR- poAB- b. for a positively regulated gene: F’pR- poA-B/ pR po-AB- F’p-R p-oA-B/ pR- poAB- 2...
17. ### Physics

A car and a truck starts from rest at the same instant, with the car initially at some distant behind the truck. The truck has a constant acceleration of 2.1 m/s^2, and the car at 3.4 m/s^2. The car overtakes the ruck after it has moved 40.0 m. a) how much time does it take ...
18. ### Chemistry

A solution was prepared by dissolving 72.0 g of glucose in 300.0 g of water. The ressulting solution was found to have a boiling point of 100.68C at 1 atm. Calculate the molar mass of glucose. For water Kb= 0.51 Ckg/mol. I know the molar mass of glucose if 180 g/mol because I ...
19. ### Physics

A car is traveling at 80 miles per hour down a paved, asphalt road in good condition. The driver steps on the brake, decelerating at a constant rate (expressed in m/s^2), to avoid hitting a horse in the road 1500 feet away. If the driver does not wish to experience too rapid a...
20. ### lube oil systems

With many lube oil systems, it is common to cool the oil before it is pumped to the end user (engine, compressor, etc). However, for large centrifugal compressors, it is common to pump the lube oil hot, and cool the oil immediately before it enter the compressor. Since we know...
21. ### maths

THE RAILROAD TRACK BETWEEN TOWN A AND TOWN B IS 500 MILES LONG THE BLUE TRAIN IS SCHEDULED TO LEAVE TOWN A FOR TOWN B AT 2 P.M THE RED TRAIN IS SCHEDULED TO LEAVE TOWN B FOR TOWN A AT 3 P.M BUT IS DELAYED 95 MINUTES DUE TO ENGINE PROBLEM . IF THE BLUE TRAIN TRAVELS 35 MPH AND ...
22. ### chemistry

Hii i was wondering if u cud help me solve this problem..im not sure how to start it. Calculate the delta H for the reaction of solid potassium with liquid water. If a 5.00 g piece of potassium is added to 1.00 kg of water at 24 degrees celsius what is the final temperature of...
23. ### physics

To determine the depth of a well, a person holds a penny at rest, drops it, and measures the time it takes for it to hit the water. If the time is 1.4 s, what is the depth of the well? Neglect air resistance. A.14 m B.52 m C.26 m D.32 m E.10 m
24. ### Physics

To determine the depth of a well, a person holds a penny at rest, drops it, and measures the time it takes for it to hit the water. If the time is 1.4 s, what is the depth of the well? Neglect air resistance. A.14 m B.52 m C.26 m D.32 m E.10 m
25. ### Physics

To determine the depth of a well, a person holds a penny at rest, drops it, and measures the time it takes for it to hit the water. If the time is 1.4 s, what is the depth of the well? Neglect air resistance. A. 14 m B.52 m C.26 m D.32 m E.10 m
26. ### AP Physics

27. a)In the 1950’s, an experimental train that had a mass of 32800 kg was powered across a level track by a jet engine that produced a thrust of 4.37× 10^5 N for a distance of 465 m.Find the work done on the train. Answer in units of J. b)Find the change in kinetic energy...
27. ### Physics

A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly. The valve is then closed, after which the piston is observed to be at a lower position. Assume that the system is in thermal equilibrium with the ...
28. ### Science

1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from combining 2.0g of hydrogen with 16.0g of oxygen? (1 ...
29. ### Chemistry

On June 17, heavy rain fell on Seattle for 26 min. at a rate of 3.9 mm/hr. if the area of Seattle is 144km^2, how many gallons of water fell on the city that day?
30. ### Chemistry

On June 17, heavy rain fell on Seattle for 26 min. at a rate of 3.9 mm/hr. if the area of Seattle is 144km^2, how many gallons of water fell on the city that day?
31. ### CHM 152

An automobile antifreeze contains equal volumes of ethylene glycol (d=1.114 g/mL and FW = 62.07) and water (d=1.00 g/mL) at 25oC. The solution has a density of 1.06 g/mL. What is the molarity of ethylene glycol in the solution?
32. ### Help!! With 2 math questions!!

There are 36 inches in one yard. How many yards and inches are there in 3785 inches? I need the yards, and inches! The next question is....Find the number of quarts in 73,458 cubic inches of water. There are 231 cubic inches in 1 gallon. Help~*Nikki 3785/36 = 105 yards 5 ...
33. ### Physics

One gram of water changes from liquid to solid at a constant pressure of 1.00 atm and a constant temperature of 0°C. In the process, the volume changes from 0.60 cm3 to 1.14 cm3. Find the work done on the water? Find the change in the internal energy of the water?
34. ### Science help

Will someone please check my work for me? Molecules involved in a chemical reaction must meet to react. What is this concept called? entropy enthalpy collision theory<---- reaction rate 2. Which of the following equations is used to describe reaction rates? ∆H - T&#...
35. ### science (check please (:)

8.Which of the following would help decrease the human ecological footprint? . . . . . . . . . . . . . . . My answer: using public transportation instead of riding in a car? (I have doubts on my choice) but my other choice is using bottled water instead of tap water?
36. ### Chemistry 101

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.
37. ### Chemistry 101

What is the mass of water (in grams and pounds). contained in a 100. foot long pipe that has an internal diameter of 6.5 centimeters? The density of water is 1.00 g/ cm^3. The volume of a cylinder is (pi)r^2L.
38. ### Math

An inverted right cone, half filled with water. I've only the volume of the entire cone to go from. So the volume of the cone = 1/3 the base area * height I've been told by a friend that the base area of a half scale cone = 1/4 of the larger cones base area; with the height ...
39. ### math

Alex is painting a house. He uses 1/3 of the paint he bought on the dining room. He uses twice as much as the living room as on the kitchen, when he uses 1-1/2 gallons. He has 1-1/2 gallons of paint left. How much paint did Alex buy?
40. ### Microeconomics

Paint increase from \$3.00 a gallon to \$3.50 a gallon. The paint drops from 35 gallons a month to 20 gallons a month. Compute the price elasticity of demand for paint and show the calculations
41. ### math

Alex is painting a house. He uses 1/3 of the paint he bought on the dining room. He uses twice as much on the living room as on the kitchen, where he uses 1 1/2 gallons. He has 1 1/2 gallons of paint left. How much paint did Alex buy?
42. ### chemistry

I have many questions. I have a test tuesday and need to get these problems done and understand them today because i am currently studying. I am in college and my professor has not emailed me back regarding solutions for the review problems she posted. Is it possible if you ...
43. ### physics

can u solve this question? When a body hanging from a spring balance is immersed in water it floats just below the surface of water and shows 100g loss in its weight: 1. What is the weight of the body in water , air , upthrust on the body and what is the volume of the body?
44. ### SCIENCE PHYSICS

WHEN a body hanging from a spring balance is immersed in water it floats just below the surface of water and shows 100 g loss in its weight then what is the weight of the body in water,in air,what is upthrust on the body what is the volume of tne body.
45. ### chemistry

How many grams of FeCl2 should be dissolved in 1 kg of water to make its boiling point equal to 101.56 degrees centrigrade at atmospheric pressure of 1 atm? (Kb=0.52 degrees Celsius/m; solute is completely dissociated). Thanks!! =)
46. ### physics

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of one of the car’s tyre...
47. ### Physics

A car with a total mass of 1800kg (including passengers) is driving down a washboard road with bumps spaced 5.0m apart. The ride is roughest—that is, the car bounces up and down with the maximum amplitude—when the car is traveling at 6.1 m/s.What is the spring constant of ...
48. ### physics

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of one of the car’s tyre...
49. ### BIO ?'s

Why is life based upon the cell? More or less, why are cells necessary for life? Is there a limit to how large a cell can be? ** If anyone can help or just give me an idea to go on for this it would be helpful! Even a good site to start research! THANKS! There may be life ...
50. ### chemistry ap

Assuming all volume measurements are made at the same temperature and pressure, what volume of hydrogen gas is needed to react completely with 3.25 L of oxygen gas to produce water vapor? Answer in units of L.
51. ### math 73

if creamery is 22% butterfat. how many gallons of cream must be mixed with milk testing at 2% butterfat to get 20 gallons of milk containing 4% butterfat
52. ### Math

How do you solve for this:how many gallons of a 10% alcohol solution be mixed with 20 gallons of a 10% acid solution to obtain an 8% acid solution.
53. ### tenses

1. The duo had been given the second best time slot. a. past perfect in the passive voice b. past continuous in the passive voice c. An infinitive in passive voice d. simple past in the passive Answer d 2. The promotional poster was designed by Jack. a. past perfect in the ...
54. ### Physics

A 2m radius uniform 50kg disk has an object of unknown moment of inertia screwed into its center. A constant external force of 200N is applied tangentially to the disk's rim. A constant torque due to kinetic friction of 180Nmrad is present throughout the motion. The system ...
55. ### physics

According to legend, to determine whether the king's crown was made of pure gold, Archimedes measured the crown's volume by determining how much water it displaced. The density of gold is 19.3 g/cm^3. If the crown's mass was 6.00 * 10^2g, what volume of water would have been ...
56. ### physics

Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force (same size force on each car) to the edge of the ...
57. ### Physics

I just need help with c A long horizontal hose of diameter 4.2 cm is connected to a faucet. At the other end, there is a nozzle of diameter 2 cm. Water squirts from the nozzle at velocity 24 m/sec. Assume that the water has no viscosity or other form of energy dissipation. a) ...
58. ### Physics

An experimental train has a mass of 1.70e4 kg and is powered across a level track by a jet engine that produces a thrust of 4.90e5 N for a distance of 520 m. a) Find the change in kinetic energy. b) Find the final kinetic energy of the train if it started from rest. c) Find ...
59. ### Information Systems

Problem #2 from page 173 Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the ...
60. ### Algebra

Set up a system of equations for each word problem One scuba diver starts at a depth of 12 meters below the water's surface and ascends at a rate of 1 meter per second. A second diver starts at a depth of 15 feet and ascends at a rate of 2 meters per second. After how many ...
61. ### Math

Trey can drive his car 130 miles on 4 gallons of gas. At this rate, if gas cost \$ 3.45 per gallon how much will it cost to drive 260 miles?
62. ### Physics

A 9.7-kg watermelon and a 7.1-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. The angle beneath the pumpkin is 53 degrees and the angle beneath the watermelon is 30 degrees. (a) Find the ...
63. ### NAPOLEON INFORMATION

Imagine that you are a senior advisor to Napoleon. You have been asked to prepare a memo outlining the advantages and disadvantages of disrupting Britain's trade with Europe. Your memo should examine the impact of such a move from the standpoint of Britain, France, and the ...
64. ### mat

harvest cereal comes in boxes of different sizes.the regular box holds 7/8 pounds.the small box holds 2/3 as much. How much cereal does the small box hold?
65. ### Physics

A girl standing on a stationary uniform plank 10m long. The plank can move with negligible friction along the surface of the water. A) the girl walks along the plank with a velocity of 2ms-1 relative to the plank until she reaches the end of the plank. The centre of mass of ...
66. ### General Chemistry

Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. Compare these theoretical values with the actual values found on the titration ...
67. ### science

what volume of helium would be in a balloon the size of a soft drink bottle? Depends on the size of the soft drink bottle. . . . The worksheet didn't specify the size. It wants us to apply strategies. Thank you.... i'm assuming about the same volume as in the bottle Volume of ...
68. ### Science halp

10. Which situation is an example of Newton’s third law of motion? * 1 point A.A ball in a vacuum container moves in a straight line at a constant velocity. B.A ball in a vacuum container accelerates when kicked with a great amount of force. C.A person riding in a forward-...
69. ### chemistry

How much heat is required to vaporize 3.50L of at its normal boiling point? The following data are given for Carbon Tetrachloride. Normal melting point, -23 Degrees Celsius, normal boiling point, 77 Degrees Celsius; density of liquid, 1.59g/mL; Delta H (FUSION): 3.28 kJ mol^-1...
70. ### chemistry

How much heat is required to vaporize 3.50L of at its normal boiling point? The following data are given for Carbon Tetrachloride. Normal melting point, -23 Degrees Celsius, normal boiling point, 77 Degrees Celsius; density of liquid, 1.59g/mL; Delta H (FUSION): 3.28 kJ mol^-1...
71. ### chemistry

Before a trip from New York to Boston, the pressure in an automobile tire is 2.5 atm at 272 K. At the end of the trip, the pressure gauge reads 1.94 atm. What is the new Celsius temperature of the air inside the tire? (Assume tires with constant volume.) Answer in units of ...
72. ### Geography

These are my already asked questions that I didn't find an answer to [I'm not sure why] Can someone please help with them, because my exam's due monday. 2. How has human settlement affected the natural vegetation of Western Europe? a. People have carefully protected all of the...
73. ### science

What state of matter occurs during boiling? (solid, liquid, gas) gas...'cause the liquid boiling is evaporating? gas
74. ### Physics

You drop a 2 kg textbook to a friend who stands on the ground 10m below the testbook with outstreatched hands 1.5m above the ground. a) how much work W_g is done on the textbook by the gravitational force as it drops to your friend's hands? b)What is the change in the ...
75. ### chemistry HELP

Use the following information to identify element A and compound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a temperature of 15°C. ...
76. ### Geology

Can someone please look this over and let me know if I described the Plate Tectonic Theory? Thanks. Write a 200-300-word summary about two historical figures and the process of mantle convection and plate movement. Two historical figures that contributed to the plate tectonic ...
77. ### Physics Entropy Project

We did a lab in class where we heated a nail, and our goal was to determine the total increase in entropy of the system. I have all of the measurements but I'm not sure how to go about figuring out the change in heat (delta Q). delta S = delta Q / delta T (S=Q/T) Here are all ...
78. ### physics

A bar of gold measures 0.15 m × 0.050 m × 0.050 m. How many gallons of water have the same mass as this bar?
79. ### English & Composition!

This is my conclusion to my surveillance essay. Can someone help me revise this or suggest any changes. I tried to make the conclusion as mature as possible to be a college/ university type of conclusion. Any further suggestions would be much appreciated. *I used "society" ...
80. ### chemistry

To create a 0.1 M carbonate buffer pH = 10.2. You choose to use a combination of HCO3- / CO32-. This buffer system has pKa = 9.9.   a) Calculate how much you need to weigh in each of the sodium salts, NaHCO3 and Na2CO3, to create 1.0 L carbonate (with total concentration of ...
81. ### Physics help

a pendulum bob with a mass of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 ...
82. ### Physics

a pendulum bob with a mass of 0.13 kg is attached to a string with a length of 0.95 m. we choose the potential energy to be zero when the string makes an angle of 90 degrees with the vertical. (a) find the potential energy of this system when the string makes an angle of 45 ...
83. ### Physics

A plane weighing 220 kN (25 tons) lands on an aircraft carrier. The plane is moving horizontally at 67 m/s (150 mi/h) when its tail hook grabs hold of the arresting cables. The cables bring the plane to a stop in a distance of 84 m. (a) How much work is done on the plane by ...
84. ### math

the design for a water storage tank calls for a radius of 19.5m and a height of 8.3m each dimension had a variability of +- 0.05m what is the minimum volume of water that the storage tank can hold what is the variability of water most possible and least possible
85. ### Physics

Two cars travel at the same speed, so that they move 105 km in one hour. One car, a sleek sports car, has a motor that delivers only 35 kW of power at this speed. The other car needs its motor to produce 65 kW to move the car this fast. The difference is caused by air ...
86. ### Physics

Two cars travel at the same speed, so that they move 105 km in one hour. One car, a sleek sports car, has a motor that delivers only 35 kW of power at this speed. The other car needs its motor to produce 65 kW to move the car this fast. The difference is caused by air ...
87. ### College Physics

Dry Ice. At standard atmospheric pressure, the solid form of carbon dioxide called “dry ice” undergoes a phase change not to a liquid but straight to a gas. This process is called sublimation, and like other phase transitions heat energy is required. In this case it is the...
88. ### ChemistryPRELABS

Mixtures of oxygen and nitrogen show almost ideal boiling behaviour. Nitrogen boils at 77.36 K and oxygen boils at 90.30 K. What is the boiling point of air?
89. ### math

witch of the ratio's does not form a poportion? A. 3/5 24/40 B.30/10 15/5** C.9/14 3/4 D.7/12 14/24 pleas check and do not put that messy stuff on here the comments blend in and i can't read them.
90. ### physics

An interstellar ship has a mass of 1.20 X10^6 kg and is initially at rest relative to a star system. a) what constant acceleration is needed to ring the ship up to a speed of .10c (where c is the speed of light, 3.0X10^8 m/s) relative to the star system in 3 days? b) what is ...
91. ### Chem

when 21.70 ml of 0.5000 m h2so4 is added to 21.70 mL of 1.000 M KOH in a coffee cup calorimeter at 23.50 degrees c, the temperature rises to 30.17 degree c. calculate delta H of this reaction (Assume that the total volume is the sum of the individual volumes and that density ...
92. ### Chem

Phenol is a weak acid. We take 3.7 grams of phenol and dissolve it in 65 ml of water. To that water we add 40 ml of a 0.52 M solution of NaOH. You will need to look up the Ka value for Phenol a. What is the pH when the phenol is dissolved in the 65 ml of water ? b. Once the ...
93. ### Math 3

If you want to be eligible for partial credit, please show your work. Solve the following system of equations using any method. y=1/2x+3 y=1/3x-2 Try substituting the equations. if y=1/3x-2, then 1/3x-2 = 1/2x+3 Solve for x, then plug your solution in for y Does x=4 and y=2 No...
94. ### PLZ Check my Science Project's summary?!

The following r the instructions to my Project: - Compose a scientific summary of your method, observations, data, and conclusions. In addition, be sure to answer the questions below in your report. 1. Why does the first method for determining volume work only for a regular-...
95. ### Science/maths

what are some problems you might encounter when a)finding the volume of a rugby ball b)finding the diameter of a tennis ball c) finding the mass of a grain of sugar can you help me then I help you please w/b a) submerge it in water in a graduated container and find its volume ...
96. ### chemistry

Container A holds 767 mL of ideal gas at 2.50 atm. Container B holds 144 mL of ideal gas at 4.70 atm. If the gases are allowed to mix together, what is the resulting pressure?
97. ### Math

A tank, when one-fifth full, holds 75 litres of water. How many litres will it hold when full?
98. ### Physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a constant acceleration of 3...
99. ### chemistry

For a 0.50 molal solution of sucrose in water, calculate the freezing point and the boiling point of the solution. Please list each step.?
100. ### science

How much hot air in SCFM is needed to heat up water from 60F to boiling point. The hot air is 350F.