# how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3

22,259 questions, page 139
1. ## CHEMISTRY

A FALSK CONTAINS 49.8 mL OF 0.150 CALCIUM HYDROXIDE. HOW MANY MILLILITERS OF 0.500 SODIUM CARBONATE ARE REQUIRED TO REACT COMPLETELY WITH THE CALCIUM HYDROXIDE IN THE FOLLOWING REACTION? Na2CO3(aq)+ Ca(OH)2(aq)¨CaCO3(s)+2NaOH(aq)

asked by HAMZA on October 23, 2012
2. ## science

calculate the minimum guage pressure required at the base of building of height 200m for water to reach a closed tank at the of the building at the gauge pressure of 500Kpa

asked by vutlhari on April 16, 2015

If it requires 5.5J of work to stretch a particular spring by 2.3cm from its equilibrium length, how much more work will be required to stretch it an additional 4.5cm ? Express your answer using two significant figures. W=_____ J?

asked by ALI on February 25, 2014
4. ## Chemistry

Help me please wether i d0ne it right,what is the mass of calcium carbonate is required to react with sulfur dioxide produced by burning 1000 kgs of coal that contain 5% sulfur by mass?tnx

asked by joy on April 28, 2011
5. ## Physics of Vehichle

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, will a friction force be required? If so, in what direction? May someone please walk me through this problem step by step? Thank you

asked by Mike Joseph on June 16, 2012
6. ## SCIENCE-URGENT

So I'm in 7 grade and doing a science project. I have a question: What does it mean when it says: RESEARCH? I am required to have this on my board. Does it mean what I looked up to help me on this project? Also, what does it mean when it says: DATA? Do I

asked by Anonymous on November 21, 2011
7. ## Physics

A 149 kg crate is pushed at constant speed up a frictionless inclined plane of theta = 51 with the horizontal. Assuming one pushes with a horizontal force, what is the magnitude of the force F (in N) required to do this?

asked by JAYZ on October 14, 2013
8. ## Question ! :)

Why is it important to use caution before putting any personal information on a computer? (example(s) required) I think everyone knows the general idea to the answer to this question but this is my final exam question...so it has to be thorough. Any

asked by Kate on May 19, 2009
9. ## Chemistry

A solution is prepared by mixing 0.12 L of 0.12 M sodium chloride with 0.22L of a 0.19M MgCl2 solution.What volume of a 0.22 M silver nitrate solution is required to precipitate all the Cl- ion in the solution as AgCl ?

asked by Abril on March 13, 2010
10. ## math

A gallon of paint covers about 350 square feet how many gallons would be required to paint a room that is 11 ft in length 10 1/2 in width and 9 ft 7 inches in height. round up to the nearest gallon

asked by yorkie16 on April 20, 2009
11. ## Computer

Why is it important to use caution before putting any personal information on a computer? (example(s) required) I think everyone knows the general idea to the answer to this question but this is my final exam question...so it has to be thorough. Any

asked by Helen on May 19, 2009
12. ## chemistry

a solution contains Cr3+ ion and Mg2+ ion. The addition of 1.00 L of 1.55 M NaF solution is required to cause the complete precipitation of these ions as CrF3(s) and MgF2(s). The total mass of the precipitate is 49.8 g.

asked by Lynn on January 28, 2012
13. ## Chemistry (urgent!)

A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. Please show steps so that I may unders tand how solve this. Thank you

asked by jj on March 15, 2009
14. ## Chemistry

A 0.18 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.13 M) was used to titrate the sample, and 16 mL was required to reach the endpoint. What is the formula weight of the unknown?

asked by Taylor on April 24, 2016

A 0.12 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.10 M) was used to titrate the sample, and 18 mL was required to reach the endpoint. What is the formula weight of the unknown?

asked by Stephanie on December 8, 2010
16. ## Calc

A box with a square base and no top is to be built with a volume of 4000 in3. Find the dimensions of the box that requires the least amount of material. How much material is required at the minimum?

asked by Coc on November 4, 2015
17. ## Math sinking payment

Could some one please explian What is a sinking fund payment.. Example at 8% interest compounded quarterly in order to reach \$20,000 with in five years the sinking payment would be required at the end of each three month period

asked by Anonymous on November 14, 2007
18. ## Finance

Keenan Co. is expected to maintain a constant 3.8 percent growth rate in its dividends indefinitely. If the company has a dividend yield of 5.6 percent, what is the required return on the company’s stock?

asked by Jenna Fray on October 2, 2012
19. ## math

a driveway is 162 feet long, 12 feet wide, and 6 inches deep. how may cubic yards of concrete will be required to lay the driveway? and pease explain answer

asked by lala on March 10, 2009
20. ## Chemistry

Consider the unbalanced redox reaction: Cr2 O7 2-(aq) + Cu(s) ----> Cr3+(aq) + Cu2+ Balance the equation in acidic solution and determine how much of a 0.850 M K2 Cr2 O7 solution is required to completely dissolve 5.25 g of Cu.

asked by t on July 22, 2014
21. ## Exploring Space

if u could travel at the speed of ligt without fuel, where would the energy required for the engine come from? is this possible? it is impossible to travel anywhere without fuel. The only other option is to walk by foot. I don't know the answer to the

asked by Sara on March 3, 2010
22. ## chemistry

a.) Write the balanced complete combustion reaction for ethane (C2H6), producing CO2 and water vapour. Make sure to include phases. Also, make sure that the stoichiometric coefficients are whole numbers and are not fractions. b.) What is the enthalpy of

asked by BILLY on October 3, 2014
23. ## Physics

Sally Skier skiis down a rough ice covered 10.0 m high incline into a smooth bowl of radius 4.0 m. Sally starts her descent with a speed of 3.0 m/s at the top of the hill and arrives at the bottom of the bowl (point B) with a speed of 10.3 m/s. Sally has a

asked by Kim on December 12, 2011
24. ## physics

A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a distance 2.60×10−2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and

asked by ami on October 7, 2010
25. ## chemistry

How many moles of elemental chlorine (Cl2) is required to have the same number of atoms as two moles of of elemental phosphorus (P4)

asked by Anonymous on August 5, 2011
26. ## chem

What volume of a 8.50M Na2CO3 solution would be required to prepare 220.00mL of a 8.20%w/v Na2CO3 solution?

asked by darren on November 29, 2011
27. ## physics

If it requires 5.5 J of work to stretch a particular spring by 2.0 cm from its equilibrium length, how much more work will be required to stretch it an additional 4.1 cm?

asked by Bill on November 12, 2011

5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?

asked by Amber on November 15, 2010
29. ## Chemistry help

NaOH+H2SO4-> H2o+Na2SO4? How many moles of NaOH required to neutralize 1 mole H2SO4?

asked by Lee************** on April 14, 2012
30. ## CHEM

HOW MANY GRAMS OF SALT ARE REQUIRED TO PREPARE 300 G OF 15% SALT SOLUTION? HOW MANY GRAMS OF WATER ARE NEEDED?

asked by Anonymous on December 4, 2010
31. ## physics

5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?

asked by Amber on November 15, 2010
32. ## Chemistry

Exactly 23.6 ml of a 0.131 N HCl solution was required for complete neutralization of 25.0 ml of an NaOH solution.What was normality of the NaOH?

asked by Rajan Khare on June 25, 2011
33. ## Science / Physics

If the mass of the counterweight increases by adding more mass, how does the force required to lift the counterweight change?

asked by Klauus on April 19, 2019
34. ## Chemistry

Given the following chemical equation: 3 Cu + 8 HNO3 = 3 Cu(NO3)2 + NO + 4 H2O. How many moles of HNO3 are required to react with 6 moles of Cu?

asked by Persia on July 14, 2008
35. ## Applied Math

If a scale drawing has a ratio of 1.5 inches to 20 feet,how many inches would be required for an actual distance of 75 feet?

asked by Shannian on April 26, 2012
36. ## chemistry

You want to prepare 500 ml of 1.0M acetic acid from a 17.4 M stock solution.What volume of stock solution is required?

asked by omar on November 28, 2015
37. ## Math Ratio

If 8 pounds of hamburger feeds 5 people for 7 days, how much meat is required to feed 7 people for 8 days?

asked by Sarah on January 31, 2014
38. ## Chemistry

If 36.00 mL of KMnO4 solution are required to oxidize 25.00mL of 0.02932 M Na2C2O4 solution what is the concentration of KMnO4?

asked by Tilly on November 2, 2010
39. ## hunter

how many grams of oxygen are required to burn 5.9g of C2H5OH? Molar masses: C2H5OH= 45.06 g/mole O2= 32.0 g/mole

asked by Anonymous on October 18, 2016
40. ## Chemistry

What volume will be required to contain a mixture of 0.547 mol of N2 and 0.547 mol of O2 at 1.11 atm and 22.1 degrees celsius?

asked by Harry on March 20, 2012
41. ## CHEMISRTY

HOW MANY GRAMS OF MAGNESIUM ARE REQUIRED TO PRODUCE 2.154 GRAMS OF PRODUCT? STEP BY STEP EXPLAINATION

asked by Donna on February 28, 2010
42. ## Chemistry

The Haber process is used to synthesize ammonia from hydrogen and nitrogen. How much hydrogen is required to produce 42.8 kg of ammonia?

asked by Jesus on February 9, 2014
43. ## chemistry

What [Ag1+] is required to start precipitation of AgOH from a saturated solution of Mg(OH)2? Ksp = 2.4 ✕ 10-8 for AgOH and Ksp = 2.6 ✕ 10-11 for Mg(OH)2

asked by Danielle on February 9, 2014
44. ## Physics

If it requires 7.0 of work to stretch a particular spring by 2.1 from its equilibrium length, how much more work will be required to stretch it an additional 3.7?

asked by Stew on November 1, 2010
45. ## Chemistry

NaOH+H2SO4-> H2o+Na2SO4? How many moles of NaOH required to neutralize 1 mole H2SO4?

asked by Lee on April 12, 2012
46. ## Physics

If a force of 10 N is required to keep a piece of wood 1m under water (density=1g/cm3 ), the force needed to keep it at 2 m under water is:

asked by JuliePham on May 2, 2016
47. ## Physics

5.Assuming the surface tension of water is .073 N/m, what is the force required to overcome the surface tension?

asked by Amber on November 15, 2010
48. ## CHEMISTRY

AIR CONTAIN 20% oxygen by volume . the volume of air required to oxidise 1gram CNG AT STP WILL BE WHAT

asked by Anonymous on August 16, 2011
49. ## Chemistry

How Many Moles Of H2O Are Required To Produce 4.5 Moles Of HNO3 According To The Following Reaction: 3NO2+H2O = 2HNO3+NO

asked by Bake Samuel Burje on May 6, 2019
50. ## Chemistry

Given the data below, calculate the total heat (in J) needed to convert 20.0 g of liquid ethanol (C2H5OH) at 40.0 oC to gaseous ethanol at 125 oC. A. 3.23 x 103 B. 3.67 x 103 C. 4.17 x 103 D. 2.08x104 E. 2.12 x 104

asked by Alex on March 8, 2012
51. ## CHEMISTRY

A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.2 g water at 36.0°C are added to 97.3 g water in the calorimeter at 16.0°C. The final temperature is 26.0°C. Calculate the heat capacity of the calorimeter in

asked by Sarah on April 17, 2012
52. ## CHEMISTRY

A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.2 g water at 36.0°C are added to 97.3 g water in the calorimeter at 16.0°C. The final temperature is 26.0°C. Calculate the heat capacity of the calorimeter in

asked by Sarah on April 16, 2012
53. ## Physics

A gas is compressed at a constant pressure of 0.800 atm from 6.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat. (a) What is the work done on the gas? (b) What is the change in its internal energy?

asked by Sam on November 26, 2012
54. ## Chemistry

A system initially has an internal energy U of 493 J. It undergoes a process during which it releases 107 J of heat energy to the surroundings, and does work of 225 J. What is the final energy of the system, in J?

asked by Chris on May 5, 2014
55. ## science

A 30-g iron bar at 100degreeC is placed in 200 g of water at 20degreeC. If the specific heat capacity of iron is 0.11 cal/gdegreeC, to what final temperature will the iron bar cool?

asked by Debra on October 25, 2011
56. ## Chemistry

A 45.4 grams of a gold metal sample was heated with the amount of energy of 228 J. Which of the following would the most plausible temperature change of the gold sample? The specific heat of gold is 0.131 J/g.oC. 12.8 oC to 38.3 oC 24.4 oC to 81.6 oC 23.8

asked by Heather on February 28, 2015
57. ## chemistry

If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced? Show all calculations leading to an answer. Is this how you would do this? Q= m*Hvap Q= m* 5.40 Q=100*5.40 Steam = 540 kg of steam?

asked by Student101 on May 11, 2015
58. ## science

what are the characteristics of a chemical change? New substances are formed. This is often accompanied by heat, light, change in appearance (though physical changes also can change in appearance)or color.

asked by diego on September 25, 2006
59. ## chemistry

Calculate the heat of formation of SiO4(s), given that the heats of formation of SiO2(s), -910.90 KJ/mol; H2O(l), -285.8 KJ/mol; HF (g), -271.1 KJ/mol.

asked by matt on November 7, 2008
60. ## Chemistry

If 18oo cal:of heat is added to a system while system does work equivalent to 2800 cal:by expanding against its surroundings. What is the value of deltaE for the system?

asked by ABC on July 4, 2017
61. ## Science

How much energy is released when a 5600-g sample of water cools from 99 degrees C to 28 degrees C. The specific heat capacity of water is 4.18 J/(g*degrees C) Can someone please tell me the steps to do this?

asked by Amanda on April 22, 2008
62. ## SCIENCE

When you turn on a television, you transform electrical energy into what types of energy? 1) heat energy 2) light energy 3) elastic potential energy 4) sound energy I THINK #1 ,#2 #4 Thanks for your help.

asked by Evelyn on March 20, 2017
63. ## Chem

When 1.0 grams of gasoline burns, 11500 calories of heat energy are given off. If the density of gasoline is 0.66 g/ml , how many kilocalories of energy are obtained from 1.5 gallons of gasoline?

asked by Anonymous on July 2, 2013
64. ## chemistry

A 1.252g sample containing iron dissolved and converted to Fe followed by ADDITION OF 25ML OF 0..01m K2CR2 07. THE EXCESS K2CR207 REQUIRED 6.85ML OF 0.015m SN2+. Find the percentage fe3 04 fw 213g/mol in the sample. Who helps me

asked by Fai on December 11, 2012
65. ## Inorganic chemistry

Potassium hydrogen phthalate (molar mass = 204.2 g/mol is used to standardize sodium hydroxide. If 23.67 ml of NaOH (aq) is required to titrate 0.7719 g KHP to the equivalence point, what is the concentration of the NaOH(aq)? HC8H4O4-(aq) + OH-(aq) =

asked by Steve on April 11, 2009
66. ## physics

The driver of a car is initially moving at a constant speed of 76.0 km/h when a traffic light turns red. If a 0.455 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow

asked by Nour on September 13, 2011
67. ## Chemistry

Potassium hypobromite, KOBr, converts ammonia to nitrogen by the following reaction. 3KOBr + 2NH3 N2 + 3KBr + 3H2O To prepare 448.2 mL of dry N2, when measured at 22.3 °C and 777.3 torr, what is the minimum number of grams of KOBr required?

asked by Paxton on April 12, 2013
68. ## Intellectual Academy

Pls show me the steps how to work this physics question:A pulley system of 4 pulleys is used to raise a loan of mass 50kg vertically,if its effeciency is 80%,determine the minimum effort required to raise the load(g=10ms-2)?

asked by Joy on October 22, 2015
69. ## Chemistry

Potassium hypobromite, KOBr, converts ammonia to nitrogen by the following reaction. 3KOBr + 2NH3 N2 + 3KBr + 3H2O To prepare 448.2 mL of dry N2, when measured at 22.3 °C and 777.3 torr, what is the minimum number of grams of KOBr required?

asked by Paxton on April 12, 2013
70. ## Physics

The oven draws 1100W of power, and you have determined that it heats with an efficiency of 51%. Using this information, determine the time t it would take to bring 240mL of water from 25C to 100C . Note that 4.2 J of energy is required to raise the

asked by Mike on December 10, 2010
71. ## geometry

A Japanese fan can be made by sliding open its 7 small sections (or leaves), which are each in the form of sectors of a circle having central angle of 15. If the radius of this fan is 24 cm, find out the length of the lace that is required to cover its

asked by Niel on March 15, 2014
72. ## physics

The driver of a car is initially moving at a constant speed of 71.8 km/h when a traffic light turns red. If a 0.550 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow

asked by Anonymous on September 10, 2012
73. ## Physics- tension

An 63 kg construction worker is sitting 2.0 m from the end of a 1435 kg steel beam to think about the state of the world. Find the tension in the cable that is supporting the beam. Am I required to use the formula T1=sin(theta)*m*g? I am not sure if the

asked by Chris on November 11, 2014
74. ## Chemistry

Potassium hypobromite, KOBr, converts ammonia to nitrogen by the following reaction. 3KOBr + 2NH3 N2 + 3KBr + 3H2O To prepare 448.2 mL of dry N2, when measured at 22.3 °C and 777.3 torr, what is the minimum number of grams of KOBr required?

asked by Paxton on April 12, 2013
75. ## chemistry

A 0.200g sample containing mn02 was dissolved and analyzed by addiction of 50ml of 0.100M fe to drive the reation. The excess fe required 15ml of 0.0200 m kmn04. Find % mn304 fw 228.8mg/mmol in the sample? who helps me

asked by Fai on December 9, 2012
76. ## Physics

The observation deck of tall skyscraper is 370. m above the time required for a penny to free fall from the deck to the street below and its velocity when it reaches the ground . Plzz help I know the t= .869 and the v= 85.2 and thank u :) have a good day

asked by Dyla on September 9, 2016
77. ## college chem

what volume of 0.955 M HCl, in milliliters, is required to titrate 2.152g of Na2CO3 to the equivalent point? Na2CO3(aq) + 2HCl(aq) 2NaCl(aq) + CO2(g) + H2O(1) can this please be explained in simple step by steps? i am sick and i am having trouble

asked by cheryl on October 6, 2011
78. ## social studies

what qualities did an africian american immigrant need in order to migrate to canada in the mid 1850 s I have to include in my answer The prior conditions of their home countries which required them to leave The obstacles/ challenges on their journey Their

asked by Bay on December 14, 2013
79. ## chemistry

A student dissolves a .726 g aspirin tablet in water and titrates the solution with .272 M NaOH are required to reach the equivalence point. Calculate the percentage of acetylsaliclic acid in the tablet. I am not really sure where to start with this. I

asked by Aaron on February 27, 2017
80. ## marketing

13) Which of the following would probably NOT be in a proposed marketing plan? A. A list of what company resources (costs) would be required. B. Expected sales and profit results. C. A description of the target market and marketing mix. D. A statement of

asked by Anonymous on April 26, 2010
81. ## Physics

A 56kg adult is climbing up a staircase of 67m. By how much would her body temp increase if her lost energy went into increasing her body temperature during this climb (in C)? I calculated the required amount of joules to reach the top to be 37x10^4J but i

asked by Alona on November 9, 2010
82. ## maths help me

an engine pumps water from a river 10m an below its own level and discharge it through a nozzle of diameter 10cm with a speed of 50m/ s.find the power required assuming a.no losses b.70% efficiency.water weighs 10^3kgm^-3 {g=10ms^-2} help me

asked by dams on September 19, 2016
83. ## geography

the native people originally come from? the ethnic ground that settles on praires is? the process that is formed on rocky mountains and appalachians? tha most valuable catch in the pacific is? the most eastern and western physiographic region is? the two

asked by Ted on June 13, 2010
84. ## chemistry

A 2.50-g sample of powdered zinc is added to 100.0 mL of a 2.00-M aqueous solution of hydrobromic acid in a calorimeter with a total heat capacity of 448 J/K. The observed increase in temperature is 21.1 K at a constant pressure of one bar. Using these

asked by she on October 10, 2012
85. ## Calculus I

Hello, The pressure P and volume V of an expanding gas are related by the formula PVb=C, where b and C are constants (this holds in adiabatic expansion, without heat gain or loss). Find dPdt if b=1.6, P=12kPa, V=80cm2, and dVdt=20cm3/min. Thus far, I got

asked by Natalie on April 10, 2015
86. ## math

The weights of ice cream cartons produced by a manufacturer are normally distributed with a mean weight of 10 ounces and a standard deviation of 0.5 ounce.(a) What is the probability that a randomly selected carton has a weight greater than 10.21

asked by Joe on November 20, 2017
87. ## AP Chem

A mixture of 1.380 g of H2 and 66.80 g of Br2 is heated in a 2.00-L vessel at 700 K. These substances react as follows. H2(g) + Br2(g) equilibrium reaction arrow 2 HBr(g) At equilibrium the vessel is found to contain 0.605 g of H2. (a) Calculate the

asked by Adriana Vargas on March 13, 2015
88. ## English

What winter sport do you like most? 1. I lke curling because it's fun to see players hit big stones. 2. I like bobsledding because it's thrilling to ride a bobsled. 3. I like speed skating because I like wild races. 4. I like ski jumping because I like

asked by rfvv on October 3, 2014
89. ## Chemistry

1.The Volume of oxygen required for the complete combustion of 500ML of ethyne at STP..A)2.00ML B)1.25 C)1.71 D)1.00 2.A Chemical Engineer finds that 250ml CuSO4 reacts with excess NaOH to create 2.37g of precipitate.Calculate the Concentration of

asked by Alex on June 4, 2009
90. ## Chemistry

Hydrogen iodide decomposes according to the following equation: H2(g) + I2(g) ⇌ 2HI(g) A 2.50 L equilibrium mixture contains 0.0875 mol H2, 0.020 mol I2, and 3.72 mol HI. Determine the new equilibrium concentrations after 1.25 mol HI are added to the

asked by sea lively on July 13, 2018
91. ## CALC

I am sorry i still don't know how to start. and i am sorry for the problem earlier..it wasn't my fault :( Note that the way students like you are asked to solve this and similar problems is usually not the way people like me solve such problems. It is a

asked by URGENT PLZ on May 6, 2007
92. ## mathematics

draw a table illustrating the number of edges, face, vertics each of the following solid have cube, cuboid, cylinder, cone, prism, pyramid, sphere. I searched Google under the key words "geometric solids" to get these possible sources:

asked by jason on May 25, 2007
93. ## chemistry

Which way will the equilibrium shift when subjected to the following changes? 2NOBr + heat 2NO +Br2? NO is addded temp. doubled Br2 removed Pressure increased I said: reverse, forward, forward, forward

asked by Clare on April 27, 2015
94. ## chem 211

If 100.0mL water of at 50.0C is added to 100.0 mL of water at 20.0C. What temperature would the mixture of water reach? Assume the system is perfectly sealed and no heat is lost to the calorimeter or to the outside environment. 2)

asked by beti on November 5, 2013
95. ## chemistry

If a container is heated with CaCO3, the compound decomposes into CaO and CO2. If the container and CaCO3 originally weigh 30.08g and loss 4.40g during the heat, what is the mass of the empty container?

asked by homework on October 2, 2017
96. ## Science

How does a nuclear power plant produce energy? A. Through solar panels B. Through nuclear fission reactions C. Through geothermal heat D. Through nuclear meltdown reactions I am not really sure what the answer is but I am thinking…c? Or I guess d?

asked by Jessica on April 13, 2017
97. ## chemistry

A 23.9 g piece of metal heated to 97.8 oC is placed in 52.4 g water at 21.9 oC. After the metal is added, the temperature of the water rises to 29.9 oC. Calculate the specific heat of the metal. Express your answer in the units of cal/goC.

asked by HAY on November 20, 2014
98. ## Chemistry

The specific heat capacity of butanone is 1.69J/grams Celsius and it's boiling point is 79 Celsius. If 1.250g of butanone at 15 Celsius is heated by adding 100J of energy, will it boil

asked by Paul on January 27, 2013
99. ## chemistry

A gas is compressed from an initial volume of 5.60 L to a final volume of 1.22 L by an external pressure of 1.00 atm. During the compression the gas releases 128 J of heat. What is the change in internal energy of the gas?

asked by jesse on March 20, 2012
100. ## English

Punctuating Sentences The goose bit the mailman on the leg. Your answer: 1. no change good ~~~~~~~~~~~~~~~~~~~ Punctuating Sentences With five gallons of gas. Your answer: 2.With five gallons of gas, the car will not run for long. good ~~~~~~~~~~~~~~~~~~~~

asked by Writeacher on May 29, 2007