1. AP Chemistry

    Calculate ΔHrxn for the following reaction: C(s)+H2O(g)→CO(g)+H2(g) Use the following reactions and given ΔH values: C(s)+O2(g)→CO2(g), ΔH= -393.5 kJ 2CO(g)+O2(g)→2CO2(g), ΔH= -566.0 kJ 2H2(g)+O2(g)→2H2O(g), ΔH= -483.6 kJ

    asked by Q on December 7, 2015
  2. Chemistry

    Consider the following chemical equation. SO2(g) + O2(g) → SO3(g) What volume of sulfur dioxide gas reacts with 37.5 L of O2? The reaction conditions are 875°C and 1.00 atm pressure.

    asked by Kalen on December 5, 2010
  3. chemistry

    Write a balanced chemical reaction to show the dissociation of solid magnesium chloride (MgCl2) in water, indicate states of the reactants and products

    asked by Jessica on October 15, 2010
  4. Chem

    How many grams of CS2 can be prepared by heating 11.0 moles of S2 with excess carbon in 5.20 L reaction vessel held at 900 kelvin until equilibrium is attained?

    asked by Mer on February 9, 2014
  5. Chemistry

    Which processes are taking place in the following reaction? 2CO(g) + O2(g) ⇌ 2CO2(g) A. displacement and reduction B. synthesis and decomposition C. ionization and recombination D. sublimation and evaporation Is B right?

    asked by Coco on August 9, 2015
  6. chemistry

    CH3CH2CHCHCH3 --HIO4-> | | HO OH Include all steps of reaction, any additional reagents/conditions needed and the products formed. ive been stuck on this for hours need help please

    asked by CHRIS on November 13, 2012
  7. science

    A test liquid has a density of 1.1 g/ml. When you pour some of it into a cup of water, what will happen (assuming that their natures are such that they don't mix and that there is no chemical reaction between the two substances)?

    asked by Anonymous on January 8, 2011
  8. college chem

    How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 15C?

    asked by debra on March 8, 2010
  9. chemistry

    Calculate the cell potential for the following reaction as written at 53 °C, given that [Zn2 ] = 0.862 M and [Ni2 ] = 0.0110 M. Standard reduction and oxidation potentials can be found here. Zn(s) + Ni^2+(aq) --> Zn^2+(aq) + Ni(s)

    asked by Katie on February 29, 2012
  10. CHEMISTRY

    IF AFTER PRECIPITATION OF THE GROUP I CATIONS AS CHLORIDES BY THE REACTION WITH HCL NEARLY ALL OF THE PRECIPITATE DISSOLVES IN THE HOT WATER. WHAT ION IS MOST PROBABLY PRESENT AND WHICH IONS ARE MOST PROBABLY ABSENT?

    asked by HELPP NO IDEA on October 16, 2011
  11. physics

    An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

    asked by Amy on May 8, 2013
  12. Chemistry

    consider the reaction at 298K. 2H2S(eq) + SO2-----3S(s) + 2H2O (g). Calculate Grxn under these conditions. PH2S=2atm Pso2 =1.5 atm PH2O + 0.01atm

    asked by Tammy on May 1, 2015
  13. science

    ht tp :/ /i1. ti nypi c.c om/ 7yr papx.j pg I did this experiment about antacids and my hyppothesis is that "If I use the generic antacid to create a neutralization reaction, it will have the same effectiveness of the name brand because...." I'm not sure

    asked by kelly on January 11, 2008
  14. chemistry

    1.15g of acetylsalicylic ia recovered from an aspirim synthesis reaction that began with 2g of salicylic acid, what would be the percentage yield for the preparation? show your computations

    asked by Rogylyn on September 1, 2014
  15. Chemistry

    For the reaction Ag2S 2Ag + S2 what happens to the equilibrium position if aqueous ammonium sulfide is added A. Shift left B. Shifts right C. Does nothing D. Doubles E. Halves

    asked by Monique on November 11, 2011
  16. Organic chemistry

    Suggest an appropriate reducing reagent for the following substrates and predict the product of the reaction: a) 2-hexanone b) ethyl 4-nitrobenzoate (reduction of the nitro group) c) hexanal

    asked by Jane on February 7, 2009
  17. Chemistry

    For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.650 M solution of FeCl2 is required to react completely with 8.58 × 1021 molecules of O2?

    asked by Olivia on February 23, 2015
  18. Chemistry

    The rate constant for this first order reaction is 0.440s-1at 400 C. A to products How long(in seconds) would it take for the concentration of A to decrease from 0.740 M to 0.290 M?

    asked by Josh on July 19, 2011
  19. Chemistry 2

    Which is the oxidizing agent in the reaction below. Cr2O72- + 6S2O32- +14H+ > 2Cr3+ + 3S4O62- +7H20 A. Cr3+ B. S4O62- C. Cr2O62- D. S2O32- E. H+ I believe it's D or is it C not 100% sure please help. THANKS

    asked by Debbie on April 5, 2012
  20. sports

    why is strenght endurance speed flexibility body composition agility balance co-ordination power reaction time all important to an athlete

    asked by elizabeth on March 13, 2009
  21. chemistry

    2CH3OH(g)→2CH4(g)+O2(g)ΔH=+252.8kJ For a given sample of CH3OH, the enthalpy change during the reaction is 82.2kJ . How many grams of methane gas are produced?

    asked by ihatechem on October 29, 2014
  22. Chemistry

    Complete the Bronsted- Lowry reaction, placing each product by its appropriate label. HCO3^-+HNO2 (double arrows) need a spot for acid and for base.

    asked by Allison on December 5, 2014
  23. Chemistry!

    a)consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP? b) What is the freezing point of an aqueous solution that boils at 102.1 C?

    asked by Justin on April 26, 2010
  24. Chemistry

    Calculate how many grams of the product(s) would be produced by complete reaction of 0.125 mole of the first reactant. CaCO3 + 2HCl --> CaCl2 + CO2 + H2O

    asked by Lindsey on April 22, 2012
  25. Chemistry

    Write a balance equation for the reaction of nitric acid (HNO3) with each base solution : [1]. NaHCO3, [2]. MgCO3. ( Please include the phases of the substance)

    asked by Jennifer on December 8, 2012
  26. Chemistry

    I'm having alot of trouble in chemistry. Currently were studying chemical equations and reactions. I would like to know if this is a single or double replacement reaction. 2Li + H2O ---> 2LiOH + H2

    asked by Alexandria on March 13, 2009
  27. Chemistry

    Consider the reaction 2D2(g)+O2(g)→2D2O(l) What is the mass of heavy water, D2O(l), produced when 7.65g of O2(g) reacts with excess D2(g)? Express your answer with the appropriate units.

    asked by Brittany on April 14, 2015
  28. chemistry

    If after precipitation of the Group I cations as chlorides by the reaction with HCl, nearly all of the precipitate dissolves in the hot water, what ion is most probably present and which ions are most probably absent?

    asked by J on July 22, 2012
  29. chemistry

    A 31.5 ml aliquot of H2SO4 of an unknown concentration was titration with 0.0134 M NaOH. write the balanced chemical reaction with the correct states of matter.

    asked by txqt320 on April 22, 2010
  30. science

    I did the work for this lab but forgot to record the data. It was a double displacement of CuSO4 and NaCO3. If someone could help me with the visual reaction that would help me out a lot. I know what to do I just don't remember what happens.

    asked by Teegan on October 19, 2014
  31. science-chemistry

    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

    asked by Anonymous on August 22, 2017
  32. chemistry

    Using the balanced equation, determine the number of NaNO3 units in the visualization in the reaction. 3Ca(NO3)2(aq) + 2Na3PO4(aq) → 6NaNO3(aq) + Ca3(PO4)2(s)

    asked by eng on January 20, 2010
  33. Chemistry

    Identify the precipitate in this reaction: calcium nitrate reacts with sodium phosphate. 2Na3PO4 + 3Ca(NO3)2--->6NaNO3 + Ca3(PO4)2 is that right ?

    asked by Ciaria on March 3, 2015
  34. Organic Chemistry

    what is the name of the amide that is formed by the following reaction: Butanoic acid + Methylamine? - CH3CH2CH2COOH + CH3NH2 ---> product + H2O? i put n-methylbutyramide and they counted it wrong.

    asked by Tina on January 21, 2010
  35. Chemistry

    Exercise 14.55 Consider the reaction: NiO(s)+CO(g)⇌Ni(s)+CO2(g) Kc=4000.0 at 1500 K When calculating the answer, do not round to the appropriate number of significant figures until the last calculation step..

    asked by Nevaeh on March 6, 2016
  36. marketing

    How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?

    asked by jane on July 15, 2012
  37. chemistry

    how many moles of NH3 does it take to make 8.0 mol of H20 according to the reaction shown below? 4NH3 + 5O2 --> 4NO + 6H2O I REALLY NEED HELP WITH THIS AS I AM LOST. PLEASE PROVIDE NOTES.

    asked by kristen on September 13, 2016
  38. pre-ap chemistry

    HOW MANY GRAMS OF OCTANE WOULD BE NEEDED TO RELEASE 3,500 kJ OF HEAT? 2C8H18 + 25O2-----> 16CO2 + 18H2O DeltaH= -5,530 kJ/mole of reaction

    asked by Matthew on May 2, 2018
  39. chemistry

    Mno4- + So3-2 = Mno2 + sO4-2 (in neutral solution,but H+ ions will appear in the final question) solve this redox reaction and give me the method also Thank you

    asked by taylor on January 10, 2016
  40. chemistry

    How to balanced chemical equation and identify the type of reaction for solid ammonium nitrate decomposes into dinitrogen monoxide gas and water

    asked by judy on February 1, 2017
  41. Chemistry

    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

    asked by Anonymous on October 21, 2014
  42. Chemistry

    How could the following transformation could be carried out. C6H5C=CH --> C6H5CH2CH20H I don't know how you would get a primary alcohol because I thought that following Markovnikov's rule any reaction would involve addition onto the other carbon.

    asked by Beth on April 18, 2009
  43. chemistry

    if 45 g of calcium carbide reacts with 23 g of water, how many liters of acetylene can be produced, assuming the reaction goes to completion at 60 degrees fahrenheit and 763 mmHg

    asked by Anonymous on February 18, 2013
  44. general science

    A test liquid has a density if 1.1g/ml. when you pour some of it into a cupof water, what will happen ( assumming that their natures are such that they don't mix and that there is no chemical reaction between the two subtances?

    asked by sherrie on November 15, 2010
  45. PRE-CAL

    Complete the table assuming continuously compounded interest. (Round your answers to two decimal places.) Initial Investment== ? Annual % Rate== ? Time to Double== 11YRS Amount After 10 Years== $1600 Using formula A=Pe^rt ?

    asked by RACHEL on September 17, 2016
  46. physics

    a large aircraft accelerates sown the runway for a distance of 3000m before leaving the ground. It then climbs at a steady 3 degree angle. After the plan has travelled 4000m along this new trajectory, how high is it and how far horizontally is it from its

    asked by Brian on September 9, 2014
  47. Physics

    A cow pat was thrown 81.1m. Assuming the initial launch angle was 45 degrees, and neglecting air resistance, determine the total time the projectile was in flight. a) 4.83s b) 5.28s c) 4.07s d) 5.87s e) 4.35s

    asked by Cody on October 9, 2012
  48. math

    Complete the table for a savings account in which interest is compounded continuously. (Round your answers to four decimal places.) Initial Investment: $350 Annual % Rate: % Time to Double: yr Amount After 10 Years: $435.21

    asked by madison on June 1, 2018
  49. Algebra II

    Write the simplest polynomial function with the zeros 2-i, square root of 5, and -2. I know that the conjugates are 2+i and -the square root of five, but when I multiply it comes out wrong. not sure A toy rocket is launched from the ground level with an

    asked by K. on April 10, 2007
  50. physic

    the speed boat has a acceleration of 2.0 m/s2 if the initial velocity of the boat is 6.0 m/s2. find the boat displacement after 8.0 seconds?

    asked by junrex on July 13, 2014
  51. calculus

    Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is

    asked by kwack on September 7, 2010
  52. physics/calculus 3

    A ball is thrown at an angle of 45 degrees to the ground. If the ball lands 90 m away, what is the initial speed of the ball?

    asked by Anonymous on February 26, 2012
  53. Math

    Use Newton's method to approximate a root of the equation 5sin(x)=x as follows. Let x1=2 be the initial approximation. The second approximation x2 is: and the third approximation x3 is:

    asked by Blair on July 19, 2008
  54. chemisty help

    for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. Ti + 2F2 to make TiF4 There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest.

    asked by Becky on March 1, 2007
  55. Physics

    A ball is thrown vertically upward from a window with an initial velocity of 10m/s. if it hits the ground below the window 5.0s later, what is the height of the window...can you tell me the steps on how to do this please...

    asked by Luellen on January 19, 2013
  56. Chemistry

    a compound decomposes with half life of 8seconds and is independent of concentration.how much time is consumed to convert the concentration of one sixteenth of its initial concentration?

    asked by Maria on October 23, 2012
  57. physics

    You accelerate your 1500 Kg from 2 m/s to 12 m/s in 2 seconds. How do you determine the cars acceleration initial momentum final momentum change in momentum the force required to do this?

    asked by Kelley on January 11, 2016
  58. Physics

    Jen drops a ball with a mass of 0.100 kg from a height of 20.0 m The initial downward velocity of the ball is 5.00 m/s. What is the kinetic energy of the ball after it has fallen 10.0 m?

    asked by Anonymous on September 13, 2012
  59. Physics

    A ball is dropped from rest from a height of 20.0m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Alex on August 31, 2012
  60. physics

    A body is thrown vertically upward from the top of the cliff 50m high. Has the body reaches the ground in 10. What is the initial velocity of body?

    asked by Anonymous on August 21, 2010
  61. physics

    A body is thrown vertically upward from the top of the cliff 50m high. Has the body reaches the ground in 10. What is the initial velocity of body?

    asked by Anonymous on August 21, 2010
  62. physics

    A person has the ability to jump with an initial speed of 6.0 m/s at an angle of 35 degree with the ground. a. How long will the person be in the air? b. How far horizontally will the person travel?

    asked by sydney on December 16, 2013
  63. physics

    Water is running out of a faucet, falling straight down, with an initial speed of 0.50 m/s. At what distance below the faucet is the radius of the stream reduced to one-half its value at the faucet?

    asked by john on January 17, 2011
  64. physics

    An ideal gas, for which gamma=1.5, undergoes an adiabatic expansion in which its volume is doubled. if the initial temp if the gas is 27 C, what is the final temperature of the gas?

    asked by key on September 4, 2013
  65. Physics

    A ball is dropped from rest from a height of 20.0 m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Anonymous on August 28, 2011
  66. physics. HELP

    A person has the ability to jump with an initial speed of 6.0 m/s at an angle of 35 degree with the ground. a. How long will the person be in the air? b. How far horizontally will the person travel?

    asked by sydney on December 16, 2013
  67. phy

    During an isovolumetric process, the pressure on the gas is doubled and the amount of gas is tripled. If the initial temperature of the gas is 300k, what is thefinal temperture.

    asked by brandy on December 4, 2010
  68. Physics

    A ball is dropped from rest from a height of 20.0m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Alex on August 31, 2012
  69. Chemistry

    Select the true statement below. A. a spontaneous redox reaction equation will have the stronger oxidizer and stronger reducer as products B. a salt bridge should contain ions that will participate in the redox reaction C. in a voltaic cell, the difference

    asked by Nat on August 5, 2013
  70. Physics

    A body starts from rest and accelerates to a velocity of 5m/s in 20s. It then maintains this velocity for 10s and then decelerates to rest in further 10s. (a) Draw a velocity – time graph of the motion (b) Calculate the initial acceleration (iA body

    asked by Mary on October 27, 2015
  71. Is anyone here a chemistry genuis?

    The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

    asked by timmy on April 9, 2010
  72. Chemistry (Check)

    Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of

    asked by Anonymous on November 2, 2015
  73. physics

    Jordan tosses a ball upwards with an initial velocity of 14.0 m/s. What is the displacement in meters of the ball during the first 2.5 seconds after she threw it? (don't include units in the answer, use 10.0 m/s2 for g and use the upward direction as

    asked by jen on January 11, 2012
  74. physics

    a football is kicked with an initial speed of 80 m/s at an angle of 30 degrees above the horizontal. A. what is the maximum height that the ball attains? b. what is the balls hang time? (how long is it in the air) c. what is the range of the ball? (how far

    asked by Ely on October 20, 2016
  75. physics

    After fixing a flat tire on a bicycle you give the wheel a spin. (a) If its initial angular speed was 5.41 rad/s and it rotated 13.7 revolutions before coming to rest, what was its average angular acceleration?

    asked by aok on November 5, 2010
  76. Science

    A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at the rate of 1kg/s and at a speed of 5m/s. Find the initial acceleration of the block.

    asked by Kushagra on February 10, 2012
  77. physics

    A putting green is located 240ft horizontally and 64ft vertically from the tee. What must be the magnitude and direction of the initial velocity if a ball is to strike the green at this location after a time of 4 seconds?

    asked by Jonathan on January 27, 2011
  78. Science

    A projectile of mass 0.650 kg is shot straight up with an initial speed of 20.0 m/s. If the projectile rises to a maximum height of only 12.4 m, determine the magnitude of the average force due to air resistance.

    asked by Anonymous on December 14, 2010
  79. 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
  80. physics

    A(n) 2864 kg van runs into the back of a(n) 856 kg compact car at rest. They move of together at 7.5 m/s. Assuming no friction with the ground, find the initial speed of the van. Answer in units of m/s.

    asked by luma on December 20, 2015
  81. Physics

    A projectile is fired at 32.5° above the horizontal. Its initial speed is equal to 160.0 m/s. Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored. What is the maximum height reached by the

    asked by Anonymous on December 2, 2015
  82. physics

    When a man throws a ball vertically up his watch fall down from his hand.if the initial speep of the ball is 20m/s from a building.what will be its velocity when it reaches the ground if the height difference b/n them is 100m?

    asked by minas on April 2, 2012
  83. Physics

    A volleyball is launched straight up at an initial velocity of 2.3 m/s. It is then spiked by a taller player 0.8 meters above the launch height. How high did it rise, and how long did the volleyball remain in the air between the players?

    asked by Jessica on October 29, 2014
  84. physics

    a brick is thrown upward from the top of a building at an angle of 25 degrees to the horizontal and with an initial speed of 15 m/s. what is the velocity of the brick at the max height? (the answer is 13.6 but I don't understand why or how to do it) (i

    asked by Anthony on January 31, 2017
  85. physics

    31. (II) a shotputter throws the shot with an initial speed of 15.5m/s at a 34.0* angle to the horizontal. Calculate the horizontal distance traveled by the shots if it leaves the athlete’s hand at a height of 2.20m above the ground.

    asked by Anonymous on December 8, 2010
  86. pysics

    550 g of water (cw = 4186 J/kg.K) at 75°C is poured into an 855 g aluminum (cw =900 J/kg.K) container with an initial temperature of 11°C. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? Select one: a. 75

    asked by nick on May 17, 2016
  87. math

    In a variant of the game of Nim, two players alternate taking turns in removing 1, 2, or 3 beans from a pile. The object is to remove the last bean. If the initial pile has 29 beanss, should you want to go first or second to guarantee a win?

    asked by Samual on January 11, 2011
  88. physical sciences

    A child throws a coin vertically downwards from a window of high building with an initial velocity of 15 m/s.Ignore the effect of air friction. Calculate vhow lonfg the coin falls

    asked by tebogo on February 12, 2013
  89. university of saint la salle

    a projectile is fired with an initial velocity of 800 ft/s at a target of 12000 ft downrange and at an elevation of 3000 ft above the ground, neglecting air resistance, determine the angle(s) that can be used to reach the target.

    asked by scarlette abegail on December 7, 2015
  90. physics please help

    A hoodlum throws a rock straight down from the roof of a building 109m high. If it takes 2.40s to hit the ground below, with what initial speed was the rock thrown? Please show all work

    asked by Georgy on December 20, 2014
  91. Physics

    A 7200 lb airplane lands on an aircraft carrier with a speed of 72 ft/s. The plane is caught by an elastic band (k=998 lb/ft) that has an initial stretch of 5.6 feet. What is the maximum distance the band is stretched?

    asked by sandhu on November 28, 2010
  92. HELP PLEASE

    A 2.0kg block of wood starts at rest and slides down a ramp. Its initial height is 12.0m. If the final velocity of the block is 13m/s, determine the energy of this system that has been turned into heat.

    asked by Student12 on March 28, 2017
  93. physics

    A proton has an initial speed of 7·105 m/s. It is brought to rest by an electric field. a.) What is the magnitude of the voltage difference needed to bring this charge to rest? answer: 365.313*7v, WHY

    asked by dan on February 22, 2015
  94. medical coding

    Witch one of the following subcategories of the E/M section has separate codes for new and establised patients? A.office and other outpatients B. Hospital observation services C. initial inpatient consultation D. Emergency Department services

    asked by Robin on October 22, 2010
  95. physics

    a projectile has a maximum range R=150m.find its initial velocity and the corresponding maximum height it reaches. at what angle should it be aimed to hit a target at the same level that is located at a distance x=100m from it?

    asked by ali on November 30, 2014
  96. U.S. History

    Is there a good online source of information to compare and contrast the initial formation of two states—Virginia and Pennsylvania—by evaluating and listing the similarities and differences of the first state constitution for each state.

    asked by John on March 23, 2010
  97. physics

    A block with initial velocity of 3 m/s slides 9m across a rough horizontal surface before coming to rest. What is the coefficient of kinetic friction? V^2=Vo^2+2ax 0=9+18x a=-1/2 Ffr=mukFn Sigma F=ma ma=mukFn

    asked by Grace on January 27, 2015
  98. physics

    A cannonball is fired horizontally from the top of a cliff. The cannon is at height = 70.0 above ground level, and the ball is fired with initial horizontal speed . Assume acceleration due to gravity to be = 9.80 .

    asked by Anonymous on February 4, 2011
  99. Physics

    Ice of mass 51.5 g at -10.2° C is added to 218 g of water at 13.5° C in a 111 g glass container of specific heat 0.200 cal/g-°C at an initial temperature of 24.9° C. Find the final temperature of the system.

    asked by BrandiB123456789 on December 10, 2013
  100. College Chemistry

    calculate the initial concentration of SCN- ions and Fe3+ ions when a solution was prepared by mixing 3.00mL of 0.00280M KSCN, 6.00 mL of 0.250M Fe(NO3)3 and 16ml of 0.050M HNO3.

    asked by Cat on February 10, 2014