# a certain reaction has the following generaln form

27,956 results, page 29
1. ## Chemistry

could you please check my work? thanks. For the reaction between reactants A and B below, if 4.925 moles of A is placed into a flask with excess B it is found that the amount of A remaining after 6.85 seconds is 2.737 moles. 2A (g) + B (g)-----> 3 C (g) a.

asked by Kevin on February 25, 2008
2. ## algebra

1.what is the simplest form of the producy sqrt 50x^7y^7 * sqrt 6 xy^4 2. What is the simplest form of the radical expression 4^3 sqrt 3x + 5^3 sqrt 10x 3. What is the simplest form of the radical expression sqrt 2 + sqrt5 / sqrt 2 - sqrt 5 if someone

asked by lee on December 2, 2012
3. ## Chemistry

Tap water that contains Cl− at a concentration of 50 ppm is used to prepare a 0.100 mol/L AgNO3 solution. Does a precipitate form? How much? I don't know how to find out how much precipitate will form but a precipitate will form based on my calculations

asked by Rez on May 31, 2015
4. ## CHM 152

The activation energy for a reaction is 37.6 kJ/mole. The rate constant for the reaction is 5.4 x 10-3 s-1 at 45 oC, Calculate the rate constant at 145 oC.

asked by Car on June 11, 2010
5. ## chem for Dr. Bob

In the reaction 2 H2(g) + S2(g) reverse reaction arrow 2 H2S(g), Kc = 6.28 multiplied by 103 at 900 K. What is the equilibrium value of [H2] if at equilibrium [H2S] = [S2]1/2?

asked by Jeena on March 24, 2010
6. ## chemistry

For the reaction H2(g) +S(s)->H2S(s), Triangle H= -20.2 kJ and triangle S= 43.1 J/K. WHen will the reaction be spontaneous? I know that it has to be negative to be spontaneous but i don't exactly know how to answer this question.

asked by trista on April 25, 2008
7. ## Chemistry ( HELP PLEASE!!! )

Consider the reaction H3PO4+ 3NaOH→Na3PO4+ 3H2O. How much Na3PO4 can be prepared by the reaction of 3.43 of H3PO4 with an excess of NaOH?

asked by Farrell on March 14, 2015
8. ## Physics

Before a nuclear reaction, there is 0.01000 kg of uranium. After the nuclear reaction, there is 0.00950 kg of uranium. How much energy was released? (h = 6.63 × 1034 Js)

asked by Pat on June 1, 2012
9. ## Chem13

The reaction CO(g) + 2 H2(g)--> CH3OH(g) was studied using a 5.19 L flask and an initial condition of 26.9 g CO and 2.34 g H2. At equilibrium, the flask contains 8.34 g CH3OH. Calculate Kc for this reaction.

asked by Ryan on May 3, 2011
10. ## Chemistry-Dr.Bob 222

1. The rate constant for a second order reaction has units of L mol^-1 s^-1. What are the units of the frequency factor, A, for a second order reaction?

asked by Student on February 19, 2016
11. ## calculus

In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + ½O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential

asked by Danny Simone on December 18, 2013
12. ## chemistry

In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + ½O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential

asked by Danny Simone on December 18, 2013
13. ## Chemistry

The equilibrium constant Kc for the following reaction is equal to 0.20 at 250°C. Calculate the equilibrium constant Kp for the reverse reaction at the same temperature. COCl2 (g) = CO (g) + Cl2 (g) I'm sorry.. English is a second language for me. After

asked by David on March 16, 2012
14. ## math

the center of three congruent small circles are collinear, and their diameters form the diameter of the large circle, shown, whose area is 81 pi units. what is the circumference of one of the smaller circles? express your answer in simplest radical form.

asked by arch on October 20, 2011
15. ## ap chemistry

I have a lot of questions actually. it's electrochemistry (which is obviously a bunch of fun) 2 electrodes Cr(s)/Cr3+ and Sn(s)/Sn2+ are combined to afford a spontaneous electrochemical reaction. the standard reduction potention in V for Cr3+ and Sn2+ are

asked by raaawr on May 4, 2009
16. ## Chemistry

What is an ionic solid? A. One positive ion and one negative ion bonded to form a solid B. Many nonmetal atoms bonded together to form a solid C. Many positive and negative ions bonded to form a solid D. Many metal atoms bonded together to form a solid I

asked by Morgan on December 16, 2014
17. ## Chemistry

The Kc for the reaction below is 4.8 X 10 ^-10. 1/2 N2 +1/2 O2 = NO what is the Kc for the following reaction? 2NO=N2 +O2

asked by Missy on November 2, 2010
18. ## chemistry

Write a balanced equation for the following reaction. Use whole number coefficients and subscripts appropriately. When hydrochloric acid is mixed with sodium hydrogen carbonate, the mixture fizzes. The fizzing occurs because the reaction produces a gas,

asked by Mike on February 1, 2016

1) The reaction A + B + C = products has a rate law rate = k times A times C squared. Which of the following will result in an increase in the rate constant for the reaction? #1 - increasing the temperature #2 - adding a catalyst #3 - doubling the

asked by Hannah on February 19, 2012
20. ## Chemistry

In an experiment, 0.0300 moles each of SO3(g), S02(g), and O2(g) were placed in a 10.0L flask at a certain temperature. When the reaction came to equilibrium, the cocentration of SO2(g) in the flask was 3.50x10^-5 molar. What is Kc for the reaction?

asked by Mitch on November 19, 2012
21. ## chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formulas and states of all products. Separate by comma. If there is no reaction, enter the formula and state of all ions in solution. magnesium

asked by bubble on January 20, 2010
22. ## chemistry

Reaction: CaCO3 + 2 HCl -> CaCl2 + CO2 + H2O Calculate the molarity of hydrochloric acid solution if an initial mass of 4.568g of CaCO3 was reacted with 25.0mL of the acid and 2.678g of CaCO3 remain after the reaction is complete.

asked by Jody on December 1, 2012
23. ## chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formulas and states of all products. Separate by comma. If there is no reaction, enter the formula and state of all ions in solution. aluminum

asked by Amrita on November 24, 2010
24. ## Physical Chemistry

When the reaction glucose-1-phosphate (aq) --> glucose-6-phosphate (aq) is at equilibrium at 25.0 degrees celcius, the amount of glucose-6-phosphate present is 95% of the total. A.) Calculate the Standard Delta G at 25.0 degrees celcius. B.) Calculate

asked by Angela on October 20, 2006
25. ## Chemistry

1) When we say calcium reacts readily with cold water, it means the reaction is moderately fast? 2) When we react Fe with dilute HCl, we get FeCl2 & H2. Why won't we get FeCl3? 3) Similarly, when we react Fe with CuSO4, displacement reaction occur to give

asked by candy on January 31, 2009
26. ## chemistry

If I use 0.524g of Mg to react with 60.0mL of 1.0M H+. The density of H+ is 1.00 g/mL, and the specific heat capacity equals what water's is. The Final and Initial temp. are 65.8 and 22. Mg(s) + 2H+(aq) ----> Mg2+(aq) + H2(g) so to find the deltaH of this

asked by emily on March 23, 2011
27. ## physics

A biophysics student measures her reaction time by having a friend drop a meterstick between her fingers. The meterstick falls 0.300 meters before she catches it. (a) What is her reaction time? (b) Estimate the minimum average speed of nerve impulses going

asked by tommy on January 26, 2016
28. ## chemistry

Which of the following reactions will be spontaneous at standard state? Not all the reactions are balanced, so make sure they are balanced first. The ΔG of formation data can be found in an appendix in your text book. You may select multiple answers. Any

asked by danny on February 7, 2015
29. ## physics

A biophysics student measures her reaction time by having a friend drop a meterstick between her fingers. The meterstick falls 0.300 meters before she catches it. (a) What is her reaction time? (b) Estimate the minimum average speed of nerve impulses going

asked by tom on January 26, 2016
30. ## Physics

A biophysics student measures her reaction time by having a friend drop a meterstick between her fingers. The meterstick falls 0.300 meters before she catches it. (a) What is her reaction time? (b) Estimate the minimum average speed of nerve impulses going

asked by Tom on January 25, 2016
31. ## Chemistry-Enthalpies of formation

"Synthesis gas" is a mixture of carbon monoxide and hydrogen that is used to synthesize a variety of organic compounds. One reaction for producing synthesis gas is 3CH4 + 2H2O + CO2 = 4CO + 8H2 Using enthalpies of formation, calculate the enthalpy change

asked by Brigette on April 13, 2009
32. ## Chemistry

At 627ºC, sulfur dioxide and oxygen gases combine to form sulfur trioxide gas. At equilibrium, the concentrations for sulfur dioxide, oxygen, and sulfur trioxide gases are .0060M, .0054M, and .0032M, respectively. a. Write a balanced equation for the

asked by dauntedorange on February 28, 2013
33. ## science

what happens when you mix calcium with oxygan Generally, one could expect Calcium Oxide (CaO) to form. In the presence of water, Calcium hydroxide will form.

asked by oli on July 15, 2005
34. ## Chemistry

!00.0 grams of Na2SO4 reacts with 150.00 grams of Ba(NO3)2to form NaNO3 and BaSO4. How many grams of barium sulfate will form?

asked by David on March 8, 2013
35. ## algebra 2

Would some one look at these problems and see if I got them right Thanks Just let me if they are wrong so I can go back over them 1.Write in simplest form 48/56 A. 6/7 2.Multiply 8x^3/5 *10/x^3 A. 16/x^4 3.Divide 4/x^7 / 12/x^3 A. 1/3x^2 4. divide

asked by CINDY on June 1, 2007
36. ## Chem1

The reaction N2O5 --> NO3 + NO2 is first-order in N2O5 and has a rate constant of 0.058/s. Calculate the rate of reaction when the concentration of N2O5 is 0.065.

asked by Ryan on May 3, 2011
37. ## ap chemistry

Calculate the standard reaction enthalpy for the reaction NO2(g) ! NO(g) + O(g) Given: O2(g) ! 2O(g) H = +498.4 kJ/mol NO(g) + O3(g) ! NO2(g) + O2(g) H = −200 kJ/mol 3O2(g) ! 2O3(g) H = +285.4 kJ/mol

asked by cheri on October 31, 2012
38. ## CHEmistry

The balanced reaction equation for combustion of Mg is: 2 Mg + O2 --> 2 MgO. In the reaction vessel you have 1.0 moles of Mg and 0.30 moles of O2. What is the limiting reactant? How many moles of MgO can you possibley make?

asked by Amanda on October 10, 2011
39. ## Chemistry

The combustion reaction of propane is described by the reaction. C3H8 + 5O2 → 4H2O + 3CO2. How many moles of O2 are required to generate 3 moles of CO2? 2.5 moles 3 moles 4 moles 5 moles

asked by Wesley on June 3, 2016
40. ## Chemist

2NO(g) + Cl2(g) --> 2NOCl(g) If the reaction is second order with reapect to NO and first order with respect to Cl2, a.write rate equation b. What is the order of chemical reaction?

asked by Syam on February 24, 2015
41. ## Chemistry&lt;--------

Sulfur dioxide in the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. One method for reducing SO2 emissions involves partial reduction ofSO2 to H2S followed by catalytic conversion of the H2S and the

asked by Tyler on April 21, 2016
42. ## Biochemistry

Amylase is secreted by your pancreas into your small intestine where amylase helps you digest the starches in your diet. Amylase does this because it is an enzyme, a protein that catalyzes a chemical reaction. In this case, amylase catalyzes the breakdown,

asked by qwerty on March 30, 2013
43. ## please i need help accounting

i have a promblem it gives me the information and form i understand the information but cant fill out the form because i don't know how and its 71 points out of the whole exam. is there anyway u can help me out if i give you the information. its about

asked by laura on September 28, 2009
44. ## Pre Cal

Due to my child being injured I missed this lecture at class. I am so lost now I read the chapter books but lets face it they don't make those in english. Write a function in factured form, then inexpanded polynomial form, having as zeros 2, -1 and 1 (plus

asked by Deb on March 9, 2008
45. ## chemistry

What is the general form for the simplest type of acid-base reaction? A. acid + base salt + water B. acid + base base + acid C. acid + base H+ + OH- D. acid + base solid + water

asked by jessie on September 11, 2016
46. ## Chemistry

How do I solve this problem? According to the following reaction, how many grams of mercury(II) oxide are needed to form 22.4 grams of oxygen gas? mercury(II) oxide (s) mercury (l) + oxygen (g)grams mercury(II) oxide

asked by Jamal on September 21, 2007
47. ## chemisry

Two half cells in a galvanic cell consist of one iron electroide in a solution of iron sulphate and a silver electrode in a silver nitrate solution a) Assume that the cell is operating as a galvanic cell. State the oxidation half reaction, the reduction

asked by Kelsey on August 25, 2010
48. ## Chemistry

I need chemistry help. I think 1. c, 2.b, & 3.a (please tell me why or why not and help me set up the problems if possible) 1.) The following half reaction has been balanced except for the electrons. How many and where should the electrons be included? 14

asked by Tyler on December 1, 2014
49. ## Algebra 1

1) what is the simplified form of (x-2)(2x+3)? Use the distributive property. A) 2x^2-x-6 B) 2x^2-6 C)2x^2-7x-6 D) 2x^2 +x-6**** 2) what is the simplified form of (3x+2)(4x-3) use a table. A)12x^2+18x+6 B) 12x^2+x-6 C) 12x^2+18x-6**** D)12x^2-x-6 3) what

asked by Tris on February 9, 2015
50. ## social studies

Describe the governments in Mexico and Central America. i think mexico form of government is a democratic form of government, can somebody please just tell me what form of government central america has. ms.sue can you help me

asked by devin on November 16, 2018
51. ## Chemistry

If the oxygen being fed into the system 4NH3(g) + 5O2(g) 4NO(g) + 6H20(g) + 950kJmol-1 is heated, how will the equilibrium shift? The reaction is exothermic, that is gives off heat, or raising the temperature. If heat is added, then the reaction will shift

asked by Fiona on May 1, 2007
52. ## chemistry

Calcium carbonate and sulfuric acid react according to the balanced reaction. CaCO3+ H2SO4 = CaSO4 + CO2 + H2O Starting from 300 grams of calcium carbonate with 3% impurities, what is the mass of calcium sulfate formed considering that the reaction is 90%

asked by wallace on August 21, 2018
53. ## 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)? A.the test liquid will

asked by lisha on June 8, 2010
54. ## chemistry

Tetraphosphorus trisulphide (P4S3) is used in the match heads of some matches. It is produced in the reaction 8P4+3S8 --> 8P4S3. Determine which of the following statements are incorrect, and rewrite the incorrect statements to make them correct. a. 4 mol

asked by Ana on April 6, 2010
55. ## chemistry

Sulfuryl chloride, SO2Cl2, decomposes to SO2 and Cl2 according to the reaction SO2Cl2(g) -> SO2(g) + Cl2(g) The reaction is first order in SO2Cl2, and the value of the rate constant, k, is 2.20*10-5 /s at 300K. (a) Calculate the intial rate of reaction

asked by ssss on May 31, 2013
56. ## Chem

Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to form isopentyl acetate (C7H14O2), a fragrant substance with the odor of bananas. CH3COOH + C5H12O -> C7H14O2 + H2O If the yield for the reaction is 45%, how many grams of the product are

asked by Dave on October 31, 2010
57. ## Arrhenius Question

The activation energy of a certain reaction is 32.9 kJ/mol At 25 degrees C the rate constant is 0.0160 units s-1 units. At what temperature in degrees Celsius would this reaction go twice as fast? Given that the initial rate constant is 0.0160 s-1 at an

asked by Amy on January 31, 2013
58. ## Chem

a 0.2000 grams sample of aluminum metal is added to a solution containing 1.0000grams of an unknown compound made of platinum and chloride ion. the reaction results in the formation of aluminum chloride and platinum metal. when the reaction is complete,

asked by Carley on March 1, 2014
59. ## english

14. Which sentence contains words in italics that form a gerund phrase? (A gerund is a verb form used the same way as a noun.) A. An interesting novel provides good entertainment. [B. Winning the race demanded speed and endurance.] C. I am going home. D.

asked by jake on January 4, 2012
60. ## math

Algebraically analyze the graph of the function f(x)= -6x^2+5x+2 . Find the vertex, axis of symmetry, range, minimum or maximum value, increasing and decreasing intervals, and zeros. Write the Quadratic equation in standard form. [Standard form is:

asked by shannon on September 30, 2008
61. ## chemistry

Which of the following is an example of a change of state? Answer Snow blows to form snow drifts. Sodium metal and chlorine gas form salt crystals. Dry ice disappears. Grilling a steak turns it brown.

asked by barbra on November 19, 2010
62. ## chemistry check

1. 48 KNO3+ _ C 12 H22O11-„³ ? CO2+ _ N2+ _ K2CO3+ _ H2O a. 12 b. 24 s c. 36 d. 48 The reaction is 48 KNO3 + 5 C12H22O11 --> 24 K2CO3 + 36 CO2 + 55 H2O + 24 N2 So the answer is C =36 2. 6 KNO3+ _ S + ? H2O„³ _ H2SO4+ _ N2+ _ K2SO4 a. 2 b. 4 c. 6 d. 8

asked by key on January 25, 2007

How do you turn these equation into a standard form? this is the standard form: ax+by=c here are the following equations: 2x = y + 1/2 y - 2 = 1/4x + 1 3y + 3 = 6x - 15 Please help and explain. Thank you.

asked by saranghae12 on March 5, 2012
64. ## Math

How do you write the square root of 3 in exponential form? or any other radical into exponential form

asked by Amanda on July 10, 2015
65. ## Algebra

how would you write y=8 in standard form of a linear equation? *isnt it already in standard form?????*

asked by nicole on November 14, 2013
66. ## Math

Divide. Write the answer in simplest form. 8 1/6 divided by 2 1/24. I got 4 5/6 is this right? If so what's the simplest form.

asked by Anonymous on October 13, 2014
67. ## precalculus

Given f(x)=x^2 -3x, find f(2x) in simplest form. so i got that you plug 2x in for x: f(2x)=2x^2-6x is that simplest form? or should it be further condensed into 2x(x-6)? thanks for your time i really appreciate it (:

asked by gilly on January 21, 2014
68. ## Algebra 2

(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

asked by Angel on April 5, 2012
69. ## 11th grade algebra 2

(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

asked by Angel on April 5, 2012

WHATS 111,111 IN PRIME FACTORED FORM AND IN TREE FORM?

asked by Aileen Jiminian on December 8, 2010
71. ## Honors Chemistry

Fe2O3 + 2Al --> 2Fe + Al2O3 How many grams of Fe will form when 97.6g Al2O3 form? Please & Thank you

asked by Ana on February 24, 2010
72. ## chemistry- DrBob

summarize part a ( the data i showed you) in a data table containing heading: anode, cathode, overall cell reaction, and cell potential . for each cell combination, write the anode half reaction, the cathode half reaction, the overall reaction in the cell

asked by amy on May 17, 2008
73. ## Algebra 2

Hey I am working on math homework that involves "Standard Form to Vertex Form by Averaging." My class is just starting to learn this today, but I am totally lost still on what to do. Can you please help? The formula for this is y=a(x - h)^2 + k the h is

asked by Tessa on February 9, 2010
74. ## chemistry

Find the false statement(s) about the thermochemistry experiment in which nitric acid is reacted with sodium hydroxide, and the enthalpy of the reaction is measured using an ice calorimeter. i. Regardless of which strong acid and strong base are used for

asked by Anonymous on November 16, 2008
75. ## chemistry

I, IV and V only 005 10.0 points When a chemical reaction comes to equilibrium, both the forward and the reverse reactions continue, but their rates are equal. For such a system at equilibrium at 300 K and 1.00 atm pressure, the change in Gibbs free energy

asked by Bob on January 22, 2011
76. ## Chemistry

In this experiment 4.0g of ferrous ammonium sulfate is used. Assuming everything else is added in excess; calculate the theoretical yield of the iron complex. Work through the entire reaction sequence; do not simply assume the number of moles of limiting

asked by Simin on February 12, 2018
77. ## chemistry

A coffee-cup calorimeter is filled with 50 mL of 1 M NaOH and 50 mL of 1 M HCl, both at room temperature. After the reaction is complete, the final temperature of the solution is 32.5 degree C. Using the specific heat of water, calculate the heat of

asked by meryl on September 23, 2018
78. ## Chemistry 400/ Chem 1A

A chemist mixes 5.216 g of potassium permanganate, 2.318 g of ethanol, and excess sulfuric acid. These chemicals react as follows: 4 KMnO4 + 5 C2H5OH + 6 H2SO4 ---> 4 MnSO4 + 5 CH3COOH + 2 K2SO4 + 11 H20 What mass of sulfuric acid is consumed in this

asked by Joey on September 16, 2014
79. ## chemistry

When 0.627 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 102C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction, H rxn,

asked by joshua on February 24, 2008
80. ## chemistry

When 0.627 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 102C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. The molar heat of reaction, H rxn,

asked by Anonymous on February 25, 2008
81. ## Chemistry

Which of the following is a condensation reaction? Two monomers combine when one adds to the double bond of another. Two monomers break away when one forms a double bond. Two monomers break away with the addition of a water molecule. Two monomers form a

asked by Sarah on May 10, 2012
82. ## chemistry

I have to calculate the ΔV= final volume-initial volume For the first trial the final volume was .005mL the initial volume was .03mL, which equaled to -.025mL. The volume was negative because it was exothermic reaction. For the second trial the final

asked by xx on November 23, 2014
83. ## chemistry

I have to calculate the ΔV= final volume-initial volume For the first trial the final volume was .005mL the initial volume was .03mL, which equaled to -.025mL. The volume was negative because it was exothermic reaction. For the second trial the final

asked by xx on November 22, 2014

23. Write the correct verb form in the blank: yo/encontrar. yo ___________ (2 points) 24. Write the correct verb form in the blank: ella/cerrar. ella ___________ (2 points) 25. Write the correct verb form in the blank: nosotros/querer. nosotros ___________

asked by Jack on February 27, 2013

23. Write the correct verb form in the blank: yo/encontrar. yo ___________ (2 points) 24. Write the correct verb form in the blank: ella/cerrar. ella ___________ (2 points) 25. Write the correct verb form in the blank: nosotros/querer. nosotros ___________

asked by Jack on February 27, 2013
86. ## chemistry

An environmental chemist needs to determine the amount of Fe+2 ions in a simple of polluted water from a rusting industrial plant. one procedure is to analyses the sample by using solution of sodium dochromate, Na2Cr2O7. identify the oxdising agent and the

asked by cletus on February 21, 2017
87. ## CHEM

I know I posted this question again but no one is really helping me. Can someone please help me as soon as possible. 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

asked by Akle on February 11, 2012
88. ## Chemistry

1) A reactions has a delta H of -76 Kj and a delta S of -117 J/K. Is the reaction spontaneous at 298 K? Work: Delta G= -76kJ/mol - 298K(-117J/K/1000) Delta G= -41.134 Spontaneous 2) A reaction has a delta H of 11 kJ and a delta S of 49 J/K. Calculate the

asked by Finn on August 18, 2015
89. ## chem

Complete the reaction? IF no reaction say so H2O C4H6O3 ====> H2O c) Cu ===== > H2O d) K2O=====> e) 2 NaNO3 + ht →

asked by dan on October 31, 2010
90. ## CHEMISTRY&gt; HELP QUICK! pls

Calculate the reaction free energy of: H2(g) + I2(g) 2HI(g) when the concentrations are 0.026 mol L-1 (H2), 0.33 mol L-1 (I2), and 1.84 mol L-1 (HI), and the temperature is 700K. For this reaction Kc= 54 at 700 K. +11.6 kJ mol-1 0 kJ mol-1 -11.6 kJ mol-1

asked by Lucinda on September 5, 2010
91. ## Chemistry

In the derivation of this expression: [ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator is the only form present in the most acidic solution. Is this a valid assumption? Why or why not? Support your answer by

asked by Cristian on October 1, 2012
92. ## college chemistry

In the derivation of this expression: [ln]/[HIn]A# 2 * A#1,acid/A# 2,basic * A#1 We assumed that the HIn form of the indicator is the only form present in the most acidic solution. Is this a valid assumption? Why or why not? Support your answer by

asked by Cristian on October 2, 2012
93. ## chemistry

what is the oxidation half reaction, reduction half reaction, and the complete balanced reaction of the following? (a) Al(s) + MnO4‾(aq) → MnO2(s) + Al(OH)4‾(aq) (b) Cl2(g) → Cl ‾(aq) + ClO ‾(aq) (c) NO2‾(aq) + Al(s) → NH3(g) + AlO2‾(aq)

asked by Anonymous on October 28, 2010
94. ## A.P Chemistry

A different rigid 5.00L cylinder contains 0.176mol of NO(g) at 298 k. A 0.176mol sample of 02(g) is added to the cylinder, where a reaction occurs to produce NO2(g) (d) write the balanced equation for the reaction. (e) calculate the total pressure, in atm,

asked by Brianna on October 23, 2006
95. ## Another A.P Question

A different rigid 5.00L cylinder contains 0.176mol of NO(g) at 298 k. A 0.176mol sample of 02(g) is added to the cylinder, where a reaction occurs to produce NO2(g) (d) write the balanced equation for the reaction. (e) calculate the total pressure, in atm,

asked by Brianna on October 24, 2006
96. ## biology

Initially, how do skeletal muscles (the type of muscle attached to bones) make ATP? write the reaction for this procss (Crp +ADP => Cr + ATP) as a 'coupled' reaction, identifying the exergonic and endergonic reactions. what would this type of ATP

asked by livleen on April 29, 2012
97. ## Biochemistry

Complete hydrolysis of 25 mM ethyl acetate in an enzyme esterase catalyzed reaction is carried out in a 40 mM NaCl solution buffered by 0.2 M Tris-Cl, pH 9.1. What is the pH at the end of the reaction? (For Tris base, which is the abbreviation for Tris

asked by Melissa on February 7, 2011

Complete hydrolysis of 25 mM ethyl acetate in an enzyme (i.e., esterase)-catalyzed reaction is carried out in a 40 mM NaCl solution buffered by 0.2 M Tris-Cl, pH 9.1. What is the pH at the end of the reaction? (For Tris base, which is the abbreviation for

asked by Kim on February 8, 2011
99. ## Chemistry

Even when a mechanism is consistent with the rate law , later experimentation may it to be incorrect or only one of several alternative. As an example, the reaction between hydrogen and iodine has the following rate law: rate=k[H]^3[I]2. The long accepted

asked by Munavvar on February 28, 2015
100. ## Pre-Calc/Trig

How?? I only know how to convert standard form functions into intercept form, but I do not understand how to do this. Convert the functions into standard form. 1.y=2(x-4)(x+3) 2.y-2=-3(x+4)^2

asked by Anonymous on October 27, 2014