1. chemistry

    suppose you have an unlimited supply of copper (II) chloride to react with iron. How many moles of copper would be produced by reacting 34 grams of iron with the copper(II) chloride solution?

    asked by sarah on October 29, 2010
  2. chemistry

    Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.00 M potassium chromate aqueous solution?

    asked by Katie on February 13, 2012
  3. chem

    In a solution prepared by mixing CH3OH with H2O the major species pesent are 1. a. CH3+, OH, and H2O 2. b. CH3O, H+, and H2O 3. c. CH3OH and H2O 4. d. CH3OH, H+, and OH I know i have to get an equation having trouble doing that!! please help!!

    asked by Mark on April 24, 2010
  4. Chemistry

    How mush CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution? g CaCl2 = (2.0L) *( 3.5 mol Cl-/1L) * (1mol CaCl2/ 2mol Cl-) *( 110.98 g CaCl2/ 1 mol CaCl2) = 5.549 g CaCl2 i don't think i did any of this right

    asked by Sydney on June 23, 2015
  5. Chemistry

    What is the molarity of HCL if it takes 16.5 mL of 0.100 M NaOH to titrate 10.0 mL of HCl? HCl + NaOH -> H2O + NaCl molarity = moles of solute/liters of solution

    asked by Selena on September 18, 2014
  6. chemistry

    What is the value of [OH-] in a 0.015 M CH3COOH solution? Ka = 1.8 x 10-5 I started by writing the equation: CH3COOH + H2O H3O+ + CH3COO- Ka= [H3O+][CH3COO-]/[CH3COOH]= 1.8 E-5 ... Now what? I don't understand where OH relates to this ...

    asked by Audrey on November 15, 2010
  7. Chemistry

    Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5 ✕ 10-3, Ka2 = 8 ✕ 10-8, and Ka3 = 6 ✕ 10-10. Calculate [H+], [OH ‾ ], [H3AsO4], [H2AsO4‾ ], [HAsO42 ‾ ], and [AsO43 ‾ ] in a 0.16 M arsenic acid solution.

    asked by Damian Clarke on March 24, 2014
  8. chemistry

    Lactic acid, HC3H5O3(aq) is a weak acid that gives yougurt its sour taste(Yeeeeecccckkk). Calculate the pH of a 0.0010 mol/L solution of Lactic acid. The Ka for lactic acid is 1.4 x 10^-4

    asked by Geroge B. on April 5, 2008
  9. physics

    An object(A) of mass 0.2kg strikes a second object (B) of mass 0.35kg that is initially at rest. Mass A has an initial velocity of +3m/s. A) Assume that the collision is entirely inelastic. calculate the final state for these objects. calculate the total

    asked by issak on July 19, 2011
  10. Algebra 2

    Introduction to quadratic equations? If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=-4/9+blank

    asked by Chelsea:) on April 24, 2012
  11. help

    Introduction to quadratic equations? If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=-4/9+blank

    asked by Chelsea:) on April 20, 2012
  12. Math

    how i solve this two equations ib order to find alpha and beta 2=cos(alpha)+1.341cos(beta) 2=sin(alpha)-1.341sin(beta)

    asked by mohh on April 30, 2010
  13. math-logs

    1. logaB = 2 and logbC = 4, evaluate logcA *the lowercase letters are bases ie. log(base a)B 2. solve for x: (log(base 2)x))^3 = log(base 2)x

    asked by randy on February 13, 2011
  14. Math help Geometery

    If, I ahve a trapezoid with two angles Angle 86 degrees and 41 degrees and angle A 133 degrees then,side b 10 Short base 6 How do I solve to get angle B?

    asked by Corey on April 16, 2013
  15. math

    I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

    asked by Nina on September 18, 2008
  16. calculus

    find the equation of a quadratic function whose graph is tangent at x=1 to the line whose slope8, tangent at x=-2 to solve the line with slope-4 and tangent to the line y=-8

    asked by erika on February 28, 2011
  17. Math

    there are 680 coins divided into 3 piles. The second pile has three times as many coins as the first. The third pile has 50 more coins than the second pile. Solve This problem using a tape diagram.

    asked by Melissa on April 29, 2017
  18. Math

    Write the inequality and solve for the following question: the result of 6 subtracted from a number n is at least 2, A. n-2>6;n>8 B. n-6>2;n>8 these arrows have a line under them.*** C. n+6>2;n2;n>4 these arrows have a line under them. Is the answer B?

    asked by beau on September 19, 2014
  19. elementary

    write a problem write a word problem involving the number of pages in a book.then write the numerical expression that you would need to use to solve your problem.

    asked by swetha on October 29, 2012
  20. math

    I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

    asked by Nina on September 18, 2008
  21. Pre-algebra

    Transform the formula. The area of a triangle A can be found with the formula A=1/2bh where b is the length of the base of the triangle and h is the height of the triangle. Solve the formula for h.

    asked by Jacob on January 20, 2011
  22. Serial Killers

    Could you maybe proofread over this essay I did on serial killers based on books I have read? Thanks! Jack The Ripper and Jeffrey Dahmer By:Bryce Screams and moans are heard all over the town as they unveil the corpse of Jack The Ripper's latest victim.

    asked by Bryce on February 26, 2012
  23. Derivatives

    Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also,

    asked by Daisy on October 3, 2013
  24. Thesis Statement

    I wrote a thesis statement on "The Red Badge of Courage" and if someone could revise it, it would be pretty helpful. "Crane believes war is neither glorious nor honorable, but rather a fiery blaze able to only destroy, caused by groups unaware of the

    asked by Laura on October 6, 2007
  25. Health

    3. Which is not a health professional who treats mental and emotional disorders? A psychiatrist B neurologist C social worker D psychologist 4. Arachnophobia, the fear of spiders, is an example of a(n) A. Personally disorder B. Anxiety disorder C. Mood

    asked by Iloveyou on November 1, 2016
  26. History

    How did a chronometer help European explorers during the Age of Discovery? It was a navigational tool used to calculate a unit of speed equal to one nautical mile per hour, helping to gauge a ship’s speed. It was navigational instrument used to measure

    asked by faith on January 28, 2019
  27. my college essay part one

    1. Academic preparation: How have you taken advantage of the educational opportunities you have had to prepare for college? I have taken advantage of the many great opportunities in my education to grow as a student and, most importantly, as a person. I

    asked by Anonymous on November 7, 2006
  28. Public High School AP Biology

    I got a question that comes from the 1990 released test #61 that I'm completley lost on 61. In a population that is in Hardy-Weinberg equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. What percentage of the

    asked by Kate on June 22, 2010
  29. Chemistry

    If 150 mL of 1.73 M aqueous NaI and 235 g of Pb(NO3)2 are reacted stoichiometrically according to the balanced equation, how many grams of Pb(NO3)2 remain? Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq) Molar Mass (g/mol) NaI 149.89 Pb(NO3)2 331.21

    asked by Jake on February 19, 2009
  30. Public High School AP Biology

    I got a question that comes from the 1990 released test #61 that I'm completley lost on 61. In a population that is in Hardy-Weinberg equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. What percentage of the

    asked by Kate on July 1, 2010
  31. English

    Which elements from “Amelia Earhart: Pioneer” show that it is not a tall tale? Select all that apply. A. It talks about an exciting person and events. B. It has a real person, not a larger-than-life character.*** C. It describes real events that could

    asked by Anonymous on March 15, 2018
  32. AP Biology

    I got a question that comes from the 1990 released test #61 that I'm completley lost on 61. In a population that is in Hardy-Weinberg equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. What percentage of the

    asked by Kate on July 2, 2010
  33. GRAMMAR

    PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. WRITE ONE COMPLETE SENTENCE FOR EACH WORD TO SHOW CLEARLY HOW IT DEFFERS IN MEANING FROM THE OTHER WORD IN THE GROUP. 1)price: the price of the apple in the market was $10 per Kg. 1)prize: I got

    asked by Sehr on January 3, 2010
  34. Physics

    Can someone please show me how to do this? A hockey player is standing on his skates on a frozen pond when an opposing player moving with a uniform speed of 12m/s skates by with the puck. After 3s, the first player makes up his mind to chase his oppponent.

    asked by Kim on August 27, 2005
  35. Microeconomics

    In the context of a supply-demand diagram of the low-skill labour market, a minimum wage above the competitive equilibrium will reduce employment relative to the competitive equilibrium. Show that the total revenue earned by labour may nonetheless

    asked by Juilet on February 18, 2007
  36. math

    write as a single logarithm: ln(x/x-1)+ ln(x+1/x)- ln(x^2-1) please show me the steps. thanx Michelle, I hope you know the three main rules of logs. 1. log (AB) = log A + log B 2. log (A/B) = log A - log B 3 log A^n - n log A Using these rules and guessing

    asked by michelle on March 13, 2007
  37. algebra

    In an episode from the TV show Futurama, Phillip J. Fry had $0.93 in his bank account in 2000. In the year 3000 it had grown to $4.3 billion! What was the percent interest rate (to three decimal places) if it had been continuously compounded? What was the

    asked by Andrea on December 12, 2012
  38. Chemistry

    someone help pls!! percentage of ethanol in the "blood" sample on a v/v basis is 0.0143% v/v. is the "blood" sample analysed over the limit for driving? (legal limit is 80mg alcohol per 100mL blood. assume the density of ethanol is 0.785g/mL and the

    asked by Becky on October 21, 2012
  39. Algebra

    A community group is planning the expansion of a square flower garden in a city park. If each side of the original garden is increased by 9 meters, the new total area of the garden will be 169 square meters. Find the length of each side of the original

    asked by Sandra on April 4, 2014
  40. math

    find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles i need to show

    asked by Natasha on April 4, 2017
  41. math

    The atmospheric pressure P(h) (in pounds per square inch) at a height h (in miles) above sea level on Earth satisfies a differential equation P' = -kP for some positive constant k. (a) Measurements with a barometer show that P(0) = 1.2 and P(9) = 0.7. What

    asked by MAin on February 18, 2016
  42. English/Lang. Arts

    Which of the following sentences from the article is an example of hyperbole? Here are the examples... A. Ivory-billed woodpeckers still graced the planet. B.According to experts, they need large areas of old-growth forest, including many big, dead trees,

    asked by Cassie on February 11, 2013
  43. hhs265

    The following two financial statements—a statement of activities (profit and loss summary) and a statement of financial position (balance sheet)—are for the Council on Social Work Education for fiscal year 1998. (See Tables 5.3 and 5.4.) Review these

    asked by hello on November 8, 2009
  44. Geometry

    So the directions say: Provide a counterexample to show that each statement is false. You can use words or make a diagram. These are the two questions that I'm stuck on: 1. If a line lies in a vertical plane, then the line is vertical 2. If x^2=49, then

    asked by rose.marie on September 5, 2018
  45. math

    a new car depreciated by 20% in its first year. each succeeding year it depreciated by 10% assume the car is still in good working condition after 10 years. if the car costs $25,000 calculate the value of the car after 10 years. express your answer to the

    asked by rio on December 23, 2010
  46. st stevens college baja

    A light inextensible string passes over a smooth light pulley and masses of 3 and 7 kg are attached to its ends.the masses are released from rest when 7kg mass is 1m above a horizontal table. 1) show that 7kg mass hits the table about 5/9 seconds if

    asked by matovu Emma on September 1, 2015
  47. algebra

    could you please show me how to do this problem? ballfield costs 14,850,00 to build. the cost per city resident to build it will be based on last census. New census shows population increased by 2200 people, which reduced the cost per resident $75. what is

    asked by ann on April 13, 2012
  48. algebra

    On a trivia game show, a contestent will answer 21 questions. A maximum of 200 points cana be earned. Some questions are worth 10 points and some are worth 8 points. Howmany of each point-value question must the contestent answer to earn the manimum number

    asked by mag on April 29, 2013
  49. Sublimes?

    Question: An unknown compound gave a melting point of 230C. When the molten liquid solidified, the melting point was redetermined and found to be 131C. Give a possible explanation for this discrepancy. My answer: The compound sublimed. How would

    asked by Sheryl on October 1, 2006
  50. maths

    four teenagers collected a total of £64 for charity. each teenager collected a whole number of pounds. the modal amount collected was £16. the range of the amounts collected was £2. work out how much each teenager collected?

    asked by rose on February 15, 2011
  51. english

    Thanks for help and websites. Here is what I've written about the building fence so far. please tell me if I'm on the right path. I'm for building the fence and tell me if i need to correct my sentence. Thanks! Due to borders being unsafeguarded, illegal

    asked by Kelly on October 31, 2010
  52. Algebra

    Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,

    asked by Vickie on March 1, 2012
  53. english

    read the following passage from the poem "eve to her daughters" it was not i who began it turned out into draughty caves, hungry so often, having to work for our bread, hearing the children whining, i was nevertheless not unhappy. where adam went i was

    asked by what up im jared on May 22, 2018
  54. World History

    How did the Enlightenment influence the American and French Revolutions? Notions of full social equality caused the slave populations to rise up and overthrow their masters in favor of a democratic system. Enlightenment philosophers published pamphlets in

    asked by Jay on March 28, 2019
  55. child daycare man.

    i have these question can you check my answers? 1-Which Of The Following Is An Obstacle To Learning For A Beginning Mover? A)Knowledge of what elements of the movement to focus on b) Chronic indifference characteristic between birth and age three c)

    asked by sarah on January 2, 2011
  56. History

    how did the Enlightenment influence the American and French Revolutions? a.Enlightenment philosophers published pamphlets in favor of monarchs’ divine right to rule, angering people into revolution. b.Ideas about natural rights philosophy caused people

    asked by Bri on January 17, 2018
  57. Social studies

    British political system in north America: Fill in the blanks with these words: In England: King George III Parliament In the American Colonies: Colonial Governors Assemblies Town Meetings 1. The king wanted to pass a law that raises taxes in the colonies

    asked by Happy Face on September 17, 2009
  58. history

    How did the Enlightenment influence the American and French Revolutions? Enlightenment emphasis on Protestant Christianity caused people to rebel against Catholic authority. Notions of full social equality caused the slave populations to rise up and

    asked by Bri on October 2, 2018
  59. World History

    how did the Enlightenment influence the American and French Revolutions? a.Enlightenment philosophers published pamphlets in favor of monarchs’ divine right to rule, angering people into revolution. b.Ideas about natural rights philosophy caused people

    asked by Collin on August 4, 2018
  60. Physiology and asthma

    CAN SOMEONE PLEASSE HELP ME... i am doing a physiology project on asthma and i have to do a summary/ chart on the question: Organization of affected organisms organism organ system organs tissues cell types/ functional units and i have noooo idea what it

    asked by Cori on February 1, 2007
  61. socials

    the other poster is Careless talk brings tragedy in wartime i search google and it also come up message i think message is think before you speak because passing on message turn small thing to big thing images used to convey message soldiers, spy, train

    asked by Mohammad on November 20, 2011
  62. physics

    Ball A is dropped from the top of a building of height h at the same instant that ball B is thrown vertically upward from the ground. When the balls collide, they are moving in opposite directions, and the speed of A is twice the speed of B. At what height

    asked by Jessica on August 10, 2014
  63. biology

    Which of the following is the definition of ecology? -the social movement with a goal to protect the environment -the recycling of human-made materials to reduce the waste going into landfills -the study of interactions among organisms and between

    asked by oto on September 13, 2016
  64. pre calculus

    1.) If h(x)= (fog)(x) and h(x) = 3 over the square root of x+3 , find g(x) if f(x)= 3 over the square root of x+2. my answer is x+1. Am I right? 2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone

    asked by Leo on April 6, 2013
  65. Math

    Rationalize the denominator of (3 * cube root of 12 - 8) / (cube root of 9 - cube root of 6). Please show steps and the full process to rationalize.

    asked by Thomas on October 19, 2017
  66. math proportions

    The remainder is a fraction (remainder/divisor). Why don't you use a calculator...for instance, 31/7 is 4 r 3, but it is easy enought to just put 31 divide by 7 in the calc. I have to solve a proportion, and the answer I come up with has a remainder. I

    asked by bobpursley on March 13, 2007
  67. Math: Parametric Equations

    The graph of the parametric equations x=cos(t) y=sin(t) meets the graph of the parametric equations x=2+4cos(s) y=3+4sin(s) at two points. Find the slope of the line between these two points. So far I've set up the system of equations cos(t)=2+4cos(s)

    asked by Katie on April 10, 2016
  68. AMA

    A force of 1.24 N pushes against an object with a mass of 0.16 kg for 3.00 min. The object does not move. What is the work done on the object by the force?

    asked by James on December 8, 2014
  69. Math

    susan spends 2 1/4 hours taking inventory and 1 1/2 hours restocking how many hours does susan work

    asked by Dawn on January 28, 2013
  70. Math

    Can you help me with this? I did this many times and got different answers each time. Find f. f ''(x) = 3e^x + 3sin(x) f(0) = 0 f(π) = 0 My work: f ''(x) = 3e^x + 3sin(t) f'(x) = 3e^x - 3cos(t) + C f(x) = 3e^x -3sin(t) + Cx + D 0=f(0)= 3e^0 - 3sin(0) +

    asked by Kay on June 23, 2011
  71. physics

    A force of 1.57 N pushes against an object with a mass of 0.16 kg for 3.00 min. The object does not move. What is the work done on the object by the force?

    asked by charles on July 11, 2014
  72. physics

    A force of 1.24 N pushes against an object with a mass of 0.16 kg for 4.00 min. The object does not move. What is the work done on the object by the force?

    asked by Sam on February 25, 2014
  73. physics

    A force of 1.35 N pushes against an object with a mass of 0.16 kg for 4.00 min. The object does not move. What is the work done on the object by the force?

    asked by Anonymous on September 27, 2011
  74. physics

    which of the following MUST necessarily happen if work is done: a. energy must be released b. energy must be used c. energy must be converted from one form to another d. it is not necessary that any of these Must happen

    asked by pricilla on October 11, 2010
  75. History

    Question: How did the policies of the Napoleonic Empire change Europe? A. Napoleon’s expansion policies led to a desire for self-rule throughout Europe. B. Policies of the Napoleonic Empire elevated the education system throughout Europe, which led to

    asked by Bri on January 17, 2018
  76. World History

    How did the policies of the Napoleonic Empire change Europe? Napoleon’s expansion policies led to a desire for self-rule throughout Europe. Napoleonic policies gave rise to the merchant class that went on to promote economic growth through innovation.

    asked by Jay on March 28, 2019
  77. Earth science

    Kathleen made the diagram below to show how scientific knowledge changes over time. Which word or phrase best describes what scientists would do at the point indicated by the blank? Original data + new data =blank= modified data. Which would be the answer

    asked by Stephie on September 4, 2014
  78. statistics

    A music industry researcher wants to estimate, with a 90% confidence level, the proportion of young urban people (ages 21 to 35 years) who go to at least 3 concerts a year. Previous studies show that 21% of those people (21 to 35 year olds) interviewed go

    asked by liz on November 13, 2016
  79. math

    A plane is flying due east at 600 km/h at a constant altitude. From an observation point P on the ground, the plane is sighted on a bearing of 320◦. One minute later, the bearing of the plane is 75◦ and its angle of elevation is 25◦. Show that the

    asked by Connor on July 17, 2017
  80. statistics

    A music industry researcher wants to estimate, with a 90% confidence level, the proportion of young urban people (ages 21 to 35 years) who go to at least 3 concerts a year. Previous studies show that 21% of those people (21 to 35 year olds) interviewed go

    asked by shane on March 19, 2017
  81. Math

    At the half time show a marching band marched in formation the lead drummer started at a point with coordinates (-3, -5) and moved 3 steps up and 1 step right. I have to write a rule to describe the translation and figure out the coordinates of the

    asked by Becki! on January 5, 2019
  82. statistic

    a restaurant that bills its house account monthly is concerned that the average monthly bill exceeds $200 per account. A random sample of twelve account is selected, resulting in a sample mean of $220 and a standard deviation of $12. Use a= 0.05. what is

    asked by HN on December 11, 2012
  83. microeconomic

    larry, curly, and moe run the saloon in town. larry wants to sell as many drinks as possible without losing money. curly wants the saloon to bring in as much revenue as possible. moe wants to make the largest possible profits. using a single diagram of the

    asked by lisey on November 22, 2010
  84. Calculus

    The CIA published data about foreign countries on its web page. In particular they show total population as well as population growth. If a student is looking at Russia, they will see that the total population of Russia is declining. When they look at the

    asked by Jamie on June 17, 2014
  85. to ms.sue-project part 3

    On the third page, show support for each trait listed on the second page. (PLEASE CHECK THIS FOR ME) 1. skillful 2. fair 3. brave 1.skillful- she can make spickd peaches and teach children and adults. 2. fair- she gave sam 6 jars of spiced peaches so he

    asked by Celest on June 20, 2012
  86. Physics

    a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the

    asked by Sarah on February 18, 2008
  87. Physics

    a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the

    asked by Sarah on February 18, 2008
  88. Physics

    a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the

    asked by Sarah on February 18, 2008
  89. math/algebra

    subtract. express in simplest form 13x/30 - 4x/ 15 = factor the first denominator. Get a common denominator. Combine terms. I will be happy to critique your work. ok 13x/30 - 4x/ 15 = This is where I get lost, I know that I have to fins the LCD but when I

    asked by Diana on July 15, 2007
  90. Physics

    Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω resistor? Answer 5 V 10 V 15 V 20 V I did the work as follows: 1/Req = 1/10 + 1/5. 1/Req = 0.3/1. Req(0.3) = 1(1). Req = 3.33

    asked by Jordan on July 13, 2013
  91. Science - chemistry

    Calculate the pH of a solution prepared by adding 36 cm3 of 0.15 M methanoic acid to 27 cm3 of 0.20 M NaOH. (Ka for methanoic acid = 1.77 x 10-4)

    asked by Teagan on June 6, 2014
  92. intermediate algebra

    use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginery solutions. Help please.

    asked by TB on August 22, 2012
  93. math

    Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. x2 = 5x + 6

    asked by Taina on June 20, 2011
  94. chemistry

    Calculate the percent ionization of a .31 molar solution of acetic acid. The ionization constant of acetic acid is 1.8 x 10^-5

    asked by Avery on March 1, 2016
  95. physics

    If 4.5 L of antifreeze solution (specific gravity = 0.80) is added to 4.5 L of water to make a 9 L mixture, what is the specific gravity of the mixture?

    asked by Anonymous on April 2, 2011
  96. algebra 1

    1)write an inequality a. the sum of three times a number and 2 lies between 7 and 14 b.seven less than 4 times a number is at most 44 and at least -24. 2)which is not a solution of -4 is less than or equal to 2-6x less than or equal to 8. 3) 2x-1

    asked by naomi on December 17, 2012
  97. math30

    The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?

    asked by alejandro on July 10, 2012
  98. chemistry

    After the lithium chloride dissolves and you get the heat from the Heat of Solution, what could you do to the dissolved lithium chloride so that you could reuse it for heating?

    asked by bea on May 14, 2012
  99. math30

    The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?

    asked by alejandro on July 11, 2012
  100. Chemistry 2

    we make a solution of water and ethylene glycol c2h4(oh)2 which contains 24 g of the glycol for each 74 g of water. What is the boiling point of ethylene?

    asked by Adam on October 11, 2016

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