1. Chemistry

    A conductivity cell was calibrated using KCl solution (0.01 mol dm^-3) with a conductivity of 0.141 S m^-1 and the resistance was found to be 520 Ohms. The resistance of a saturated solution of silver chloride was found to be 3.8 x 10^5 Ohms. Calculate the

    asked by Alice on January 4, 2009
  2. MATH HELP

    The south edmonton pet shop has several parrots and dogs for sale. There are a total of 24 heads and 82 legs in the display cages. A) Write a system of linear equations to represent the number of parrots, p, and the number of dogs, d, for sale. p+d = 24

    asked by Anonymous on January 10, 2011
  3. Data analysis and statistics

    I don't know where to begin with these problems would someone please call me Find the median of each set of numbers 14. 1, 4, 9, 15, 25, 36 Find the mode of each set of numbers. 9, 8, 10, 9, 9, 10, 8 41, 43, 56, 67, 69, 72 Statistics. A salesperson drove

    asked by Theresa on April 13, 2008
  4. Chem (Help!)

    I need help in using gas laws to solve problems. I need help with this question: What is the pressure in atmospheres exerted by a 0.500 mol sample of oxygen gas in a 10.0 L container at 298 K? Also what formula would I use to solve the pressure in this

    asked by Lisa on April 29, 2008
  5. Data analysis and statistics

    I don't know where to begin with these problems would someone please call me Find the median of each set of numbers 14. 1, 4, 9, 15, 25, 36 Find the mode of each set of numbers. 9, 8, 10, 9, 9, 10, 8 41, 43, 56, 67, 69, 72 Statistics. A salesperson drove

    asked by Theresa on April 13, 2008
  6. Algebra 2

    PLEASE SHOW WORK FOR ALL PROBLEMS, I WANT TO UNDERSTAND HOW TO DO IT, NOT JUST THE FINAL ANSWER :) 1. find all the zeros of the equation -3x^4+27x^2+1200=0 2. Use the Binomial Theorem to expand the binomial (d-4b)^3 3. What is the equation of y=x^3 with

    asked by Mike on December 16, 2016
  7. science-biology

    In lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell". The balloon is filled with a solution of 20% sucrose and 80% water and is immersed in a beaker containing a solution of 40% sucrose and 60% water.

    asked by Tracee on November 19, 2010
  8. Chemistry

    At room temperature, 80.0 ml of 0.125 M AgNO3(aq) and 20.0 ml of 0.500 M Fe(NO3)2(aq) are mixed together, generating the following equilibrium system Ag+ (aq) + Fe2+(aq) Ag(s) + Fe3+(aq). At equilibrium, the concentration of Fe3+ is 0.00505 M. (a) (4 pts)

    asked by Anonymous on September 27, 2013
  9. math

    Katie is buying souvenir gifts for her big family back home. She wants to buy everyone either a key chain or a magnet. The magnets are on sale for 50 cents each and the key chains cost $1 each. She must purchase at least 24 gifts but has to spend less than

    asked by bri on February 8, 2019
  10. Chem

    Calculate the concentration of NH4+ from ammonium chloride required to prevent the precipitation of Ca(OH)2 in a liter of solution that contains .10 mol of ammonia ans .10 mol pf calcium ion. I got the two equations but I do not know where to begin. The

    asked by Anonymous on May 7, 2007
  11. Chemistry

    1x10-2 mol of MgSO4 (Ksp = 9) is added to 1 L of water. Will 1x10-5 mol of CaSO4 (Ksp = 10-6) completely dissolve in the solution? I think the answer is yes...because the Q will be less than Ksp of 10^-6?? Which of the following salts would you expect to

    asked by Trixie on March 16, 2010
  12. business

    how do I write a business solution of at least 350 words addressing a business communication problem? First you need to identify the business communication problem you want to address. Then decide on three or four ways to solve this problem. I suggest you

    asked by snoppy on July 22, 2007
  13. math

    9x^2-6x-7=0 is it a : One rational solution Two rational solutions Two irrational solutions One complex solution Two complex solutions

    asked by ninah on April 29, 2013
  14. algebra

    While working at The Nut House you are asked to make a mixture of raisins and nuts worth $2.75/lb. You have 12 pounds of raisins worth $1.25/lb. How many pounds of nuts worth $4.00/lb should you add to the raisins to get the right-priced mix? I have no

    asked by Loretta on April 15, 2011
  15. Math

    the sum of the first n terms of an arithmetic series is -51. the series has a constant difference of -1.5 and a first term of four. Find the number of terms in the sum I find using an EXCEL spreadsheet is very helpful for these types of problems. Start

    asked by BEANAGEE on December 21, 2006
  16. algebra

    A disc jockey must play 14 commercial spots during one hour of radio show.Each commercial is either 30 seconds or 60 seconds long. If the total commercial time during 1 hour is 11 min, how many 30 second commercials were played that hour? How many

    asked by babs on July 22, 2011
  17. Chem

    Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.30 g of sodium carbonate is mixed with one containing 3.00 g of silver nitrate. How many grams of each of the

    asked by Ezra on September 16, 2012
  18. Environmental Science

    I have been studying for several hours and am having problems with finding the answer to this question. Can anyone help please? Conservationists argue that watershed protection and other ecological functions of forget are more economically valuable than

    asked by Sandy on April 18, 2011
  19. Social Studies

    What economic philosophy developed in response to the problems of industrial workers? A. socialism B. capitalism C. laissez faire D. mercantilism ****** Use the drop-down menu to complete the sentence. Under the U.S. Constitution, the president may veto

    asked by RaNdOm PeRsOn 513 on November 19, 2018
  20. Social Studies

    The United States experienced a recession which lasted for more than a year in the late 2000s. How did this recession most likely affect its trade partners Canada and Mexico? a. Their economies were not affected by this problem. b. They had some economic

    asked by Anonymous on September 12, 2013
  21. accounting

    comprehensive problem perpetual In this project, follow the steps of the accounting cycle to process given transactions in a business environment. Then, synthesize special journals, a trial balance, financial statements, and a post closing trial balance.

    asked by calgal on January 22, 2010
  22. algebra

    hi! im having some problems with my word problem. Ann regularly swam .4 km in 20 min at the school pool. Swimming in a river against the current, she swan .25 km in the same time it took Ann to swim .75 km with the current. Dind the speed of the current

    asked by jason on February 13, 2008
  23. science

    apa style more references identify at least seven different problems with the following reference and the re-write the reference in its proper form Doherty, Sam; Ames, Leslie; & Clark, David. (2003). The Effects of Music on Perceptual Tasks, in H. Burns

    asked by eid2013 on November 4, 2013
  24. frankenstein

    In Mary shelley's frankenstein, did frankenstein believe in democracy? This site will give you information on Themes and Motifs in that book. http://www.sparknotes.com/lit/frankenstein/ However,NOW the term Frankenstein has come to have an anti-democratic

    asked by casey on March 5, 2007
  25. writing

    I was wondering if some1 could help me in the right direction with this assignment. Background Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office

    asked by Brenda on May 20, 2011
  26. geography

    What are the various problems and difficulties that can occur with a society in the middle of the ocean, or a society under the ocean. (Ex. Waste management, or agriculture) I need about 5. Also, what is the necessary technology needed to make the

    asked by Sal on April 5, 2010
  27. Rational Expressions

    How do you know when to move the number to the left or the right. For example (x-5)/(x+8)=5/7 or (y-2)/(y+2)=3/7 I know the first problems answer is 2/75 and the second is 5 and in both cases I seem to mess up on the last part of moving the numbers like

    asked by April on August 26, 2010
  28. algebra

    the function W(d)=0.112d approximates the amount in centimeters of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depths of 18 cm, 49 cm, and 98 cm. I am having problems figuring this out and I

    asked by helen on October 8, 2011
  29. algebra

    the function W(d)=0.112d approximates the amount in centimeters of water that results from d cm of snow melting. Find the amount of water that results from snow melting from depths of 18 cm, 49 cm, and 98 cm. I am having problems figuring this out and I

    asked by helen on October 8, 2011
  30. trig

    I do not understand these problems. :S I'd really appreciate the help. Use trigonometric identities to transform the left side of the equation into the right side. cot O sin O = cos O sin^2 O - cos^2O = 2sin^2 O -1 (tan O + cot O)/tan O = csc^2 O

    asked by Matt on April 27, 2009
  31. English

    Can you please check these sentences for me? Thank you very much. 1)Nature is personified. 2)The humans (or people, human beings) don't have time to observe her beauty as cows an sheep do. 3) We don't have time to turn at Beauty's glance and see how her

    asked by Franco on December 2, 2010
  32. Chemistry

    A half-cell that consists of a copper wire in 1.00 M CuNO3 solution is connected by a salt bridge to a half cell containing a 1.00 M X(II) acetate solution and an electrode of metal X. The voltage of the cell is 2.00 V, with metal X as the positive

    asked by JUNDY on April 12, 2015
  33. Cultural Anthropology 101

    Ethnocentrism refers to: (Points : 1) the need to focus on another society’s problems. the judging of another culture in terms of your own. ***the view that your own society is inferior to others. the view that people’s ideal behavior is better than

    asked by mandy on December 2, 2012
  34. Math

    Which of the following is a solution of the equation 5x + 4 = 14? A. 2 B. -2 C.3 D.1

    asked by AbbyLovesMath on January 9, 2011
  35. math

    Solution for 2/3x+x+90=180

    asked by mai on February 27, 2012
  36. Algebra

    Solve 4(2x-3) < 3x+6 Would the solution be x > 18/5?

    asked by Anonymous on October 13, 2009
  37. algebra

    x = 3 a solution for 3x – 1 = 6? Write yes or no.

    asked by chuck on August 20, 2011
  38. Chemistry

    What is the pOH of a solution which has a [H+] = 1.0 × 10¯³M?

    asked by Tony on February 9, 2011
  39. Algebra

    How do I solve for y when z= 6-y, for y.The solution is y=?

    asked by A.W. on February 1, 2009
  40. math

    How do I solve x^2+2x+4>0 and what does the solution tell you?

    asked by Anonymous on November 16, 2014
  41. Math

    What is the solution of -6r-5=7-12r?

    asked by Alec on March 8, 2012
  42. Mat 116

    What is the solution of the system 7r - 5s = 36 and 5r + 7s = 68

    asked by Jennifer on May 30, 2012
  43. absolute value

    |x^2-10|=4 x^2-10=4 or x^2-10=-4 X^2-14=0 x^2-6=0 (x-7)(x+2)=0 (x-2)(x+3)=0 x=7 x=-2 x=2 x=-3 solution set {-3,-2,2,7} (?????)

    asked by Kally on April 3, 2008
  44. algebra

    Please help me figure this out: consider f(x) = -6x -1 and g (x) = 4x^2 solution for (f+g)(x)

    asked by Alaska Diamond on September 6, 2013
  45. trig.

    8x^3+4x^2-4x solution sets

    asked by jackie on February 18, 2013
  46. chemistry

    what is a standard solution?

    asked by Nancy on March 5, 2011
  47. Algebra HELP PLEASE

    Which is a solution to the equation y = 2x 5?

    asked by Sara on September 26, 2014
  48. ALGEBRA

    DETERMINE WHETHER (6,-2) IS A SOLUTION OF Y=-2/3X

    asked by Anonymous on March 13, 2016
  49. chem

    What is the pH of a 0.22 M solution of HClO4?

    asked by val on December 6, 2012
  50. trigonometry

    what are the solution sets to x^5-2x^3+x=0 and how do you get them?

    asked by jessica on February 18, 2013
  51. science

    what is alkaline solution?

    asked by amna on January 26, 2011
  52. math

    what is the solution to the following system? -2x-y=1 -4x-2y=-1

    asked by anon on October 19, 2016
  53. Math

    x < 1 is a solution to which of the following inequalities? A. x + 2 < 3 B. x − 2 < − 3 C. x − 2 ¡Ü −1 D. both A and C

    asked by Jon on April 24, 2012
  54. chemistry

    WHAT PROPERTY OF SOLUTION IS DESCRIBED BY ITS pH?

    asked by denis on November 8, 2011
  55. Calc

    Find the solution to e^x = 2+2x

    asked by Anonymous on February 11, 2015
  56. Math Help

    Help Solve x^2+2x-4=0 What is the solution

    asked by katie A on October 18, 2011
  57. ALGEBRA PLS

    is (0, 3) a solution to the equation y = x + 3? -Yes -No I think Yes.

    asked by anonydingdong on September 15, 2015
  58. Algebra

    log(4)(3x + 4)^5 = 15 x = 20? And is this the only solution?

    asked by Anonymous on December 16, 2014
  59. algebra- please help

    graph by solution y= 7/4x-4 y= -1/4x+4

    asked by Anonymous on August 23, 2013
  60. Math

    Which equation has (2, -1) as a solution? Y = 2x - 1 Y = x + 3 Y = x - 3 Y = -2x + 1

    asked by Fish on October 29, 2018
  61. Algebra 2 Answer Check

    Solve. 2x + 4(x + 1) = 6(x + 2/3) A: No solution.

    asked by Victoria on September 21, 2014
  62. Proportions

    What is the solution to the proportion 3y-8/12=y/5? can someone help me do this?

    asked by Corie on January 17, 2013
  63. algebra

    what is the solution of the system 9x+8y=21 x=13-6y

    asked by Robert on January 23, 2010
  64. Math

    B? Which equation has solution x = -3? A) 2x - 7 = -1 B) 3x + 8 = 1 C) 1/2x + 8 = 10 D) 1/2 (2x - 6) = -6

    asked by Diane on March 27, 2018
  65. Algebra

    What is the solution to the proportion? 4/12=10/x x = 3 x = 3.3 x = 4.8 x = 30

    asked by Sara on September 15, 2014
  66. math help

    Which equation has (2,-1) for a solution? A. y= 2x - 1 B. y= x +3 C. y= x - 3 D. y= -2*x+1 please help

    asked by meow meow kit kat on February 26, 2019
  67. Algebra

    Do the equations x = 4y + 1 and x = 4y – 1 have the same solution?

    asked by Cesar on July 5, 2012
  68. Math

    How do i do a solution for the problem.

    asked by Becky on March 23, 2016
  69. Algebra

    How do I solve -22

    asked by A.W. on March 22, 2009
  70. Algebra

    Solve. -0.1x < -4. The solution is { x| }.

    asked by A.W. on March 22, 2009
  71. algebra

    is there a solution to this promblem? 9x+3y=-60 -9+y=76 help please??

    asked by help on January 17, 2010
  72. math

    Which of the following is a solution to the equation y = 3x – 1?

    asked by yeet on October 17, 2018
  73. math

    What is the solution of the equation 4t=64?

    asked by Anonymous on September 18, 2014
  74. Algebra2

    Which expression gives the solution -5+2x^2=-6x?

    asked by Steve on January 5, 2017
  75. algebra

    is there a solution to this problem.. x+3y=5(1) x+4-3x(2)

    asked by at on January 24, 2010
  76. math

    Is (1, 5) a solution to the equation y = x – 2?

    asked by yeet on October 9, 2018
  77. algebra

    4 - 2y > 7 - 2y Can this be solved? I believe there is no solution

    asked by Brandy on January 11, 2011
  78. chem

    What is the [OH-] for a solution at 25°C that has [H3O+] = 8.23 × 10-2 M?

    asked by richard on March 5, 2011
  79. math

    What is the solution of the given equation? 12;8t=96?

    asked by Jessica on November 15, 2010
  80. Math

    What Value of x is a solution to the equation? x-2 = 16

    asked by Jack on October 25, 2017
  81. Mat 116

    Solve for m p=4m+4v the solution is m=

    asked by Carey on August 27, 2011
  82. algebra ll

    Solve for f. (f - 12)2 = 25 A. f = 5 or f = −5 B. f = 12 or f = −12 C. f = 17 or f = 7 D. no solution

    asked by leo on June 25, 2012
  83. Algebra 1

    What is a solution of x^2 +6x=-5? my answer is -1

    asked by Steve on February 11, 2015
  84. Algebra 1

    -2x-2y=4 2y=-2x-4 Identify the solution

    asked by Sam on May 15, 2014
  85. algebra

    what is the solution of this problem 0.6x+8

    asked by peaches on October 21, 2010
  86. algebra

    5+z(N+1 ) = 2N find the solution

    asked by kamryn on October 19, 2015
  87. Chemistry Help Please

    What is the OH- concentration of a solution that has a pH of 9.66?

    asked by Mary on March 26, 2012
  88. algebra

    -5y>13 Is the solution to this inequity y < - 13/5?

    asked by C on April 22, 2008
  89. Chemistry

    What is the OH- concentration of a solution whose pH is 12.40?

    asked by Trinity on March 29, 2016
  90. algebra

    how do you know if a value is a solution for an equality?

    asked by Sumayyah on December 28, 2008
  91. math

    What is the solution of the equation |2-x | =3

    asked by natalie on June 3, 2013
  92. college algebra

    Is x= -2 a solution for this inequality? 4+2 x-7>-4(x-2)-9

    asked by denise on March 4, 2010
  93. algebra

    (-6^2 + 2v + 4) - (6v^2 + 4)= Is the solution: 12v^2 + 2v?

    asked by Nancy on March 5, 2011
  94. Math Help

    Help Solve x^2+2x-4=0 What is the solution

    asked by katie A on October 18, 2011
  95. MATH

    Please help, solution set for 7(4z-3)>59 please.?

    asked by Joyce on October 6, 2015
  96. Chemistry

    a 2.0M solution of Hbr will have what pH?

    asked by Lily on May 22, 2012
  97. Chemistry

    HBrO3 has a Ka of 3.6 x 10^-6. What is the pH of a 2.0M solution?

    asked by Lily on May 22, 2012
  98. Math

    Is (1, 5) a solution to the equation y=x-2? a. yes b. no***** Is (-2, -6) a solution to the equation y=3x a. yes***** b. no

    asked by Sid.V on September 12, 2018
  99. Algebra

    What is the solution set for 0.5x+7 less than 1.3x-8

    asked by Gary on January 2, 2011
  100. Algebra 2

    When you solve t(t+1)(t-2)=0, is the solution {0, -1, -2}?

    asked by Danny123 on September 28, 2010