1. Discrete Math

    Using the ordinary alphabet and allowing repeated letters, find the number of words of length 8 that have exactly one B. How do I solve this? Please leave an explanation to solve this.

    asked by Adedeji Ogunba on November 18, 2018
  2. Math, Please Help!!!

    Solve the Trigonometric equation for all solutions between [0,360)degrees. 2Sinx + 1 = 2.6635. Solve for x. does x equal 56.28degrees and 123.72degrees?

    asked by Misty on November 7, 2011
  3. Math assistance needed

    Solve: (t+24)/(t^2-t-56)+7/(t-8)=3/(t+7) I do know that (t^2-t-56) can be factored out to (t-8)(t+7) so I have the equation as (t+24/(t-8)(t+7) +7(t+7)/(t-8)(t+7)-3(x-8)/(t-8)(t+7) is this correct ot what am I doing wrong? I don't understand the rest so

    asked by Shawn on October 12, 2008
  4. Geometry

    I have no idea how to solve this problem. The question says: Determine whether the points A(4,5), B(-3,3), C(-6,-13) and D(6,-2) are the vertices of a kite. Explain your answer. Can you please help me with the steps to solve it and understanding it.

    asked by Avalon on February 18, 2008
  5. Calculus

    Right now my class is working on exponential growth and decay. I know that i have to find the integral of both sides and solve for Y but I don't know how to do so exactly. Here's the problem: if dy/dx=3Y(10-Y) integrate to solve for Y

    asked by Crystal on February 11, 2008
  6. Advance Math.

    Hello i'm haveing trouble with this problem, when I solve it I'm geting the A=24.375, but it does not plug in correctly. 1.5 + 4/5a =21 Solve what A equals I know the steps I just think i'm solveing it wrong.

    asked by Jen on November 29, 2009
  7. Math

    How should I approach this, what formula do I use to solve and how do I solve it? How long, to the nearest year, will it take me to become a millionaire if I invest $3000 at 9% interest compounded continuously? Thanks

    asked by Amie on February 29, 2012
  8. Business Fin303

    How do you solve and or what formula do u use to solve this question: A stock that pays a constant dividend of $2.5 forever currently sells for $24. What is the required rate of return?

    asked by Kay on May 17, 2013
  9. Math - Algebra

    Solve the inequality. n-1/3n < n-4/3n-4 (it's actually less than or equal to) My first instinct is to multiply 3n, but that'll just give me squares and makes it harder to solve. I also thought about getting a common denominator, but I'm not sure. Thank

    asked by Momo on December 29, 2008
  10. government

    27. Understanding Concepts Answer each of the following questions in complete sentences. Be sure to support each answer with specific examples. 6 points each Federalism Explain how the system of federalism balances the needs of a strong national government

    asked by love on January 7, 2011
  11. Chemistry

    A student generated oxygen gas by decomposing hydrogen peroxide (H2O2) according to the following equation: 2H2O2(aq) -> 2H2O(l) + O2(g) If the student started with 1.75 moles of hydrogen peroxide, how many moles of oxygen gas would be produced? Show your

    asked by Emily on April 1, 2015
  12. permutations in math

    suppose 15 countries compete in an olympic event. gold, and silver,and bronze medals are awarded. how many different arrangements of winners are there if no country wins more than one medal in this event? show the work. thanks. 15 countries can get the

    asked by dillon on April 9, 2007
  13. college algebra

    You need a 45% alcohol solution. On hand, you have a 350 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution? You will need ________ mL of the 70% solution

    asked by Jennifer on July 6, 2019
  14. ENGLISH Revised

    BACKGROUND: Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz, the human resources director, promoted me to office manager. I manage two employees: Jack and Ruth. My office provides secretarial support for the four

    asked by Kayla on March 30, 2012
  15. Chemistry

    100 mL of buffer solution that is 0.15M HA (Ka= 6.8x10-5) and 0.20M NaA is mixed with 15.2mL of 0.35M NaOH. What is the pH of the resulting solution? 100 mL of buffer solution that is 0.15M HA (Ka= 6.8x10-5) and 0.20M NaA is mixed with 28.3mL of 0.25M HCl.

    asked by Anonymous on September 29, 2018
  16. College Physics

    (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's working out? 2 h (c) Calculate the amount of mechanical work necessary to lift a 126 kg barbell 2.10 m. 3 J (d) He drops

    asked by Maria on November 24, 2014
  17. algebra

    I need help breaking down the steps to solve HELP ME PLEASE solve with an exact answer. x^2 + 2x - 8

    asked by becca on January 17, 2012
  18. Algebra

    Solve the equation by completeing the square x^2+6x=-7 Idk how to solve

    asked by guywithaquestion on April 25, 2016
  19. math

    solve: −4≤2x+6

    asked by Kenny on August 6, 2016
  20. math-calculus

    solve 3|x-8|=2x+7 i not get how to solve this the 3 infront of absolute value bracket confusing me.

    asked by Shreya on January 17, 2012
  21. Math

    Solve: (don't forget about imaginary numbers) 5x^2-7x+12=0 how do I solve this? please help and thank you

    asked by Anonymous on March 12, 2012
  22. Algebra 2 ..

    1. Solve 3=log8+3logx 2. Solve 2logx-log4=0

    asked by Anonymous on February 24, 2013
  23. Geometry

    How do I solve this problem? Point P is between points L and M. LM = 10x, LP = 2x + 4, and PM = 3x + 16. Solve for x.

    asked by Terri on November 14, 2010
  24. math

    Solve 3sin2x - 1 = 0 Interval: [0, 2 pi] Solve 6cos^2x + 5cosx - 6 = 0

    asked by - on November 15, 2009
  25. Math

    Solve each literal equation for the indicated variable. 4x-5y=10 for y (the answer is y=4/5x-2) How do you solve this?

    asked by Brad on February 5, 2010
  26. Math

    Solve for x in terms of p and q if p^2x=x-(2p-1)/p. How would I do this if this if there is no q? I think that someone made a typo on the problem and if that is so how would I solve it for just p?

    asked by V on September 7, 2010
  27. Math

    How do you solve this problem S=2brh+2br(squared) solve for h

    asked by Nicole on August 27, 2007
  28. math

    5/2 x + 1/4 x = 11/4 +x how to solve this? I get 11/4=11/4+x what steps do I have to take after that.. I would appreciate it if you showed me how to solve the whole equation! (: thnx

    asked by please help (: on October 29, 2009
  29. math

    how do u solve a unit rate problem using proportions to solve

    asked by Ch on January 26, 2012
  30. Math

    (a^6 x a^6)^k = (a^3)^(k+5) Solve for k. a. 3/2 b. 5/3 c. 2 d. 3 e. 5 I think when simplified its (a^12)^k = (a^3)^(k+5) but i don't know how to get k from here. How do you solve for these kind of exponents?

    asked by Anonymous150 on August 13, 2012
  31. Algebra

    I've been try to solve this equation and I can't seem to get far. Do you add 3 to both sides? If not please explain to me how you solve this. Thanks :) 1/2=2/5c-3

    asked by Erika on September 1, 2015
  32. Algebra

    Can someone please help me with this? I'm not looking for the answer, just a detailed explanation on how to solve this. Thank you in advance. Solve: 16(t - 1) + 10 > 8(t +2) + 4(t - 1) + 4t

    asked by Lace on April 3, 2011
  33. Physical Science

    To create a supernaturated solution, a student heats a beaker of water on a hot plate and adds sugar until no more sugar will dissolve. The student then strains the solution through a funnel using filter paper and allows the solution to cool. Name two

    asked by SHAZAM on January 12, 2011
  34. algebra

    write (27a^-3)^(-2/3) in simplest form. solve log(6x+11)=2 please and thanks I am not going to give you the answers. I will be happy to critique your work. In the first, remember that (a^b)^c= a^bc I am not looking for the answers. And I told you: I'm not

    asked by Lillian on May 29, 2007
  35. Algebra

    Show all steps The maximum number of volts, E, that can be placed across a resistor is given by the formula E=sq root(PR), where P is the number of watts of piwer that the resistor can absorb and R is the resistance of the resistor in ohms. Solve this

    asked by Betty on October 25, 2011
  36. Math

    A satellite will be released into an orbit of more than 400 miles above the earth. the rocket is carrying it is currently 255 miles above earth write and solve an inequality to show how much higher the rocket must climb before it releases the satellite

    asked by Coleson on September 23, 2014
  37. Calculus Help Please Urgent!!!

    At time t=0, an astronaut stands on a platform 3 meters above the moon's surface and throws a rock directly upward with an initial velocity of 32 m/sec. if the acceleration due to gravity is 1.6 m/sec^2. a) find the equations of motion for the throwing of

    asked by Anonymous on April 24, 2014
  38. Finance

    Benson Incorporated has bonds with the following features: Par value of 1,000, maturity of 12 years, and a coupon rate of 8%.The yield to maturity is 10%. Pleases determine if the bond sells for for a premium, par, or discount and explain your answer.

    asked by Mybenz on August 20, 2011
  39. chemistry

    Iron can be produced by the reduction of iron(III) Oxide by carbon monoxide: Fe2O3 + 3CO -> 2FE +3CO2 a) what maximum mass of CO2 could be produced from the complete reduction of 14.7g of Fe2O3? b) if 8.73g of CO2 gas was actually collected, what

    asked by Emily on February 15, 2016
  40. Math

    A computer chip on a circuit board has a rectangular shape, with a width of 6mm and a length of 9mm. Plans for the circuit board must be drawn using a scale factor of 15. Draw a scale diagram of the computer chip as it would appear on the plans. Please

    asked by Anonymous on July 31, 2013
  41. Chemistry

    Please help! I'm trying to find the solubility of Ca(OH)2 in .001305 mol/L aqueous NaOH? Saturated solution of Ca(OH)2 in 0.01305 mol/L NaOH. [HCl] = 0.1213 M Volume of HCl = 9.81 mL Volume of Ca(OH)2/NaOH aliquot = 25ml Find: 1. the TOTAL [OH-] in the

    asked by Alex on March 20, 2017
  42. Precalculus

    Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π). 8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve algebraically for exact solutions in the interval [0,2π). Use your grapher only to support your algebraic work. 24. cos2x+sinx=0

    asked by Anonymous on January 3, 2013
  43. chemistry

    You have a 250ml solution of 0.13M calcium iodate. How many grams of potassium iodate need to be added to the solution to begin to precipitate calcium iodate? The solubility product constant for calcium iodate is6.47 *10^-6. B) you have a 250ml solution of

    asked by anonymous on November 18, 2015
  44. math

    Find the given percent of each number.Show your work. a.25% of 120 b.80% of 120 c.120% of 80 d.70% of 150 e.150% of 200 f.200% of 150

    asked by .......... on October 7, 2009
  45. math

    Tanya guessed there were 65 beans in a jar. Her guess was off by 20. Bryan guessed there were 35 beans in the jar. He was off by 10. How many beans are in the jar? And how would I show my work?

    asked by ke on February 23, 2015
  46. algebra

    For three consecutive odd​ integers, the sum of 3 times the first integer and 2 times the second integer is 77 less than 4 times the third integer. What are the three​ integers? Please show work thank of you

    asked by sandy on September 13, 2016
  47. maths limit of sequences

    How to show working for limit of n to infinity [(n^10)/n!]? I know it should be 0 by order of hierarchy where n!>n^10 but I am not sure how to show working.

    asked by Steve on March 12, 2018
  48. English

    What are some adverbs that show condition? All I can find are adverb clauses that show condition.

    asked by Li on April 19, 2012
  49. Talent Shows

    In class I have to do a talent show. If I learn karate from my friend do YOU think that is okay for a talent show?

    asked by Anonymous on May 23, 2008
  50. Physics

    A luggage handler pulls a 20kg suitcase up a ramp inclined at 25 degrees above the horizontal by a force F of magnigutde 145N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is .30. If the suitcase

    asked by Jamie on January 18, 2007
  51. physics

    Two events in S are separated by a distance D=x2 - x1 and a time T = t2 - t1 . a) Use the Lorenrz transformation to show that in frame S' , which is moving with speed v relative to S, the time separation is t2 - t1 = ã(T - vD/c2 ). b) Show that the events

    asked by kim on December 7, 2009
  52. physics

    Two events in S are separated by a distance D=x2 - x1 and a time T = t2 - t1 . a) Use the Lorenrz transformation to show that in frame S' , which is moving with speed v relative to S, the time separation is t2 - t1 = ã(T - vD/c2 ). b) Show that the events

    asked by kh on December 9, 2009
  53. algebra

    Your monthly commission as an appliance sales person is represented by the equation, S = 50x+450, where 50 is the rate paid for each appliance sold, x is the number of appliances sold, 450 is the base pay per month, and S is the salary. Complete the

    asked by Angie on February 12, 2014
  54. Physic

    A 135 g baseball traveling at a speed of 36 m/s hits a bat and moves back along its incoming trajectory with a speed of 47 m/s. a) What is the impulse delivered to the ball by the bat? (Answer: 11.2kg * m/s) b) If the duration of the bat-ball collision is

    asked by Anonymous on April 22, 2014
  55. physics

    A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction

    asked by Bob on December 1, 2013
  56. Chemistry

    A 10.0 L container contains 1.0 L of solution of a gas. Assume [gas]=1.5x10^-4 M in solution when 2 mol of gas remain in gas form. If 1 mol of gas is removed from the gas phase, what will be the new concentration of the gas in solution? What is the value

    asked by Sarah on February 15, 2016
  57. physics

    Two blocks are placed at the ends of a horizontal massless board, as in the drawing. The board is kept from rotating and rests on a support that serves as an axis of rotation. The block on the right has a mass of 5.4 kg. Determine the magnitude of the

    asked by genius girl on January 6, 2015
  58. Accounting

    The company’s fiscal year ends on December 31. Using the following information, compute depreciation for this machine for each of the 4 years using each of the following methods: Straight-line method Sum-of-years method Double-declining method

    asked by Frank on November 10, 2012
  59. Physics

    A rock is dropped from a height of 100m. a) how long does it take to fall the first 50m? b)How long does it take to fall the last 50m? Which equation would I use to solve this problems with? For a) use s=(1/)g*t^2 where s=50m and g=9.8m/s^2 and solve for

    asked by Lauren on September 19, 2006
  60. Maths!

    There has just been a planetary alignment of five planets in the system Blogg, all the astrologers have gone loopy, and they want to know when the next occurance of these five planets will happen again. Krypton the nearest planet to the sun takes 6 days to

    asked by -=-=-=-=-=-=-=-=-=-=- on June 25, 2005
  61. Math

    The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) State the equation of the

    asked by Kate on June 24, 2009
  62. Astronomy

    Light travels at a constant speed of 3.0 x 105km/s. The distance between the Sun and the Earth is about 1.5 x 108km. Use the distance = speed x time formula (d = v t) to calculate the time it takes light to travel from the Sun to the Earth. Show your work.

    asked by Lilly on March 15, 2014
  63. math

    A polling company took 5 polls in the week before and election. It showed that a mayoral candidate would get 66%, 56%, 55%, 60%, and 63% of the votes. That candidate received 64% of the total votes during the actual election. Find the percent error in the

    asked by syram on March 20, 2013
  64. Astronomy

    Light travels at a constant speed of 3.0 x 105km/s. The distance between the Sun and the Earth is about 1.5 x 108km. Use the distance = speed x time formula (d = v t) to calculate the time it takes light to travel from the Sun to the Earth. Show your work.

    asked by Lilly on March 15, 2014
  65. Writing Paragraphs and sentences

    Paragraph 2 good copy... Revised and corrected. Anna, I am so happy you’ve moved back to Burlington from Bay view, Ohio! Especially since there are many more job oppurtunities here considering it’s a bigger city. In fact just yesterday I was talking

    asked by Shawna on January 10, 2012
  66. Physics

    A grain bucket conveyor (grain leg) raises soybeans from the ground level up to the peak of its height, h= 150 ft. A bushel of soybean weight, W=60 lb/bu. The bucket elevator can deliver, Q= 120 bu/min, to the top spout. The motor shaft power to drive the

    asked by Max on March 23, 2016
  67. AP Chem

    Need help with this practice problem. I got the values for the gas to liquid and liquid to solid. Don't know how to do the rest? Heat of Vap and fusion too? No idea! What is the enthalpy change during the process in which 100.0 g of water at 50.0 C is

    asked by Chemkid on February 23, 2013
  68. AP Chem

    Need help with this practice problem. I got the values for the gas to liquid and liquid to solid. Don't know how to do the rest? Heat of Vap and fusion too? No idea! What is the enthalpy change during the process in which 100.0 g of water at 50.0 C is

    asked by Chemkid on February 23, 2013
  69. Chemistry-ksp and kb

    We were given a 0.1 M KOH solution.25cm3 of that solution is taken and 5g of MX precipitate is added to that.X- is an anion of a strong acid. Kb for MOH=2*(10)^-5 Ksp for MX= 3*(10)^-6 M 1)find the [M+] in the solution 2)Find the [X-] concentration and pH

    asked by Shenaya on May 24, 2017
  70. Safety of the young child

    To assure children's safety in a child care setting,teachers must provide continuous A.elimination of all risks and hazards in the facility. B.training of teachers and staff members.C.strict rules and regulations for children. D.awareness of children's

    asked by Cynthia on April 2, 2009
  71. Physics

    A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in

    asked by Julie on March 22, 2016
  72. chemistry

    1. 25.0mL of 0.20M Propanic acid (HC3H5O2, Ka = 1.3×10-5) is titrated using 0.10M NaOH. Calculate the following pH. Show your work. a. When 0.0 mL NaOH is added. b. When 25.0 mL NaOH is added c. When 50.0 mL NaOH is added d. When 75.0mL NaOH is added.

    asked by fun on March 7, 2017
  73. Physics

    A 200g box is moving on a table with velocity of 23m/s. There is a coefficient of friction of 0.032 between the table an the box. A force pushes the box for 1.2m which increases the velocity to 28m/s. Calculate the force that was applied. How do we solve

    asked by Sash on April 15, 2013
  74. eng college

    Can someone please help revise. It is a proposal for a research paper! Thank You! Work and family are both central to our way of life. Finding a balance between the two is an issue of importance to men, women, and employers. Therefore, I will argue that

    asked by christy on February 22, 2010
  75. chemistry

    if you dissolve 20mg of alcl3 into 2.0 of a 2.5 molal nacl solution (density 1.08kg/l), what would be the mass concentration (ppm(weight)) of al3+ in the resulting solution?

    asked by Ashley on January 26, 2014
  76. chemistry

    if 36.23mL of a standard 0.1959M NaOh solution is required to neutralize 25.00mL of H2SO4. what is the Molarity of the acid solution, balance the equation. Please help with calculation. Thank you for your help.

    asked by kate- Please help on September 1, 2012
  77. Chem

    If a solution containing 88.445 g of mercury(II) perchlorate is allowed to react completely with a solution containing 13.180 g of sodium sulfide, how many grams of solid precipitate will be formed?

    asked by asd on February 1, 2016
  78. Chemistry

    A 25.0mL sample of a 0.100M solution of acetic acid is titrated with a 0.125M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.

    asked by Amanda on November 8, 2010
  79. chemistry

    sorry i forgot some of the units in the initial posting 8.00g of NaOH are dissolved in water to make 4.00L of solution. What is the concentration of hydronium ions, , in this solution?

    asked by katy on November 2, 2009
  80. chemistry

    What volume (in liters) of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride (Glu, FW=183.59; pka1=2.23, pka2=4.42, pka3=9.95) to get to pH 10.20?

    asked by Decisice 2 on May 23, 2013
  81. chemistry

    8.00g of NaOH are dissolved in water to make 4.00L of solution. What is the concentration of hydronium ions, [H3O+], in this solution? Express your answer with the appropriate units.

    asked by Anonymous on November 7, 2014
  82. chemistry

    50 mL of a 2.50 M solution of ammonium phosphate is added to 100mL of a 1.50 M solution of calcium nitrate. At the end of the reaction 11.2 grams of precipitate produced. What is the percent yield

    asked by Bleh on April 18, 2012
  83. chemistry

    A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be needed to produce 400 of a solution that has a concentration of ions of 1.20 ?

    asked by Marry on September 29, 2010
  84. chemistry

    a 12ml sample of 0.4m silver nitrate solution is mixed with 8 ml of 0.8m sodium chloride solution. determine the identity of precipitate and the number of grams produced.

    asked by Anonymous on May 4, 2015
  85. chem

    Assume that 35.0 mL of a 0.13 M solution of a weak base B that accepts one proton is titrated with a 0.13 M solution of the monoprotic strong acid HX. (a) How many moles of HX have been added at the equivalence point?

    asked by hannah on March 24, 2013
  86. Chemistry

    A solution of boric acid (H3BO3) in water has a pH of 3.45. If the solution also contained NaHBO3, what do you expect to happen to the pH? Increase Decrease Stay the same Not enough information provided

    asked by apersonyoudontknow on March 20, 2017
  87. chemistry

    what volume of a 0.247 M perchloric acid solution is required to neutralize 23.8 mL of a 0.156 M calcium hydroxide solution? _titration problem of acids/bases

    asked by Elise on April 2, 2015
  88. chemistry

    An aqueous solution contains 0.445 M ethylamine (C2H5NH2). How many mL of 0.226 M hydrochloric acid would have to be added to 150 mL of this solution in order to prepare a buffer with a pH of 10.200

    asked by chem on March 16, 2015
  89. CHEM

    What is the molarity of a calcium sulfate solution prepared by adding 27.89g of CaSo4 to sufficient water to make a final solution volume of 1.00L?

    asked by Lisa on February 7, 2013
  90. chemistry

    the student's lab manual says to mix some of his CaCl2 solution with an aqueous solution of sodium carbonate (Na2CO3). What evidence of a chemical reaction would he expect to see?

    asked by jalisa on December 17, 2012
  91. CHEM

    What is the molarity of potassium iodide solution prepared by adding 5.810g of KI to sufficient water to make a final solution volume of 250.0mL?

    asked by Lisa on February 7, 2013
  92. Chem

    A 0.2181 g sample of KHP required 17.29 mL of sodium hydroxide solution to reach the phenolphthalein end point. Calculate the molarity(M) of the NaOH solution.

    asked by Donnie on October 9, 2012
  93. chem 1046

    Calculate the solubility (in grams per 1.00 102 mL of solution) of magnesium hydroxide in a solution buffered at pH = 9. Enter your answer to 2 significant figures.) Ksp = 2.06e-13

    asked by Anonymous on July 9, 2012
  94. Chemistry

    How many grams of aspirin (C9H8O4) are required to react with exactly 29.40 mL of a 0.02400% w/w solution of sodium hydroxide (NaOH)? What would the consequences be in 0.01200% w/w solution was used instead? Thanks for any help - no idea how to proceed.

    asked by Che on January 18, 2011
  95. chemistry

    What volume (in liters) of 0.96 M KOH solution should be added to a 0.090 L solution containing 9.9 g of glutamic acid hydrochloride (Glu, FW=183.59; pKa1=2.23, pKa2 =4.42, pKa3=9.95) to get to pH 10.20?

    asked by shanonn on May 3, 2013
  96. chemistry12_2016-2

    14.0 grams of potassium hydroxide was dissolved to form 100 centimetre cubeof an aqueous solution. What was the concentration of this solution in mol/decimetre cube.

    asked by Anonymous666_4 on March 27, 2016
  97. Chemistry

    How many grams of solid KOH must be added to 100ml of a buffer solution which is 0.1M each with respect to the weak acid HA and its potassium salt KA in order to make the pH of the solution 6.0?

    asked by Sandu on October 4, 2016
  98. analytical chemistry

    What volume (in liters) of 0.96 M KOH solution should be added to a 0.130 L solution containing 10.2 g of glutamic acid hydrochloride (Glu, FW=183.59; pKa1=2.23, pKa2 =4.42, pKa3=9.95) to get to pH 9.90?

    asked by joi on March 27, 2014
  99. chemistry

    If a solution containing 34.576 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g of sodium sulfate, how many grams of solid precipitate will be formed?

    asked by lee on April 19, 2013
  100. Chemistry

    An aqueous solution with a density of 0.998 g/ml at 20 degrees Celsius is prepared by dissolving 12.8 mL of CH3CH2CH2OH (p=0.803 g/mL) in enough water to make 75.0 mL of solution calculate the molarity

    asked by Jessica on October 1, 2011

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