1. chemistry

    calculate the amount of heat released when 77.0g of steam at 104.5 celsius cools to ice at 0.0 celsius. I don't understand the steps to take to solve this problem. Can someone walk me through it please?

    asked by Loretta on November 12, 2014
  2. Physics

    An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic friction is 0.050, how fast was the skater initially moving?

    asked by Zac on July 24, 2012
  3. Chemistry

    Find the pH and pOH of a solution that is 1.04x10^-4 M HCl. Do i have to use an ice table to solve this? or is there a short cut? please help No. HCl is a strong acid (100% ionized), so the H^+ concentration is 1.04 x 10^-4 M.

    asked by T on July 4, 2007
  4. phy113

    An ungraduated mercury thermometer attached to a millimeter scale reads 22.8 mm in ice and 242mm in steam at standard pressure. What will the millimeter read when the temperature is. 20oC?

    asked by sam on March 26, 2014
  5. Science

    Jill is making lemonade. She mixes together some water, ice, lemon juice, and sugar. The lemonade is classified as a(n) _________. A) compound B) element C) mixture **** D) solution

    asked by Anonymous on December 12, 2017
  6. phy

    an ungraduated mercury thermometer attached to a millimeter scale reads 22.8mm in ice and 242mm in steam at standard pressure. What will the millimeter read when the temperature is 20

    asked by kate on July 2, 2013
  7. physics

    Your 300mL cup of coffee is too hot to drink when served at 87C. What is the mass of an ice cube, taken from a -20C freezer, that will cool your coffee to a pleasant 58C?

    asked by Anonymous on November 27, 2008
  8. chemistry

    How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g · C csteam = 2 J/g · C cwater = 4 J/g · C Hvap = 2, 260 J/g Hfus = 340 J/g

    asked by please help ! on March 1, 2012
  9. chem

    How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your calculation. cice = 2 J/g · C csteam = 2 J/g · C cwater = 4 J/g · C Hvap = 2, 260 J/g Hfus = 340 J/g

    asked by please help ! on March 1, 2012
  10. Physics

    An snowboard manufacturer wants to make the smoothest boards ever, she believes that can be achieved by reducing friction as much as possible. Describe 3 things that could be change on a board so that friction between it and the ice gets smaller.

    asked by Abner on November 10, 2016
  11. chem

    Calculate the solubility of magnesium hydroxide (Mg(OH)2), ksp=1.1x10^-11? i have done this problem so many times and keep getting it wrong, i know the answer is 1.4x10^-4 but how do i get there? i did an ice chart and tried doing the cube root but its

    asked by jessie on December 12, 2010
  12. math

    A grocer sells apples for $1.35 each, pears for $1.45 each and oranges for $1.60 each. She also offers a discount of 70 c for anyone who buys two pieces of fruit and a discount of $1.60 for anyone who buys 3 pieces of fruit. On day she sells 50 pieces of

    asked by athella on August 5, 2018
  13. physics

    You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 294 N for 7.6 s, during which time the refrigerator moves a distance of 3.2 m at constant velocity. (a) What is the total work (by all forces) done on the

    asked by sandy on September 30, 2013
  14. math $$

    ty sooooo much another question (sorry about all these just trying to get this done and learn it before tom.) Jennie calculated the probabilities of various events involving a coin. What is the probability of a coin landing on heads at least twice when the

    asked by Angie on February 21, 2013
  15. math

    The Toro Ski club is planning a ski trip for the upcoming long weekend. They have 40 skiers signed up to go, and the ski resort is charging $120 per person. The resort manager offers to lower the rate per person by $2 for each additional skier up to a

    asked by Sam on February 21, 2017
  16. poetry

    In" fire and ice" Frost compares fire to

    asked by ROBYN on February 4, 2013
  17. computer networking

    Mobile Training is a small training firm that offers mobile classrooms that come to your company and teaches office software,such as word,excel,QuickBooks,etc. You're asked to design a network for use in a training environment. it should be mobile,easy to

    asked by stacey on April 15, 2011
  18. Pre Algebra

    Help me with these! If I dont finish this test, my mom is gonna make me quit gymnastics forever, and I have a meet coming up! Please from the kindness of your heart, Explain how to work this out. But dont call me a cheater because im not here to have it

    asked by Netflix&Poptarts!LOL on December 17, 2018
  19. Math (Bob Pursley

    i asked about stationary points which came out at (x-3) and (x+1) i am now trying to use the first derivative test to classify the left hand point... (x-3) so picking an xL point of -4 and an xR point of -1 i get this f ' (-4) = 3 16 - 4 + 9 = 48 - 24 + 9

    asked by Pd on July 14, 2010
  20. speech

    You are concerned about the high rate of school droupouts in your community and have recentky addressed the youth at a local secondary school who were thinking of dropping out of school and look for job.please help me its urgent the task is needed tomorrow

    asked by Anikie on March 11, 2013
  21. Religion, Help

    Hello again, I hope someone could help me out. I have to work on a paper that uses 2-3 scholarly sources. This is what i have to do or the key elements of the assignment. -I have to trace the lives of Jesus and Mohammed historically -Compare what impact

    asked by Kailin on February 3, 2007
  22. Statistics and probability

    In a town the probability that an inhabitant catches malaria in any month is 0.2A farm in the town employed 15 local people Find the mean and variance of the number of employees catching malaria

    asked by Eryk on October 29, 2015
  23. math

    an electronics store receives a shipment of 40 graphing calculators including 3 that are defective. Four of the calculators are sleceted to be sent to a local high school. How many selections can be made using the original shipment

    asked by cathy on February 11, 2012
  24. math

    An electronics store receives a shipment of 20 graphing calculators, including 3 that are defective. Four of the calculators are selected to be sent to a local high school. A. How many selection can be made using the originial shipment?

    asked by cheri on March 8, 2011
  25. health

    i need some sites on then few questions i cant find anything on this can someone help me ?.... thanks! Government role and level of effect: national, state, and local Identify the government structure. Discuss the function and role for this issue

    asked by bobbi on September 17, 2011
  26. human services

    what services do you think can be added or improved in the local community to help the mentally ill? That depends upon your community. You might check out the various mental health services described in this site. (Broken Link Removed)

    asked by Anonymous on May 4, 2007
  27. literture

    look around at your local community, how easily do disabled people get around. what needs to be chnged. i need to write a persuasive essay, about this, like what needs to be changed to make it easier for disabled people to get around. please just give me

    asked by literature on March 18, 2009
  28. Government Help Please

    The power to establish local units of government such as counties and to control education are examples of_____ 1)reserved powers 2)delegated powers 3)implied powers 4)inherent powers Please help. thanks

    asked by Coraline on February 2, 2016
  29. medical billing

    The Local School District Has Asked Your Clinic To Submit a Proposal To Do Pre Employment Physicals FOr 60 Bus Drivers What Financial Or Accounting inFOrmation Do You Need To Submit The Proposal

    asked by john on November 26, 2011
  30. algebra

    A local salesman receives a base salary of $900 monthly. He also receives a commission of 7% on all sales over $1000. How much would he have to sell in a month if he needed to have a monthly income of $2900?

    asked by Wendy on April 12, 2016
  31. down syndrom

    My 18 months old only daughter is having Down Syndrom with Cynotic Heart Disease with Bilateral catarct With Bilateral Deafness.Since her birth I have got severre depression.I am unable to accept tye fact of life.The words that people are saying that our

    asked by dr sundeep on January 3, 2007
  32. math

    In a local college, 60% of the math majors are women. Fifteen math majors are chosen at random.

    asked by michelle on September 21, 2010
  33. English

    Find the participle Several passengers injured in the wreck were brought to the local hospital. Would the participle be injured

    asked by Anonymous on February 26, 2014
  34. English

    In the sentence Mr. Ortiz plays the violin in a local orchestra. Is plays present or present participle?

    asked by Kelley on November 16, 2014
  35. local maximum

    f(x) = 1/x + ln(x), 0.5

    asked by Jen on October 28, 2006
  36. Physical Science

    When you do 100 J of work on the handle of a bicycle pump, the pump does 40 J of work pushing the air into the tire. What is the efficiency of the pump?

    asked by Leah on November 3, 2012
  37. math

    A and B together can make a wall in 60 days. A has worked for 12 days, B finishes the remaining work in 36days. How many days will B take to finish the whole work alone?

    asked by sanjana singhania on November 24, 2014
  38. English

    1. Which of the following lines from Marge Piercy’s poem “To Be of Use” best demonstrates the speaker’s view that work is gratifying? (1 point) ”Botched, it smears the hands, crumbles to dust.” ”Greek amphoras for wine or oil,” ”The

    asked by germX on June 6, 2018
  39. science

    Hi. I am reading up on the Kyoto Protocol for a project and I am a little confused on the meaning of this paragraph. If someone could help explain it to me, that would be great!: Dispossession and prostitution loom for Costa Rica's rural women and children

    asked by Ginger on December 30, 2007
  40. physics

    A quantity of an ideal gas is compressed to half" its initial volume. The process may be adiabatic, isothermal or isobaric. Rank those three processes in order of the work required of an external agent, least to greatest. doesn't adiabatic mean no work, so

    asked by jane on June 23, 2009
  41. Science

    I need to have an essay written about a book and the scientific relation behind it. I would do it myself but I'm not sure I know what to do and it's a large portion of my grade and it's not due until June but I need it soon as possible so I can get the

    asked by Mickie on December 8, 2010
  42. physics

    A quantity of an ideal gas is compressed to half" its initial volume. The process may be adiabatic, isothermal or isobaric. Rank those three processes in order of the work required of an external agent, least to greatest. doesn't adiabatic mean no work, so

    asked by jane on June 23, 2009
  43. physics

    The equation given is 2SO2(g)+O2(g)->2SO3(g), and if 224L/h of O2 (at standard temp and pressure) is consumed by the reaction, how much power is produced? I can't go further than P=Work/Time and Work=P times change in V I've tried 224x2-224x3/60^2 but

    asked by Sally on February 19, 2015
  44. physics repost

    A quantity of an ideal gas is compressed to half" its initial volume. The process may be adiabatic, isothermal or isobaric. Rank those three processes in order of the work required of an external agent, least to greatest. doesn't adiabatic mean no work, so

    asked by jane on June 23, 2009
  45. English Comp

    Just want some advice on if i am doing this correctly. Thanks in advance. Combine each sentences using a semicolon. First is the original and the (#A) is my answer. 1. Abalone fishing in California is strictly regulated. A person is allowed to harvest only

    asked by Thirdcoast09 on October 9, 2014
  46. roses are red

    ROSES ARE RED by JAMES PATTERSON can someone give mi an opinion about this plot summery?do i have to change somethin? From the author James Patterson comes thriller: Roses are red. In this horrific but also romantic story Detective Alex Cross, who works

    asked by micy on January 7, 2007
  47. Language Arts

    Which of the following sentences contains parallelism? A. We sold two bikes at the garage sale, and we also sold four chairs, as well as receiving offers for three lamps. B. I perfer new things, but some people like to buy things that other people have

    asked by Callie on November 11, 2014
  48. algebra

    It takes 7 hours for Isabella to rake leaves by herself.Her brother can work 3 times as fast.if they work together,how long will its take them to rake leaves? My answer: Isabella can do one job in 7 hours (1/7in one hour).Matthew does 3/4 of the job in one

    asked by Anneliese on May 29, 2017
  49. Math

    Suppose your cell phone company offers two plans. The pay-per-call plan charges 14 dollars per month plus 6 cents per minute. The unlimited-calling plan charges a flat rate of 22 dollars per month. How many minutes per month must you use for the

    asked by Anonymous on January 26, 2017
  50. CJS210

    Can someone please help me find a website to answer these following question? Describe various types of police agencies at the local, state, and federal level and how each is organized. Identify the principal roles and functions of police organizations and

    asked by Sade C on June 9, 2012
  51. social studies

    Under the federal system of the Constitution, the States _____. c)retain much of their earlier authority but submit to the ultimate sovereignty of the national government d)have about as much authority as local governments do in unitary systems like Great

    asked by molly on September 5, 2012
  52. Other

    Where can I find a website that can create an online printable newpaper. Thia is not suppose to be a real newspaper, just a setup wizard so I can get the format. Please help. I couldn't find that. Here you can print the local news section.

    asked by Gina on November 14, 2006
  53. Social Studies

    Which of these is most likely a feature of a free trade agreement? A. Removing tariff from imported goods B. Raising taxes on exported goods C. Making it illegal to hire workers in other countries D. Providing money directly to local manufacturers Is it

    asked by Jasmine on August 15, 2017
  54. Math 9 help

    The local theater in Jamie's home town has a maximum capacity of 160 people. Jamie shared with Venus the following graph and said that the shaded region represented all the possible combinations of adult and child tickets that could be sold for one show

    asked by Anonymous on December 16, 2013
  55. Physics

    A student ties a 600.0 g rock to a 1.50 m-long string and swings it around her head in a horizontal circle. At what angular speed (in rev/min) does the string tilt down at a 13.1° angle, assuming that the local acceleration due to gravity is -9.80 m/s2?

    asked by Helpp on October 17, 2011
  56. Social Studies

    Which of these is most likely a feature of a free trade agreement? a. removing tariffs from imported goods. b. raising taxes on exported goods. c. making it illegal to hire workers in other countries. d. providing money directly to local manufacturers. A?

    asked by Anonymous on September 11, 2013
  57. pre-algrebra

    A restaurant offers a buffet dinner at group prices. The buffet costs the restaurant $6 per person. How large a group can the restaurant serve without losing money? P. S. I came up with a group of ten person that they could serve. Please let me know if

    asked by Bowier4 on September 3, 2006
  58. Social studies

    The islands of the Arctic archipelago contain______,or soil that remains Frozen even when the summer warmth temporarily melts the snow and ice that usually covers the area A:deserts B:wetlands C:mixing zones D:permafrost I think it's D

    asked by I on September 16, 2016
  59. chemistry

    Which of the following is a situation where an object’s potential energy varies as a result of changes due to its chemical composition? The melting of ice. The burning of wood. A ball rolling down a hill. A parachute slowing a skydiver's fall.

    asked by k on January 29, 2012
  60. chem

    An unknown sample was crystallized from benzene. on cooling to 0 degree centigrade in an ice bath the amount of crystals in flask was quite large, but much of it seemed to disappear when an attempt was made to collect it by suction filtration. Explain?

    asked by abuudharr on April 29, 2015
  61. general biology

    Whcih property of water explains ice floating on the top of a pond rather than sinking to the bottom? a. surface tension b. freezing point at 0 celcius c. capillary action d. extensive hydrogen bonding

    asked by Edwina on February 23, 2010
  62. Accounting

    Beginning work in process inventory 17,000 40%. Transferred in from the prior department 72,000. Ending work in process inventory 18,000 30% According to the company records the conversion cost in the beginning work in process inventory was $63.104 at the

    asked by Bella on March 1, 2015
  63. physical chemistry

    1.) Calculate delta rH for the freezing of water at one bar and -10 degrees C. The heat capacities are H2O(s)=36.9 JK-1mol-1 and H2O(l)=74.5JK-1mol-1. delta H for freezing of water at 0 degree C is -6602Jmol-1 (assume C is independent of temperature). 2.)

    asked by nicole on February 21, 2012
  64. Physics/Math

    A single force acts on a 5.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to

    asked by Technoboi11 on March 3, 2007
  65. chemistry

    Calculate the pH at the point in the titration of 25.00 mL 0.108 M HNO2 at which 10.00 mL 0.162 M NaOH have been added. For HNO2, Ka=5.1 x 10^-4 and: HNO2 + OH- -----> H2O + NO2- I know that HNO2 is a weak acid and NaOH is a strong base. Help given to me

    asked by Holly on October 4, 2011
  66. Foreign languages

    I'd like you to revise these sentences. I need to include words really used when enquiring for a hotel room. Thank you very much,Writeacher. 1)My husband and I would like to spend the period from 3 August to 20 August at Your hotel. In particular, we are

    asked by John on July 7, 2012
  67. civics 7th Grade

    The chart below describes the how the governments of two countries share power: Country A: •local and state government share power with the central government •the central government has final authority Country B •local and state governments share

    asked by Nikol on June 3, 2015
  68. Physics -

    The work function of cesium surface is 2.0eV (a)find the maximum kinetic energy of the ejected electrons when the surface is illuminated by violet light with wavelenght = 4.13 x 10^3 Angstroom unit h = 6.63 x 10^9-34)Js (b) what is the threshold wavelenght

    asked by Sola on April 26, 2007
  69. English

    which of the following is an example of a fragment? A) When Ted went to work, Bob went home. B) Although Ted went to work and Bob went home. C) Bob went to work although Ted went to work. D) Although Ted went to work, Bob went home. I Think the answer is

    asked by SHAY on December 3, 2011
  70. Math Statistics

    An investigational drug study is being conducted. The initial screening phase needs to include enough people so that the final (approved) group has at least 10 patients. The probability of a person being approved for the study is .80. what initial sample

    asked by Craig on June 6, 2009
  71. Chemistry

    I don’t know how to do this because I was sick when this was thought. If someone could please explain how to do or set up the first problem. A. Measure out 0.130 moles of salt (NaCl) into a blue, dry cup. You need to convert to mass in grams. Show work:

    asked by Please help on March 16, 2018
  72. physics

    A block of weight w = 25.0 N sits on a frictionless inclined plane, which makes an angle = 25.0 with respect to the horizontal, as shown in the figure. A force of magnitude F= 10.6 N , applied parallel to the incline, is just sufficient to pull the block

    asked by michelle on October 3, 2010
  73. English

    We are currently learning about types of communications in my english class, we were each given a question and I need help with mine. 9. You are working in a face-to-face group and one of your group members offers a suggestion which the group decides not

    asked by James on March 24, 2017
  74. College writing supplement edit

    can someone edit this Connecticut College is easily my prime choice, as I believe that its exemplary academic and career opportunities will not only help me advance as a student, but also as a future professional English teacher. The college one chooses

    asked by chhristine on October 28, 2013
  75. algebra

    Bayside insurance offers two health plans. Under plan a, Giselle would have to pay the first $200.00 or hre medical bills, plus 30% of the rest. Under plan B, Giselle would pay the fist $210.00, but only 20% of the rest. For what amount of medical bills

    asked by Mary on April 30, 2010
  76. Chemistry

    [4 points] In a recent poll, 10 local students were asked how many beers they drink in a typical week. The responses, in no particular order, were: 4, 10, 6, 14, 12, 17, 30, 15, 12, 0 At a 90% confidence level, is there an outlier in the data given above?

    asked by Alex on April 7, 2010
  77. Math

    The local swimming pool is having a contest and all students are welcome to enter. The pool officials want a new logo that has rotational symmetry with 120⁰ and 240⁰ as its angles of rotation. Draw an entry for the contest.

    asked by Amy on February 8, 2018
  78. math

    The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. The percentage of a runners that will run the mile in less than 4 minutes is %.

    asked by rick on July 31, 2012
  79. grade 12 AP calculus

    for f(x= -1/4x4-1/3x3+2x, use analytic method to find the exact intervals on which the function is a)increasing, b)decreasing, c)concave up, d)concave down, then find any e)local extreme values, f)inflection points

    asked by Alannah on December 3, 2012
  80. algebra1

    Marissa earns $3.75per hour at a local fast food restaurant. write an expression for the amount of money she earns and determine how how much she is going to earn in 7 hours. A.3.75x;$26.25 B.7x;$26.25 C.3.75x+7x;$10.75 D.7x;$3.75

    asked by angela on April 14, 2014
  81. statistics

    I cant figure this out!!! The income of trainees at a local mill are normally distributed with a mean of $1100 and a standard deviation of $150. If a sample of 100 trainees is selected, what is the probability that the sample mean will be less than $1075

    asked by Denim on September 13, 2008
  82. Personal Dimension of Educatio

    Most singular nouns that end in "s" such as politics, news, measles- take plural verbs. for example: The local news are a good source for community events. True or False.. My answer is False

    asked by Jackie on November 16, 2012
  83. spanish

    que slgnifica 'diario'? is it like daily or newspaper?: Escriba un editorial para el periódico local, expresando los buenos deseos del diario para el nuevo año.

    asked by carroll on December 11, 2008
  84. history

    Does a propaganda poster have to be opposing the cause? for example, propaganda poster for the 2012 elections Would this work... If i made some kind of propaganda poster to make people want to vote for Obama? (like some vote for obama propaganda

    asked by bob on September 16, 2012
  85. LABOUR ECON...TAX QUESTION

    k here is the question suppose a government imposed an employment tax. That is upon entering the labour force an, individual had to pay a lump sum tax. (if they don't work, they don't have to pay the tax). How ould this affect the individual's labour

    asked by tofu on November 6, 2006
  86. Block Colliding with a Spring

    A moving 1.60 kg block collides with a horizontal spring whose spring constant is 480 N/m. The block compresses the spring a maximum distance of 12.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Chris on April 10, 2016
  87. Misc

    Are there any improvments I can make in this paragraph? also i need a word for the place where there is a ----. i can't seem to find a word to put in there: This is a new concept, designed specifically for gaming. It was designed so it could allow people

    asked by mysterychicken on September 12, 2009
  88. English

    Which phrase best defines an epic simile? a. a figure of speech in which one thing is spoken of as if it were something else b. a literary technique that involves differences between meaning and intention c. a work created in imitation of another d. a

    asked by Kaai97 on June 11, 2016
  89. Economics

    Suppose that you are a policy maker concerned with correcting the effects of gases and particulates emitted by an local power plant. 1. What tools would you use? 2. What would be the benefits of the actions? 3. What would be the costs? 4. How would you

    asked by Jo on May 6, 2007
  90. Spelling

    Sort each spelling word by determining if it follows the v/vc or the vc/v pattern tyrant, equal, humor, recent, profile, linen, closet, student, smokey, legal, comet, shiver, minus, loser, punish, cavern, local, decent, vacant, panic.

    asked by Jayden on February 3, 2013
  91. Physics

    what is the general relationship between the density of solids and the density of liquids? Are you talking about the density of substance X in the solid state vs the density of the same substance in the liquid state. GENERALLY, solids have a higher density

    asked by Katrina on October 1, 2006
  92. college physics

    A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by

    asked by Lisa on September 18, 2008
  93. Physics

    A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by

    asked by Lisa on September 18, 2008
  94. Physics

    1. A weight lifter lifts a set of weights a vertical distance of 3.85 m. If a constant net force of 350 N is exerted on the weights, what is the net work done on the weights? (Show all work and include units of measure) 2. A car has a kinetic energy of

    asked by Amber on October 24, 2018
  95. chemistry

    0.10 M methylamine (CH3NH2) kb= 4.38e-4 calc the percent ionization so i did the ICE table to find that x=6.26e-3 and then i divided by .1 and then multiplied by 100. but i got the wrong answer whats did i do wrong?

    asked by Spencer on February 14, 2009
  96. physics

    starting at rest on frictionless ice, a 50 kg person applies a constant 150 Newton force on a 75 kg person. The duration of the push is .15 seconds. At what speed does each of them end up moving?

    asked by Anonymous on November 12, 2011
  97. physics

    if the static coefficient of friction in the ice rink between the floor and the skater's shoes is .2, how much pushing force can he supply before his boots will begin to slide?(the skater's mass is 120kg)

    asked by beth on November 28, 2010
  98. chemistry

    How many joules of heat are removed to completely covert 80.0 grams of water to ice at zero Celcius? For water: c = 4.179 J/g °C Hfusion = 333.528J/g Hvap = 2258.601 J/g

    asked by susan on April 20, 2016
  99. Chemistry

    What will the pH be if 15 mL of 0.1 M HCl are added to the buffer obtained by mixing 70 mL of 0.5 M CH3NH2 and 30 mL of 1.0 M CH3NH3+Cl-? (Kb for CH3NH2 is: 5.2 x 10-4 ) I'm having a hard time figuring out what to do first. is the ICE table come in handy

    asked by Maria on January 18, 2015
  100. Biochem

    You prepare a 1L solution of 0.5 M imidazole. (pKa= 7.05). Calculate the pH of the solution after you add 0.1 moles of HCl. I need to create an ICE table. I also know I need to use the Henderson- Hasselbalch equation but I'm confused on what to plug in.

    asked by Ashley on September 23, 2016