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  • Chemistry Lab? Acid-Base Titration Problems?

    22.4 mL of NaOH is needed to neutralize 0.5632 grams of potassium hydrogen pthalate (KHC8H4O4)

    What is the pH at the equivalence point?

    Give the Ka and pKa value of the acid. Explain

    the lab also gives me a table of values to plot the volume of NaOH vs. pH. Do I need the graph to answer these two questions? Or can I solve it with calculations?

    1 AnswerChemistry8 years ago
  • Please help me with Calculus Homework?

    1. Find the domain of ∑(x-2)^n

    2. Find the limit as x approaches 0 of sinxlnx

    3. Write 1/(cos(1)+ cos(1)sin(1)) as a product of two geometric series

    4. what does ∑1/n^2 -1 converge to?

    1 AnswerMathematics9 years ago
  • Help me with Calculus II Problems please!?

    how do you do these problems?

    find the derivative of y= sinx ^(cosx)

    find the limit as x approaches infinity of (1+ (3/x))^ 5x

    Does the sum of the infinite series ntan(1/n) diverge or converge?

    1 AnswerMathematics9 years ago
  • How to close all Browsers? Trying to download mediafire?

    I feel like this is a dumb question, but how do you close all the browsers on your computer? I"m trying to download mediafire on my computer and it says I need to close all the browsers on my computer before I do. Can someone please let me know how to do this?

    2 AnswersSoftware9 years ago
  • Europe History Questions?

    Please answer and explain.

    Expectations for the sixteenth century Protestant family were influenced by

    a. the doctrine of salvation by grace alone

    b. the changes in land-holding patterns by German peasants

    c. Protestant emphasis on primogeniture

    d. Martin Luther's decison to marry and start a family

    e. women who led Anabaptist congregations

    For most florentines, work was tied to

    a. banking

    b. the production of wool cloth

    c. mercenary activities

    d. the church

    e. the manufacture of leather goods

    1 AnswerHistory1 decade ago
  • Physics Help? newton's third law?

    why can you bend your fingers up futher when pushing on something than you can by just bending them?

    Is the earth pulling on the moon? Is the moon pulling on the Earth? Which pulls harder?

    Why is it important to pull up on the handle bars of your bike when riding up hill?

    When a ball is fallin? Is there a force acting on the falling ball? What is the reaction force?

    When you drop a piece of clay that had the same mass as the earth, how far would the mass clay drop compared to a piece of clay that has very little mass?

    What physics do you need to know to get the horse to pull the cart to town?

    1 AnswerPhysics1 decade ago
  • Spanish Imperfect and Preterite-- Can someone help me with this grammar?

    I have to write an essay for spanish about a trip I took but there's some places where it confuses me on which form to use. can someone edit these sentences?

    Mi mamá se durmió, pero por otro lado yo no pude dormir y estaba muy aburrida. Cuando llegábamos a Shanghai, estaba muy cansada.

    Cuando volvimos a casa, estaba triste porque me encantaba nuestro viaje a China.

    Mi mamá y yo quedamos en la casa de mi tío por una semana, y quedamos en la casa de mis abuelos por una semana también.

    Cuando llegábamos, mis parientes estaban esperando por nosotros y nos dieron una fiesta grande.

    Me divertí mucho con mis primas y visité la escuela primaria de mi mamá.

    Also, do i have to use articles in this sentence?

    Compré muchas cosas de China, como libros, ropa, y recuerdos.

    1 AnswerLanguages1 decade ago
  • Pokemon ev training by killing slowpokes?

    I'm training my shuckle in the slowpoke well so I can EV train its HP. however, after i counted the 28 slowpokes i killed (1 EV point each) and i gained a level. my shuckle only got 2 max HP points.

    my shuckle was holding exp. share and my snorlax, my first pokemon, was holding macho brace. Is there anything I did wrong? Arent I supposed to gain 7 HP points?

    2 AnswersOther - Games & Recreation1 decade ago
  • Taking Spanish 3 at a community college?

    I'm a current high school student. I'm going to complete Spanish 2 this year and take Spanish 3 over the summer. What college Spanish class is equivalent to Spanish 3 for a college transcript?

    2 AnswersHigher Education (University +)1 decade ago
  • Location of Countries based on Latitude and longitude, please help!?

    please help me find the countries...

    20 degrees south, 170 degrees west

    7 degrees south, 17 degrees east

    18 degrees north, 44 degrees east

    1 AnswerGeography1 decade ago
  • Favorite Etude by Frederich Chopin?

    I'm looking for a chopin etude to play at my next piano recital.

    I'm already playing the Revolutionary etude, and I was thinking about op 10 no 1 "waterfall", op 10 no 4 "Torrent", op 10 no 8 "sunshine" or op 25 no 12 "ocean"

    In your opinion, what would be the best etude to play out of those four? Any other suggestions on your favorite Chopin etude is good too.

    4 AnswersClassical1 decade ago
  • algebra 2 help! 10 points to best answer?

    y= -70e^x

    if the exponent x in this equation were negative, would it be exponential growth or decay? I know if 0< x <1 would be decay, but not sure about the negative.

    can you explain the process of factoring the equation

    x^3 - 8?

    I know I can just take the cube root of 8, but I want to know how to factor it properly.

    How would you find the vertical asymptotes and holes for the graph of these equations?

    y= 3/ x+2

    y= x+3/ (2x+3) (x-1)

    y= x^2 - 4/ x+2

    Thanks

    2 AnswersMathematics1 decade ago
  • Algebra 2 please help! 10 points to best answer?

    Without graphing, determine whether each equation represents exponential growth or exponential decay.

    y= -70e^x

    When I graph it it has a downward slope so I assume it is decay, but the "b value" in this equation which is e is greater than 1. I'm confused. Can someone explain this to me?

    Also can someone explain this word problem to me as well?

    A new flu virus is introduced when a stranger visits an isolated village of 8000 people. Every infected person infects two more each day.

    a. Write an exponenetial function to model the number of UNINFECTED people.

    b. Determine how many people remain uninfected after one week.

    c. After how many days will the entire population be infected?

    1 AnswerMathematics1 decade ago
  • how to solve these algebraic equations? please help?

    x^3 - 5x^2 +3x + 9 = 0

    how would you factor and solve?

    and these:

    4x^3 - 16x^2 - 12x = 0

    24x^3 - 22x^2 - 5x + 6 = 0

    I don't know how to solve! thanks

    3 AnswersMathematics1 decade ago
  • Find the relative maximum, relative minimum, and zeros of the function?

    I don't know how to do this. Can someone help me find the relative maximum, relative minimum, and zeros of the function : f(x)= x^3 + 4x^2 - 5x.

    How would you find it using a graphing calculator?

    3 AnswersMathematics1 decade ago
  • Rewriting y= -x^2 + 4x - 1 in vertex form, please help!?

    please help me. I don't understand this step.

    to complete the square, add and subtract (–2)^2 on the right side of the equation y = –(x^2 – 4x) – 1.

    y = –[x^2 – 4x + (–2)^2] – 1 + (–2)^2

    but I don't get it because I thought you were supposed to add and subtract the same term from the same side, but we're just adding the same number twice.

    1 AnswerMathematics1 decade ago
  • Spanish 2.. please help!! 10 easy points?

    What does this sentence mean?

    Si, mi bistec esta como hielo.

    I don't understand the word como in the sentence.

    What kind of question could you ask to get that answer? Please give me an example.

    How do you conjugate the verb dejar in the preterite?

    and how would you say:

    The waiter served me and brought what I ordered.

    4 AnswersLanguages1 decade ago
  • Favorite Piano Piece from each musical period?

    What's is your favorite piano piece for

    Baroque period

    Classical period

    Romantic period

    Impressionist period

    and

    Contemporary period?

    1 AnswerOther - Music1 decade ago
  • Spanish 2 please help? 10 points to best answer?

    For this sentence:

    Correr largas distancias si no corres frecuentemente.

    What does the si mean?

    Would the negative command be:

    No corras largas distancias si no corres frecuentemente?

    I'm a little confused because I also thought the adjective came after the noun.

    Shouldn't it be distancias largas instead of largas distancias?

    Also, if I wanted to change these sentences into positive and negative commands :

    ponerle sal a la comida

    decirle adios a la grasa

    would the verbs be ponle, no pongasle and dile and no digasle?

    Thanks

    7 AnswersLanguages1 decade ago