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February
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February 13, 2007
(a) What is the pH of a 2.0 molar solution of acetic acid. Ka of acetic acid = 1.8 x 10¯5
(b) A buffer solution is prepared by
7 answers
asked by
Dave
3,443 views
Two identical but separate strings, with the same tension, carry sinusoidal waves with the same frequency. Wave A has an
1 answer
asked by
susan
3,077 views
First, percent error can be negative, correct? Because in my lab I got -32%.
Here are my questions that I need checked: 1. List
1 answer
asked by
Jay
2,967 views
A ferris wheel is 250 ft in diameter and revolves every 40 second when in motion. You step up to the seat on the wheel at the
1 answer
asked by
Anthony Gonzalez
1,686 views
For the following set, which number has the largest absolute value?
4,-1,12,-20,19,0 Possible Answer of choice: A)0 B)19 C)-20
2 answers
asked by
jasmine20
1,585 views
what constant acceleration, in SI units, must a car have to go from zero to 60mph in 10s?
How far has the car traveled when it
1 answer
asked by
nick
1,543 views
Find tan(3 theta) in terms of tan theta
Use the formula tan (a + b) = (tan a + tan b)/[1 - tan a tan b) in two steps. First, let
0 answers
asked by
Jake
1,318 views
Why did the National Labor Union collapse? Please don't give me links - I've looked everywhere, including Wikipedia. I just
0 answers
asked by
Belinda
1,294 views
pick two systems in the body and explain how they interact
interact with what? each other? elaborate plz. The respritory system
1 answer
asked by
jon'dreneque
1,138 views
i have to do a project on the endocrine system it must be a display that is 3d any ideas it must not be store bought such as a
0 answers
asked by
Anonymous
1,089 views
I couldn't find the sets of factors that add up to -13 in this problem. Plz help, anything is greatly appreciated!
x^2-13x+36 Thx
0 answers
asked by
Emily
1,070 views
As an environmental science teacher, how would you respond to someone who tells you (a) that he or she does not believe in
1 answer
asked by
Christy
964 views
Please help.
a). How many ways can a person select three appetizers and two soups if there are six appetizers and five soups on
1 answer
asked by
Susie
940 views
Let f be the frequency, v wav the speed, and T the period of a sinusoidal traveling wave. The correct relationship is:
a)f=1/T
0 answers
asked by
susan
855 views
Describe the climate and physical characteristics of that biome and the types of organisms that live within it. Give examples of
1 answer
asked by
Jerry
844 views
Could someone please explain Charlotte Smith poem "on being cautioned against walking on a headland overlooking the sea" ?
or can
0 answers
asked by
Elda
833 views
A stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a
0 answers
asked by
COFFEE
832 views
because in the previous message about the pemdas
it is parenthesis,exponents,multiplication,division,addition,subtraction
0 answers
asked by
jasmine20
804 views
A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding
0 answers
asked by
COFFEE
796 views
what do you known about economics becouse i do not got it
These sites may help you. http://www.mcwdn.org/ECONOMICS/EconMain.html
0 answers
asked by
delisha
784 views
1~ What do red blood cells do and is there anything significantly different about them from other types of cells?
2~ What are
0 answers
asked by
Lesley
774 views
Let f be the frequency, v wav the speed, and T the period of a sinusoidal traveling wave. The correct relationship is:
a)f=1/T
0 answers
asked by
susan
772 views
World War One
Can someone tell me the final chain of events that led the world to war.. What was the final chain of events that
0 answers
asked by
Bryan
772 views
Two sinusoidal waves travel in the same direction and have the same frequency. Their amplitudes are Y1 and Y2. The smallest
0 answers
asked by
susan
767 views
How do you do a bibliography?
Bibliographies are also known as Works Cited pages these days because we use so many more sources
1 answer
asked by
Shaylee
752 views
A bicyclist travels in a circle of radius 35.0 m at a constant speed of 7.00 m/s. The bicycle-rider mass is 72.0 kg.
Calculate
0 answers
asked by
COFFEE
723 views
Find two Web sites dealing with indigenous cultures and/or religions. Discuss how modern civilization has impacted the spiritual
2 answers
asked by
Chris
720 views
what is monomial
a monomial is one term containing variables or constants. see merriam webster website too. look up monomial.
0 answers
asked by
jose
707 views
Suppose a company has the following costs:
Labor $400 Equipment $300 Materials $100 A)What is the total accounting cost? B)What
0 answers
asked by
Kelai
675 views
I couldn't find the sets of factors that add up to -13 in this problem. I have to solve this problem by factoring, not anything
0 answers
asked by
Emily
662 views
Consider the interrelatedness of everything in the cosmos as it is expressed in many indigenous religions. How do you think the
6 answers
asked by
Chris
662 views
I'm confused with transitive property, substitution postulate, addition postulate, and subtraction postulate. What are they? and
0 answers
asked by
Katrina
658 views
drawls this is from the previous post is this correct.
solve the system by subtraction. 5x-3y=13 4x-3y=11 equation#2 woudl be
0 answers
asked by
jasmine20
648 views
what it the name given to a body of land with water surrounding it?
http://www.mcwdn.org/MAPS&GLOBES/LandForms.html Let us know
1 answer
asked by
cindy
646 views
Brigham Young chose the Great Salt Lake valley because of its _________
(9 letter word) http://unicomm.byu.edu/about/brigham/
0 answers
asked by
Carl
645 views
How do you figure out a related sentence for fractions? (here is the problem) t + 1/8= 3/5
multipy the 1/8 by 5/5 or it is 5/40
1 answer
asked by
Emily
642 views
This is the chart
Canada produces 50 wheat and 20 Microchips Jpn produces 2 wheat and 12 Microships the chart shows the
0 answers
asked by
tofu
634 views
Can someone please help me with these?
Write formulas for the following compounds. copper (III) chlorate lead (II) nitrate
1 answer
asked by
Florencia
619 views
the number of protons in the nucleus of an atom is called the....
atomic number
0 answers
asked by
alejandra
613 views
Two sinusoidal waves travel in the same direction and have the same frequency. Their amplitudes are Y1 and Y2. The smallest
0 answers
asked by
susan
612 views
Im struggling on all of this and I just don't get it the terminologies or anything else would someone allow me to look at their
0 answers
asked by
Jonesy 31
611 views
Evaluate (15-5)/[((12)/(2*2))-2]
my answer that i keep getting is 1 am i even correct or completely wrong The ans is 10 see i had
0 answers
asked by
jasmine20
606 views
why arent thermometers truly accurate
Thank you for using the Jiskha Homework Help Forum. First of all you haven't mentioned what
0 answers
asked by
Danielle
601 views
how did the 1877 Haymarket strike cause the public to resent the labor movement?
http://en.wikipedia.org/wiki/Haymarket_Riot
0 answers
asked by
kayla
594 views
atoms of the same element with different atomic masses are called
isotopes. I don't do these fill in the blank problems without
0 answers
asked by
alejandra
593 views
What are the most significant similarities between the Chinese American and Japanese American [cultural]?
What are the
0 answers
asked by
Anonymous
592 views
What does a saline solution of 0.9% mean quantitatively? (Per 100 gram solution; percent by mass)
0.9 g NaCl + 99.1 g H2O.
0 answers
asked by
Ron
591 views
I need help!!!!
I have a paper entitled Study Guide and Intervention: Multiplying and dividing Rational expressions? I don't get
0 answers
asked by
Mary
584 views
I A S W A A
Thank you for using the Jiskha Homework Help Forum. Here is your answer! AcronymDefinitionIASWAAIt's A Small World
0 answers
asked by
Ron
583 views
How do i do thois problem?Please help.
Problem #1 solve the system by subtraction. 5x-3y=13 4x-3y=11 Subtract the lower
0 answers
asked by
jasmine20
566 views
Did John Lennon have any brothers or sisters
http://en.wikipedia.org/wiki/John_Lennon#Early_years:_1940-1957 =)
0 answers
asked by
Kate
558 views
How do you do this in your calculator?
tan 79=x/150 x= 140 tan 79 Calculators are differnt. Here is my 70 tan x (times key) 150 =
0 answers
asked by
Wilma
557 views
what was alexander mitchell palmer's background. What religion is he associated with and how was his relationship with his
0 answers
asked by
rach
546 views
Sometimes, technology and visual aids can be more of a distraction than a helpful component to a presentation. Provide an
0 answers
asked by
joni
540 views
Hi , My daughter has a 4-5 page assignment about how bread is made,From the time the seed is planted and the stages that follow
0 answers
asked by
shakira
539 views
At a fair run by a local charity organization, it costs 50 cents to try one's luck in drawing an ace from a deck of 52 playing
0 answers
asked by
Martha
537 views
Doing an experiment to find the solubility of calcium carbonate in 100 ml of water. The experiment is using water temp 20
0 answers
asked by
Hailey
534 views
Three cards are drawn from a deck of 52 playing cards and not replaced. Find the probability of the following:
a). Getting three
0 answers
asked by
Dan
529 views
WHAT IS A LESAT COMMON DENOMINTAIR
the least common multiple of two or more denominators. I copied it from merriam webster
0 answers
asked by
LORE 645
529 views
A radio wave has a frequency of5,000,000 Hz. Write this number in scientific notation.
??????????????????????????????????????????
0 answers
asked by
Megan
522 views
what is the voltage of a wall socket?
Most in the U. S. are 120 volts. There are more 220 v sockets being installed for operating
0 answers
asked by
Bob
522 views
I have a supposedly white gold choker. It is stamped F on the back. No other markings. Can you tell me what that means?
Thank you
0 answers
asked by
Gail
520 views
Does this sound okay, if not how might i improve it?
Thanks. In this lab the purpose states that the method of extraction is to
0 answers
asked by
Richard
515 views
can some one help me set this up into eqautions to be solved please.
One number is 6 more than another. If the sum of the smaller
0 answers
asked by
jasmine20
502 views
How would you explain the misconception statement that Asian Americans and Pacific Islanders belong to a single Asian culture
0 answers
asked by
Anonymous
494 views
how do you find the area of a triangle?
1/2 x B x H (one half times the base length times the height of the triangle)
0 answers
asked by
jules
490 views
i'm looking to find a good site for learning the basics of biochemistry.... (high school level)...
any recommendations?
0 answers
asked by
sciencestudent
490 views
can you check if how i solved it to show that my answer is no is correct.
Is -4 a solution to the equation 7x-5+3x=6+x-10 This is
0 answers
asked by
jasmine20
480 views
Find the LCM for 4 and 20
My answer is: LCM IS 20 Your answer is right
0 answers
asked by
jasmine20
470 views
what is the thickness of a penny
The thickness of a U.S. "Lincoln" one cent piece is 1.55 millimeters
0 answers
asked by
nani
468 views
why did the south industrilize more slowly than the north?
The south had fertile farmland that produced abundant crops. It also
0 answers
asked by
kayla
463 views
What are the functions and compostitions of lipids, carbs, and proteins?
http://en.wikipedia.org/wiki/Nutrition
0 answers
asked by
Ufozo
456 views
How would you explain the misconception statement that Asian Americans and Pacific Islanders belong to a singl
Please finish the
0 answers
asked by
Anonymous
444 views
I just need a quick reference was Lee on the union forces or the confederate. I always confuse him and grant.
Ok i got it now.
0 answers
asked by
Amel
429 views
2.What does it mean to “follow the course of a reaction”?
I would imagine it means to find the overall order of the reaction
0 answers
asked by
Rob
428 views
What was Von Bismark view of dealing with France?
http://en.wikipedia.org/wiki/Von_bismark
0 answers
asked by
Bryan
418 views
solve the matrix equation for ax=bx+c for x={x1}
{ x2} where a= { 6 0} b={-1 -2} c= {1] [15 1} { 4 -2} [2} please show work if
0 answers
asked by
brandon
398 views
12 2/8% = . what?
12 2/8% = 12 1/4% = 0.1225
0 answers
asked by
sis
390 views
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