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2011
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Questions Asked on April 11, 2011

Assuming the density of vinegar is 1.0 g/mL ' what is the molarity of vinegar? (use the percent by mass of acetic acid to
1. 2 answers
2. asked by Anonymous
3. 5,542 views
HOW YOU PREPARE 30.0ML OF 0.800M HNO3 FROM A STOCK SOLUTION OF 4.OOM HNO3? WHAT SOLUTION IN ML OF THE 4.OOM HNO3 SOLUTION WILL
1. 1 answer
2. asked by SARAH
3. 4,151 views
How many moles of carbon monoxide are needed to react completely with 1.75 moles of iron oxide? based on this equation:
1. 3 answers
2. asked by Jane
3. 4,037 views
You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will
1. 1 answer
2. asked by Nicole
3. 3,638 views
Monochromatic light passes through two parallel narrow slits and forms an interference pattern on a screen. As the distance
1. 4 answers
2. asked by ashley --- HELP PLEASEE!!!
3. 3,368 views
The formula T=2*pi*sqrt[L/32] gives the period of a pendulum of length l feet. The period P is the number of seconds it takes
1. 2 answers
2. asked by Gabi
3. 3,324 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 0 answers
2. asked by Katrina
3. 2,736 views
One handbook lists a value pKb= 9.5 for of quinoline,C9H7N , a weak base used as a preservative for anatomical specimens and to
1. 1 answer
2. asked by chips ahoy
3. 2,636 views
A gardener wants to fence the largest possible rectangular area using 200 yards of fencing. Find the best length and width of
1. 9 answers
2. asked by math student 7
3. 2,591 views
The area of a photograph is 15 square inches. If the width of the photograph is 3 inches, what is its length?
1. 5 answers
2. asked by Summer
3. 2,534 views
find the volume of the region bounded by y=e^x, y=0, x=-1, x=1 rotated about the x axis
1. 1 answer
2. asked by Anonymous
3. 2,232 views
A standardized test is designed so that scores have a mean of 50 and a standard deviation of 4. What is the probability that a
1. 3 answers
2. asked by wendy
3. 1,819 views
A flask partially full of liquid water is heated to boiling and capped cold water is poured over the flask. The water boils even
1. 1 answer
2. asked by Noel
3. 1,759 views
The sum of two squares of TWO consecutive even integers is 340. Find the integers.
1. 2 answers
2. asked by Alondra
3. 1,699 views
In an Isosceles triangle, one angle is 16 degrees more than twice the measure of one of the equal angles. Find the measure od
1. 1 answer
2. asked by Valery
3. 1,695 views
how to prepare 0.250l of 0.750 M HCL solution,startin with 2.00 M HCL solution. what volume in liter of 2.00m solution we need?
1. 5 answers
2. asked by Anonymous
3. 1,665 views
A 32 g ball rolls around a 40 cm diameter L-shaped track, shown in the figure below, at 60 rpm. Rolling friction can be
1. 0 answers
2. asked by Anonymous
3. 1,602 views
Analyze the extent to which TWO of the following influenced the development of democracy between 1820 and 1840.-Jacksonian
1. 1 answer
2. asked by rocky
3. 1,591 views
prediction is to explanation as _ is to _
1. 1 answer
2. asked by malik
3. 1,560 views
A company purchased $4,000 worth of merchandise. Transportation costs were an additional $350. The company later returned $250
1. 3 answers
2. asked by ASH
3. 1,550 views
Table salt has a solubility of 36 g of salt in 100 g of water at 40°C. If 15 g of the salt are added to 50 g of water at the
1. 3 answers
2. asked by David
3. 1,542 views
a body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x =
1. 2 answers
2. asked by eugene
3. 1,464 views
15.45 grams of solid potassium chlorate decomposes when heated to form potassium chloride and oxygen gas. assuming 100% yeild
1. 1 answer
2. asked by mary
3. 1,431 views
A company just starting a business made the following four inventory purchases in June:June 1 150 units $390 June 10 200 units
1. 2 answers
2. asked by Sah
3. 1,417 views
The width of a rectangle is 25% of the length. The perimeter is 250 cm. Find the width and the length of the rectangle.
1. 1 answer
2. asked by Bianca
3. 1,402 views
An isometry preserves distance.True False true?
1. 4 answers
2. asked by danny
3. 1,383 views
Two shuffleboard disks of equal mass, one orange and the other yellow are involved in aperfectly elastic glancing collision. The
1. 0 answers
2. asked by alya
3. 1,368 views
Find an equation of aline that is tangent to the curve f(x)+2cos3x and whose slope is a maximum?? Pleasee help!!
1. 1 answer
2. asked by Sima
3. 1,367 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 4 answers
2. asked by Katrina
3. 1,356 views
IF THERE ARE 24 GIRLS IN THE CLASS HOW MANY BOYS ARE THERE IN THE CLASS Y=3/8X
1. 1 answer
2. asked by Nadia
3. 1,312 views
What is a Chaser Solvent?
1. 1 answer
2. asked by Amandla
3. 1,278 views
to find all individuals whose name is Tom or tim, enter______ in the criteria row of the appropriate column.a. T?m B.T#m C.T$m
1. 1 answer
2. asked by nastassia
3. 1,268 views
To the nearest order of magnitude, how many times greater than the speed of sound is the speed of light?104 106 1010 1012
1. 2 answers
2. asked by ashley --- HELP PLEASEE!!!
3. 1,268 views
For x ∈ [−12, 10] the function f is defined byf(x) = x7(x + 1)4 On which two intervals is the function increasing (enter
1. 1 answer
2. asked by chelsea
3. 1,267 views
In the book The devil's arithmetic, what are two symbols?
1. 1 answer
2. asked by mickey
3. 1,247 views
A particular vinegar is found to contain 5.8% acetic acid,CH3COOH , by mass.What mass of this vinegar should be diluted with
1. 1 answer
2. asked by papermate
3. 1,222 views
the width of a rectangle is 25% of the length. The perimeter is 250 cm. Find the width and the length of the rectangle. (length
1. 1 answer
2. asked by Valery
3. 1,218 views
What is a10 for the sequence (an) = 1 + 3 (n - 1)? i go 28 is that correct?What is a7 for the sequence an = 2 + 5(n - 1)? i got
1. 2 answers
2. asked by jianna
3. 1,217 views
A friend offers you the following game: You will roll 2 fair dice. If the sum of the two numbers obtained is 2,3,4,9,10,11,or 12
1. 2 answers
2. asked by Sarita
3. 1,213 views
matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0Find the value of x Don't give me the direct
1. 1 answer
2. asked by Akash
3. 1,174 views
Discuss the universal functions of marketing and those functions that would apply to the products/services provided by a
1. 0 answers
2. asked by ak
3. 1,167 views
a stack of seven identical aluminum blocks, each of length l = 17.1 cmand thickness d = 1.8 cm, stacked on a table. (a) How far
1. 1 answer
2. asked by I need help please!!
3. 1,149 views
Lets try this one last timeWhat is the value for the numerals with letters: 245,189 2=a 5=b 8=c
1. 1 answer
2. asked by JORDAN
3. 1,109 views
How many ordered pairs (x, y) of counting numbers (x = 1, 2, 3, · · · , and y = 1, 2, 3, · · ·) satisfy the equation x +
1. 3 answers
2. asked by Ladoo
3. 1,096 views
Determine the heat of combustion of acetylene (C2H2).
1. 0 answers
2. asked by HELP
3. 1,084 views
Determine the heat of combustion of acetylene (C2H2).
1. 0 answers
2. asked by HELP
3. 1,065 views
A 625mL sample of an aqueous solution containing 0.275 mol propionic acid (CH3CH2CO2H),has [H30+]= 0.00239M.What is the value of
1. 3 answers
2. asked by papermate
3. 1,035 views
how would I make a tslly table for the number of students in th third, fourth, and fifth-grade classes: 26, 25, 27, 27, 26,28,27
1. 2 answers
2. asked by Jake
3. 1,033 views
Solve the initial value problem(dx/dt)+2x=cos(2t) with x(0)=5
1. 1 answer
2. asked by chris
3. 986 views
A town has a population of 8400 in 1990. Fifteen years later, its population grew to 12500. Determine the average annual growth
1. 2 answers
2. asked by Tony
3. 979 views
Calculate how many grams of Cu are needed to produce 15L of NO(g). Please help
1. 1 answer
2. asked by Alyssa
3. 960 views
I need this by tomorrow morning,if possible.Describe one of the contemporary models of health from another country, and explain
1. 1 answer
2. asked by Flora
3. 951 views
Harry planned a rectangular garden that was 40 feet long and 10 feet wide1.What was the perimeter,in feet,of the garden that
1. 12 answers
2. asked by Frances
3. 942 views
a certain company makes inflatable swimming pools that come in four rectangular sizes.the length of each pool is twice the width
1. 0 answers
2. asked by bianca
3. 913 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 2 answers
2. asked by Katrina
3. 910 views
can you explain the history of northwest coast native art?
1. 2 answers
2. asked by kim
3. 908 views
He asked me a question.He asked a question of me. He begged me a question. He begged a question of me. He inquired me a
1. 3 answers
2. asked by rfvv
3. 897 views
Using a t test for dependent means based on .05 significance level, what is the power of each studies.Study Effect size N Tails
1. 1 answer
2. asked by chuckris
3. 883 views
What are the pros and cons of textbook social studies learning?
1. 2 answers
2. asked by Julie
3. 882 views
If x^2+bx+c is factorable and c is negative, then the signs of the last term factors of the binomials are opposite, why?I
1. 0 answers
2. asked by Amy L
3. 869 views
A bag holds 8 yellow marbles and 5 orange marbles.How many and what color marbles would you add to the bag so that the
1. 1 answer
2. asked by kyara Vargas
3. 866 views
b) A ball of mass 3.5 kg starts from rest and slides down a rough inclined plane 60 cm longin 0.6 s. i) Calculate the net force
1. 1 answer
2. asked by mimi
3. 859 views
A door, essentially a uniform rectangle of height 2.00 m, width 0.78 m, and weight 136.0 N, is supported at one edge by two
1. 0 answers
2. asked by kim...I need help please!!
3. 843 views
The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars.In 1991 a poll
1. 0 answers
2. asked by nikki
3. 842 views
There are 24 people in my class. Four of the don't play sport, 14 play volleyball and 11 play hockey. How may people play
1. 2 answers
2. asked by dhruv
3. 839 views
1.Which one is correct?Tocamos el piano. Jugamos el piano. Tocamos al piano. I think it is the Tocamos el piano because if it
1. 2 answers
2. asked by Melissa
3. 833 views
hOW MANY POSSIBLE STEREOISOMERS DOES MENTHOL HAVE ?
1. 0 answers
2. asked by JAM
3. 830 views
What would be the mass of a bag of anhydrous magnesium sulfate, MgSO4, if it contained the same amount of magnesium as a 1.00kg
1. 1 answer
2. asked by Jess
3. 828 views
what is the difference between a meteor and a meteorite?
1. 4 answers
2. asked by nicole
3. 828 views
Determine the heat of combustion of acetylene (C2H2).
1. 1 answer
2. asked by HELP
3. 814 views
A copper sheet of thickness 2.01 mm is bonded to a steel sheet of thickness 1.07 mm. The outside surface of the copper sheet is
1. 3 answers
2. asked by help me please:-(( Urgetnt
3. 811 views
2cos(theda)-"2=0
1. 0 answers
2. asked by coal
3. 802 views
A region is bounded by the function y=2x^2+3 and the x-axis over the interval(0,2). Sketch the graph of the bounded region. Use
1. 1 answer
2. asked by Anonymous
3. 793 views
ROH + TsCl + pyridine ----> R-OTs + Cl:For the reaction, what is the function of pyridine? The pyridine is on top of the arrow
1. 0 answers
2. asked by Jules
3. 779 views
Can you please check the following story, especially the part included in brackets.Thank you very much.1) Someone had stolen a
1. 1 answer
2. asked by Mike1
3. 773 views
Find each unit price and tell which is the better buy.A 1/2-pound hamburger for $3.50 ; a 1/3-pound hamburger for $3.25
1. 2 answers
2. asked by Amy
3. 769 views
A trapdoor on a stage has a mass of 20.8 kg and a width of 1.51 m (hinge side to handle side). The door can be treated as having
1. 0 answers
2. asked by HELP..HELP!!!!!
3. 757 views
Solve the initial value problem10(t+1)(dy/dt)+9y= 9t for t > -1 with y(0)=15
1. 1 answer
2. asked by Lisa
3. 748 views
how do you find 1/4 of 48
1. 2 answers
2. asked by joshua
3. 747 views
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a
1. 1 answer
2. asked by Mike
3. 740 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 0 answers
2. asked by Katrina
3. 715 views
2-2
1. 1 answer
2. asked by Chelsey
3. 713 views
The pH of saturated is found to be 13.12. A 15.0mL sample of saturated Sr(OH)2 is diluted to 250.0mL in a volumetric flask. A
1. 1 answer
2. asked by chips ahoy
3. 711 views
Can you please check these sentences for me? Thank you very much.1) Storm wants to borrow Rob's bicycle pump because she wants
1. 1 answer
2. asked by Mike1
3. 708 views
For a class demonstration, your physics instructor pours 1.16 kg of steam at 100.0°C over 4.69 kg of ice at 0.0°C and allows
1. 1 answer
2. asked by help me please
3. 693 views
15 ml of 0.5 M of HCl is added to a 100 ml sample of 0.2 M HNO2 (Ka for HNO2= 4.0 x 10^(-4)). What is the equilibrium
1. 0 answers
2. asked by GK
3. 692 views
Two shuffleboard disks of equal mass, one orange and the other yellow are involved in aperfectly elastic glancing collision. The
1. 0 answers
2. asked by alya
3. 691 views
3.Using the curve that you constructed for the decomposition of Carbon 14, find the age of a prehistoric cave painting
1. 0 answers
2. asked by Pera
3. 691 views
simplify: 1. a^2b^-3 2. (5/3)^-3 3. (a^2b^0c)^0 4. x^-2y^3 5. 3x^-2 6. n^2/n^-3 please help!!
1. 2 answers
2. asked by tim
3. 690 views
In a triangle, one angle is twice the measure of the second angle. The third angle is three times the measure of the second
1. 1 answer
2. asked by Valery
3. 690 views
What is the de Broglie wavelength of a proton that has a mass of 9.11 x 10^-31kg and travels a distance of 13km in 0.025 s?
1. 4 answers
2. asked by Sapphire
3. 685 views
I included my doubts in brackets. I really hope you can check them, too.1)Mary uses the internet mainly to carry out school
1. 1 answer
2. asked by Mike1
3. 683 views
i read this book named abduction and my home work is to write a poem about it but the problem is i don't know how to write poem?
1. 1 answer
2. asked by ross
3. 670 views
The state of Confusion enacted a statute requiring all trucks and towing trailers that use its highways to use a B-type truck
1. 1 answer
2. asked by Kimbry
3. 668 views
if anyone has the answers to exam 00382900 Facilities and staff. I would like you to review my answers. I can't post all of the
1. 4 answers
2. asked by Heather
3. 666 views
The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars.In 1991 a poll
1. 1 answer
2. asked by nikki
3. 665 views
given;n+8(n+20)=1101;n+8n+20=110 2;9n+20=110 3;9n=110-20 49n=90
1. 2 answers
2. asked by peter
3. 657 views
How is this hormones regulated: hypothlamus/pituitary axis, nervous system,feedback inhibition indicate which?1. Follicle
1. 1 answer
2. asked by ivy
3. 656 views
please help.. i really need the answer as soon as possible..Two shuffleboard disks of equal mass, one orange and the other
1. 1 answer
2. asked by irna
3. 655 views
A bridge is 40.0 m. A car weighs 1.5 x 10^4 N and it is parked with its center of gravity located 12.0 meters from the right
1. 1 answer
2. asked by Hester
3. 655 views

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