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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. 5,462 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. 4,103 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. 3,997 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. 3,592 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. 3,323 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. 3,263 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. 2,679 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. 2,588 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. 2,506 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. 2,497 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. 2,177 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. 1,769 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. 1,717 views
The sum of two squares of TWO consecutive even integers is 340. Find the integers.
1. 2 answers
2. asked by Alondra
3. 1,658 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. 1,655 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. 1,632 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. 1,556 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. 1,546 views
prediction is to explanation as _ is to _
1. 1 answer
2. asked by malik
3. 1,527 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. 1,507 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. 1,470 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. 1,426 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. 1,386 views
A company just starting a business made the following four inventory purchases in June:June 1 150 units $390 June 10 200 units
1. 2 answers
2. asked by Sah
3. 1,373 views
The width of a rectangle is 25% of the length. The perimeter is 250 cm. Find the width and the length of the rectangle.
1. 1 answer
2. asked by Bianca
3. 1,372 views
An isometry preserves distance.True False true?
1. 4 answers
2. asked by danny
3. 1,348 views
Find an equation of aline that is tangent to the curve f(x)+2cos3x and whose slope is a maximum?? Pleasee help!!
1. 1 answer
2. asked by Sima
3. 1,337 views
Two shuffleboard disks of equal mass, one orange and the other yellow are involved in aperfectly elastic glancing collision. The
1. 0 answers
2. asked by alya
3. 1,329 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 4 answers
2. asked by Katrina
3. 1,321 views
IF THERE ARE 24 GIRLS IN THE CLASS HOW MANY BOYS ARE THERE IN THE CLASS Y=3/8X
1. 1 answer
2. asked by Nadia
3. 1,287 views
What is a Chaser Solvent?
1. 1 answer
2. asked by Amandla
3. 1,245 views
to find all individuals whose name is Tom or tim, enter______ in the criteria row of the appropriate column.a. T?m B.T#m C.T$m
1. 1 answer
2. asked by nastassia
3. 1,235 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. 1,231 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. 1,230 views
In the book The devil's arithmetic, what are two symbols?
1. 1 answer
2. asked by mickey
3. 1,210 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. 1,187 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. 1,182 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. 1,174 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. 1,145 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. 1,138 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. 1,112 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. 1,104 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. 1,076 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. 1,068 views
Determine the heat of combustion of acetylene (C2H2).
1. 0 answers
2. asked by HELP
3. 1,062 views
Determine the heat of combustion of acetylene (C2H2).
1. 0 answers
2. asked by HELP
3. 1,044 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. 996 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. 990 views
Solve the initial value problem(dx/dt)+2x=cos(2t) with x(0)=5
1. 1 answer
2. asked by chris
3. 948 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. 933 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. 931 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. 912 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. 884 views
can you explain the history of northwest coast native art?
1. 2 answers
2. asked by kim
3. 882 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. 870 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. 862 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. 842 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. 835 views
What are the pros and cons of textbook social studies learning?
1. 2 answers
2. asked by Julie
3. 835 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. 834 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. 828 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. 806 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. 800 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. 798 views
what is the difference between a meteor and a meteorite?
1. 4 answers
2. asked by nicole
3. 794 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. 793 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. 792 views
hOW MANY POSSIBLE STEREOISOMERS DOES MENTHOL HAVE ?
1. 0 answers
2. asked by JAM
3. 789 views
Determine the heat of combustion of acetylene (C2H2).
1. 1 answer
2. asked by HELP
3. 787 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. 782 views
2cos(theda)-"2=0
1. 0 answers
2. asked by coal
3. 775 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. 759 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. 744 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. 735 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. 730 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. 730 views
how do you find 1/4 of 48
1. 2 answers
2. asked by joshua
3. 716 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. 714 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. 713 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. 690 views
2-2
1. 1 answer
2. asked by Chelsey
3. 688 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. 664 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. 663 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. 663 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. 663 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. 661 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. 656 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. 653 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. 650 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. 649 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. 636 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. 635 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. 634 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. 631 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. 622 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. 621 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. 620 views
are good dancers.drive Hummers. have more fun. are great lovers. cause trouble. are ditzy. are on welfare. live off other
1. 4 answers
2. asked by kate
3. 615 views
A gas has a volume of V1 = 550 mL. If thetemperature is held constant, what volume would the gas occupy if P2 = 22 P1?
1. 1 answer
2. asked by John
3. 615 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. 612 views

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