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Questions Asked on December 11, 2010

which solution has the highest concentration of hydroxide ions?a ph=7.93 b ph=12.59 c ph=7.00 d ph=9.82 e ph=3.21 i know the
1. 5 answers
2. asked by jessie
3. 6,005 views
You have 353 mL of a 1.25 M potassium Chloride solution, but you need to make a 0.50 M potassium Chloride solution. How many
1. 2 answers
2. asked by Kevin
3. 5,171 views
Find the sum of the geometric series 128 - 64 + 32 - . . . to 8 terms.a) 85 b) 225 c) 86 d) 85/2 e) not possible
1. 4 answers
2. asked by Robo123
3. 4,159 views
Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up
1. 5 answers
2. asked by hannah
3. 4,104 views
the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the
1. 3 answers
2. asked by dayday
3. 3,545 views
The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide:CS2(g)+3O2(g)--->CO
1. 2 answers
2. asked by Dante
3. 3,303 views
maria's bicycle has a diameter of 64 cm. as she rides at the speed of 21.6 km/h, she picks up a stone in her tire. draw a graph
1. 4 answers
2. asked by Allison
3. 3,023 views
Each of the following solutions has a concentration of 0.1 mol/L. Compare the hydronium ion concentration and pH in each pair
1. 2 answers
2. asked by Anonymous
3. 2,981 views
The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a standard deviation of 1.2 oz.
1. 2 answers
2. asked by Deb
3. 2,505 views
The blades of a fan running at low speed turn at 200 rpm. When the fan is switched to high speed, the rotation rate increases
1. 2 answers
2. asked by Kelsey
3. 2,357 views
Perez Company began operations in 2009. Since then, it has reported the following gains and losses for its investments in
1. 1 answer
2. asked by weeli
3. 2,092 views
Assume that math SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. A score of 560
1. 3 answers
2. asked by Deb
3. 2,085 views
A monatomic ideal gas expands from point A to point B along the path shown in the drawing.(a) Determine the work done by the
1. 1 answer
2. asked by tom
3. 1,993 views
What is the first term in a geometric series with ten terms, a common ratio of 0.5 and a sum of 511.5?I got 256 as my answer.
1. 3 answers
2. asked by Robo123
3. 1,867 views
An engineer claims to have measured the characteristics of a heat engine that takes in 130J of thermal energy and produces 40J
1. 2 answers
2. asked by Mike
3. 1,820 views
Find the first four terms of each sequence.A1= 2 A2=5 An=An-1 + An-2, n≥3
1. 1 answer
2. asked by Robo123
3. 1,766 views
Calculate the period of a ball tied to a stringof length 0.3 m making 1.9 revolutions every second.
1. 3 answers
2. asked by jeremy
3. 1,688 views
Suppose that 2000 is loaned at a rate of 9% , compounded semiannually. Assuming that no payments are made, find the amount owed
1. 3 answers
2. asked by Anonymous
3. 1,677 views
the system of equations 3x -6y=20 and 2x-4y=3 Isdependent consistent inconsistent independent I think its inconsistent because
1. 1 answer
2. asked by CAs
3. 1,677 views
A bicycle wheel of diameter 26 inches is rolled through an angle of 720 degrees. how far has the wheel moved?
1. 2 answers
2. asked by Pedra
3. 1,657 views
The solubility of nickel (II) carbonate at 25 degrees celsius is 0.042 g/L.Calculate Ksp for nickel (II) carbonate. thanks
1. 1 answer
2. asked by amy
3. 1,635 views
a barefoot field-goal kicker imparts a speed of 30 m/s to a football at rest. If the football has a mass of 0.50 kg and time of
1. 3 answers
2. asked by Jesse
3. 1,586 views
Use the 68-95-99.7 rule to solve the problem. - The amount of Jen's monthly phone bill is normally distributed with a mean of
1. 2 answers
2. asked by Deb
3. 1,556 views
A 70 kg painter is painting the wall of a building. He stands on a horizontal board of length 4.7 m and mass 15 kg, suspended
1. 1 answer
2. asked by devin
3. 1,502 views
The combustion of carbon disulfide in the presence of excess oxygen yields carbon dioxide and sulfur dioxide:CS2(g)+3O2(g)--->CO
1. 3 answers
2. asked by Dante
3. 1,438 views
How many ml of water at 10 degrees c must be added to 75 ml of water at 35 degrees c to obtain a final temperature of 19 c?
1. 1 answer
2. asked by Sai
3. 1,424 views
a particle moving at a velocity of 6 m/s in the positive x direction is given an acceleration of 3.9m/s^2 in the positive Y
1. 3 answers
2. asked by vanessa
3. 1,413 views
For a model rocket, the altitude h in meters, as a function of time t, in seconds, is given by h=68t-8t^2. after how many
1. 1 answer
2. asked by Pedro
3. 1,276 views
On January 4, 2002, Wynn, Inc., bought 15% of Parr Corporation’s common stock for $60,000. Wynn appropriately accounts for
1. 1 answer
2. asked by cyndi
3. 1,271 views
A fixed 0.15 kg solid-disk pulley with a radius of 0.075 m is acted on by a net torque of 6.8 m·N. What is the angular
1. 1 answer
2. asked by Angela
3. 1,271 views
At t = 0 s a flywheel is rotating at 25 rpm. A motor gives it a constant acceleration of 0.8 rad/s2 until it reaches 100 rpm.
1. 1 answer
2. asked by applebottom
3. 1,218 views
Assume that you have a bond with a 22-year life, a five percent coupon rate, semi-annual coupon payments and the bond is priced
1. 0 answers
2. asked by Jesse
3. 1,214 views
Prepare all the necessary journal entries to record the following transactions:1. Sale of a 20 year convertible bond (dated
1. 0 answers
2. asked by cyndi
3. 1,202 views
A turntable with a moment of inertia of 0.014 kg*m2 rotates feely at 2.7 rad/s. A circular disk of mass 500 g and diameter 22
1. 0 answers
2. asked by applebottom
3. 1,158 views
Scores on a test are approximately normally distributed with a men of 70 and a standard deviation of 9. The teacher wants to
1. 1 answer
2. asked by Deb
3. 1,150 views
Healthcare professionals who have a “need to know” access to medical records have a legal and an ethical obligation to
1. 2 answers
2. asked by Nick
3. 1,125 views
The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of
1. 1 answer
2. asked by Ashley
3. 1,117 views
solve the formula for specified variableV=BQT for B B = ____
1. 2 answers
2. asked by Lindsey
3. 1,106 views
3x-6y=12find the slope, y intercept and general equation
1. 1 answer
2. asked by dylan
3. 1,085 views
a boat starts at point A, moves 3km due north, then 2 km due east, then 1 km due south, and then 4 km due east to point b. Find
1. 4 answers
2. asked by Anonymous
3. 1,071 views
An object initially at rest experiences an acceleration of 1.4 m/s^2 for 5.0s and then travels at that constant velocity for
1. 1 answer
2. asked by Kelly
3. 1,058 views
Information relating to the capital structure of Parke Corporation is as follows:` December 31 2008 2009 Outstanding shares of:
1. 1 answer
2. asked by cyndi
3. 1,046 views
A ball has a mass of 0.14 kg and is pitched w/ velocity of 38 m/s. The batter hits the ball & departs w/ a velocity of 58 m/s.
1. 1 answer
2. asked by jennifer
3. 998 views
Suppose that you were head of a family planning agency in India. How would you design a scientific study to determine the
1. 1 answer
2. asked by jim
3. 997 views
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.50
1. 1 answer
2. asked by james
3. 972 views
1. We watched TV for two hours.2. We watched TV at night/ at the shop. 3. We watched (or have watched) TV by the time he
1. 1 answer
2. asked by rfvv
3. 945 views
Four masses are positioned at the corners of a rectangle, as indicated in the figure below (not to scale).x 1kg------2kg | | |
1. 0 answers
2. asked by Sara
3. 944 views
Find the sum of the series 23 + 18 + 13 + . . .+ (-82)A) -590 B) 590 C) -649 D) 649
1. 3 answers
2. asked by Robo123
3. 940 views
A child of mass 40 kg stands beside a circular platform of mass 90 kg and radius 1.6 m spinning at 2.8 rad/s. Treat the platform
1. 1 answer
2. asked by applebottom
3. 930 views
The volume V or a cone (V = 1/3 π r² h) is increasing at a rate of 28π cubic units per second. At the instant when the radius
1. 0 answers
2. asked by Rahul
3. 922 views
A saturated solution of PbSO4 has [Pb^2+] = 1.35E-4M. What is the concentration of SO4^2-?thanks
1. 1 answer
2. asked by amy
3. 877 views
prove that out of the rectangles under the curve = e raised to the power of -xsquared on the x axis and upper vertices on the
1. 0 answers
2. asked by david
3. 877 views
Which of the following oxides yield an acidic solution when dissolved into water?P4O10 Na2O ClO7 Fe2O3 Thanks for any help.
1. 1 answer
2. asked by Jennifer
3. 874 views
Given the data 22,29,21,24,27,28,25,and 36 - and using the range rule of thumb - what is the standard deviation?
1. 3 answers
2. asked by Deb
3. 860 views
Express by an algebraic equation the statement that the line joining P(x,y)to the point (12,-5) has an inclination of arctan
1. 1 answer
2. asked by Jean
3. 855 views
Solve the system:x + y + z = -1 2x + 2y + 5z = 1 5x + 2y + 3z = 8 what is the value of x in the solution?
1. 2 answers
2. asked by Eli
3. 846 views
The Henry's Law constant for O2 in water is 1.28 x 10 ^ -3 M/atm. How many grams of O2 will dissolve in a 12 L fish tank on a
1. 1 answer
2. asked by Sarah
3. 843 views
Find a 95% confidence interval for the true population portion.In a survey of 319 female employees of a large company, 29% said
1. 0 answers
2. asked by Deb
3. 832 views
Our economy ______ operates on its production possibility curve.A. always B. usually C. sometimes D. never I'm stuck between B
1. 3 answers
2. asked by tony
3. 827 views
What is the molarity of the resultant MgCl2 solution formed by mixing 100 cm3 of 0.5 M MgCl2 solution and 150 cm3 of 0.9M MgCl2
1. 1 answer
2. asked by rebeca
3. 819 views
A circular disk of mass 0.2 kg and radius 24 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of
1. 0 answers
2. asked by applebottom
3. 776 views
what is the gerund or gerund phrase in the sentence. Cheering the team gave me a sore throat.
1. 1 answer
2. asked by Anonymous
3. 766 views
Posted by rfvv on Thursday, December 9, 2010 at 11:58pm.Posted by rfvv on Thursday, December 9, 2010 at 10:03pm. 1. We had to
1. 2 answers
2. asked by rfvv
3. 743 views
What is a domestic pricing model?
1. 2 answers
2. asked by Susan
3. 740 views
Houser Appliances accounts for all sales of its merchandise on the installment basis. Following is the unadjusted trial balance
1. 1 answer
2. asked by weeli
3. 736 views
During 2009 Bradley Corporation issued for $110 per share, 5,000 share of $100 par value convertible preferred stock. One share
1. 1 answer
2. asked by cyndi
3. 729 views
The average of Anne's, Sara's, and Julie's test score is 72. Julie scored 100 and Anne scored 10 points higher than Sara.what
1. 2 answers
2. asked by riley
3. 722 views
On February 24, 2006, Bart Company purchased 2,000 shares of Winn Corporation’s newly issued 6% cumulative $75 par preferred
1. 1 answer
2. asked by cyndi
3. 719 views
A m = 1.4 kg object moving at v = 15 m/s collides with a stationary 2.0 kg object. If the collision is perfectly inelastic, how
1. 3 answers
2. asked by Sandi
3. 709 views
1) A strategy for health promotion among infants toddlers and young children focuses on educational programs physical fitness
1. 3 answers
2. asked by tiffany
3. 704 views
Burr Corporation began operations on January 1, 2007, and at December 31, 2007, Burr had the following investment portfolio of
1. 0 answers
2. asked by cyndi
3. 696 views
The mathematical model C(x)=800x + 20,000 represents the cost in dollars a company has in manufacturing x items during a month.
1. 3 answers
2. asked by renee
3. 692 views
Explain why the angle relationship shown are not possibletriangle angles 2x-15 3x-17 4x+12
1. 2 answers
2. asked by liliana
3. 690 views
Topic- Each students will pick three things to write a consumer report on. It's your choice.Compare-For each item that you pick
1. 3 answers
2. asked by Brian
3. 689 views
If 30.0 g of H2 were used, how many grams of NH3 would be made?
1. 3 answers
2. asked by Stephanie
3. 680 views
divide 40x/64y by 5x/8y
1. 1 answer
2. asked by K
3. 675 views
A(n) 3800 kg rocket traveling at 2500 m/s is moving freely through space on a journey to the moon. The ground controllers ﬁnd
1. 0 answers
2. asked by Jaylee
3. 672 views
Wolf Company issued 1,000 of its $1,000 face amount, 20-year bonds on June 30, 2010, for $1,020,000. Each bond carries five
1. 1 answer
2. asked by cyndi
3. 672 views
what is rinétede, ropterég and miénocoser? plz anser! thx :)
1. 3 answers
2. asked by jenn
3. 663 views
What is the pOH of a 0.032 M Ca(OH)2 (strong base) solution?i solved it by doing 14=-log (0.064) 14-1.19= 12.81 but the right
1. 1 answer
2. asked by jessie
3. 649 views
a rectangular plot of land is to be seeded with grass. If the plot is 22m x 28m and a 1kg bag of seed is needed for 85m squared
1. 3 answers
2. asked by Anonymous
3. 640 views
Rosson Corporation, which began business on January 1, 2008, appropriately uses the installment sales method of accounting for
1. 2 answers
2. asked by cyndi
3. 635 views
which of the following is an example of capital?A. money in a Swiss bank account. B. a bulldozer C. a CD by Metallica D. a
1. 5 answers
2. asked by social studies
3. 634 views
with clear illustrations and examples explain how arithmetic and geometric progression can be used to solve problems related toa
1. 1 answer
2. asked by shadrack
3. 632 views
Use the Reference Angle Theorem to find the exact value of sec(13 pi/6).
1. 1 answer
2. asked by Ian
3. 622 views
We didn't have to go to school yesterday.(What is the meaning of the sentence? Is it #1 or #2? 1. We didn't go to school
1. 1 answer
2. asked by rfvv
3. 622 views
multiply r^2+7r+10/3 by 3r-30/r^2-5r-50
1. 1 answer
2. asked by K
3. 622 views
Do an ESSAY Using Kohlberg's three levels and six stages of moral reasoning, create a character that passes through each stage
1. 1 answer
2. asked by robert
3. 621 views
A sleepover is a type of party when several young people stay for the night at a friend's home.(What is the part of speech of
1. 1 answer
2. asked by rfvv
3. 618 views
1) Suppose five people are ill during the first week of an epidemic and that each person who is ill spreads the disease to four
1. 0 answers
2. asked by Robo123
3. 611 views
A car starts from rest accelerates with a constant acceleration of 1.5 m/s squared. HOw far does the car move in 4 seconds?
1. 2 answers
2. asked by ME
3. 599 views
A cylinder with a diameter of 23 cm rolls with an angular speed of 0.30 rad/s on a level surface. If the cylinder experiences a
1. 1 answer
2. asked by Renee
3. 598 views
We cooked a big turkey. Dad cooked the turkey this year. After 6 hours, the turkey was finally ready.(Is each turkey a large
1. 1 answer
2. asked by rfvv
3. 596 views
FIN500, Inc. has the following project. It is a 4 year project and required initial investment of $10 million. Depreciation is
1. 0 answers
2. asked by Juju
3. 592 views
What steps do I take in order to solve :(101-100) = .512 x (x/.5)
1. 1 answer
2. asked by MAX
3. 588 views
Aki spent 3/8 of his pocket money on food, 2/5 of the rest on transport and returned the remaining amount to his mother. What
1. 1 answer
2. asked by Donald Crentsil
3. 570 views
Two boxes are similar. The larger box has a volume that is 64 times the volume of the smaller box. What is the ratio of the
1. 1 answer
2. asked by Richard
3. 565 views
using the range rule of thumb to approximate the standard deviation - a distribution of data has a maximum value of 80, a median
1. 0 answers
2. asked by Deb
3. 557 views
1) sketch out the contours of US history between 1789 and 18652) characterize US economic development during this period
1. 4 answers
2. asked by Jim
3. 554 views
The U.S. in the 20th century has intervened in a number of places across the globe and fought several wars. What do these
1. 3 answers
2. asked by Carol Ann
3. 546 views

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