Archives
2013
March

Questions Asked on March 18, 2013

The Ksp of PbBr2 is 6.60× 10^–6.What is the molar solubility of PbBr2 in pure water? What is the molar solubility of PbBr2 in
1. 4 answers
2. asked by Anon
3. 37,411 views
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca^2+ (aq) and 0.0390 M Ag^+ (aq). What will be the
1. 1 answer
2. asked by Anon
3. 9,127 views
(Ksp= 5.0*10^-13)1) Calculate the molar solubility of AgBr in 3.0×10^−2 M AgNO3 solution. 2) calculate the molar solubility
1. 3 answers
2. asked by Jonah
3. 8,635 views
a pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large plain pizza. how large should the
1. 2 answers
2. asked by paula
3. 7,025 views
What is the specific heat in J/g Celsius for a metal sample with a mass 95.6 g which absorbs 841 J of energy when it's
1. 2 answers
2. asked by Mike
3. 5,357 views
an adult whale weighs 120 tons. a baby blue whale weighs 1/40 of the weight of the adult blue whale. how many pounds does the
1. 22 answers
2. asked by VANESSA
3. 4,596 views
32% of adult internet users have purchased products or services online. For a random sampling of 200 adult users, find the mean,
1. 2 answers
2. asked by Kay
3. 4,388 views
A spherical bowling ball with mass m = 4.1 kg and radius R = 0.116 m is thrown down the lane with an initial speed of v = 8.9
1. 1 answer
2. asked by JOJO
3. 4,382 views
Calculate the pH at the equivalence point for the titration of 0.130M methalamine (CH3NH2) with 0.13M Hcl. The Kb of methyl
1. 5 answers
2. asked by Joe
3. 3,676 views
Solutions of sodium thiosulfate are used to dissolve unexposed AgBr (Ksp = 5.0 10-13) in the developing process for
1. 1 answer
2. asked by Howard
3. 3,664 views
If you rolled a number cube 100 times, how many times would you expect to get an even number?A.25 B.75 C.50 D.38 I think it is
1. 4 answers
2. asked by Cassie
3. 3,449 views
The letters in the word Paris are written on slips of paper and placed in a bag. Each letter will be put back after it is drawn.
1. 7 answers
2. asked by Cassie
3. 3,315 views
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and
1. 1 answer
2. asked by Felix
3. 3,233 views
What concentration of SO32– is in equilibrium with Ag2SO3(s) and 3.20 × 10-3 M Ag ? The Ksp of Ag2SO3=1.50×10^–14Is the
1. 7 answers
2. asked by Anon
3. 3,197 views
in the accompanying diagram, RST is a right triangle, SU is the altitude to hypotenuse RT, RT=16 and RU=7
1. 1 answer
2. asked by Anonymous
3. 3,191 views
The GMAT test is required for admission to most graduate programs in business. In a recent year, the GMAT test scores were
1. 2 answers
2. asked by Christina
3. 3,065 views
hans uses a wheelchair. although he has a ramp to get in his house he finds it difficult to get his wheelchair up the ramp.
1. 1 answer
2. asked by mary
3. 2,882 views
A bag holds 2 yellow, 1 green, and 2 red marbles. If you were to draw a marble from the bag 150 times, and replace it after each
1. 3 answers
2. asked by Cassie
3. 2,826 views
The average age of a vehicle registered in the United States is 8 years, or 96 months. Assume the standard deviation is 16
1. 2 answers
2. asked by Christina
3. 2,619 views
a right triangle has an acute angle(theta) suck that cot(theta)=15. find cos(theta)
1. 1 answer
2. asked by brenna
3. 2,571 views
The volume of a cylinder is given by formula V= pi(3.14) r^2h where r is base radius and h is heighta) the height of a cylinder
1. 2 answers
2. asked by Jim
3. 2,548 views
1. I am good at computers.2. I am good with computers. (Are both the same in meaning?) 3. I am good at using computers. 4. I am
1. 1 answer
2. asked by rfvv
3. 2,219 views
A test charge of +3.00 10-6 C experiences a downward electrostatic force of 11 N when placed at a certain point in space. What
1. 1 answer
2. asked by Melissa
3. 2,179 views
A cone 7dm high and 6 dm in diameter is placed on the ground. Sand is poured over it until conical heap 21 dm high and 33 dm
1. 5 answers
2. asked by anoynomous
3. 2,130 views
In which of the following solution would CaC2O4 have the highest molar solubility? Please help.A) 0.01 M NaCl B) 0.01 M H2C2O4
1. 1 answer
2. asked by Felix
3. 2,103 views
You roll a pair of number cubes and then flip a coin. Is this an example of independent or dependent events?A.independent
1. 4 answers
2. asked by Cassie
3. 2,069 views
The team ______ won the game is my favorite.which word correctly completes the sentence above? a. which b.whom c. who d. that
1. 2 answers
2. asked by mary
3. 1,915 views
A community college has 2,000 students and 50 instructors. Next year the enrollmentwill be 6,000. How many new instructors
1. 2 answers
2. asked by naomie
3. 1,881 views
A stone of mass 0.55 kilograms is released and falls to the ground. Measurements show that the stone has a kinetic energy of 9.8
1. 3 answers
2. asked by Anonymous
3. 1,761 views
A basket contains 5 green lollipops, 12 red lollipops, and 7 orange lollipops. When a lollipop is taken from the basket, it is
1. 5 answers
2. asked by Cassie
3. 1,733 views
a species of orchid is being studied. The population 'p' at time 't' years after the study started is assumed to be p =
1. 2 answers
2. asked by lindsay
3. 1,694 views
in the digestive tract, mouth is bolus toa. stomach is to chyme b. gallbladder is to insulin c. small intestine is to
1. 3 answers
2. asked by mary
3. 1,585 views
How do I do this? Without a calculator, determine two angles between 0 degrees and 360 degrees that have a cosine of negative
1. 1 answer
2. asked by Tristan
3. 1,518 views
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s?* 2-3 Conservation of Momentum 2)
1. 1 answer
2. asked by Isis
3. 1,498 views
A bag has 6 green marbles, 4 red marbles, 5 yellow marbles, and 3 purple marbles. What is the probability of choosing a purple
1. 3 answers
2. asked by Cassie
3. 1,466 views
What is the probability that a month picked at random will have 31 days?A.5/12 B.4/12 C.7/12 D.8/12 I think it is C...?
1. 3 answers
2. asked by Cassie
3. 1,433 views
a bag contains lettered tiles, two for each letter of the alphabet. What is the probability of drawing a tile with the letter A?
1. 6 answers
2. asked by jill
3. 1,419 views
Monochromatic x-rays (λ = 0.166 nm) from a nickel target are incident on a potassium chloride (KCl) crystal surface. The
1. 1 answer
2. asked by Ken
3. 1,324 views
a and b are positive numbers that satisfy the equation \frac {1}{a} - \frac {1}{b} = \frac {1}{a+b} . Determine the value of
1. 1 answer
2. asked by Anonymous
3. 1,320 views
How many drops (1 drop=0.05mL) of 0.20M KI must we add to 100.0 mL of 0.010M Pb(NO3)2 to get a precipitate of lead iodide to
1. 5 answers
2. asked by Cody
3. 1,314 views
U.S. Presidents. The ages of the 44 presidents at their first inauguration (as of 2011) are:57 57 49 52 50 42 54 55 64 61 61 64
1. 1 answer
2. asked by slomomo
3. 1,307 views
Review the poems we have studied in this unit and select the one that appealed to you most. Analyze the poem by answering the
1. 2 answers
2. asked by Carlos
3. 1,278 views
I have an average of 66.67 i need a 70percent to pass the class, what do i need to get on thenext test?
1. 2 answers
2. asked by jenn
3. 1,275 views
A pinhole camera has a small circular aperture of diameter D. Light from distant objects passes through the aperture into an
1. 1 answer
2. asked by Ken
3. 1,272 views
There are 5 different cookies in a bag. One of them is your favorite, chocolate chip. What is the probability that you will not
1. 3 answers
2. asked by Cassie
3. 1,259 views
How many grams ammonium chloride and how many milliliters 3.0 M sodium hydroxide should be added to 200 ml of water and diluted
1. 1 answer
2. asked by ---
3. 1,231 views
1.This applied artist creates the forms of manufactured products. (1 point) graphic designer industrial designer interior
1. 5 answers
2. asked by Delilah
3. 1,229 views
the perimeter of parallelogram QRST is 26cm. If ST=e 6cm what is the length of RS
1. 1 answer
2. asked by danielle
3. 1,212 views
Let N be a 5-digit palindrome. The probability that N is divisible by 4 can be expressed as \frac{a}{b}, where a and b are
1. 7 answers
2. asked by Joe
3. 1,189 views
Suppose that each of the three masses in the figure below has a mass of 5.50 kg, a radius of 0.0700 m, and are separated by a
1. 0 answers
2. asked by Eryca
3. 1,173 views
Write 10 sentences of subordination. Write 2 sentences for each of the following subordination. For each subornator, one
1. 11 answers
2. asked by Jemma
3. 1,170 views
when i add methyl salicylate to aqueous sodium hydroxide, immediately a white solid forms... that is sodium salicylate is it??
1. 1 answer
2. asked by Anonymous
3. 1,151 views
1. What are you able to do?I am able to play the violin. 2. What are you able to play? I am able to play basketball. 3. What are
1. 1 answer
2. asked by rfvv
3. 1,137 views
find the volume of a square pyramid. Round to the nearest tenth(slant height=20 base=13)
1. 1 answer
2. asked by Shay
3. 1,137 views
At 22 °C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has
1. 2 answers
2. asked by Anon
3. 1,130 views
In an arcade game a 0.099 kg disk is shotacross a frictionless horizontal surface by compressing it against a spring and
1. 2 answers
2. asked by Anonymous
3. 1,120 views
A reaction mixture of 4.0 mL of 0.002 M SCN- and 5.0 mL of 0.002 M Fe3+ is diluted to 10.0 mL with 0.1 M HNO3 to form the
1. 1 answer
2. asked by Anonymous
3. 1,116 views
WHAT WOULD A GOOD ESSAY BE FOR A PROBLEM IN THE WORLD? LIKE POLLUTION, OR BANKRUPTCY? ANY OTHER IDEA'S?
1. 5 answers
2. asked by paragonnova
3. 1,113 views
1. Motor and perceptual consequences of brain damage affect: (Points : 1)visual-spatial relations; vision and hearing; and bowel
1. 2 answers
2. asked by Ms P
3. 1,099 views
A cube has 8 vertices. For each pair of distinct vertices, we connect them up with a line segment. There are (8 2 )=28 such line
1. 2 answers
2. asked by kapil
3. 1,097 views
Please help,A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree,
1. 0 answers
2. asked by Kathy
3. 1,094 views
A bookshop had 60 boxes of pencils. Each box contained 85 pencils. Half of the pencils were packed into packets of 25 pencils
1. 1 answer
2. asked by lidia
3. 1,080 views
What mass in grams of sodium hydroxide is produced if 20.0 g of sodium metal reacts with excess water according to the chemical
1. 1 answer
2. asked by Kayla
3. 1,080 views
An NGO is helping the poor people of earthquake hit village by providing medicines. In orderto do this they set up a plant to
1. 1 answer
2. asked by anoynomous
3. 1,077 views
How many liters in volume are occupied by 250 liters of bromine at STP?
1. 2 answers
2. asked by Anonymous
3. 1,067 views
A basket contains 15 red numbered balls and 10 white numbered balls. A sample of five balls is selected. How many samples
1. 1 answer
2. asked by alice
3. 1,066 views
Calculate the concentration of ions in the following saturated solutions.(a) [I −] in AgI solution with [Ag+] = 8.1 10-9 M (b)
1. 1 answer
2. asked by Anonymous
3. 1,052 views
Cylindrical groove is made in a cylindrical piece of wood of length 17.5cm. The groove is filled with graphite and the
1. 1 answer
2. asked by anoynomous
3. 1,046 views
1. He worked hard to be a best baseball player.2. He worked hard to be the best baseball player. (which one is right? Do we have
1. 1 answer
2. asked by rfvv
3. 1,037 views
in the digestive tract, mouth is to bolus asa. stomach is to chyme b. gallbladder is to insulin c. small intestine is t
1. 1 answer
2. asked by mary
3. 1,037 views
A ball whirls around in a vertical circle at the end of a string. The other end of the string is fixed at the center of the
1. 0 answers
2. asked by ahmad
3. 1,034 views
If I travel to Mexico and buy a 55g gold braclet for 20 dollars and take the braclet and submerge it in water starting out with
1. 1 answer
2. asked by patti
3. 1,032 views
Cr + Sn2+help me balance
1. 2 answers
2. asked by dug
3. 1,030 views
There were 610 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receipts were
1. 2 answers
2. asked by betsy
3. 1,030 views
ABCD is a square where M and N are midpoints of AD and CD, respectively. If sin∠MBN=a/b, where a and b are coprime positive
1. 1 answer
2. asked by Stranger
3. 1,022 views
1.You flip a coin 30 times and get heads 11 times, so the chance of getting heads is 11/30. Is this an example of theoretical or
1. 5 answers
2. asked by Cassie
3. 1,018 views
A 7·cm tall candle is placed 125·cm from a lens with a focal length of +25·cm. Note: enter the absolute value of your answers
1. 1 answer
2. asked by wally
3. 1,015 views
Is there a way to prove this in upwards of 5 steps? Apparently there is??Prove. 2^n + 2^n = 2^(n+1) I posted this before however
1. 4 answers
2. asked by Joshua
3. 1,012 views
A triangle has side lengths of 6, 8, and 9. What type of triangle is it?
1. 1 answer
2. asked by mayra
3. 1,003 views
A roller coaster cart travelling due north at 20m/s that turns left during an interval of 4.0s without changing speed. Find the
1. 1 answer
2. asked by Annie
3. 998 views
A thin spherical shell of mass M = 2.00 kg is released from rest at the top of an incline of height H=1.31 m and rolls without
1. 2 answers
2. asked by Sarah
3. 996 views
The sun goes around the center of our galaxy once every 250 million years. The sun is also 2.55×10^20 m from the center of our
1. 0 answers
2. asked by please..anyone help!!
3. 984 views
A company has total assets of $8,500,000 and its total turnover of 2.35 times. If the return on assets is 9 percent, what is its
1. 0 answers
2. asked by Todd
3. 978 views
How many integers appear in both of the following arithmetic progressions:A1: 2, 9, 16,.....2+(1000-1)*7 A2: 3, 12,
1. 2 answers
2. asked by please..anyone help!!
3. 970 views
Suppose we take a random sample of size n from a normal population with variance, σ2 . It can be shown that (n−1)s2/σ2 has a
1. 1 answer
2. asked by sandy
3. 961 views
A SUPPOSED TREASURE OF OLD SILVER JEWELRY IS UNCONVERED. a.02M^3 BOX OF THE "OLD JEWELRY" HAS A MASS OF 177KG.IS IT R EALLY OLD
1. 1 answer
2. asked by lili
3. 958 views
1. If 96% of Chinese couples have one child (which is female 50% of the time), and the remaining 4% of Chinese couples engage in
1. 1 answer
2. asked by Eddie
3. 958 views
What is the pH of a saturated zinc hydroxide solution?
1. 1 answer
2. asked by Julian
3. 956 views
Hi im trying to help my daughter figure out the area and perimeter of her bdrm which is 11'3 * 17'
1. 1 answer
2. asked by Anonymous
3. 946 views
The functionf(x)=x^4−10x^3+40x^2−80x+64 has four complex roots, one of which is 2−2i. What is the sum of all real and
1. 2 answers
2. asked by Stranger
3. 946 views
I have 3 History question that I am completely stuck on. Please help? ThanksWhich answer best describes an important outcome of
1. 2 answers
2. asked by Kaelyn Rae
3. 944 views
Is the dissolution of calcium sulfate endothermic or exothermic? How do you know?
1. 1 answer
2. asked by Chris
3. 932 views
You've received an invoice for $3000.00 with terms of 3/10, 1/20.n/30. How much will you have to pay if you pay the bill in 12
1. 2 answers
2. asked by Janette
3. 931 views
The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the
1. 1 answer
2. asked by Ozgun
3. 922 views
A bungee jumper (m = 66.00 kg) tied to a 39.00 m cord, leaps off a 69.00 m tall bridge. He falls to 5.00 m above the water
1. 0 answers
2. asked by Hilary
3. 920 views
Rewrite in terms of an expression containing only cosines to the power 1.4 cos^6x
1. 1 answer
2. asked by Sarah
3. 917 views
C(x)=x^2−20x+111 represents the total cost, in dollars, to produce x gallons of paint. How many gallons of paint should be
1. 1 answer
2. asked by please..anyone help!!
3. 915 views
bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the
1. 1 answer
2. asked by wayne
3. 900 views
A sequence is generated by the recurrence relation Ur+1 = 1/Ur -3. Given that U2 = U1 find the possible of U1
1. 1 answer
2. asked by lindsay
3. 892 views
A 80 kg climber is standing horizontally on a perfectly vertical cliff face. The climber is 1.8 m tall and is attached by a 2 m
1. 2 answers
2. asked by Stranger
3. 892 views

Back to March 2013

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025