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Questions Asked on April 29, 2010

what is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0g of benzene? the freezing point of benzene is 5.48
1. 3 answers
2. asked by Kim
3. 4,519 views
Consider the first order reaction A --> products where 25% of A disappears in 24 seconds. What is the half life of this
1. 1 answer
2. asked by omar
3. 4,505 views
The vapor pressure of nitrogen at several different temperatures is shown below.Temperature Pressure () 65 130.5 70 289.5 75
1. 2 answers
2. asked by HELp
3. 4,108 views
What is the boiling point of each solution?a).50mol glucose in 1000g H2O b)1.50mol NaCl in 1000g H2O
1. 3 answers
2. asked by Kim
3. 3,292 views
Identify the molecule that has polar bonds but is non-polar (net dipole moment is 0)a. CHCl3 b. NH3 c. BCl3 d. SCl2 e. H2S
1. 5 answers
2. asked by Mary
3. 3,202 views
What is the freezing point of each solution?a)1.40mol Na2SO4 in 1750 g H2O Are these the right steps? 1.40mol Na2SO4 / 1.75kg =
1. 1 answer
2. asked by Jack
3. 3,024 views
Draw the structure for cis-2,3-dibromo-2-hexene.
1. 3 answers
2. asked by ima
3. 2,908 views
I have these two questions on my section review that I don't know how to answer. Can someone help me? Please and thank you.3.
1. 3 answers
2. asked by Ana
3. 2,906 views
Melting point of gold is 1064*C What is the freezing point of gold?
1. 1 answer
2. asked by rhon
3. 2,443 views
An excess of zinc is added to 125 mL of 0.100 M HCl solution, What mass of zinc chloride is formed?Zn + 2HCl ----> ZnCl2 + H2
1. 5 answers
2. asked by Ana
3. 2,412 views
in a calorimeter can(water equivalent=40g)are 200g of water and 50g of ice,all at 0 degreea celcius.into these poured 30g of
1. 2 answers
2. asked by KABELO
3. 2,233 views
How many acetone molecules are present in a bottle of acetone with a volume of 325ml and density of acetone .788g/cm
1. 1 answer
2. asked by Anonymous
3. 2,226 views
Determine the freezing points of each 0.20m aqueous solution.a)K2SO4 b)CsNO3 c)Al(NO3)3
1. 1 answer
2. asked by Jack
3. 2,169 views
What is the target organs for Luteinizing Hormone and the Follicle Stimulating Hormone?
1. 1 answer
2. asked by Melanie
3. 1,913 views
find all solutions of the equation 4cos^2x-4cosx+1=0
1. 1 answer
2. asked by Brielle
3. 1,826 views
2SO3(g) -> 2SO2(g) + O2(g) Delta H = 197kjFor this reaction shown above, describe the changes that will occur to the number of
1. 1 answer
2. asked by Jake
3. 1,655 views
Yellow CdS pigment is prepared by reacting ammonium sulfide with cadmium nitrate. What mass of CdS can be prepared by mixing
1. 1 answer
2. asked by Ana
3. 1,627 views
What is the freezing point of each solution?a)1.40mol Na2SO4 in 1750 g H2O b)0.060 mol MgSO4 in 100g H2O
1. 1 answer
2. asked by Jack
3. 1,493 views
Find the minimum initial speed of a projectile in order for it to reach a height of 2039 km above the surface of the earth.
1. 1 answer
2. asked by Anonymous
3. 1,415 views
A steel ball has a mass of 4.0 kg and rolls along a smooth, level surface at 62m/s. What is its kinetic energy. At first the
1. 1 answer
2. asked by Kasmira
3. 1,400 views
A sample of 12 measurements has a mean of 34 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14
1. 3 answers
2. asked by Jen
3. 1,343 views
A 0.400 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, striking
1. 2 answers
2. asked by Physics
3. 1,334 views
the last week of the month a car dealership sold 12 cars.A new sale promotion came out the first week of the month and sold 19
1. 1 answer
2. asked by Ricardo
3. 1,216 views
A deep-sea diver uses a gas cylinder with a volume of 13.0 L and a content of 50.1 g of O2 and 33.4 g of He. Calculate the
1. 1 answer
2. asked by Anonymous
3. 1,208 views
I used 10mL of unknown NaCl-NaBr mixture titrate with 0.10M silver nitrate solution.10.15mL of silver nitrate solution is used.
1. 1 answer
2. asked by albee
3. 1,190 views
What literary devices are in the song "Me Against the World" by Tupac Shakur?
1. 0 answers
2. asked by Troy
3. 1,178 views
What volume of 6M HCl and 2M HCl should be mixed to get 2 litres of 3M HCl?
1. 1 answer
2. asked by Sreeraag
3. 1,170 views
How many ways can three cars be parked in a row of four parking spaces?I have no idea how to do this?
1. 4 answers
2. asked by Bart
3. 1,156 views
A child sits in a wagon with a pile of 0.60 kg rocks. If she can throw each rock with a speed of 10 m/s relative to the ground,
1. 1 answer
2. asked by Carden
3. 1,144 views
Question 1 This step in planning a Web project involves learning about HTML text editors, the original tools for creating Web
1. 0 answers
2. asked by Christopher
3. 1,144 views
Kenisha sells athletic shoes part-time at a department store. She can either earn $500 per month plus a 4% commission on her
1. 1 answer
2. asked by jessica
3. 1,092 views
Assuming you have a mixture of 2-nitrophenol and 4-nitrophenol, which solvent would be most suitable for recrystallization if
1. 0 answers
2. asked by Maria
3. 1,090 views
You are holding a shopping basket at the grocery store with two 0.51 kg cartons of cereal at the left end of the basket. The
1. 1 answer
2. asked by Carden
3. 1,089 views
the last week of a month a car dealership sold 12 cars.A new sale promotion came out the first week of the month and sold 19
1. 2 answers
2. asked by Ricardo
3. 1,072 views
If 250 mg of a radioactive element decays to 200 mg in 48 hours, find the half-life of the element
1. 1 answer
2. asked by Dom
3. 1,048 views
If the concentration of H3O+ is 3.5 X 10^-3 M. What is the concentration of OH-
1. 1 answer
2. asked by John
3. 1,042 views
Describe the functions of organizational networks and specialized criminal justice databases in 200 to 300 words, recognizing
1. 0 answers
2. asked by jessie
3. 1,041 views
(a)Comparison of GPA for randomly chosen college juniors and seniors:xbar= 3.05, s1 = .20, n1 = 15, xbar2= 3.25, s2 = .30, n2 =
1. 2 answers
2. asked by peter
3. 1,036 views
A long horizontal hose of diameter 4.6 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1 cm. Water
1. 1 answer
2. asked by kris
3. 1,035 views
(a) Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to six times the earth's
1. 1 answer
2. asked by Anonymous
3. 1,035 views
At a ski area in Vermont, the daytime high temperature is normally distributed duringJanuary, with a mean of 22°F and a
1. 1 answer
2. asked by john
3. 1,008 views
What are proper techniques to induce crystallization from a saturated solution?(Select all correct answers.) Allowing the
1. 1 answer
2. asked by Joanna
3. 961 views
Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution.1.) In the first step, If
1. 2 answers
2. asked by Lauren
3. 907 views
compare cost control strategies of employer-sponsored health plans
1. 0 answers
2. asked by roberta
3. 895 views
1. In this problem, we will analyze the profit found for sales of a certain product. A demand equation (sometimes called a
1. 0 answers
2. asked by Anonymous
3. 886 views
If 0.125 L of a 0.100 M solution of Ba(OH02 are mixed with 0.200 L of a 0.0750 M solution of H3PO4, the following reaction takes
1. 1 answer
2. asked by Ana
3. 871 views
Can someone help me I need to find out how to solve the following equationWhat is the PH/POH of a .0727m H3O+ Solution at 25
1. 1 answer
2. asked by Help
3. 859 views
in right triangle ABC, the altitude CD is drawn to hypotynuse AB. The length of DB is 5 units longer than AD.a) If AD = x,
1. 0 answers
2. asked by Anonymous
3. 858 views
I have to decide what familiar saying or proverb is hidden in two of these formally written statements. Then I need to write it
1. 1 answer
2. asked by AL 87
3. 852 views
Which of the following statements are correct?(Select all correct answers.) Breaking the bonds between the solute molecules is
1. 1 answer
2. asked by Larry
3. 852 views
The gases in a mixture have the following partial pressures at the same volume and temperature: 1,013,000 Pa nitrogen, 700 mm
1. 2 answers
2. asked by tete
3. 833 views
What percentage of sodium-24 with a half life of 15.0 hr would remain after 60hours?
1. 1 answer
2. asked by Sarah
3. 816 views
Air pollution impacts us on a global level. What are the implications of global warming?
1. 2 answers
2. asked by mark
3. 811 views
90Sr is one of the harmful radionuclides resulting from nuclear fission explosions. It decays by a first-order process with a
1. 2 answers
2. asked by omar
3. 804 views
How do you know what the topic and main idea of a paragraph is?
1. 1 answer
2. asked by 3rd Grader
3. 798 views
Please correct the sentence below, adding punctuation and changing words as needed. The snow was falling fast and was so pretty
1. 5 answers
2. asked by Christopher
3. 797 views
The charges of two identical aluminum speheres are -24uC and +4.0uC. The spheres are brought together so they simultaneously
1. 1 answer
2. asked by leah
3. 783 views
An isosceles trapezoid has base angle 45 degrees and bases of length 12 and 32. Find its area.
1. 0 answers
2. asked by Anonymous
3. 776 views
Question 2 Which of the following is NOT a question to consider when analyzing visual images?If there are people in the image,
1. 1 answer
2. asked by Christopher
3. 756 views
I read the article who is holy and i need some help in writting a 200 word critique on this article. I find no fault in this
1. 2 answers
2. asked by lisa smith
3. 743 views
Which statements are FALSE about selecting a solvent for recrystallization?(Select all correct answers.) Any solvent can be used
1. 1 answer
2. asked by Maria
3. 737 views
Steri-strips cost $4.95 per box, there are 100 per box. If an orthopedic surgical group uses 200 Steri-strips a month, how much
1. 1 answer
2. asked by debbie
3. 716 views
what is the condensed structural formula for.5- ethyl-2-hexene
1. 1 answer
2. asked by yaimery
3. 701 views
A substance seems to completely fill a container, but more can be forced in. What is the subatance a solid, liquid gas or none
1. 1 answer
2. asked by rhon
3. 698 views
I'm doing a short poem on Happiness.I'm going to work on it after, but I just need a good title for it. Here is an example of a
1. 1 answer
2. asked by Sara
3. 692 views
Referring to solvent mixtures, which statements are TRUE ?(Select all correct answers.) The solvents of the solvent mixture
1. 0 answers
2. asked by Nataly
3. 691 views
Suppose a bullet of mass m = 6.96 g is fired into a ballistic pendulum whose bob has a mass of M = 0.677 kg.(a) If the bob rises
1. 0 answers
2. asked by Robert
3. 687 views
I do not know how to figure out his next shot. A basketball player has made 34 of her last 42 freethrowattempts. What
1. 3 answers
2. asked by Bart
3. 685 views
"How does the price and output behavior of a price-searcher compare with that of a price-taker? Be sure to explain your answer
1. 0 answers
2. asked by Sara
3. 681 views
I used 10mL of unknown NaCl-NaBr mixture titrate with 0.10M silver nitrate solution.10.15mL of silver nitrate solution is used.
1. 1 answer
2. asked by albee
3. 677 views
What is the probability of flipping a coin two times and getting no heads?If I flip a coin twice and get no heads wouldn't it be
1. 1 answer
2. asked by bwb
3. 672 views
Please correct the sentence below and make it an appropriate thesis statement. In this essay, I will argue that alternative
1. 4 answers
2. asked by Christopher
3. 671 views
Could you check these thanks:Directions: Chose the one that best matches. A. Mais elle a une roue de secours dans le coffre. B.
1. 2 answers
2. asked by Lisa
3. 667 views
can we use the molecular formula to predict the shape of a small molecule? Explain.
1. 1 answer
2. asked by dkfdsfdsf
3. 664 views
Suppose now that the air carts below are both moving to the right initially. The cart to the left has a mass m1 and an initial
1. 1 answer
2. asked by Carden
3. 646 views
health Identify and describe three causes for the increasing costs of health care
1. 1 answer
2. asked by kalaya
3. 641 views
Joe researcher asks for access to patient records as part of a research project. What should the health information manager do?A
1. 4 answers
2. asked by Question
3. 639 views
what is the solution of the following linear system?5x - 2y = 15 5/3x - y = 5 a)(-2,1) b) none c)(3,0) d) inifinite number if
1. 1 answer
2. asked by candy
3. 635 views
. In this problem, we will analyze the profit found for sales of a certain product. A demand equation (sometimes called a demand
1. 0 answers
2. asked by Anonymous
3. 634 views
How many mL of 0.75M HCl are needed to neutralize 20.0 grams of NaOH?
1. 1 answer
2. asked by Rachel
3. 630 views
Sara and her sister Emily both collect charms for the their charm bracelets. Together they have 42 charms. Emily has 2 more
1. 1 answer
2. asked by kim
3. 629 views
in a certain chemical reaction, two reactants undergo change to form two products why cant you determine what type of reaction
1. 1 answer
2. asked by lady t
3. 627 views
Case Study: Diet for a Patient with Chronic Hunger, Iron Deficiency Anemia, and Lead PoisoningJonathan, a
1. 5 answers
2. asked by loretta
3. 620 views
What is the 1 year operating cash flow?Sales $33,000 Depreciation $10,000 Other operating costs $17,000 Interest expense $4,000
1. 1 answer
2. asked by John B
3. 618 views
Which pair of numbers, whose sum is 35, have the largest product?
1. 1 answer
2. asked by Mia
3. 617 views
Materials, such as water, that becomes gaseous easily at room temperature are called volatiles. How does the complete lack of
1. 2 answers
2. asked by breana
3. 617 views
How many mL of 0.75M HCl are needed to neutralize 20.0 grams of NaOH?
1. 1 answer
2. asked by Rachel
3. 612 views
Question 15 Now that you have a list of citations and their accompanying bibliographic information, what question is not
1. 1 answer
2. asked by Christopher
3. 604 views
this very moment by kcjojo
1. 1 answer
2. asked by Anonymous
3. 600 views
A company requires 5,000 units of a product in a single year. It costs them $100 per order for expenses such as transportation
1. 0 answers
2. asked by carey
3. 597 views
During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed
1. 1 answer
2. asked by Robert
3. 594 views
I don't understand how to do this problem.You mix 1.00 L of 2.00 M BaCl2 with 1.00 L of 2.00 M AgNO3. What compounds remain in
1. 5 answers
2. asked by Ana
3. 584 views
In studying the chemistry and qualitative analysis of anions, why wouldn't HCl be a good acid to use to determine the solubility
1. 1 answer
2. asked by Matt
3. 581 views
The equation of nitrogen produced in a deployed air bag is: 2NaN3 + 42.7KJ--->2Na + 3N2. What amount of heat is needed to
1. 1 answer
2. asked by amanda
3. 581 views
my daughter in 2nd grade need help with her music homework. her rhythms are ta, too, four, and titi. The words are welcome,
1. 0 answers
2. asked by amy
3. 579 views
E11-9 The following stockholders’ equity accounts, arranged alphabetically, are in theledger of Marvel Corporation at December
1. 0 answers
2. asked by Anonymous
3. 578 views
what is the answer to this question? The week before a big concert, five friends, alvin, bert, chip, dennis and ethan, stood in
1. 1 answer
2. asked by ursie
3. 576 views
a person had a skin temperature of 33degrees celcuis and was in a room where the walls were at 20degrees celcuis.if the
1. 2 answers
2. asked by KABELO
3. 566 views
what is the solution of the following system of equations?2y - x = 8 y = 2x + 1 a) (1,2) b) (5,2) c) (2,1) d) (2,5) and the
1. 1 answer
2. asked by poo
3. 561 views
Which purpose does recrystallization serve?(Select all correct answers.) It is used to purify liquids. To separate unreacted
1. 0 answers
2. asked by Maria
3. 556 views

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