Monday
November 24, 2014

Posts by Sheena


Total # Posts: 51

CHEMISTRY HELP
Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee
October 12, 2014

CHEMISTRY
oh i got it thank you!
October 12, 2014

CHEMISTRY
please explain more about how to find the molality??
October 12, 2014

CHEMISTRY
THANK YOU SO MUCH!
October 12, 2014

CHEMISTRY
i've read formulas to use ro solve this problem but i dont know what delta T means. please tell me what formula to use and what delta T means thaaaank youu
October 12, 2014

CHEMISTRY
Calculate boiling point and freezing point of this solution which contains 5.85g of C6H12O6 in 255g H2O. pleasee
October 12, 2014

algebra
From a survey of 100 college students, a marketing research company found that 65 students owned ipods, 45 owned cars, and 15 owned both cars and Ipods. (a) How many students owned either a car or an ipod (but not both)? (b)How many students do not own either a car or an ipod?
August 3, 2014

Math
Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. (Enter your answers as a comma-separated list. Enter EMPTY for the empty set.) {1, 2, 8} ∩ {2, 8, 9}
July 13, 2014

Math
In a survey of a TriDelt chapter with 50 members, 23 were taking mathematics, 32 were taking English, and 9 were taking both. How many were not taking either of these subjects?
July 13, 2014

Math
An item has a 45% markup based on selling price. What is the equivalent markup percent based on the cost?
December 11, 2013

Trigonometry
A jet plane flying 6000 m above the ground passed directly above Ana. one minute later, Ana noticed that the plane's angle of elevation was 18 degrees 34 minutes. What was the horizontal distance covered by the plane?
November 2, 2013

MATH
Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824.00 and twice as many adult tickets as student tickets were sold, then how many of each were sold?
June 13, 2012

math
when we mix a 10% acid solution with a 14% acid solution, we can obtain a solution that is 24% acid
June 13, 2012

algebra
the sum of two numbers is -16 and their difference is 8, find the numbers
June 13, 2012

College Algebra
Find the sum of two numbers is 2, and their difference is 26. Find the numbers
June 13, 2012

Algebra
Ticket for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickets as student tickets
June 13, 2012

Algebra
oops, sorry my error total receipts $824
June 13, 2012

College Algebra
solve each system by substitution method x=y+3 3x-2y=4 Pls determine whether the equations are independent, dependent, or inconsistent
June 13, 2012

Chemistry
I calculated the M of NaBO.... at 6.59x10^-3 for the mass I measured. I have a chart of measurements where I used 9.98mL out of 100mL of solution that I made. I was given the equation (mass Na.../molar mass Na...)*(volume Na.../volume total solution) the balanced equation I&#...
March 17, 2012

Chemistry
I am working on a redox stoichiometry lab. I need to calculate the moles NaBO3*4H2O. Mass=1.0133g in 100mL solution In my experiment I used 9.98mL and titrated in with KMnO4. I'm really confused about how to calculate the moles. Thanks for any help!!!!
March 17, 2012

grade 9 math
2^2
October 13, 2011

trig
angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.
May 4, 2011

computer
what is the cost: performance: reliability: size: installed in numbers: of super computers, main frame, personal computers and PDA'S ?
November 3, 2010

Astrophysics
Oh, yes, yes. This is explained in my book; I just didn't remember this formula or think to apply it to this problem. Thank you so much!
July 19, 2010

Astrophysics
If an eclipsing binary system has a period of 32 days, an orbital velocity of 153km/s, and an orbit that is nearly edge-on, what is the circumference of the orbit? The radius of the orbit? The mass of the system? I can't seem to find a starting point for this problem.
July 19, 2010

Chemistry
the specific heat capacity of gold is .13 J/g°C. Calculate the specific heat capacity of gold in cal/g°C. Calculate the specific heat capacity of gold in J/mol°C. Calculate the amount of energy required in joules to heat 2.5 kg of water from 18.5°C to 55.0°...
May 31, 2010

Chemistry Help!
the specific heat capacity of gold is .13 J/g°C. Calculate the specific heat capacity of gold in cal/g°C. Calculate the specific heat capacity of gold in J/mol°C. Calculate the amount of energy required in joules to heat 2.5 kg of water from 18.5°C to 55.0°...
May 31, 2010

human service management
What are three ways human resources help support the strategic goals of human service organizations
March 5, 2010

11th grade
How many moles of nitrogen do you need to make 78 g of ammonia?
February 12, 2010

operating system
I need a breakdown of Windows, Users & Unix users.. Breakdown by year of computer virus growth... Breakdown of viruses by operating system... can you help me please???
January 29, 2010

PHYSICS- SCIENCE
1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun have been? (iii) ...
January 23, 2010

PHYSICS- SCIENCE
. Phobos is the larger and closer of Mars’s two moons. It has no atmosphere, a mean radius of 11 km, an albedo of 0.07, and an emissivity of 1.0. (i) Assuming that the radiative temperature of Phobos is 222 K and that it is spherical, what is its mean distance from the ...
January 23, 2010

Science
1. It is believed that in the Archeaneon (2.5-4 billion years ago) the sun’s radiative output was 30% less than it is today. (i) What would the temperature of the sun have been at that time? (ii) At what wavelength would the peak emission from the sun have been? (iii) ...
January 23, 2010

math (word problem)
72.85
November 6, 2009

business law
Where in the uniform commercial code does it discuss special rules for merchants because I can't find it in article 2?
November 5, 2009

Tutoring Question
I was also wondering like Anonymous if Tutorvista helps you for free when you click on the instant help. Like I know that you have to pay for having a private tutor, but say you have this one question which u really need help on, could you post it in the instant help box and ...
October 22, 2009

Education
Hi, I am looking for some good educational vidoes that I can find on Youtube. I found these really good ones of Crawford the cat. It is cartoon and it teaches you good manners such as washing your hands frequently, cleaning after your mess, etc. If you know of more, that are ...
October 17, 2009

G&C ms.sue
Wow, you and I have the same interest. I really want to go to Dubai as well. There are so many malls there and the best one is the mall of emirates, which is located on sheihk zayed road. It is the biggest one in middle east. That's good but I would add a bit more to get ...
October 16, 2009

Education
Ms. Sue I am looking for educational sony ps2 games and that are ages 5 and up, I had googled this up as well, but the only educational games which showed up were the ones from ages 2 to 5.
October 12, 2009

Education
Ms. Sue I really liked the ps2 game Alphabet circus, but it's for ages 2 to 5, and I would like one ages 5 and up, so could you please give me another link to games like alphabet circus. I would really appreciate your help, thanks.
October 12, 2009

Education
Thank you so much Ms. Sue.
October 12, 2009

Education
I want to know about educational ps2 games. I tried looking everywhere but was unable to find any. I would like to know about ps2 games which help you learn and spell. List as many as you can, and where I can get them from.
October 12, 2009

chemistry
Calculate q in J when 2.02 g of ice is cooled from -22.6°C to -73.8°C (cice = 2.087 J/g·K). Do not add units to your answer.
October 12, 2009

chemistry
Molecular size in real gases causes positive deviations from the PV/RT ratio of an ideal gas. a. True b. False
October 12, 2009

chem
Molecular size in real gases causes positive deviations from the PV/RT ratio of an ideal gas. a. True b. False
October 12, 2009

chem
An unknown gas Q requires 1.80 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the molar mass (g/mol) of Q?
October 12, 2009

Spanish Stop-motion quote
I suggest you wait for more suggestions because I am not sure if I'm correct, and neither am I so sure if sam's correct.
October 11, 2009

Spanish Stop-motion quote
sometimes free translators on the net miss out very important words. It's always best to have a good spanish/english dictionary.
October 11, 2009

Spanish Stop-motion quote
This is what i have got "Me gusta volar cosas!" "Con mucho gusto comandante.
October 11, 2009

Chemistry
Two iron bolts, one at 100. °C with a mass of 52.8g, the other at 56.0°C with a mass of 66.8g, are placed in an insulated container. Assuming the heat capacity of the container is negligible, what is the final Celsius temperature inside the container (c of iron = 0.450...
October 11, 2009

psy
Rational and Guilty: The person committing the crime was not suffering from a mental illness at the time the crime was committed and knew the difference between right and wrong and are did committ the crime that they are being accused of. Guilty but insane: The person is ...
June 9, 2009

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