Wednesday
July 23, 2014

Posts by Natasha


Total # Posts: 332

Chemistry Lab
Which of the following would NOT be a factor for a solute to dissolve in water? A. A solute separates into ions which are supported by hydration. B. Electrostatic attraction between the partially charged atoms in water molecules and the solute. C. A solute has a higher formula...

Chemistry Lab
You are given 350 mL a stock solution of 1.66E-02 M benzoic acid, MW = 122.125 g/mol. Answer the following questions. A. What is the number of moles present in the original stock solution? B. You need to dilute the benzoic acid stock solution to 1.24E-03 M. If you need 455 mL ...

Chemistry Lab
You are given 350 mL a stock solution of 1.66E-02 M benzoic acid, MW = 122.125 g/mol. Answer the following questions. A. What is the number of moles present in the original stock solution? B. You need to dilute the benzoic acid stock solution to 1.24E-03 M. If you need 455 mL ...

Chemistry Lab
How many milligrams are there in 1.57 kg?

soc 120
The correct answer for #4 is misinterprets key terms --

statistic
the mean of adult men is 172 pounds with a standard deviation of 29 pounds. ask 20 men thier weight and use excel to calculate the mean. test the hypothesis that the mean is not 172 pounds at the .10 significance level. and how many men should be sampled if you want to be 98% ...

english
how do a write a paragraph on how i plan to obtain my goal as a Doctor?

11th grade
Sodium Vapor lamps emit a characteristic yellow light . What can we deduce about sodium atoms, based on this observation?

Chemistry
Sodium Vapor lamps emit a characteristic yellow light . What can we deduce about sodium atoms, based on this observation? Please help!!

English
Supposedly? So does that mean that they could, without due cause? and the employee could do nothing about it?

English
Okay. And job rights these days would be extremely different, yes?

English
What are the job rights of Willy Loman? What are his rights, as an employee, when he got fired? Were there any rights at that time?

English
**Of Willy Loman, sorry.

English
In Arthur Miller's "Death of a Salesman" What were the job rights, or Willy Loman?

Social Studies
How can the World-System theory be applied to the events in Timor Leste since August 1999?

Elements of Psychology
I need help on these questions. My answers have the < by them 1. In a typical neuron, sheaths of fatty tissue called _______ surround the axon. A. terminals C. synapse B. dendrites D. myelin <C 2. You’ve already gathered data to measure the relationship between read...

arithmetic
james has a metal fame with an 8.32 inch perimeter. if the sides are .04 inches thick, what is the perimeter of the inside of the frame

algebra
(2x^2-3x+1)(x^2+x-2)

statistics
2. Assume that the population proportion of adults having a college degree is 0.35. A random sample of 200 adults is to be selected to test this claim. A) What is the shape, mean, and standard deviation of the sampling distribution of the sample proportion for samples of size ...

Math
(-3)-[3(-4)+7=

statistics
A confidence interval for the mean is a range ìlower < ì <ìupper where the lower bound is the smallest value of ì that we expect and the upper bound is the largest value of ì that we expect”(Doane-Seward,2007). “If we wanted a...

pure math 30
the graph y=x^3-4x^2+x+6 is stretched horizontally by a factor of 2 about hte line x=4. what is the resulting equation

physical science
find the net force produced by a 40 Newton force and a 50 Newton force in each of the following cases: Both forces act in the same direction. Both forces act in opposite directions.

Chemistry
I am about to do an extraction experiment, and needed help with a question to improve my understanding. Any help appreciated. 1. You have 150 ml of a solution of benzoic acid in water estimated to contain about 5g of the acid. The distribution coeffcient of benzoic acid in ben...

Chem again
Oh I just realized, that was a typo, I meant to divide it by the original mass of 5.0 getting 89.4%

Chem again
The solubility of Acetanilide in hot and cold water is: Temperature.........Solubility in 100ml H20 100C....................5.5g 0C........................0.53g What is the maximum recovery if 5.0g of acetanilide is recrystallized from 100mL of water? My ans: So this is what I...

6th grade
Introduction paragraph has, a few sentences summarising the main ideas of what you are going to talk about, or what is included in your essay. It could contain aims, goals, basically it is by its name, an introduction your essay.

environmental science
Mycorrhizae and Lichens

Chemistry
Thank you =)

Chemistry
I am reading through material for a recrystallization experiment, and I had a few things I wasn't sure about; - Why once filtered, should the recrystallization solution be allowed to cool slowly, undisturbed, rather than quickly? and -What makes a good solvent, i.e. what a...

Organic Chemistry
What would be the acid base reaction of: c2h30- and phenol(benzenol) C6H5OH be? Ok so this would result in the production of water, and the double bonds in phenol would open up and react, but I don't know what the end product would be??

Organic Chemistry
Draw the structure of: (E)-1,2-dibromo-3-isopropyl-2-hexene My approach: I know how to answer this question in terms of basic nomeclature but I have no idea what (E) means in this.

Organic Chemistry
ooops i just figured it. did a silly mistake

Organic Chemistry
what is the lewis structure for this: CH3OH2+ I tried drawing one but I got my formal charges wrong, and it didnt add up

Organic Chemistry
What is the lowest energy alternative resonance structure for this compound: CH3-CH-N<triple bond>N There is a negative charge on CH and a positive charge on the central N

math
a smokestack is 205 m high. from 2 points C and D on the same side of the smoke stacks base b, the angles of elevation to the top of the smokestack are 40 degrees and 36 degrees respectively. find the distance between C and D

Org. Chem SOS???
Oh i see, thanks a lot =)

Org. Chem SOS???
Sorry for re-posting this question but I feel as if it hasnt been read or something. Otherwise does no one really know the answer? I am really going crazy over it and I have only 1 try left. Please What is the lowest energy alternative resonance structure for this compound: CH...

Psychology
Basically it is asking you to think about the parts of the brain and their function. So it's asking what part of the brain if damaged would result in a personal not being being able to concentrate and retrieve information despite continuously sending signals to.

Organic Chemistry
What is the lowest energy alternative resonance structure for this compound: CH3-CH-N<triple bond>N There is a negative charge on CH and a positive charge on the central N

Organic Chemistry
What is the lowest energy alternative resonance structure for this compound: CH3-CH-N<triple bond>N There is a negative charge on CH and a positive charge on the central N

Organic Chemistry
CH3-CH-N<triple bond>N There is a negative charge on CH and a positive charge on the central N

Organic Chemistry
What is the lowest energy alternative resonance structure for this compound: -HC-N+///N / H3C Where /// is a triple bond connecting N+ and N

AP CALC
derivative of y= x^2 sin x

biology
Describe and evaluate both the origin of life theory

MGT330
How has management changed due to the increased role of globalization? Would a good leader in one country automatically be a good leader in another country? What characteristics should a leader have to make them successful globally?

MGT330
How has management changed due to the increased role of globalization? Would a good leader in one country automatically be a good leader in another country? What characteristics should a leader have to make them successful globally?

7th grade
I need and answer very soon because I ave to go to sleep.

7th grade
Almost everyone at the Bright Corporation reads a daily newspaper on a regular basis. In fact, altogether te company employs 2,940 people,of whom70% read The Daily News,45% read The Courier and 60% read The inquirer. One fourth of the employees reads The Daily News and The Cou...

pre- algebra(MATH)
express the rational expression in lowest terms ab+3a-2b-6/bc-4b+3c-12

math
A jeep is traveling in a straight line across a flat, empty dessert. On a navigational map with a unit representing 1 km, the starting point of the jeep is at (-140, -70) and its destination is at (280,50). There is a refueling depot with an emergency transmitter half way alon...

algebra
A jeep is traveling in a straight line across a flat, empty dessert. On a navigational map with a unit representing 1 km, the starting point of the jeep is at (-140, -70) and its destination is at (280,50). There is a refueling depot with an emergency transmitter half way alon...

history
The lives of slaves differ from those free in the united states greatly. Slaves had no freedom or speech, or freedom in their actions like those from the states. Also slaves were forced to work on farms, plantation etc, while normal Americans chose what jobs they did acquire. ...

Physics
What is an essential characteristic of an object in equilibrium?

Chemistry
moles = mass / molar mass convert 1.00 kg of silver into grams so 1000 grams and divide this by the molar mass of silver which you can find in your periodic table

Physics
A standard man wants to do reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the mass of the bar is given as 140 kg, what is the tension in each of his shoulders? Consider the weight of the arm and the weight of the bar. Note: Use 4...

2 masses, pulley on a frictionless incline
an object of mass m1= 311 g on an inclined surface. The angle of the inclined surface is θ = 40o with the horizontal. The object m1 is connected to a second object of mass m2 = 355 g on the adjacent horizontal surface. Further, an external force of magnitude ІFext&#...

Kinematics. Newtons Laws
A standard man does reverse curls in a gym. He holds his arms straight, using an overhand grip to hold the bar. If the mass of the bar is given as 127 kg, what is the tension in each of his shoulders? Consider the weight of the arm and the weight of the bar. Note: Use 4.9kg as...

Kinematics. Newtons Laws
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.

Physics
Two objects are in contact on a frictionless surface. A horizontal force is applied to one object as shown in the figure below. Use m1 = 1.2 g, m2 = 254 g and F = 0.7 N to find the force between the two objects.

us history
In what ways did democracy create a new political culture? How did democracy impact social change?

college
In what ways did democracy create a new political culture? How did democracy impact social change?

HIS 115
What were the negatives of the new market economy? What were the positives of the new market economy? How did the creation of a single market economy shape American values and the economy of today?

college
What were the negatives of the new market economy? What were the positives of the new market economy? How did the creation of a single market economy shape American values and the economy of today?

math
(5x)+14=14+(5x)is this associative property of addition?

managerial accounting
The expected average rate of return for a proposed investment of $500,000 in a fixed asset, with a useful life of four years, straight-line depreciation, no residual value, and an expected total net income of $240,000 for the 4 years, is A. 18% B. 48% C. 24% D. 12%

accounting
The Anderson Company has sales of $4,500,000. It also has invested assets of $2,000,000 and operating expenses of $3,600,000. The company has established a minimum rate of return of 7%. What is Anderson Company's profit margin? 18% 44.4% 20% 80%

managerial accounting
The Joyner Corporation originally budgeted for $360,000 of fixed overhead. Production was budgeted to be 12,000 units. The standard hours for production were 5 hours per unit. The variable overhead rate was $3 per hour. Actual fixed overhead was $360,000 and actual variable ov...

college
The Joyner Corporation originally budgeted for $360,000 of fixed overhead. Production was budgeted to be 12,000 units. The standard hours for production were 5 hours per unit. The variable overhead rate was $3 per hour. Actual fixed overhead was $360,000 and actual variable ov...

Math
10(10X + 11) = 10 I'm trying to slove for X but can't seem to get any number that will equal 10

college
solve for X 10(10X + 11) = 10

college
what is meant by reusability in Access 2007

alegbra
if the line is (1,-3) then will the answer be y=-5x+8

college biology-drug metabolism
You are interested in examining the metabolism of a new drug that has been developed in your company. Briefly describe how you would determine whether cytochrome P450 is involved in metabolizing the drug, and if so, which subtype is involved.

preschool
identify factors which may have influenced the validity and reability of the ovservations.thank for your help.

Algebra 2
P (-1, 2) Q (k, -4) m= -1/2 determine k so that the line through the given points will have slope m. how do you do this?

CHEMISTRY
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?

geometetry
i need the answer too

geometetry
A cow is tied to the long side of a barn 10 feet from the corner.The rope being used to tie the cow to the barn is 21 feet long .The barn measures 11 feet wide and 28 feet long, what is the total area of the space in which the cow can graze

chemistry
If 4 moles of gas are added to a container that already holds 1 mole of gas, how will the pressure change inside the container?

Critical Thinking
1. Apple polishing 2. Scare tactics 3. straw man 4. wishful thinking 5. perfectionist fallacy 6. poisoning the well 7. "Argument" from outrage 8. Inconsistency ad hominem 9. hasty generalizing 10. red herring/smokescreen 11. post hoc 12. guilt trip 13. argument from ...

chemistry
A mixture of gases at a total pressure of 95 kPa contains N2, CO2, and O2. The partial pressure of the CO2 is 24 kPa and the partial pressure of the N2 is 48 kPa. What is the partial pressure of the O2?

chemistry
A rigid container of O has a pressure of 340 kPa at a temperature of 713 K. What is the pressure at 273 K?

chemistry
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?

chemistry
Under what conditions of temperature and pressure is the behavior of real gases differ most from that of ideal gases?

chemistry
A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen at 101.4 kPa ifpHe = 82.5 kPa and pCO2 = 0.4 kPa

chemistry
If a balloon containing 3000 L of gas at 39C and 99 kPa rises to an altitude where the pressure is 45.5 kPa and the temperature is 16C, the volume of the balloon under these new conditions would be calculated using the following conversion factor ratios

chemistry
A sample of gas occupies 17 mL at -112C. What volume does the sample occupy at 70C?

science
Folic acid, iron and calcium

chemistry
Consider an iron cube and an aluminum cube. If the two cubes were at the same temperature, how would the average kinetic energy of the particles in iron compare with the average kinetic energy of the particles in aluminum?

chemistry
is the answer 151.9

chemistry
i really hate chemistry it hurts my brain i have problems with all the techinical thingys so im guessing again yaay me

chemistry
If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced? 3NaHCO3(aq) + C6H8O7(aq) ƒ{ƒ®3CO2(g) + 3H2O(s) +Na3C6H5O7(aq)

chemistry
hahaha i wish i new how to do all that stuff im not very smart but ill try it ill prolly get it wrong anyway but thank you very much

chemistry
which of the following would be the limited reagent in the reaction shown below there are 50 molecules of O2 and 50 molecules of H2

chemistry
thank you ever so much

chemistry
The equation Mg(s) 2HCl(aq)---MgCl2 (aq) H2(g) is an example of which type of reaction?

chemistry
thank you very very very much

chemistry
what is the balanced equation for the reaction that takes place between bromine and sodium iodide

math
thats imposible your girlfriend should go back to school

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