# Posts by audrey

Total # Posts: 374

**chemistry**

How many grams of MgF2 will dissolve in 150. mL of 0.100 M NaF solution? Ksp for MgF2 = 6.4 x 10-9

**chemistry**

Calculate the ionization constant, Ka, of phenol (HC6H5O), a weak acid, if a 0.25 M solution of it has a pH of 5.24.

**chemistry**

The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)

**chemistry**

What is the value of [OH-] in a 0.015 M CH3COOH solution? Ka = 1.8 x 10-5 I started by writing the equation: CH3COOH + H2O <---> H3O+ + CH3COO- Ka= [H3O+][CH3COO-]/[CH3COOH]= 1.8 E-5 ... Now what? I don't understand where OH relates to this ...

**chemistry**

If solid AgNO3 is slowly added to a solution that is .05 M in NaI and .12 M in NaCl, what is the concentration of I- when AgCl just begins the precipitate? Ksp for AgCl= 1.8 x 10^-10 Ksp for AgI= 1.5 x 10^-16

**chemistry**

If 100 mL of .03 M HCL solution is added to 100 mL of buffer solution which is .1 M in NH3, and .1 M in NH4Cl, what will be the pH of the new solution?

**chemistry**

what is the [H3O+] of a solution that is .01 M in HOCl and .03 M in NaOCl?

**chemistry**

A sample of only solid ammonium chloride was heated in a 1 L container at 500 C. At equilibrium, the pressure of NH3 (g) was found to be 1.75 atm. what is the equilibrium constant, Kc, for the decomposition at this temperature? R= .08206 L atm/K Mol NH4CL (s) <---> NH3(g...

**chemistry**

1.00 mol of A and 2.00 mol of B are placed in a 5 Liter container. after equilibrium has been established, .50 mol of D is present in the container. What is the equilibrium constant, Kc? A + 2B <---> 2C + D

**chemistry**

How many grams of potassium formate, KHCOO, must be added to 500 mL of a .07 M solution of HCOOH to produce a buffer solution with a pH of 3.50? given: Ka of HCOOH=1.8 x 10^-4

**math**

IT IS OBVIOUSLY 10

**Physics**

1750 minutes

**Math**

Oh, ok thanks. I understand it now.

**Math**

Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 degrees)

**statistics**

The heights of a large population of students have a mean of 60" with a standard deviation of 3". What is the mean of the resulting distribution of sample means for n =16?

**Chemistry**

When in a solid form, NaCl (salt) is a neutral compound. When dissolved in water the ions dissociate (break apart) to form Na+ and Cl-. How does this explain why salt can conduct electricity when dissolved but not in solid form? _______________________________________________

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...

**geometry**

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...

**Marketing**

I need an idea for a future product or service to market for this class project, any ideas? Thank you in advance!

**Marketing**

I believe people are already doing this, how about a product idea. Something tha can be useful to people. Nothing too fancy please. Thanks!

**Marketing**

I need an idea for a future product or service to market for this class project, any ideas? Thank you in advance!

**Communication and Gender Studies**

How can children tell if “Big Bird” from Sesame Street is a boy or a girl bird and what gendered features does Big Bird use in his/her behavior, especially speech patterns and style?

**Physics - Inertial frame of reference**

= =

**Grammar**

Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used.

**Communication and Gender Studies**

Why is it that the most effective way to humiliate a man is to make him look or act like a woman, or accuse him of looking or acting like a woman?! Does the reverse hold true? Would it be demeaning for a woman to act as a man?

**Communication and Gender Studies**

List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the song convey considering the relationship to gender and family?

**Communication and Gender Studies**

List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the song convey considering the relationship to gender and family?

**Communication and Gender Studies**

What are some good specific gender communication research questions? Any ideas for topics I can write about?

**Communication and Gender Studies**

How does the language we use, including the actual words that we have to name and describe things build our stereotypes?

**Communication and Gender Studies**

What are some male stereotypes and the role language had in shaping these stereotypes?

**Communication and Gender Studies**

Thanks for your help!

**Communication and Gender Studies**

These sources seem a bit outdated to me. What about some more recent material?

**Communication and Gender Studies**

In modern America, how does society define 'masculine' and 'feminine'? Do these characterizations appear restrictive? If so, how? If not, why not?

**spanish**

Mi madrastra

**Math**

how do I write a rule for this function? x: -4, 0, 2, 4 f(x): 4, 6, 7, 8

**another physics problem that i dont understnad..**

uhm where did you get 57.5? and what is M & g????

**history**

how did the u.s.involvement in vietnam in the 1950's impact the political climate

**Communication Language Studies**

Thanks Writeacher!

**Communication Language Studies**

Supply rhyme (Given a word "fish", offering "dish") Totally confused, may be it is just me, but I am not understanding what is asked for here? A rhyme? If so, referring to those words? If so, I am stil lost Please help. Thanks!

**Communication Language Studies**

Spit and image, or spitten image; could these be malapropisms for Spitting image?

**Communication Language Studies**

This is what I thought those meant! Now spitting image is going to make me think even more! Thanks for the help!

**Communication Language Studies**

I need to figure out the original words/phrases from the following malapropisms: Any ideas? Thanks! For all intensive purposes A blessing in the skies Spitting image

**Physics**

how do you convert pC to Coulombs?????

**Corporate Communications**

Thanks for your input!

**Corporate Communications**

I don't think there are any, but I was going to use this as an example from the past, and compare it to today where they say it is not good to smoke, yet they continue to promote it to people. Any thoughts?

**Corporate Communications**

What makes this site a good example? What about tobacco companies? Would this be a good example of unethical business communication to the public when they all said that ciggerates aren't addictive and dangerous, but now agree with the consensus of health agencies and ...

**Corporate Communications**

A writer may be somewhat unethical in his or her approach while using business oriented communications if they deliberately use incorrect or inaccurate information on a website or in a media kit. I need a real life example of this. Anyone have any ideas? Thanks!

**Mass Communication Studies**

Please provide at least one example of an appealing news lead from either a corporation or an organizations news rooms. Tell why the lead is appealing.

**Communication Language Studies**

Thanks for offering your point of view!

**Communication Language Studies**

I am talking about things like this: How often have you heard football and basketball teams and boxers say, ''It's going to be a war'' when it's just a game or a fight? OR an athlete described as a ''warrior'' when that athlete is merely...

**Communication Language Studies**

Have the use of war metaphors gone too far? More specifically, does it matter? that is, do these metaphors really influence how people think and act about movies, sports, politics and "real" wars? I would appreciate any feedback! Thanks!

**Science**

When the Sun is directly over the equator, we experience either _ or _ ? I'm not getting this. Do they mean what two seasons?

**statistics**

n=97,x=46;98% confidence

**government**

true or false the new jersey plan required that each state receive the same number of seats in the federal legislature

**Mass Communication Studies**

Are the people at Fox News so good at what they do that they are destined to permanently damage American journalism?

**Communication Studies**

Consider the issue and implications of intentional news media bias. Why are large segments of the American news media audience either unable or unwilling to be better critical media consumers?

**Media Law**

No, but this is what happend, correct?

**Media Law**

What about the limitations put on the first amendment by the Patriot Act of 2001?

**Media Law**

In the aftermath of the 9/11/2001 terrorist attacks on America, and the resulting War on Terrorism by the United States, what is the reasonable and legal limitations on the First Amendment?

**Mass Communication Studies**

I think sadly you are correct, so I guess we got to accept what it is.

**Mass Communication Studies**

I agree, now where would you say the trend is leading in the near to moderate term?

**Mass Communication Studies**

SEXUAL CONTENT IN ADVERTISING AND MASS MEDIA PROGRAMMING Comment and discuss about this continued trend in the "liberalization" of media content despite the last few decades of conservative "family values" political movements and organizations - and their ...

**math**

ther are 33 students in the band. there are 6 more fifthgrade students than thirdgrade students. there are an equal number of third and fourthgrade students.how many thirdgrade students are in the band?

**Business Communication Studies**

Is instant messaging replacing many instances of e-mail for the same reasons that e-mail replaced many instances of printed memos and letters? Explain your answer.

**Pre-Algebra**

14?

**Algebra**

Thanks for the explanation!

**Algebra**

4? So the answer would be D? D. x = log_6 1296 This was my second guess but I wasn't sure so log_6 1296 would work?

**Algebra**

I would say B because 1296 = log 6^4 Is this correct?

**Algebra**

I know that x = 4 but the question asks to convert Convert 6^x = 1296 to a logarithmic equation. Here are my choices: A. 6 = log_x 1296 B. 1296 = log_6 x C. x = log_1296^6 D. x = log_6 1296 the line stands for the number or x being below the g in log, and the ^ stands for the ...

**Algebra**

Convert 6^x = 1296 to a logarithmic equation

**Algebra**

I must have a twin! lol...Hey can you tell me if this is correct? (a) Describe in words how the graph of f can be obtained from the graph of y = e^x. The graph of f can be obtained from the graph of y = e^x by off setting the graph by one. (b) What is the domain of f? x= {x...

**Algebra**

Let f(x) = e^x – 2 + 3 a. Describe in words how the graph of f can be obtained from the graph of y = e^x. b. What is the domain of f? c. What is the range of f? d. What is the y-intercept? State the approximation to 2 decimal places (i.e., the nearest hundredth).

**Algebra**

Thanks for pointing that out!

**Algebra**

Let y = f(x) y = (x + 3)/ (2x - 5) Switch x and y. x = (y + 3)/ (2y - 5) Multiply both sides by (2y - 5). 2xy - 5x = y + 3 Subtract 3 from both sides. 2xy - 5x - 3 = y Subtract 2xy from both sides. -5x - 3 = -2xy + y Factor the right side. -5x - 3 = y (-2x + 1) Divide both ...

**Algebra**

Which would be the inverse of this: Let f(x)=(x+3)(2x-5) f^ (-1) x = (5x - 3)/ (2x + 1) f^ (-1) x = (5x + 3)/ (2x - 1)

**Algebra**

Totally confused and have 5 more problems like this. Can someone explain each step for these questions? Thanks! Let f(x) = e^x–2 + 3. (a) Describe in words how the graph of f can be obtained from the graph of y = e^x. (b) What is the domain of f? (c) What is the range of ...

**Algebra**

Yes here they are (a) Describe in words how the graph of f can be obtained from the graph of y = e^x. (b) What is the domain of f? (c) What is the range of f? (d) What is the y-intercept? State the approximation to 2 decimal places (i.e., the nearest hundredth). (e) What is ...

**Algebra**

Totally confused! Got 5 more of these to do and need some guidence please. Let f(x) = e^x–2 + 3. (a) Describe in words how the graph of f can be obtained from the graph of y = e^x (b) What is the domain of f? (c) What is the range of f? (d) What is the y-intercept? State ...

**Algebra**

How would I calcualte these in a calculator to find the Logarithm of these abd round to four decimal places? log 8 1og 93,100 log 0.082

**Algebra**

Not too good with math, actually i am no good at it.

**Algebra**

I wasn't sure but it is A then?

**Algebra**

Find all of the zeros of the polynomial function and state the multiplicity of each. f (x) = (x^2 – 16)^2 A. – 4 with multiplicity 2 and 4 with multiplicity 2 B. – 4i with multiplicity 2 and 4i with multiplicity 2 C. 4 with multiplicity 2 D. 4 with multiplicity ...

**Algebra**

Thanks I chose B 10.4 Million. I am confident that this is the correct answer. Am I correct?

**Algebra**

The function w(x) = – 0.01x^2 + 0.27x + 8.60 can be used to estimate the number of selfemployed workers in the U.S., in millions, x years after 1980. How many self-employed workers were there in the year 1995? A. 9.8 million B. 10.4 million C. 11.15 million D. 14.9 ...

**Algebra**

So based on the explanation you provide the answer would be??? what i have below? B. Upward to the left and downward to the right ??

**Algebra**

Which of the following describes the end behavior of the graph of the function f(x) = –2x^5 – x^3 + x – 5? A. Downward to the left and upward to the right B. Upward to the left and downward to the right C. Downward to the left and downward to the right D. Upward...

**Algebra**

So based on that the answer would be B. Upward to the left and downward to the right ??

**Algebra**

Which of the following describes the end behavior of the graph of the function f(x) = –2x^5 – x^3 + x – 5? A. Downward to the left and upward to the right B. Upward to the left and downward to the right C. Downward to the left and downward to the right D. Upward...

**Communication Theory**

Thanks for all your help!

**Communication Theory**

So he could not say his tests were vaild unless others could verify the results?

**Communication Theory**

The same tests under different conditions? Or using different subjects? I am lost on this one

**Communication Theory**

Further testing. But if he did the same test over and over, he concluded that others would get the same result. So could it be that others results might vary?

**Communication Theory**

Can he not say that there isn't a connection between the two variables?

**Communication Theory**

I would say that Professor Nostradamus would not be able to say that his model or theoretical simplified version representation of the real world is an explanatory device, although it can be used to play an important suggestive role in the formulation of his theory. Any thoughts?

**Communication Theory**

Professor Nostradamus conducted an empirical or observed communications study in his laboratory where he convincingly found a connection between two variables. The link concluded that Variable “X” always increased when the subject was exposed to Variable “Y”...

**Communication Studies**

Yes these are great! Thanks!

**Communication Studies**

I was referring to the Above the influence campaign. Just the commercials in general. I was going to reference the site that promotes "Above The Influence"

**Communication Studies**

Would the "above the influence" campagin against drugs be considered including enthymemes in their commericals? Could this be a possible example of a social issue today?

**Communication Studies**

I guess these would work, but how would I identify the enthymeme? Who could I use as an example that used an enthymeme in their speech?

**Communication Studies**

Yes these are good examples, and I found this site, but I need an issue current to 2009. Any ideas? Thanks!