Describe how you could seperate the components of a mixture of PbCl2 and NaSO4 and recover the two substances.
Jane Smith currently holds tax-exempt bonds of Good Samaritan Healthcare that pay 7 percent interest. She is in the 49 percent tax bracket. Her broker wants her to buy some Beverly Enterprises taxable bonds that will be issued next week. With all else the same, what rate must ...
What payment should be made on an invoice in the amount of $3,400 dated August 7 if the terms of sale are 3/15, 2/30, n/45 and the bill is paid on August 19
An invoice is dated August 29 with terms of 4/15 EOM. What is the discount date?
What is the net price factor for trade discounts of 25/15/10?
Maximize P= 8x1+12x2 Subject to 2x1+4x2<=24 3x1+3x2<=21 4x1+2x2<=20 X1, x2 => 0 Using the SIMPLEX method. Clearly state the row operations used. For each tableau used, complete the leftmost column by providing the appropriate basic variables.
Kari Popper advocates, as a more efficient way to examine a scientific hypothesis, which of the following? A) Gather as much data as possible supporting the hypothesis. B) Fake the data C) Try to show the hypothesis is false. D) Meditate on what the hypothesis really means. Wh...
Operations Management 10th edition
The three station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2. Station 1-Machine A-Capacity: 20 units/hr Station 2-Capacity: 5 units/ Station 3-Capacity: 12 uni...
A student has 100.0 mL of an unknown solution of Vitamin C. She removes 1.00 mL of this solution, dilutes it to 50.0 mL, and titrates this second solution with an iodine solution that is 8.5 × 10-4 M. 6.60 mL of iodine solution is required to reach the endpoint. 1. How m...
For what values of x does the graph of f(x)=x+2sinx have a horizontal tangent?
A 1-ounce serving of Cheetos has 2.90 ×102 mg of sodium. What is this mass equivalent to in units of grams?
who are the beneficiaries in bail as I am in total misunderstanding of this question
I need a poem that contains at least six of the poetic devices listed below: simile metaphor personification onomatopoeia alliteration rhyme rhythm rhyme scheme repetition I need this poem before 7 pm tonight, because my assignment is due tomorrow.
I am hoping you can direct me in this by today, since my assignment is due tomorrow. Thanks for all of your help!!
I need to find one.
I need a poem that contains at least six of the poetic devices listed below: simile metaphor personification onomatopoeia alliteration rhyme rhythm rhyme scheme repetition
A company employs 10 people and plans to select a group of 4 of these employees to receive advanced training. How many ways can the group of four employees be selected? I thought this would be rather simple and I am completely stuck.. Any help with a formula would be much appr...
-Observations of neutrinos coming from the Sun -Measurements of the Suns total energy output into space
Spanish-7th grade-Please check
Thank you-I see where I made the mistake-
Spanish-7th grade-Please check
I use spanishtypeit to do accents so I just said after phrase where I would have put the accent mark-thank you for checking 1.¿Cuál es tu deporte favorito? Mi deporte favorito es al golf. 2..¿Te gusta navegar en el internet? Si, me gusta navegar en el inte...
Can someone help me explain how factoring is used to solve quadratic equations? I can't find an explaination anywhere.
How can my 3rd grader make a 3D ear using any material? All things accepted except buying a kit from the store.
What is the impact of Europe's geography on European History?
What are the advantages and disadvantages of Europe's geography?
Could you please explain what makes carbon so special and how its different formations affects its properties. I know its versatile but I don't get the rest. Thank you
I posted this response under your answer but I thought I would repeat it here just in case you didn't look back at the other one. I really appreciate you helping. When you go to science geek, you have to type in Shockwave/Titration to get the experiment. Now, according to ...
Thanks so much-I really appreciate it
The web site for sciencegeek -you need to type in Shockwave/Titration after sceiencegeek So when I take the volume of base times the moles of base and divided by volume of acid, that gives me the [H+] of the acid, correct?
My teacher has us doing a virtual Titration lab on sciencegeek site but never demonstrated a Titration Lab so I really don't undestand it. We have to identify five unknown acids according to how much [H+} of acid is in each solution. We had the choice of adding NAOH in amo...
C2H4O2 + KOH--> I'm not quite sure how you balance the equation?
25.00 mL of an acetic acid solution requires 23.86mL of a 0.1550M potassium hydroxide solution to reach the end point. What is the molarity of the acetic acid solution? (Hint: write the chemical reaction, and remember stoichiometry)
Thank you so much!!
why are the equivalence point and the end point different in a titration?
Mirks labs is a British pharmaceutical company that currently enjoys a patent monopoly in Europe, Canada and the United States, on Zatab (pronounced zay-tab), an allergy medication. The global demand for Zatab is Qd = 15.0-0.2P Where Qd is annual quantity demanded (in millions...
I cannot figure this out I keep getting the order pair(1.24,-3.44), but it does not work when I check. Can you help me? 5x+5y=-11 7x-3y=19 The other oneI needed to solve is this Question: 4y+3y<-35 I got -5>-35...is that right?
If you sent out 5000 census to households and 3700 answered would my percenatge be 1.35%. please tell me if i answered this corrrectly I took the 5000 and divided it with the 3700 and I recieved the answer of 1.35% Please help thanks Shelley.
I turn polar bears white And I will make you cry. I make guys have to pee And girls comb their hair. I make celebrities look stupid And normal people look like celebrities. I turn pancakes brown And make your champane bubble. If you sqeeze me, I'll pop. If you look at me, ...
How long were the Americans able to hold the Alamo?
What kinds of unwanted reactions might you get from readers of your messages? What steps would you take to ensure that the purpose of your message (whether informative, negative, or persuasive) is conveyed to your readers? As asked and answered previously: http://www.jiskha.co...
Determine the volume of oxygen that is needed at STP to completely react with 5.63 g of potassium. 4K + O2 yields 2H2O I don't buy the equation. If K is reacting with oxygen, then the equation is 4K + O2 ==> 2K2O Actually, I think it forms K2O2. Do you have any informat...
Hello! I have a problem on volumes but I am having trouble visualizing the object. y=ln(x), y=1, y=2, x=0, about the y-axis For the graph, I graphed y=ln(x), then I have from 1 to 2. Is this one with a washer where I have integral fom 1 to 2 of pi*ln(x)^2 - pi* something? I...
We're doing areas by integrals now, with 2 eqns. I have a few questions. 1. Sketch the region in the xy-plane defined by the inequalities x-2(y^2)> 0 and 1-x-abs(y)>0. and find its area. Would it be best to solve for x, then graph it as x= something? Then find the in...
in the equation w= fd it is assumed that the force varies and is exerted in the direction of displacement... true or false? Yes. Force is measured in the direction of displacement.
Calculus - Integration
Hello! I really don't think I am understanding my calc hw. Please help me fix my errors. Thank you! 1. integral from 0 to pi/4 of (tanx^2)(secx^4)dx It says u = tan x to substitute So if I use u = tan x, then my du = secx^2 then I have integral of (u^2) then (1/3)u^3.....t...
Hello, I have some calculus homework that I can't seem to get started..at least not on the right track? I have 3 questions 1. integral of [(p^5)*(lnp)dp] I'm using the uv-integral v du formula So first, I'm finding u and I think it's lnp.......so du is 1/p Then...
Hello Everyone, I need help with Calc II. 1. Integral from 0 to 1 of (sin(3*pi*t))dt For this one, I got -1/3pi cos (9 pi^2) + 1/3pi 2. indefinite integral of sinxcos(cosx)dx I got sin(cosx) + C 3. Indefinite integral of x over (root (1-x^4))dx I don't know how to solve th...