Wednesday
July 30, 2014

Posts by Ann


Total # Posts: 1,207

Chemistry
A solution that has an osmotic pressure greater than that of red blood cells is called?

Chemistry
What is the concentration, in w/w%, of a solution prepared from 50.0 grams NaCl and 150.0 grams of water? I think it would be 25.0%, but I'm struggling with these new concentration calculations.

college, teaching
obstacles in the first year of teaching

Chemistry
Sodium oxide, reacts with water to give NaOH. A) Write a balance equation? B)What is the pH of the solution prepared by allowing 1.55 g of Na2O to react with 500.0 ml of water? (assume there is no volume change) C) How many milliliters of 0.0100M HCL are needed to neutralize t...

Verb tense
Dinnie does pay bills online each month.

health,safety and nutrition
Why health, safety and nutrition strategies are important ti identify and practice in an early childhood education programs.

English
The packet of biscuits has passed its expiry date or The packet of biscuits has past its expiry date. Or both sentences correct?

English
There is a host of reasons... or There are a host of reasons.... Which is correct?

physics
A person places the speakers 4.0 m apart and connects a signal generator to both speakers that produces a single and consistent tone. (constant wavelength and frequency) He then walks to a point that is 2.0 m from one speaker and 2.3 m from the other. At that point he notices ...

Chemistry-Please Help!
I have these 5 chemical equations and I keep getting the same 1:1 ratio on all of them. I must be doing something wrong! KCL + NaNO3 = KNO3 + NaCl HNO3 + KOH = H2O + KNO3 H2O + SO3 = H2SO4 4Na + O2 = 2Na2O 2NO2 = 2NO + O2

Chemistry
What would be the molecular ratio of the following equation? 2NO2 = 2NO + O2

algebra
write the slope-intercept equation for the line that passes through(4,3) and has slope 5/4.

FIT
Joe Nautilus has $120,000 and wants to retire. What return must his money earn so he may receive annual benefits of $20,000 for the next 14 years?

Statistics
What type of data must you collect to conduct a t-test? Why?

Algebra
Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: C(g) = (3.5)g a) Find C(2) b) Find C(5)

Physics
Also it's not 1800, it's 1/800 so it would be: .046kg * 44 = 2.024 2.024/(1/800) It should equal = 1619.2 Check your answer but that should be it, especially if they're asking you in units of N

Physics
Also it's not 1800, it's 1/800 so it would be: .046kg * 44 = 2.024 2.024/(1/800) It should equal = 1619.2 Check your answer but that should be it, especially if they're asking you in units of N

Physics
Also it's not 1800, it's 1/800

English
With reference to an earlier question:- The liquid is to be scooped at a quarter of the depth of the container it is in. Hence the first sentence is correct? Or is there a better way of phrasing? The liquid should be scooped at a quarter depth of the container? Posted by ann o...

English
1)Please advise us on the status of our application. 2)Please advise the status of our application. Which sentence is correct?

English
The liquid is to be scooped at a quarter of the depth of the container holding it is in. Hence the first sentence is correct? Or is there a better way of phrasing?

English
The liquid should be scooped at a quarter depth. or The liquid should be scooped at a quarter depths. Which is correct?

English
"Your prompt action in providing the information by tomorrow would be appreciated." Is the above sentence correct?

English
Which sentence is correct? 1) Please provide the shelf life information on the following biscuits: - or 2) Please provide the shelf life information of the following biscuits: -

English
Is the following sentence correct? Please provide us with the requisite information on the product.

English
Please expedite in providing all necessary documents. Is this sentence grammatically correct?

AED 201
I think that is where I am confused to. It just says the first technological event in education and then the second for each time period. I have found one website that helped, im not sure if it is the correct information, but it only went up until 2000. I am still looking for ...

AED 201
I am looking for information on the use of technology in school. I need the 1st and 2nd event from 1980, 1990 and 2000. Ive been searching since yesterday. I do not want the answers, just pointed in the right direction. I guess im not searching right or something Thank you.

History
In their reporting of elections, the media tend to place cendidates and issues in the context of

Math
Explain how the digit 1 can have a different values in 111

math
which decimal has the highest number 4.1, 6.3, 0.31

Chemistry
Posted by ann on Sunday, October 17, 2010 at 4:26am. In melting point determination, why shouldn't a substance be re-melted? (i.e. why should we not re-melt a substance that has previously been melted in a melting point tube?)

Chemistry
In melting point determination, why shouldn't a substance be re-melted? (i.e. why should we not re-melt a substance that has previously been melted in a melting point tube?)

English
1) Minimize versus minimise. Which is UK English & which is US English? 2) After cleaning, all waste must be properly disposed of. Is this sentence acceptable?

Comm/155
I am trying to write a brief paragraph using five adverbs and five adjectives in describing my experience with credit and credit cards?

chemistry
A water containing 1x10^-4 mol CO2/L and having an alkalinity of 2.5x10^-4 eq/L has a pH of 6.7. The pH is to be raised to pH 8.3 with NaOH. How many moles of NaOH per liter of water are needed for this pH adjustment? (pK1=6.3 and pK2=10.3)

Chemistry
Is butyl paraben light sensitive?

computers
James was traveling for his job. The internet card provided by his company was not working and he had an important project due that day. James was in a small town about an hour away from the nearest internet kiosk, so he decided to drive around a nearby suburb to see if he cou...

accounting
general ledger entry: sold $700 of merchandise (that had cost $220) on credit to Sam's Company.

social studies
what role did geography play in the economic success of new york

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help. Your answer was no but how do I do this problem? I'm sorry, I mean <,>,or =. Thank You for your help.

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help. Your answer was no but how do I do this problem?

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ? please help.

math
In this problem the letters x and y are each one digit numbers. Compare x+y O 19? Do I put any number for x and y ?

physics
A person leans over the side of a deep well and drops a stone that falls freely. After 1.0s she hears the splash of the stone striking the water at the bottom of the well. How deep is the well?

math
julie is thinking of an even number between 12 and 29 with digits whose difference is 7? what is the number?

Axia Math 117
I am of need of HELP. I am working on the word problems for AXIA math 117 and I do not understand the first problem. I have listed the information below. I have tried many times and I have not figured this out. My assignment is due tomorrow and I am desperate for help with wor...

Nutrition, Health, and Safety for Young Children
What is a good purpose statement for discussing "why health, safety and nutrition strategies are important to identify and practice in an Early Childhood Education Program?

Math
Can someone please check this for mistakes please? y=4(x+3)-2x y=4x+3-2x y=2x+3 2x+3=y 2x=y-3 x=y/2-3 Hopefully I have rearranged the formula y=4(x+3)-2x to express x in terms of y.

algebra2
kathy bicyles 57 km/h faster than carlos. in the same time it takes carlos to bicyle 36 km. kathy can bicyle 57 km. how fast does each bicyclist travel? help please

algebra2
2 + 7 ______ xs power of 2 and x powqer of 2s

algebra2
the simlified product of this is? 10a power of 8.9r power of 4 _______ _____________ 3r power of 2 100a i dunno what to do?

algebra2
ty

algebra2
find the LCM 21z power of 7 and 63z power of 4? im not sure what im doing? help please?

math
Given the midpoint (8,14) and endpoint (-9,-1), find the other endpoint

physics
11.11....

science
how much heat does calcium oxide produce when dissolved in water?

chemistry
How much heat does calcium oxide produce when dissolved in water?

Calculus
Which vector is not collinear with vector a=[6,-4]? A: [3, -2] B: [-6, -4] C: [-6, 4] D: [-9, 6]

math
a boat crosses a river and arrives at a point on the opposite bank directly across from its starting position. The boat traveks at 4m/s and the current is 2m/s. If the river is 600 m wide in what direction must the boat steer and how long will it take to cross?

Check Calculus
What is the sum of 3 forces in equilibrium? Is it F3 = - (F1 + F2) or 0?

Check Calculus
What is the sum of 3 forces in equilibrium? Is it F3 = - (F1 + F2) or 0?

chemisty
what is the name of this substance K2Cro4

trig
please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°

trig
please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°

math
find real solution. 3+ the square root of 3x+1 = x

business
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...

business ethics
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help R...

ethics in management
I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help R...

math
how do i use the formula a=pe^rt to solve 15000. at 4.6% for 4yrs

Calculus
n(t) = 800/ (1 + 39e^-t) Where n is the number of students who have heard the rumour as a function of time, t, in days. What is the student population of the school? How long will it take for the rumour to reacglh half of the school's population? What dat was the rumour sp...

Calculus
If log base a * b = 1/x and log base b * sq.rt a = 3x^2 show that x=1/6.

Calculus
Solve for x where 12^x = (4)8^2x

Physic
A person weighs 872 N in air and has a body fat percentage of 20.7%. a. What is the overall density of this person's body? b. What is the volume of this person's body? c. Find the apparent weight of this person when completely submerged in water.

financing
A firm has a current assets of $800,000, current liabilities of $600,000. The firm uses $200,000 of its cash balance to pay off a current liabilities. Calculate the current ratio before and after this transaction.

Physics
What weight of water is required to fill a 80 gallon aquarium? The answer must be in kN

math/algebra
solve by additon method, tell whether the equation is dependent,independent, or consistent. 1. x-y=3 -6x=6y=17 2. 3/7=5/9=27 1/9 = 2/7 =7

Math
x + y = 2.20 How do I solve this?

chemistry
a 1.009g mixture of the solid salts Na2SO4 and forms an aqueous solution with the precipitation of PbSO4. The precipitate was filtered and dried and its mass was determined to be .471 g. the limiting reactant was determined to be Na2SO4. Write the molecular form of the equatio...

Chemistry
A .972g sample of a Cacl2 2H2O/K2C2O4 H2O solid salt mixture is dissolved in 150 ml of deionized water, previously adjusted to a pH that is basic . The precipitate after having been filtered and air dried has a mass of .375g. what is the percent by mass of CaCl2 2H2O

psychology paper
Hello I have to write a paper and part of the paper is asking for information I am not sure which way to go if some one can please help me with this I would appreciate it the section I am having a problem with is Explain the criticism of artificiality in the discipline of psyc...

Psychology
Hello I to write a paper and part of the paper is asking for information I am not sure which way to go if some one can please help me with this I would appreciate it the section I am having a problem with is Explain the criticism of artificiality in the discipline of psycholog...

HRM240
I have a paper due tonight be midnight is it possible to have someone write it in time?

math
What is the square inches of a 6" circle?

8th Grade Math
Draw and label a rectangle whose area is represented by the following expression; (x+1) (x+5). Then write an equivalent expression in expanded form. I have absolutly no clue how to do that. :/

the facility
003048

Math
What is the excluded value? y^2-y+5/y+4

psychology
What are the four positions of the nature of traits?

phys 2
Two capacitors are identical, except that one is filled with a dielectric ( = 4.50). The empty capacitor is connected to a 12.0 Volt battery. What must be the potential difference across the plates of the capacitor filled with a dielectric so that it stores the same amoun...

english/punctuation
I am so excited and extremely grateful whereas been given this privilege to express how God has renewed my faith.

Chemistry
Which of the following surfaces does a true monolayer always form on? A. silicon B. gold C. both D. neither Why are silicon surfaces studied in this experiment? A. Silicon is shiny like the windows in tall buildings. B. Silicon more closely represents environmentally relevant...

Physics
A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 40.0 vibrations in 30.0 s. Also, a given maximum travels 425 cm along the rope in 10.0 s. What is the wavelength?

business
What i mean is that if i union represent employees and the company and I cannot reach an agreement on any issue even though i have been willing to conced on some issue what would most likely happen in this case.

business
does the law permit the union or the federal government to impose terms and conditions substantially similar to those enjoyed by similiarly situated workers I believe it permits the Union, am i correct?

business law
So, would this be more defamation of character or invasion of privacy. The employeer also stated that he was late to work on different occasions.

business law
They said that you did a decent job for them but that you could have worked harder.

business law
If a employer gives a reference to another person by stating what you did in you previous postion, could you have a claim of defamation of character or claim of invasion of privacy or a unfair labor practice. I believe it is a defamation of character, am i correct?

business law
Would EOE"Equal Opportunity Employment" the same as Affirmative action. I believe that they are not the same and they both have a different purpose and effect. Am i correct

algebra I
for my homework I have to graph 4 equations: 1. y=1/4x^2+3x-3 2. y=-x^2+7x-2 3. y<x^2+7x+6 4. y<*-1/3x^2+4x+5/2 [<* means greater than OR equal to. I just don't know how to put the line under it] we are allowed to do them on a calculator. but since I don't hav...

science
what characteritics should a soil have to suit animals which live in the soil?why are these characterics important?hence, infer which type of soil is most suitable for soil-living aimals?

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