Saturday

April 19, 2014

April 19, 2014

Total # Posts: 455

**economics 212**

B. automobile and bicycles are because if your gas goes up in price you are more likely to use your bike. The other three pairs are used together, so they are compliments.

**CHemistry**

Calculate the pH of a .25 M ammonium acetate (CH3COONH4) soluton. I thought u just did -log(.25) but it keeps saying that i have the wrong answer.

**chemistry**

What is the original molarity of an aqueous solution of ammonia (NH3) whose pH is 11.10 at 25 degrees C? (Kb for NH3=1.8 x 10^-5)

**Chemistry**

An aqueous solution of an unknown, monobasic weak base has an initial molarity of .176 M and a final[OH-] of .0000158 M. What is the Kb of the unknown base?

**Chemistry**

What is the original molarity of a solution of a weak acid whose Ka=3.5 x 10^-5 and whose pH is 5.28 at 25 degrees C?

**Chemistry**

Calculate the pH of an aqueous solution at 25 degress C that is .41 M in phenol (C6H5OH). Ka for phenol=1.3 x 10^-10.

**home economics**

What is the "current macroeconomics situation"?

**Chemistry**

A mole of methane reacts with 64g of oxygen at 1 atm, 425 K. There are two ways in which methane can react with oxygen. It can either form water vapor and carbon dioxide or water vapor and carbon monoxide. After reaction the final gas density is 0.7282 g/L. What is the fractio...

**math**

how do i solve this 1/6 +4(2/5-7/10)=

**chemistry**

The quantum numbers: n = 1, l = 0 and ml = 0 ; can occur together to specify an orbital

**chemistry**

For n = 2, one of the values of l is 0

**ochem**

when the concentration of CHBr3 and NaOH are both .145, the rate of the reaction is .0040 M/s. What is the rate of the eaction if the concentration of CHBr3 is doubled?if the conc. is halved?if the two conc. are both increased by a factor of five? CH3Br+NaOH-->CH3OH+NaBr

**ochem**

when the concentration of CHBr3 and NaOH are both .145, the rate of the reaction is .0040 M/s. What is the rate of the eaction if the concentration of CHBr3 is doubled?if the conc. is halved?if the two conc. are both increased by a factor of five? CH3Br+NaOH-->CH3OH+NaBr

**ochem**

thank you so much

**physics**

A light spring with force constant 3.00 N/m is compressed by 6.00 cm as it is held between a 0.350 kg block on the left and a 0.700 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them apart. The blocks are ...

**10th grade**

why does Henry believe that compromise with the British is not a workable solution?

**Education**

thank you! that makes sense!

**Education**

what is the difference between terminating a teacher and nonrenewing a teacher's contract

**physics**

A car is traveling at 45.0 mi/h on a horizontal highway. (a) If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop? ____ m (b) What is the stopping distance when the surface is dry and &mic...

**Chemistry**

If 10.0g of Pb at 25.0oC absorbs 1.00kJ of heat, what is it's final temperature?

**Biology/DNA**

When doing a DNA extraction, what advantages does a TE buffer provide to DNA that water cannot?

**physics**

An athlete throws a basketball upward from the ground, giving it speed 10.8 m/s at an angle of 64.0° above the horizontal. (a) What is the acceleration of the basketball at the highest point in its trajectory? (b) On its way down, the basketball hits the rim of the basket,...

**physics**

9.8 gravity

**physics**

Heather in her Corvette accelerates at the rate of (3.40ihat- 2.00jhat) m/s2, while Jill in her Jaguar accelerates at (1.00ihat + 3.40jhat) m/s2. They both start from rest at the origin of an xy coordinate system. Determine the following after 5.50 s. (a) What is Heather's...

**Chemistry**

A solution contains .370 mol of isopropanol (C3H7OH) dissolved in 1.700 mol of water. A) What is the mole fraction of isopropanol? B) What is the mass percent of isopropanol? C)The molarity of isopropanol?

**physics**

a cannon fires at a castle. the walls are 9m high. if the cannon is pointed at an angle of 60 degrees and has a muzzle velocity of 35m/s will the cannon balls go over the wall or hit the wall?

**physics**

a golf ball is struck at a 45 degree angle and flies off at 28m/s. what is the range? using the SOH CAH TOH method and the range formula.

**physics**

As some molten metal splashes, one droplet flies off to the east with initial speed vi at angle θi above the horizontal, and another droplet flies off to the west with the same speed at the same angle above the horizontal, as inthe figure. In terms of vi and θi, find...

**math**

What is the cube root of x to the 7th power?

**Chemistry**

what is the answer??

**library media center**

On EBSCO .NOVELIST PLUS : IN Ultramarathon MAN ,who is REBECCA Sigmon ? That how is the question posted.Thank you for your help.

**novelist plus/library media center**

Im ultramarathon Man,who is Rebecca Sigmon?

**english **

How many categories are listed under Graphic Novels? can you help me please?

**english**

In ultramarathon man, who is Rebecca Sigmon? can you help me ?

**Math**

The House of Representatives has 435 members. If a committee has a prime number of members, and that number is a factor of 435, then how many members can be on the committee?

**Chem/DNA**

Convert 10mg/mL into micrograms/microliters

**Us History**

hi ms.sue i have a question that i need help .thanks for all the help that you had given me =) i really appreciate it. so i need help in this ,i dont undesrtand it . what would be the probable result of the national government sending military force against the state?

**Us History **

what are the three clauses of the fourteenth amendment that articulate how people are to be treated by the united states government ?who shall be entitled to the various provisions ? i read something online but i dont understand anything

**calculus**

Wow thank you guys all so much. I'm dreading a whole semester of calculus. (stats was so much easier) Thanks especially for explaining everything, so now I understand it.

**calculus**

Alright. One last question. So I'm wondering if my online homework answer is wrong, because I have x and I've plugged x back into the y = (-1/5)x + (23/10) and I've solved for y. y = 3.72 Now please tell me if I'm just making a fool of myself again and am incor...

**calculus**

Okay. My bad. I'm sorry all, I apparently can't do basic math. Thank you everyone for helping me. I really appreciated it.

**calculus**

I've also just tried: -1/5 = 2x + 14 x = -.568 and plugged that into the 'parallel' equation to solve for y. y= 2.4136 but that still didn't work out.

**calculus**

I'm sorry. For the life of me, I just can't figure out this problem. Okay, so if the slope can't be an equation, can i solve for x by setting y' equal to zero? or do you mean 2x + 14 = (-1/5) x + (23/10) I tried both ways I just listed, and they turned out wron...

**calculus**

Yes. Sorry. I did get it up to the derivative of y' = 2x + 14 by using the f'(x) = [f(x+h) - f(x)] / h formula. and did simplify the other equation into the slope-intercept form. but do I just plug the derivative into the 'slope-intercept' equation? because isn...

**calculus**

Find the point on the curve y=1 x2+14 x such that the tangent line to the curve is parallel to 2 x + 10 y = 23

**Calabasas HS**

Not 100% sure if this is right, but here's what I think it is. M = mol/L .568 = mol/.0462 L = .0262416 mol 1.396 = mol/.0805 L = .112378 mol (.0262416 mol + .112378 mol) / (.0462 L + .0805 L) = M M = 1.0094077348

**Chemistry/physics**

Calculate the final temp. of 100g of Ag at 40 C is immersed in 60.0g of water at 10.0 C. SH of Ag is 0.065 cal/g/C SH of H2O is 4.184 J/g/C I can't figure out how to put delta T in the equation when I haven't found it yet :-\

**Chemistry**

The Specific Gravity of kerosene is 0.786. What is the volume occupied by 7.75kg of kerosene? Is it 7.75/0.786?

**Chemistry**

The Specific Gravity of kerosene is 0.786. What is the volume occupied by 7.75kg of kerosene? Is it 7.75/0.786?

**Chemistry**

so it's 7.75/0.786?

**Chemistry**

The Specific Gravity of kerosene is 0.786/ What is the volume occupied by 7.75kg of kerosene?

**college**

Caculate percent error of 10.92 and 10.43

**3rd grade**

i was given a spelling words. than it say 'put the spelling words in a collage' what that mean pls help

**Geometry**

An equation using the numbers 2,4,6 and 8 to get the answer to be nine. You may use multiplication, division, subtraction, addition, and parenthesis. im so stumped.

**8th grade**

robert has a piece of twine 3/4 yards long. he needs a piece of twine that is 2/3 of this length. how long of a piee of twine does robert need?

**Physics**

Given a velocity of 4m/s[E] and a second velocity of magnitude 6m/s (this is all that is given) Find the maximum and minimum values for the final velocity.

**english/8**

Thank you.But I didn't use the word ideas on any of these definition

**english/8**

so for fourth one the answer is voice am I right

**english/8**

and I didn't use the word (ideas) on any of the definition

**english/8**

please Ms Sue tell me what is the answer

**english/8**

I dont know because I dont have the definitions do you have anything I can look on the computer

**english/8**

which one please help me

**english/8**

So you mean all of them are write and for the first I choose organization. thank you

**english/8**

Writing terms. Fill in the blanks. 1-final 9-topic 2-prewiting 10-introduction 3-idea 11-homonyms 4-conclusion 12-transition 5-voice 13-rough drapht 6-conventions 14-antonyms 7-persuasive 15-synonyms 8-organization -the( )writing trait judges your ability to divide your essay ...

**english**

how about the first one I dont know the answer

**english**

Writing terms. Fill in the blanks. 1-final 9-topic 2-prewiting 10-introduction 3-idea 11-homonyms 4-conclusion 12-transition 5-voice 13-rough drapht 6-conventions 14-antonyms 7-persuasive 15-synonyms 8-organization -the( )writing trait judges your ability to divide your essay ...

**English**

Thank You

**English**

Can you please proofread this for grammar and spelling. If there is anything that needs to be changed please let me know. I was denied financial aid for college because they said that my dad made to much money but my dad has been unemployed for the last year. So this is a brie...

**health/8grader**

What are some characteristics of teens who use alcohol and/ or drugs? Can you help me answer this question ? thank you

**geography / 8 grade**

what two distinct social groups setteld argentina? ani idea?

**geography**

Where areas are heavily populated around the world and why? can you help me please? thank you

**geography / 8 grade**

Recentely, Russian troops fought which rebellions ethnic group ? The soviet Union . correct?

**geography / 8 grade**

Where do most of the people in the countries of southasia live? village. correct? thanks..

**geography**

thank you

**geography**

Where does lake Tanganyika lie? The Eastern border of-----. Democratic Republic of the congo. is my answer right?

**geography**

Where does lake Tanganyika lie? The Eastern border of-----.Tanzania. is my answer right?

**geography**

Where does one of the hottest and driest areasof africa run along? I am not sure is it atacama desert

**geography**

What island country of southern africa has plants and wildlife found in no other country? Madacascar . correct?

**geogrraphy**

what is the second most highly populated country in north Africa? Algeria Correct?

**geography / 8 grade**

What two major political groups make up the caribbean countries? please help .thanks

**exploration**

What untaped wealth does Nicaragua have? Can you help me answer this question please? yhank you

**exploration**

I need one reason why the people of Panama fought for control of the Panama Canal. thank you

**Health**

What is the name of national surgeon general?

**poem**

Do we have to start a limerick poem with There was ........,or I can started with one day I ....... thank you

**math**

A tree casts a shadow 18 m long. At the same time, the shadow cast by a 42-cm tall statue is 64 cm long. Find the height of the tree.

**math**

write the value of the 7 in each number: 127 473

**geometry**

an isosceles trapeziod has legs that measure 24 units each. If the perimeter of the trapezoid is 150 units, what is the legth of its median?

**social studies**

An early board game of ancient Egypt in which players moved their counters around the squares, please answer before 9:00 am (school starts) Luv Ya Bunches -Nat

**vocabulary**

glue:stick::thorns:

**Biology**

18. D 19. B 24. C 29. A All of these are to the best of my knowledge, but I am pretty sure they are correct. Hope this helps!!

**World History**

Both Stalin in the Soviet Union and Hitler in Germany instituted ruthless campaigns against supposed enemies of the state. Why do you think dictators need to find scapegoats for their nation's ills?

**college**

Smokey the Bear celebrated his 65th birthday this year. Why has the message of the forest service that “only you can prevent forest fires” changed in recent years to allow more fires?

**Chemistry **

what are the 6 type of energy?

**Chemistry**

For the reaction, 2SO2(g) + O2(g) ¨ 2SO3(g) + heat, at equilibrium, what will be the effect on the net amount of SO3 present if the temperature of the container is increased? A) The concentration of SO3 decreases. B) The concentration of SO3 increases. C) The concent...

**Chemistry**

How much heat is needed to melt a 25 gram ice-cube at 0 °C? The molar heat of fusion for water is 6.01 kJ/mol. A) 6.01 kJ B) 8.35 kJ C) 150.25 kJ D) 3.34 kJ E) 9.22 kJ

**Math**

How would you expand 2.34 x 10^7 and 1.7 x 10^-12

**Maathh**

Describe the method of graphing by using intercepts.

**Speech Quick ?**

Would this be a good informative speech topic? Impact of media on society

**English**

In the novel Ceremony by Leslie Marmon Silko: Was Pinkie dependable?

**healthcare finance**

"determine the following variances from arcadia hospitals 2005 budget and determine if the variance positive or negative net patient revenue,wages,medical surgical supplies, utilities,maintenance, net income

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