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March 4, 2015

Search: blood pH that is considered normal in humans is 7.35 to 7.45. If a peblood pH changes from 7.35 to 7.45,

Number of results: 11,832

science chemical changes
What is the only way that a chemical change can be undone? With another chemical change?
November 6, 2006 by bob

civics
1)What are the current flaws in the Electoral College system? 2) What changes would you make in the system? 3)Would you make these changes? Why? How? 1)There are several flaws in the Electoral College system. Among these, is the Winner Take All system. Applyng this method, the...
March 8, 2009 by nirvana

Biology
3) Caucasian humans have a gene which determines the curliness of hair. Individuals with straight hair are homozygous for the straight allele while those with curly hair are homozygous for the curly allele. Heterozygotes have wavy hair. a) If two wavy haired people mate, what ...
September 16, 2012 by AAAA

history
Check my answers please? The Second Great Awakening was a conservative reaction to deism, the expanding frontier, & the industrial revolution. True, it was definitely a reaction to the IR & deism The romantic reaction to rationalism & the industrial revolution was seen in A. ...
November 2, 2014 by Anonymous

Genetics
The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s). What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce an average of 100 ...
March 15, 2012 by Anon

Genetics
The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s). What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce an average of 100 ...
March 18, 2012 by Anon

ecology
From a functional point of view, which pair of interactions is equivalent? A. Cleaner and client fish, and ants and aphids. B. Cleaner and client fish, and ants and acacias. C. Ants and aphids, and ants and acacias. D. Ants and acacias, and humans and cattle. *NOTE: I just ...
October 1, 2011 by A.A.

Computer Literacy
2. Which of the following components was a significant development featured in the Macintosh LISA computer? (C) C Prompt Disk Operating System Graphical User Interface) Memory 4. Which is NOT a function associated with a motherboard? (D) Expansion slot Memory Processor ...
April 21, 2014 by Mariah

STAT
a given normal distribution with u=70 and o=6. a- what is the probability of a randomly drawing a sample of n=9 with a mean graeter than 32? b- what is the probability of a randomly drawing a score that falls between 20 and 35?
October 24, 2010 by IEN

Vapor pressure of liquids
benzaldehyde has a normal boiling point of 179 C and a critical point at 422C and 45.9 atm. estimate its vapor pressure at 139C.
January 25, 2011 by Chem 2011

statistics
True or False For any normal distribution, the proportion corresponding to scores greater than z = +1.00 is exactly equal to the proportion corresponding to scores less than z = 1.00.
January 6, 2014 by Lyndyc

statistics
Assuming that the distribution is normal for weight relative to the ideal and 99% of the male participants scored between (–53.68, 64.64), where did 95% of the values for weight relative to the ideal lie? R
March 9, 2014 by Shannon

Chemistry
Determine the molar mass of a compound and its molecular formula if a solution of 1.00 g of the unknown is dissolved in 50 grams of cyclohexane. Cyclohexane freezes at 6.02 oC. The normal freezing point of cyclohexane is 6.50 oC and its kf value is 20.2 oC/m. The percent ...
December 4, 2013 by Megan

statistics
Heights of young adult US women are approximately normal with mean 64" and standard deviation 2.7". What proportion of all US young adult women are taller than 6 feet?
September 9, 2010 by Anonymous

engineering
The 50-kg stone has a speed of v_A = 8m/s when it reaches point A.Determine the normal force it exerts on the incline when it reaches point B. Neglect friction and the stone's size.
October 19, 2011 by HELP!!!

Physics
A force of 15 N is applied at an angle of 30 degrees with the horizontal on a 0.75 block at rest on a frictionless surface. a. What is the magnitude of the resulting acceleration of the block? b. What is the magnitude of the normal force?
December 4, 2011 by Tomomi

statistics
Heights of young adult U.S. women are approximately normal with mean 64" and standard deviation 2.7". What proportion of all U.S. young adult women are taller than 6 feet?
January 23, 2012 by Ashley

Statistics
True or False? As the degrees of freedom increase, the Student's t distribution becomes more like the standard normal distribution. Answer True False
July 7, 2012 by Desperate

Chemistry
Calculate the amount of heat in joules required to heat 43 grams of water from 28 degrees celcius to the normal boiling point 100 degrees celcius
October 12, 2012 by Anonymous

Physics
How do you know how long you need to draw the vectors? Like if the gravity vector line is longer than the normal force, or if the friction line is longer than the applied force or whatever..?
October 27, 2012 by Sammy

Chemistry
Acetone has a delta Hvap of 29.1 kj/mol and a normal boiling point of 56.2 degrees Celsius. At what temperature (in degrees Celsius) does acetone have a Pvap = 118 mm Hg?
March 19, 2013 by Brennan

Physics
A student of mass 75kg stands in a lift, what is the normal reaction force(upward force) on him when the lift is accelerating: a). Upwards at 0.65m/s^2 ? b). Downwards at 0.65m/s^2 ?
June 7, 2013 by OHara

PHysiscs
Four acrobats of mass 83.5 kg, 68.0 kg, 62.0 kg, and 55.0 kg form a human tower, with each acrobat standing on the shoulders of another acrobat. The 83.5-kg acrobat is at the bottom of the tower. (a) What is the normal force acting on the 83.5-kg acrobat?
March 18, 2014 by sam

Calculus
Find the outside and inside functions of the following to find their derivatives: 1) sqrt(2x+9) 2) cos(cos(x)) 3) tan(x) I already know how to find their derivatives I'm just not exactly sure what parts of the chain rule equation would be considered the outside and inside.
June 18, 2013 by Robin

Physics
Laser light with a wavelength = 665 illuminates a pair of slits at normal incidence. What slit separation will produce first-order maxima (i.e. m=1) at angles of 8 from the incident (or straight through) direction? Remember, 1 nm = m. Express your answer using two significant ...
March 17, 2012 by Barry

Chemistry
Fill a balloon with helium gas to a volume of 2.68 L at 23 celsius and 789mmHg. What would the volume of helium if the pressure changes to 632 mmHg but the temperature is unchanged. This is how I solved it V2 = V1 X P1/P2 2.68L X 789/632 = ANSWER V2 =.3.35 L Is this correct
October 23, 2007 by LT

Chemistry
Phenolphthalein is an indicator that changes colour to pink/purple between pH 8-->10, however, neutralization occurs when pH=7. Why can phenolphthalein still be used as the indicator during a strong acid-strong base titration with virtually no error?
December 12, 2007 by Lucy

Science
Explain the four factors that produce changes in population size. Which factors are affecting the population size? What do you predict will happen to the nutria populatin after all the land is depleted of the nutris'a food resources?
March 22, 2008 by Anonymous

Romeo and Juliet True/false help
I need help with this true/false question that I don't understand, and I can't find it anywhere. 1. Capulaet changes the wedding day out of joy for Juliet's change of heart after seeing the Friar.
April 8, 2009 by Juliet

phsyical science
the weight of an object is a) the force of earths gravity b) measured in kilograms c) the amount of matter it contains d)never changes no matter where the object moves in our solar system e) the number of particles it contains
April 12, 2010 by Andrea

Chemistry
A chemical reaction is run in which 132 joules of work is done by the system amd the internal energy changes by 469 joules. Calculate the amount of heat transferred. u=q+w I was going to do 469 = q + 132 but I think this is wrong.
January 22, 2012 by Hannah

physics
A steel beam is used in the construction of a skyscraper. By what fraction īL/Lo does the length of the beam increase when the temperature changes from that on a cold winter day (-15.0oF) to that on a summer day (+105.0oF)? Take: Ąsteel= 12x10-6/Co
May 28, 2013 by Janaiby

Non-Western Art
How to find images that addresses changes in art and or culture that occurred as a result of Western contact and/or influence in the five continents which are Africa, Asia, Australia, North America, and South America
November 13, 2013 by Shanell Ivy

Math
Use a graphing utility to graph the function. Then use the trace or table feature to identify the limit. lim 5/x-2 x-->2 I know I posted this question before but I am still having a hard time doing this. I pressed the y= button and typed the normal equation in: 5/x-2. Is ...
May 4, 2010 by Abbey

Math
Use a graphing utility to graph the function. Then use the trace or table feature to identify the limit. lim 5/x-2 x-->2 I know I posted this question before but I am still having a hard time doing this. I pressed the y= button and typed the normal equation in: 5/x-2. Is ...
May 4, 2010 by Abbey(Please help)

working in a pharmacy
when a special begins to lose its impact you should a.transfer the products to theshelves at their normal price b.move the products to another spot c.send the stock back to the manufacture or supplier. d.set up an attractive display using your product knowledge my answer is b
January 23, 2013 by susue

psychology
One of the best ways to compute heritability is to compare: A adopted children compare to adopted siblings B blood relatives who live in different environments C fraternal twins reared in different environments D indentical twins reared in different environments, I THINK IS A ...
September 16, 2009 by vedrana

English-Grammar check
Can someone tell me if these 2 sentences are the correct use of a semi colon: Another example of prejudice displaying in Maycomb county is against Arthur Radly, the local everyone is afraid of; he is considered the town freak. One more example of prejudice found in To Kill a ...
April 6, 2009 by Mike

Math
The equation y=2x+7 represents a linear relationship that is non-proportional. What changes could I make to the equation to make it proportional? Thanks
November 29, 2011 by Tim

statistics
Select the most appropriate study design for each of the following questions. (Note: All study design options may not be used and each design option can be used more than once. 1. A study is done to examine the association between a mother’s education and risk of a congenital ...
January 15, 2013 by jhikjhak

physics
Two identical 1.60 {\rm kg} masses are pressed against opposite ends of a spring of force constant 1.85 {\rm N}/{\rm cm}, compressing the spring by 25.0 {\rm cm} from its normal length.Find the maximum speed of each mass when it has moved free of the spring on a smooth, ...
December 23, 2011 by Anonymous

ap chemistry
Benzene is a hydrocarbon that is commonly used as a commercial solvent. However, it is carcinogenic; i.e., accumulations in the body can cause cancer. What is the vapor pressure of benzene at 29C? The normal boiling point of benzene is 80.0C and its molar heat of ...
April 15, 2013 by Anonymous

ap chemistry
Benzene is a hydrocarbon that is commonly used as a commercial solvent. However, it is carcinogenic; i.e., accumulations in the body can cause cancer. What is the vapor pressure of benzene at 29C? The normal boiling point of benzene is 80.0C and its molar heat of ...
April 15, 2013 by cheri

chemistry-lab
2.What does it mean to “follow the course of a reaction”? I would imagine it means to find the overall order of the reaction and make it in to a rate law equation. That's part of it. It can mean, in addition, to knowing any intermediates formed and how they react/decompose as ...
February 13, 2007 by Rob

Physics
In a refrigerator, I know there is a liquid called refrigerant circulates through coils within the refrigerator to absorb heat from the interior. But what would happen if too much refrigerant was present in the system? Too less? Please use phase changes to explain your answers...
April 11, 2009 by Anonymous

social studies
how were the explorations of francisco pizarro and hernando cortes similar? how were they differnt discribe the lands the french explored in the new world you ahve read about countries that explored and claimed lands in the americans what changes occurred as a result of this ...
November 23, 2009 by garrick

chemistry
describe how the changes would affect each of the following chemical equilibra involving gases.. 2NO2(arows facing both direction) N204+HEAT 1.THE TEMPERATURE IS INCREASE 2.THE PRESSURE IS DECREASED 3.THE CONCENTRATION OF NO2 is increase 4.THE CONCENTRATION OF N2O4 IS DECRESED
May 8, 2010 by CILLA

physics
Suppose we attempt to account for air resistance in our projectile motion in the following (incorrect) way: we alter g so that the acceleration in the y direction is -8 m/s2, and introduce a horizontal acceleration of -3 m/s2. With these changes, find the landing point of a ...
September 2, 2012 by mitch

marketing
The economic environment a.of an individual country has little effect on other countries. b. refers to the application of science to convert resources to output. c. includes changes in interest rates and inflation. has little impact on an organization's marketing strategy. d. ...
January 26, 2013 by Andrew

US History
I Need Help to Start my Thematic Essay, Theme is change- Throughout united states history individuals other than presidents have played significant roles that led to changes in the nations economy, government, or society. I need help to restate this for my introduction.
April 21, 2013 by Lupe

health
Children's Hospital in Boston, Massachusetts, has long been considered an outstanding medical center specializing in the diagnosis and treatment of pediatric problems. This facility is linked academically to the Harvard University Medical School. Conduct a brief SWOT analysis ...
May 7, 2011 by Anonymous

Health (Ms. Sue)
Describe how vaccinations work to protect the body from illness. A: When a vaccine is injected or swallowed, the immune system responds to the vaccine material by making white blood cells called memory cells. Therefore, when or if the pathogen against which the vaccine was ...
November 20, 2013 by Anonymous

Physics question
Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a force of approximately 260,000 N acting on its torso when it hit the ground. Question 1 Assuming the torso has a mass of 3800 kg , find the magnitude of the torso's upward ...
September 23, 2009 by Mia

Chemistry
In stoichiometry, chemists are mainly concerned with a. types of bonds found in compounds b. energy changes occuring in chemical reactions c. mass relationships in chemical reactions d. speed with which chemical reactions occur i thought c?
March 10, 2010 by Ana

math
The wholesale cost of a video game is $459.45. The original markup was 51% based on selling price. Find the final sale price after the following series of price changes: a markup of 24%, a markup of 17%, and a markdown of 10%.
March 24, 2014 by bunny

math
The wholesale cost of a video game is $459.45. The original markup was 51% based on selling price. Find the final sale price after the following series of price changes: a markup of 24%, a markup of 17%, and a markdown of 10%.
March 24, 2014 by bunny

Physics
A 23 kg suitcase is being pulled with a constant speed by a handle that is at an angle of 25° above the horizontal. If the normal force exerted on the suitcase is 155 N, what is the force F applied to the handle?
January 14, 2010 by amy

physics
A 23 kg suitcase is being pulled with a constant speed by a handle that is at an angle of 29° above the horizontal. If the normal force exerted on the suitcase is 150 N, what is the force F applied to the handle?
October 5, 2010 by ash;ley

Physics
A block with a mass 4.0 kg is held in equilibrium on an incline of angle θ = 42° by a horizontal force F. a)Find the magnitude of the normal force. b) Find the magnitude of F. (Ignore friction.)
October 19, 2010 by Diana

math
1. A die is tossed 10 times and the number of sixes rolled is recorded. The number of sixes rolled will follow what type of distribution? a. poison b. binomial c. geometric d. normal
January 4, 2011 by kenneth

statistics
A normal distribution has a mean of µ = 100 with standard deviation = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 100?
March 7, 2012 by Asia

stat
if the probability of a newborn child being female is 0.5, find the probability that in 100 births, 55 or more will be female.use the normal distribution to approximate the binomial distribution
June 18, 2012 by veedu

statistics
Given the length an athlete throws a hammer is a normal random variable with mean 50 feet and standard deviation 5 feet, what is the probability he throws it between 50 feet and 60 feet?
October 19, 2012 by Alex

physics
a 1000kg car goes over the top of a hill with a radius curvature equal to 40.0m. At the top of the hill the normal force is 2,500 N. How fast is the car going?
October 19, 2012 by Anonymous

Chemistry
The normal boiling point of bromine (Br2) is 58.8°C, and its molar enthalpy of vaporization is ΔHvap = 29.6 kJ/mol. Calculate the value of ΔS when 1.00 mol of Br2(l) is vaporized at 58.8°C.?
December 4, 2012 by Josh G.

Statistics
If the probability of a newborn child being female is 0.5, find the probability that in 100 births, 55 or more will be female. Use the normal distribution to approximate the binomial distribution.
February 10, 2013 by Kayla

Accounting
An asset's cost includes all normal and reasonable expenditures necessary to get the asset in place and ready for its intended use. 01.) True 02.) False True or False?
April 1, 2014 by Jessica

math
Benadryl is on sell this week for 20% off of the normal selling price at $10.00 per unit. If the pharmacy purchased Benadryl at $8.00 per unit, what is the gross profit percentage?
July 28, 2014 by cham

Chem.
Ethanol has a heat of vaporization of 38.56 KJ/Mol. And a normal boiling point of 78.4 degrees celcius. WHAT is the vapor pressure of ethanol at 18 degrees celcius??
February 10, 2010 by Joseph

Chemistry
the vapor pressure of ethanol at its normal boiling point would be 1)80 kPa 2)101.2 kPa 3)273 kPa 4)373 kPa would it be 1 ?
February 24, 2011 by Hannah

math
the rate of return for an investment can be described by a normal distribution with mean 22% and standard deviation 3%. what is the probability that the rate of return for the investment will be at least 15%?
April 27, 2011 by Carola

education
Behavioral objectives clearly stated A. What the children will actually do B. How children should behave C. What children are interested D.the range of normal behavioral for children
September 22, 2012 by phillip

Statistics
True or False If a sample of at least 30 scores is randomly selected from a normal population, the sample mean will be equal to the population mean.
December 9, 2013 by Lyndyc

Chemistry
Calculate the normal boiling point of a compound that has a vapor pressure of 19.30kPa at 167 Fahrenheit and a vapor pressure of 1.86kPa at 77 Fahrenheit.
January 27, 2015 by Annonymous

Chemistry
A patient with untreated diabetes may have a blood concentration of acetone of 20mg/100mL. Determine the molar mass of acetone and use this number to convert this concentration to mol/L. Okay, so I was able to determine the molar mass of acetone (= 58.09g/mol) however, i'm not...
May 3, 2012 by Hannah

Qualities
If people like firemen risk their lives to save their country, homes. What qualities would they be considered to have, what would you say about them? You would say that they are brave, and sweet to care for their country and save others. please more ideas.
April 20, 2011 by Anonymous

13
Children and adolescents are considered to be reflected in which age group? A. 6-17 years old B. 3-17 years old C. 5-17 years old D. 10-17 years old c
March 4, 2012 by desha

Physics
1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid? 2) A ray of light strikes a piece of glass (n=1.52) and makes an angle of 50 degrees with the surface. What angle does the refracted ray make with the surface...
February 16, 2011 by Ninzy

Physics
1) The speed of light in a certain liquid is 3/5 the speed in a vacuum. What is the index of refraction of the liquid? 2) A ray of light strikes a piece of glass (n=1.52) and makes an angle of 50 degrees with the surface. What angle does the refracted ray make with the surface...
February 16, 2011 by Ninzy

English
How do you paraphrase this statement? A brain aneurysm is a ballooning-out of the wall of an artery in the brain. Often this wall is weakened by disease, injury or an abnormality present at birth. Aneurysms are often caused or made worse by high blood pressure. They aren't ...
June 4, 2008 by kanae

History-Ms.Sue
SraJMcGin read this but he didn't help me out. Pro-war & religion ( Rememeber I'm against global peace) Is this right at all and what else can I add because I need a couple more sentences. Thanks A few people feel that they believe in the only right religion and that people of...
April 1, 2009 by Kara

History
Which of the following is NOT something a geographer can explain to a historian? A.why people populated certain areas B.how people change their environment C.how the environment changes people D.why people like other people I know is D but i need accurate answer
February 13, 2012 by Sariah

Physics - ice skating
An ice skater pulls three small children, one behind the other, with masses 25kg, 31kg, and 35kg. Assume that the ice is smooth enough to be considered frictionless. If the skater is holding onto the 25kg child, find the tension in the arms of the next child in line.
August 5, 2010 by Shaila

Chemistry
1. What happens if our calorimeter is not properly insulated..what effect will it have on our calculated specific heat capacity I.e too large, too small or no effect....explain. 2. If our partner forgot to cover the coffee cup calorimeter while the temperature was being ...
November 18, 2014 by Precious

please help statics
I have to come up with a statics problems. i have to make up a problem and take photos that includes a frame or machines. Machines, like those tractor machines or amusement ride. For a frame though, is a step stool that folds considered as a frame. The sides are connected and ...
November 18, 2008 by jen

Just Curious
A few questions out of curiosity. What does jiskha mean? And what is your view point of Pluto Since Pluto is no longer considered a planet, do you think it should still e called a planet? Not just dwarf planet, but a planet like Mars or Earth? Thanks and sorry for any bother...
April 10, 2012 by ♥rebel•stupidity=kathy♥

Chemistry
We had to calculate the resolution between to peaks resulting from an HPLC assay using an internal standard for determination of an analyte "x". I came up with 2.6, which is considered good resolution. Now we are supposed to calculate the concentration of the unknown assuming ...
April 16, 2013 by Maranda

Physics
How Many Capillaries? The aorta has an inside diameter of approximately 2.1 cm, compared to that of a capillary, which is about 1.0×10−5m (10 μm). In addition, the average speed of flow is approximately 1.0 m/s in the aorta and 1.0 cm/s in a capillary Assuming that ...
April 17, 2014 by Brady

Science
The normal recommended amount of vitamin c is 1,000 milligrams(mg) per day for non-pregnant woman. During pregnancy, how much Vitamin C does a pregnant woman need?
January 11, 2010 by Tiffany

anatomy and physiology
Bone mineral density scans are required to detect early signs of osteoporosis because normal x-rays don't detect it until what percent of bone density is gone?
October 31, 2010 by Stacie

Physics
A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.
February 7, 2011 by Megan

Physics
A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.
February 7, 2011 by Megan

Physics
A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.
February 7, 2011 by Megan

math
the tangent yo the curve y=x^2 +5x -2 @ the point (1,4)intersect the normal to the same curve @ the point (-3,-8) at the point P.Find the coordinates of point P.[ans: -1/3,-16/3] just give me some hint to calculate this solution.
July 22, 2011 by rob

chemistry
a sample of water under study was found to boil at 102 degree Celsius at normal temperature and pressure. is the water pure ? will it freeze at 0 degree Celsius? comment ....
August 23, 2011 by Anonymous

Biology
Suppose that a clolur blind man has parents with normal vision. Would all his sons be colour-blind ? Was his mother a carrier ? would all his daughters be carriers
October 26, 2011 by Melissa

Statics
Assume that the population is normal. A sample of size 100 is taken. The resultant sample data has a mean of 48 and a standard deviation of 15. Construct the 99% confidence interval for the population mean.
December 2, 2012 by Heather

Chemistry
The following thermodynamic data was obtained for an unknown compound. Delta Hvap = 31.3 kj/mol and Delta S Vap= 79.7 kj/mol .Calculate the normal boiling point of this compound in Celcius.. Thank you!
April 29, 2013 by Chloe

math,algebra
Can someone help me set this up to solve or what should i do because i have no clue. thanks. Some scientists believe there is a limit to how long humans can live.* One supporting argument is that during the last century, life expectancy from age 65 has increased more slowly ...
May 25, 2007 by mathstudent05

science
5. The Papanicolaou test is used to detect A. conization in situ. C. minimal cervical dysplasia. B. protein in the urine. D. colonic polyposis. 6. The function of the antidiuretic hormone is to A. retain water for the body’s use. B. begin digestion of carbohydrates during ...
November 12, 2010 by JALL SHAW

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