Saturday
September 20, 2014

Search: A particular brand of gasoline has a density of 0.737 at 25 . How many grams of this gasoline would fill a 12.6 tank?

Number of results: 55,602

stat
1. The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with = 110 grams and = 25 grams. A sample of 25 vitamins is to be selected. So, 95% of all sample means will be greater than how many grams?
December 1, 2010 by Anonymous

chemistry
Automotive air bags inflate when sodium azide, NaN3, rapidly decomposes to its component elements: 2NaN3(s)→2Na(s)+3N2(g) a)How many moles of N2 are produced by the decomposition of 1.60mol of NaN3? b)How many grams of NaN3 are required to form 14.0g of nitrogen gas? c)...
January 10, 2014 by Veronique

Microeconomics
Discussion Question 2 Thirty years ago, the market for chicken was perfectly competitive until Frank Perdue began marketing chicken under his name. How do you suppose Perdue created a brand name for chicken? What did he gain from doing so? What did society gain from having ...
September 23, 2011 by Ms. Jones

chemistry
Express the approximate density of carbon dioxide gas at 0 degrees C and 2.00 atm pressure in grams per liter.
November 16, 2010 by Anonymous

Chemistry
Calculate the density of a metal object that has a dull surface and an irregular shape. It has a mass of 321 grams and a volume of 45.2 cm 3.
February 6, 2012 by Tia

physics
one side of a square bolck is 20 cm. the block weighs 320 grams. which numeral could be used to express the density? is it 0.04, 0.25, 16, or 25?
April 6, 2012 by Anonymous

General chemistry
The density of the vapor of a compound at 95 degrees C and 827 mmhg is 7.41 grams/liter. Calculate the molecular weight.
December 9, 2012 by nad

chemistry
If Kf = 1.86C/m, how many grams of calcium chloride must be added to 1.0L of water (assume a density of 1.0 g/mL) to lower the freezing point 4.0 C?
March 2, 2013 by Dee

Maths
Please help!!! The mass of a particular substance is known to grow exponentially at a rate of 1.5% per day. Its initial mass was 230 grams and, after t days, it weighed 325 grams. The equation modelling this growth is 2301.015 t  =  325. Use the ...
August 14, 2010 by Sue

Chemistry
The LD (subscript 50) for a drug dose that would be fatal for 50% of the population. The LD (subscript 50)for aspirin in rats is 1.75 grams/kilogram of body weight. Calculate how many aspirin tablets a human weighing 155 pounds would have to take to reach this dosage. (1 ...
January 8, 2012 by Sharon

physics
Rachel is asked to calculate the density of a liquid. She correctly measures the mass of the liquid to be 13.9 grams, but she incorrectly measures the volume of the liquid to be 8 mL. The actual volume of the liquid is 7 mL. If Rachel uses the following equation to calculate ...
January 23, 2012 by Anonymous

science
2 H2 + O2 -> 2 H2O 2 grams + 32 grams -> _ _ _ _ _ grams how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts? include types of change illustrated in the balanced equation. explain the conversation of matter and ...
March 31, 2013 by jeff

science
2 H2 + O2 -> 2 H2O 2 grams + 32 grams -> _ _ _ _ _ grams how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts? include types of change illustrated in the balanced equation. explain the conversation of matter and ...
March 31, 2013 by jeff

science
2 H2 + O2 -> 2 H2O 2 grams + 32 grams -> _ _ _ _ _ grams how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts? include types of change illustrated in the balanced equation. explain the conversation of matter and ...
March 31, 2013 by jeff

science
2 H2 + O2 -> 2 H2O 2 grams + 32 grams -> _ _ _ _ _ grams how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts? include types of change illustrated in the balanced equation. explain the conversation of matter and ...
March 31, 2013 by jeff

Chemistry
Ammonium sulfate reacts with a solution of sodium hydroxide to produce sodium sulfate, ammonia gas and water. Calculate the yield in grams of ammonia gas that would form; and the amount of excess reagent in grams that would be left in the flask, after 9.92 grams of ammonium ...
April 17, 2011 by John

chem
if you were to react 14.00 grams of salicylic acid with 8.50 grams of acetic anhydride, what would your theoretical yield be? the reaction is C7H6O3+C4H6O3--> C9H8O4 + C2H4O2 assuming 1:1 ratio.
September 1, 2009 by lyne

chemistry (molecular calculations)
If you had 106.35 grams of Cl, how much Na would be required to convert i all to NaCl. I worked this problem and got 41.83 grams of Na, but I'm not sure if this is correct.
November 13, 2012 by Eliza

chemistry
given the density of helium is 0.1785g/cm3 and the density of argon is 1.784g/cm.3 estimate the density of neon
October 28, 2012 by Jessa

chemistry
J. J. Berzelius collected the following data for three reactions: Reaction 1 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur Reaction 2 11.56 grams of lead sulfide were formed when 10.0 grams of lead reacted with 3.00...
October 9, 2013 by Brittney

Physics
Four point masses are arranged on the xy plane as follows. Mass1 = 47.0 grams at x = 2.00 cm and y = 2.00 cm. Mass2 = 55.0 grams at x = 0.00 cm and y = 4.00 cm. Mass3 = 27.0 grams at x = -3.00 cm and y = -3.00 cm. Mass4 = 45.0 grams at x = -1.00 cm and y = 2.00 cm. What is the...
November 8, 2013 by JAYZ

Astro
Suppose you lived on a planet with the same radius as the Earth, but it had a density 2.99 times Earth's density. Your weight would be different on this planet. Find how much you would weigh on this planet divided by your weight on Earth
March 27, 2012 by John

science need help
2 H2 + O2 -> 2 H2O 2 grams + 32 grams -> _ _ _ _ _ grams how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts? include types of change illustrated in the balanced equation. explain the conversation of matter and ...
April 1, 2013 by jeff

Statistics
In an experiment, you measure the popularity of two brands of soft drinks (factor A), and for each brand you test males and females (factor B). The following table shows the main effect and cell means from the study: Factor A Level A1: Level A2: Brand X Brand Y Level B1: 14 23...
March 10, 2014 by Joy

chemistry URGENT...30 min left
Gasoline is a mixture of hydrocarbons of various chain lengths, ranging from 5-carbon chains to 10-carbon chains. One of the hydrocarbons we often hear about is the 8-carbon chain, octane. Octane combusts with oxygen as given by the balanced equation: 2C8H18(g) + 25O2(g) &#...
April 22, 2010 by Luda

Chem
Assume low fat milk is 2.36 % buttermilk by volume. If you drink 3 L of milk, how many liters of butterfat have you drunk? =.0708 L Given that the density of the buttermilk is measured to be 0.79 g/mL and you have not drunk anymore milk, how many grams of buttermilk have you ...
September 5, 2014 by Alexis

ThermoPhysics
During the compression stroke of a certain gasoline engine, the pressure increases from 1.00 atm to 20.5 atm. The process is adiabatic and the airfuel mixture behaves as a diatomic ideal gas. (a) By what factor does the volume change? Vfinal = Vinitial (b) By what factor does...
May 11, 2013 by CheckingMyAnswers

chemistry
Determine the amount (in grams) of boron that when substitutionally incorporated into of silicon will establish a charge carrier density of carriers/cm .
April 1, 2013 by adex

Chemistry
I have this problem.... Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane? Am I to solve by using mass = density x volume? And if so, is the answer 32.62mL?
September 16, 2012 by Amanda

English_ Language of the media
We had to answer some questions about advertising and choose an ad off TV and out on a magazine to do it on. I did a shampoo ad on TV and a purfume ad in a magazine but i dont get the questions 8 and 9: 8- What are some of the explict values and attitudes assumed to be shared ...
July 30, 2006 by Stacey

math
13 cents for A 12 cents for B. total protein greater than twelve grams. Total fat less than eight grams. Total grams less than thirty five grams. .5 grams protein and .3 grams fat for A. .6 grams protein and .2 grams fat for B. what is optimal cost
February 12, 2013 by Jerome

math
The weights of adult long-tongued fruit bats are known to be normally distributed with a mean of 20.22 grams and a standard deviation of 3.23 grams. What is the probability that a randomly selected bat will: a) weigh at most 15 grams? b) weigh less than 30 grams?
March 21, 2012 by becky

Math
The weights of adult long-tongued fruit bats are known to be normally distributed with a mean of 20.22 grams and a standard deviation of 3.23 grams. What is the probability that a randomly selected bat will: a) weigh at most 15 grams? b) weigh less than 30 grams?
March 23, 2012 by Becky

physics
a new brand of solar panel generates 500 watts of electrical energy. how much energy would it produce after 24 years."
October 31, 2012 by Alex Reynolds

chemistry
The body-centered cubic unit cell of a particular crystalline form of silver is 2.2887A on each side. Calculate the density of this form of silver?
December 10, 2009 by Ericka

Math/Chemistry
We were given an assignment to find a formula for finding the density of water. I wasn't in class when the assignment was given, but the teacher gave the class two values: density H2O at 20 degrees C= .998823 g/mL density H2O at 25 degrees C= .99707 g/mL A friend of mine told ...
February 8, 2007 by Chris

Chemistry
Can someone please help me with these: 3. Dissolving salt in water is a physical change- False? 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a ...
October 19, 2010 by mysterychicken

Physics
A medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.2010^4 Pa, while in the region of blockage it is 1.1510^4 Pa. ...
November 12, 2008 by Andrea

statistics/ Help!-thanks!
The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people use the new toothpaste for 6 months. The mean number of cavities at their next check up is 1.5. In the general population the mean # of cavities...
August 25, 2012 by StudentD

physics
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.
March 28, 2012 by Kristie

physics
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.
March 29, 2012 by Jim

physics
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m/s^3. Calculate where the top of the atmosphere would be.
March 31, 2012 by C

Geography
Hey ya'll need a bit of help with a report i have to do on an environmental issue. Basically I need to choose an issue to research which has a two sided argument (something on bird flu or world debt, power stations etc) Really stuck, appreciate any suggestions that I could ...
August 13, 2006 by Louise

chemistry
When a piece of copper weighing 250 grams is placed n a cup with 450ml of H2O at 21C and the Cp of te cupis 47J/K, how many grams of gasolne would it tae to heat the system to 110C?
February 16, 2011 by reginajones

physiology/ anatomy
I'm doing a lab about osmosis/ diffusion. We put a 2 molar solution of NaCl into a dialysis bag and submerse the bag in water, weighing the bag after 15 minute increments for an hour. I need help explaining why the weight of the bag would fluctuate (EX. 6 grams -> 7 grams...
September 7, 2012 by kira

Chemistry
utomotive air bags inflate when sodium azide, NaN3, rapidly decomposes to its component elements. 2 NaN3(s) → 2 Na(s) + 3 N2(g) (a) How many moles of N2 are produced by the decomposition of 3.50 moles of NaN3? (b) How many grams of NaN3 are required to form 16.0 g of ...
August 23, 2011 by Bles

Chemistry help!!
A chemist wants to be a supercook and wants to create 8%(m/v) acetic acud solution to be "extra strength" vinegar. if pure acetic acid Is a liquid density of 1.049 g/ml. how many ml of acetic acid should be dissolved to male 500 ml of 8% acetic acid? It says to first calculate...
April 22, 2012 by Kate

Chemistry
Posted by Angeline on Monday, April 20, 2009 at 5:35pm. A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as ...
April 20, 2009 by Angeline

STATISTICS HELP!!!!!!!
Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The distribution is mound-shaped with mean μ = 80.04 cents per gallon and standard deviation, σ = 4.74 cents per gallon. (a) Are we likely to get ...
August 10, 2011 by Amy

Density
Can you identify a metal if you know its density? Explain It depends upon how accurately the density is determined. In some cases, especially where the "unknown" has a density that isn't close to another metal, yes, the density can identify the metal with a high degree of ...
August 29, 2006 by John

chemistry calculation
I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 grams of powdered NaH2PO4. H2O. thanks
June 1, 2013 by sue

CHEMISTRY
HOW MANY GRAMS OF CO2 WOULD BE FORMED FROM 20 GRAMS OF C6H6 IN THE FOLLOWING REACTION? 2 C6H6 + 15O2=12CO2 +6 H2O
December 27, 2009 by ANGELA

chemistry honors
how many grams of a stock solution that is 85% H2SO4 by mass would be needed to make 150 grams of a 45.0 percent solution?
September 30, 2010 by jimmy

chemistry
Suppose 87.9 grams of FeCl3 reacts with excess aluminum metal to produce 22.3 grams of Fe. What would be the % yield? FeCl3 + Al --> AlCl3 + Fe
March 26, 2013 by Amy

chemistry
The solubility of KI is 50 g in 100 g of H2O at 20 ?C. If 110 grams of KI are added to 200 grams of H2O, what would happen?
June 20, 2011 by Glo

Mura
Could anyone help me with this question...Mecury has a density of 13.6g/cm^3 at 20C.What would be the density of mecury at 100C?
March 15, 2012 by Abraham

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011 by Jay

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011 by Jay

physics
If a gasoline engine has an efficiency of 21 percent and loses 780 J to the cooling system and exhaust during each cycle, how much work is done by the engine? Is it 3709.5??? Chemical energy in (as fuel and oxygen) = Work out + Heat out 21% is the ratio of Work out to Chemical...
February 15, 2007 by anonymous

Chemistry
4. Suppose there are 72.0 g of O2 available, along with the 8.08 grams of H2. Use ratios of stoichiometric coefficients to find the limiting reagent for the reaction. Then, find the theoretical yield in both moles and grams. 2H2 + 1O2 2H2O I got 2.25 grams for o2 Then 4.48 ...
September 13, 2014 by Feather

physics
This is my problem: A particle with a density of 0.9g/ml is suspended in a solution that has a density of 1.1g/ml. It cannot be sedimented. Using the equation that describes the movement of a particle in a centrifugal field, describe why this is true. The issue I'm having is ...
February 2, 2013 by Dave

chemistry
3. Use the ratio of stoichiometric coefficients in the reaction above to determine how many moles of O2 will react with the H2 available. Then, use molar mass to convert the moles of O2 into grams. For the reaction 2H2 + 1O2 =2H2O, there are 8.08 grams of H2 available. the ...
September 13, 2014 by feather

4th Grade - Science Fair Project
Which brand of band-aid sticks best? How does Generic vs. Name brand differ in the way the band-aid sticks? Is one better than the other? Is there a site to help me with this Science Fair Project? Can't find one about Band-Aids????
November 9, 2010 by John

4th Grade - Science Fair Project
Which brand of band-aid sticks best? How does Generic vs. Name brand differ in the way the band-aid sticks? Is one better than the other? Is there a site to help me with this Science Fair Project? Can't find one about Band-Aids????
November 9, 2010 by John

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.
November 29, 2010 by Ann

Chemistry
The organic compound di-n-butyl phthalate, C16H22O4(l), is sometimes used as a low-density (1.046 gmL1) manometer fluid. Compute the pressure (in torr) of a gas that supports a 555-mm column of di-n-butyl phthalate. The density of mercury is 13.53 gmL1. Note: For a mercury...
October 28, 2012 by Garcia

chemistry/math
The density of air at ordinary atmospheric pressure and 25C is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 12.0 ft 12.5 ft 7.3 ft? i made ft^3 into Liters and got 8,346,211.799 then I made the grams into kilograms and set up density = mass/...
August 19, 2012 by Hannah

chemistry
If there are 2.0 grams in 1 meter of copper wire, how many centimeters would be needed to provide .28 grams of copper?
September 2, 2011 by Julie

statistics
The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal. 10 18 24 30 19 22 24 20 18 25 20 22 19 The variance for this data would be __________ grams.
February 9, 2010 by iyra

Chemistry
A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL?
November 2, 2010 by Jazz

Chemistry
how do I write out this problem? How many grams of lithium metal would be produced if 0.500 grams of magnesium was added to a solution of lithium chloride
November 30, 2010 by Tosha

science
A single mole of AgNO3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNO3 would need to be dissolved in 1 liter?
July 11, 2012 by yoly

Chem.. stoichiometry
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is: C + H2O → CO + H2 Is this equation balanced?
May 3, 2013 by Jenna Woodruff

8th grade science
a 10-liter sample of one type of crude oil has a mass of 8.20kg. What i the density? If this oil spilled on the ocean's surface, would it sink or float? explain answer in terms of density.
March 24, 2010 by sam

Science
What is the mass of 15mL sample of mercury? Look up the density of mercury. mass = volume x density. Make sure the density is in g/mL. If it isn't you will need to convert it. One place to find density of mercury is at www.webelements.com and click on element #80. I don't ...
November 16, 2006 by Crystal

chemistry
How many grams of water would you add to 1.00 kg of 1.48 m CH3OH(aq) to reduce the molality to 1.00 m CH3OH. Use two sig figs. I get 4.8 * 10^2 grams and its not right. I want to put this up here again to see if there are any errors that could have possibly been made. (Putting...
February 21, 2010 by david

chemistry
I can't find a substance apart of water with a pH of 7,so i have a question, i don't know if water is the only neutral substance or if there are more which one's are those? Any salt solution that doesn't hydrolyze in water will be neutral. Any liquid (alcohol, gasoline, etc) ...
February 4, 2007 by Claudia

chemistry
how many grams of AgNO3 would need to be dissolved in 1 liter, 500mL, and 100mL in order to make a 1M solution? need to show work and answers are in grams....????
July 16, 2010 by al

chemistry
How many grams of sodium cyanide would be required to make 55 grams of sodium sulfate?
May 15, 2011 by Sabrina

Science
How many grams of oxygen gas would be needed to react with 75 grams of hydrogen gas
January 8, 2013 by Tammy

chemistry
Thimerosal is an organic compound (gram molecular mass = 404.8 g/mol) used to inhibit bacterial growth. A .100%solution of thimerosal is sometimes used as an antiseptic. Assume that this solution has a density of 1.00 g/mL. A. how many grams of thimerosal are found in .500 g ...
April 7, 2013 by Tyler

chemmmistry
vitamin c has a density of 1.65 grams per cm^3. what is the volume (in cm^3) of a 500mg tablet of vitamin c ?
September 27, 2011 by lean- help

Gen. Chem 1
The density of 18% nh4cl is 1.05 grams/ml. What mass of nh4cl is in 425 ml of the solution?
March 19, 2012 by Zack

science
If wood weights 18 grams with a density of 0.5 what is the volume ans what type of wood is it
October 17, 2012 by Anonymous

Math
If 241.5 grams of gold has a volume of 12.5 cubic centimeters, what is the density of gold?
January 8, 2013 by Camma Breezy

nursing
500 grams of sugar occupies a volume of 0.315 L. what is the density of the sugar in g/mL?
January 17, 2013 by jasmin

Chemistry
If the density of mercury is 13.6 g/ml, what is the mass of 3.0 liters of mercury in: Grams? Pounds?
September 13, 2007 by Ayeisha

science
a block of wood 3.0 cm on each side has a mass of 27 grams what is the density of this block thanks
September 1, 2009 by shearika

college
lead has density of 11.35g/ml,i have 3.45 cc of lead what is the weight in grams.
August 31, 2010 by mark

chem
An unknown metal has a volume of 5.25 mL and a density 2.71 g/mL. What is the weight of the metal in grams?
December 4, 2010 by Ivy

Chemistry
What is the volume of 4.00 grams of air if the density of air at the time of the measurement is 1.19 g/l?
February 6, 2012 by Lisa

Science
A solution has a density of 3/mL. How many grams are needed to obtain 10.0mL of solution?
September 24, 2012 by Sammi

science
what must be the density of an object with a mass of 5000 grams if the object is to float in water?
January 25, 2010 by John

chemistry
The mass of one penny is 2.51 grams and its volume is 0.40 cubic centimeter. The density in g/ml of this penny is
August 31, 2011 by Anonymous

chemistry
100 grams of a liquid completely fill a 200 ml bottle. What is the density of the liquid?
April 5, 2011 by Joe

hw
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid. how to solve this?
September 22, 2011 by hw help ASAP

chemistry
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid.
September 22, 2011 by ann

chemistry
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid.
September 22, 2011 by victor

chemistry thank you
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid
September 27, 2011 by grace

physical sciences
If 57.9 grams of gold has a volume of 3 cubic centimeters what is the density of gold in g/ cm3,?
April 26, 2012 by kl

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