Sunday

December 21, 2014

December 21, 2014

Number of results: 57,618

**Chemistry**

Consider: C6H12)6 + 6O2-> 6CO2 + 6H2O + Energy a)If I have 90 grams glucose and all is consumed by oxygen, then how many grams of water will be produced? b)How many grams of oxygen will be consumed? c)How many grams of sugar will be burned off if 85 grams of O2 is consumed?
*January 22, 2011 by Lindsey*

**Science**

Calculate the density if the mass of a solid material is measuered as 15.00 grams and its volume is measured as 5.0cmCUBED?
*August 20, 2008 by Kyle*

**Chem Honors**

at what temperature will nitrogen gas have a density of 1.13 grams/meters at a pressure of 1.09 ATM
*February 11, 2011 by Ari*

**chemistry**

If I have 10 silver coins and they weigh 55 grams and displace water from 25 mL to 35 mL, what is the density? What is the specific gravity?
*June 26, 2011 by S*

**chemistry**

If the density of an element is 6 g/ml, how much space (in milliliters) should a sample of it displace if it has a mass of 2.4 grams?
*September 22, 2011 by gia*

**Science**

Calculate:what is the density of a metal block that has a mass of 750 grams and a volume of 55 cubic centimeters?
*October 12, 2011 by Faith*

**Chemistry**

What is the density of Li2S in grams per cubic centimeter, if the edge length of the unit cell is 5.88*10^2 pm?
*January 30, 2012 by amicus*

**Chemistry**

If I have 10 silver coins and they weigh 55 grams and displace water from 25 mL to 26 mL, what is the density? What is the specific gravity?
*June 29, 2013 by Dana*

**chemistry**

a block of metal has a volume of 13.4in^3 and a weight of 5.14 lb. what is its density in grams per cm^3? Show operation
*July 10, 2014 by michael*

**Science**

If You Heated 100 Grams Of Powdered Mercuric Oxide To Produce 93 Grams Of Liquid Mercury How Much Oxygen Would Be Released
*November 10, 2014 by Sarah *

**Chemistry**

Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 70. cm3. If the combustion of this mixture releases 930. J of energy, to what volume will the gases expand against a constant pressure of 670. torr if all the energy of combustion ...
*March 25, 2011 by Samir*

**statistics**

according to the energy information administration (officially energy statics from the US Government) the mean price for one gallon of unleaded regular gas in the US cities for the year 2007 was 2.80 A random sample of 30 pumps in georgia yielded and average price of 284 per ...
*December 6, 2011 by jen*

**Chemistry**

The population of San Francisco is 750,000 in an area of 49 square miles. What is the population density in San Francisco? Express your answer in people per acre. ( 1mi(squared) = 640 acres ) 49 sq mi x (640 acres/1 sq mi) =?? acres. (Note that sq mi cancels leaving acres.) ...
*September 13, 2006 by Jamie*

**chemistry**

What is the density of propene gas measured at 2.5 atm and 47C? I know that I use the combine gas law, but I dont know how to find "n" in this particular problem. Please help ASAP!
*November 30, 2011 by Henry*

**Physics **

Why are the tires for trucks carrying gasoline and other ﬂammable ﬂuids manufactured to be electrically conducting? 1. To make the truck easier to drive 2. To move the positive charges from the truck to the ground and avoid ﬁre 3. To neutralize the charges...
*February 7, 2013 by Tiffany *

**algebra**

Jessica is baking a cake. The recipe says that she has to mix 96 grams of sugar to the flour. Jessica knows that 1 cup of this particular sugar has a mass of 128 grams. She added one over two of a cup of sugar to the flour. Should Jessica add more sugar to make the exact ...
*September 9, 2014 by Anonymous*

**Calc **

The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.1t ). What percentage of this brand of computer chips are expected to be usable after 6 years? (Round your answer to one decimal place.) ___ %
*July 18, 2012 by Jim *

**Math**

The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one decimal place.)
*April 5, 2014 by Vanessa*

**Math**

The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one decimal place.)
*April 6, 2014 by Vanessa*

**math**

The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one decimal place.)
*April 7, 2014 by vanessa*

**Math**

The percentage of a certain brand of computer chips that will fail after t years of use is estimated to be P(t) = 100(1 − e−0.12t ). What percentage of this brand of computer chips are expected to be usable after 3 years? (Round your answer to one decimal place.)
*April 7, 2014 by Vanessa*

**Chemistry**

Acid Question!? An unusual category of acids known as superacids, which are defined as any acid stronger than 100% sulfuric acid, can be prepared by seemingly simple reactions similar to the one below. In this example, the reaction of anhydrous HF with SbF5 produces the ...
*March 30, 2007 by Anonymous*

**Thank you Ann (kinematics)**

Thank you Ann! I had the equations and really was closing in on the answer... (stopping for 23 s is what really got me confused) in either case, the displacement for a) is 888 m ! Now I'll try to calculate (b). Thank you much! P.S. This is in response to my earlier physics (...
*January 31, 2007 by eric (new chem or physics prob. in)*

**physics**

If two marbles having mass of 27.7 grams and of 3.6 grams have stuck together where do they land and how much kinetic energy would be lost ?
*December 9, 2010 by Eduardo *

**Science**

1.If you have an object that has a mass of 8 grams and a volume of 4 cm3 , what is the objects density? 2g/cm3 2.A rock is found in nature with a mass of 36 grams. When using the water displacement method, the water level began at 30ml and rose to 36ml once the rock was put in...
*May 4, 2013 by Jerald*

**Science**

aluminum has a density of 2.7g/cm3 while copper has a density of 8.96g/cm3. Which metal would you choose to build a model airplane? why?
*September 16, 2014 by Brianna*

**Statistics**

Please help, need advise. Thanks A The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with = 110 grams and = 25 grams. What is the probability that a randomly selected vitamin will contain less than 100 grams of pyridoxine? ì ó B The amount of ...
*July 23, 2008 by Fiza*

**algEBRA word problem**

1 julies car travels 27 miles per gallon of gassoline used. she recently travedled 324 miles. how many gallons of gasoline did her car use? im learning about algebra multiplicaion property of equality and divsion property of equality would i write: i know i have to divide 324...
*October 18, 2011 by marko*

**7th grade**

a rectangular block measures 2cm * 1.5cm *1cm .the mass of the object is 31.5 grams .what is its density ?
*December 8, 2010 by Anonymous*

**physics**

Calculate the density of an object with a mass of 109 grams and a volume of 123 ml. (Round your answer to 3 digits.)
*June 13, 2011 by boo*

**Science**

What is the density of an object that has a mass of 550 grams and displaces 25 mL of water? Select all that apply -22mL/g -.04 mL/g -22 g/mL -22 g/cm 3
*July 26, 2011 by CoolCat333*

**science/math please help**

what is the density of an objects whose mass is 500 grams and displacs 250 ml of water?
*August 23, 2011 by anonymous*

**chemistry**

Find the volume in liters. 6.5kg of a substance with a density of 7.96g/mL Im confused about how it would come out in liters.. if the mass is in kg and the density is in g/mL
*March 5, 2011 by tammie*

**chemistry**

How many grams of mercury are formed from 47.0 of HgO? How many grams of oxygen are formed from 47.0 of HgO? How many grams of HgO would you need to obtain 34.1 of O2?
*February 7, 2012 by ASh*

**health insurance**

Suppose as a worker your health insurance currently allows you to buy whatever prescription drugs you wish for $2. Then in contract negotiations, it is changed to $10 for generic and $20 for brand name drugs. How would you react and economic analysis would you predict?
*May 6, 2009 by John*

**Chemistry**

A column of mercury in a barometer is 767.3 mm Hg high. Note, that in order for the pressures to be equal, density and height of a column are inversely proportional, therefore, (den1)(h1)=(den2)(h2). The density of mercury is 13.6 g/mL and the density of water is 1.00g/mL. a) ...
*April 16, 2014 by Carly*

**Chemistry: Dr. Bob, can you check my work?**

In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a total volume...
*November 15, 2012 by Zachary*

**chem**

Help a brother out!!! please!!!Nitroglycerin, C3H5N3O9 decomposes to form N2,CO2,H2O, and O2 4(C3H5N3O9)-> 6N2+12O2+10H20+O2 a)How many grams of water would be produced if 75g of nitroglycerin decompose? b)The creation of 3.89 moles of C02 would require how many grams of ...
*September 28, 2013 by bob*

**Physics**

Suppose you are drifting on a lake in a boat that measures 1 m high, 1 m wide, and 3 m long. The water level reaches halfway up the boat. 1. What is the volume of water that is displaced by the boat? (density of water = 1000 kg/m^3 or 1.00 g/cm^3). 2. What is the mass of the ...
*November 10, 2010 by Anonymous*

**L'Oreal**

Logo of L'Oreal is L'Oreal. Does it have a trademark? Is the slogan for this product - "Because you're worth it" And does L'Oreal mean anything? I have to answer the question that how do the logo, brand name, and slogan create the brand image? The Slogan is really powerful. It...
*June 6, 2011 by mary*

**ECONOMICS**

Thirty years ago, the market for chicken was perfectly competitive. Then, Frank Perdue started marketing chicken under his own 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 brand name chicken...
*April 13, 2013 by RAJA*

**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*

**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*

**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 230×1.015 t = 325. Use the ...
*August 14, 2010 by Sue*

**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*

**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**

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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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 air–fuel 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**

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*

**chemistry**

If you wanted to make a barometer that had a column of liquid about 6 feet tall, what would the density of the liquid have to be? 1 meter = 3.28 ft 1 inch = 2.54 cm Density Hg = 13.6 g/mL 1atm = 760 torr
*October 12, 2014 by jhon*

**physics**

If you wanted to make a barometer that had a column of liquid about 6 feet tall, what would the density of the liquid have to be? 1 meter = 3.28 ft 1 inch = 2.54 cm Density Hg = 13.6 g/mL 1atm = 760 torr
*October 12, 2014 by jhon*

**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*

**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*

**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*

**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 *

**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*

**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*

**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*

**Chemistry**

If you wanted to make a barometer that had a column of liquid about 6ft tall what would the density of the liquid have to be? 1meter=3.28ft 1in=2.54cm Density Hg=13.6g/ml 1atm=760torr
*October 12, 2014 by Ana*

**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 1.20×10^4 Pa, while in the region of blockage it is 1.15×10^4 Pa. ...
*November 12, 2008 by Andrea*

**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*

**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*

**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**

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*

**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*

**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*

**Science~!**

What would happen to a object if the force of gravity on earth was decreased by half? A. mass would decrease b. its weight would decrease c its density would decrease d. its volume will decrease A certain object has a volume of 25.0 mL and mass of 100g whats the density of the...
*December 10, 2014 by becky *

**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*

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