Number of results: 7,018
Math
If the linear ratio is 1:n, the ratio of areas is 1:n², and the ratio of volumes is 1:n³ Can you now make your choice again?
Sunday, September 6, 2009 at 2:23pm by MathMate
geometry
01:34:47 The volumes of two spheres are 729 in3 and 27 in3. What is the ratio of their radii, rounded to the nearest whole number?
Saturday, October 20, 2012 at 2:38pm by Anonymous
chemistry
C2H4(g)+CO2(g)+H2O(g) interpret the equation in terms of relative numbers of moles,volumes of gas at STP,and masses of reactants and products.
Monday, March 5, 2012 at 7:30pm by la la
CHEMISTRY
Dr BOB can you explain this to me. I am so struggling with this subject. during a typical breathing cycle the CO2 concentration in the expired air rises to a peak of 4.6% by volume. Calculate the partial pressure of the CO2 at this point, assuming 1 bar of pressure. what is ...
Thursday, October 14, 2010 at 11:55pm by lulu78
CALC 2 - Partial Functions!!
How do I solve Integral of 7/(16-x^2) I know I must break down (16-x^2) into (x+4)(-x+4), but after I do that what is next? Using the method of partial fractions, convince yourself that 7/(16-x^2)= (7/8)*[1/(4+x) + 1/(4-x)] The two additive terms can be integrated by the ...
Wednesday, June 13, 2007 at 1:06am by Ace
Chemistry
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 10.4-g sample of CaCl2 is dissolved in 102 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and ...
Thursday, April 18, 2013 at 11:51pm by Mike
Chemistry
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 12.4 g sample of CaCl2 is dissolved in 100. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and ...
Sunday, November 13, 2011 at 4:03pm by Bill
chemistry
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.0 g sample of CaCl2 is dissolved in 134 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and ...
Sunday, November 13, 2011 at 2:20pm by william
Chemisrtry
What is the PH of a solution that results from mixing together equal volumes of a 0.150 M Solution of acetic acid and a 0.0750 M solution of sodium hydroxide?
Tuesday, March 30, 2010 at 4:58pm by Ginger29
physics hw need help
It is not certain to me what the measurement of angles is, and the impact of counterclockwise. It matters. I assume the displacement was 90+130=220deg . Assuming the other direction would have been 140 deg. Assuming 220 deg, then 220deg/360deg * 2PI=1/2 angacc*time solve for ...
Wednesday, July 14, 2010 at 10:25pm by bobpursley
Math
http://math.com/tables/geometry/volumes.htm http://math.about.com/od/formulas/ss/surfaceareavol.htm
Friday, March 12, 2010 at 9:50pm by Ms. Sue
Calc 3 PLEASE HELP!!!!
Find the maximum and minimum volumes of a rectangular box whose surface area is 1300 cm2 and whose total edge length is 200 cm.
Thursday, October 4, 2012 at 7:57pm by Becky
Chemistry
CaCl2(s) Ca2+(aq) + 2 Cl-(aq) H = -81.5 kJ A 14.0 g sample of CaCl2 is dissolved in 130. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat ...
Saturday, November 10, 2007 at 10:08am by Joe
9th grade alegbra
two volumes one is 8 the other 125, the surface are is 4, what is the other surface area
Tuesday, January 11, 2011 at 10:09am by mark
chemistry
If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?
Thursday, November 4, 2010 at 3:44pm by MaryB
chemistry
If you have 137.8 mL of a 38.4% aqueous solution of ethanol, what volumes of ethanol and water are in the solution?
Thursday, November 4, 2010 at 12:54pm by MaryBeth
Geometry
The scale factor of two similar solids is 7:5. 8) Find the ratio of volumes. 9) Find the ratio of surface areas.
Thursday, April 14, 2011 at 8:52pm by Need Help
Areas and volumes
The base of a pyramid is a right triangle. The legs of the triangle measure 6 in and the altitude of the pyramid is 5 in. Find the volume.
Thursday, June 3, 2010 at 12:45pm by Ariel
7th Grade Math
Volumes are (linear ratio)³ and areas are (linear ratio)²
Monday, May 20, 2013 at 7:21pm by MathMate
Physics
A satellite of mass 220 kg is launched from a site on Earth's equator into an orbit at 200 km above the surface of Earth. (a) Assuming a circular orbit, what is the orbital period of this satellite? 5310 s (b) What is the satellite's speed in its orbit? 7790m/s (c) ...
Saturday, March 13, 2010 at 8:28pm by Ana
chemistry
225 mg sample of diprotic acid is dissolved in enough water to make 250mL solution.the pH of this solution is 2.06. a saturated solution of calcium hydroxide Ksp=1.6E-6 Then the saturated solution of calcium hydroxide is prepared by adding excess calcium hydroxide to pure ...
Sunday, March 2, 2008 at 2:09pm by timmathy
Physics
A satellite of mass 210 kg is launched from a site on Earth's equator into an orbit at 210 km above the surface of Earth. (a) Assuming a circular orbit, what is the orbital period of this satellite? (b) What is the satellite's speed in its orbit? (c) What is the ...
Wednesday, November 24, 2010 at 2:08pm by tom
College Chemistry
Yes, but if both volumes are 19.80 mL you know the average will be 19.80.
Friday, September 28, 2012 at 7:30pm by DrBob222
Algebra
All volumes are length x (base area) The base area formulas are different.
Saturday, March 31, 2012 at 1:46am by drwls
QUESTION
why are the volumes the same
Friday, October 23, 2009 at 5:20pm by QUESTION
math-computer
Please help me do this question!!!!! (C): 116.98GB Assuming a disk should never get more than 85% full, and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk to this PC? How long until you have to add more storage ...
Thursday, July 22, 2010 at 8:27pm by jenni
Math
since the boxes may be oriented so that each dimension of the space is divisible by a dimension of the boxes, we can just divide the volumes: 15*9*24 / 3*2*.5 = 1080
Friday, March 29, 2013 at 11:28pm by Steve
Geometry
the ratio of the volumes of two similar shapes is proportional to the cubes of their corresponding sides. so ?^3/?^3 = 64/27 ratio of sides must be 4 : 3
Tuesday, April 26, 2011 at 10:52pm by Reiny
chemistry
When dealing with gases one may dispense with changing everything to moles. Volumes are proportional. 8 L C3H8 x ((4 moles H2O/1 mole C3H8) = 8 x (4/1) = ??
Wednesday, July 14, 2010 at 12:04pm by DrBob222
Chemistry
A shiny gold colored car of metal weighting 57.3g has a volumes of 4.7cm^3. Is the bar of metal pure gold?
Thursday, September 20, 2007 at 9:06pm by Charles
science
Metal foils such as aluminum have a higher density than water. By "wadding it up" you prevent there being any empty volumes inside to give it buoyancy. The denser material (the foil) sinks to the bottom.
Saturday, July 7, 2012 at 5:51pm by drwls
Chemistry
A 119.2mL sample of 0.105M methylamine (CH3NH2, Kb=3.7*10^-4) is titrated with 0.255M HNO3. Calculate the after the addition of each of the following volumes of acid. 49.1mL and 73.6mL. Please help.
Sunday, February 6, 2011 at 7:23pm by Melissa
chemistry
which of the following gasses will have the largest volume ( all volumes are measured at the same temperature and pressure) A) 16g of CH4 B) 34g of NH3 C) 44g of co2 D) 64g of SO2 i think the answer is C am i right
Tuesday, November 3, 2009 at 2:49pm by lila
Chemistry
In terms of a buffer solution, can one exist with a strong acid and of weak base in equal volumes but different molarities? e.g. 0.1 HCl and 0.2 NH3? I found this to be the case but still can't find a logical reasoning behind it.
Monday, September 3, 2007 at 2:27am by Vic
Calculus
If f(x) is continuous (on ℝ), then f(2) must exist. Also, it is known that polynomials are continuous on ℝ. Within these constraints, limits are additive, so Lim x->2 f(x)+4x =Lim x->2 f(x) + Lim x->2 4x =f(2) + 4(2) =f(2) + 8, as you ...
Sunday, February 13, 2011 at 3:09pm by MathMate
Chemistry
Determine the volumes of 1 M acetic acid and 1 M NaOH required to make a 200mL 0.1 M buffer with a pH of 5.5. (Assume the pKa of acetic acid is 4.76).
Sunday, January 15, 2012 at 12:26pm by Rachel
Chem!!
Consider the dissolution of CaCl2: CaCl2(s) -----------> Ca2+(aq) + 2Cl-(aq) ΔH=-81.5 kJ/mol An 11.0 gram sample of CaCl2 is dissolved in 125 g water with both substances at 25.0 °C. Calculate the final temperature of the solution assuming the solution has ...
Wednesday, November 2, 2011 at 9:05pm by Bob
calculus
find the volume of the prolate spheroid (a solid of revolution in the shape of a football ) obtained by revolving the region under the graph of the function y=3/5 √25-x^2 from x= -5 to x=5 about the x-axis...
Saturday, March 3, 2012 at 5:07am by volumes of solids of revolution
chemistry
In a coffee-cup calorimeter, 1.91 g of NH4NO3 is mixed with 75.0 g of water at an initial temperature of 25.00oC. After the solution of the salt, the final temperature was 20.94oC. Assuming the solution has a heat capacity of 4.18 J/(goC) and assuming no heat loss to the ...
Tuesday, October 9, 2012 at 5:36pm by Shawn
Chemistry
What volumes of 0.46 M HNO2 and 0.54 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.40? a) HNO2 b) NaNO2 answer in L
Sunday, December 5, 2010 at 3:24pm by justin
maths
assuming x>3, x+1 > 0 x > -1 so, any x>3 is a solution assuming x<3, x+1 < 0 x < -1 so any x < -1 is also a solution The entire solution set is thus (-∞,-1)U(3,∞) Extra credit: why did we have to ...
Monday, April 15, 2013 at 3:55pm by Steve
Chem
A vessel of 6.84 L in volume contains 3.61 L of pure water at 25°C. A partial pressure of 3.67 atm of CO2 is quickly injected into the space above the water. Calculate the partial pressure of carbon dioxide remaining once the solution has become saturated with the gas. ...
Sunday, February 4, 2007 at 10:54am by Jill
Agebra 1
by the same token, do you expect these volunteer tutors to be up all night ? Students posting here come from the west to the east coast of the US and Canada, and I have even answered questions from students from Britain, Australia and New Zealand. As to your question, there is...
Tuesday, October 6, 2009 at 3:46am by Reiny
MATH HELP ME 1st
Isn't it the additive identity? http://en.wikipedia.org/wiki/Additive_identity
Tuesday, November 16, 2010 at 7:21pm by bobpursley
CHEMISTRY
Dr BOB can you explain this to me. I am so struggling with this subject. NO one has helped me on this one yet can anyone help me? during a typical breathing cycle the CO2 concentration in the expired air rises to a peak of 4.6% by volume. Calculate the partial pressure of the...
Friday, October 15, 2010 at 10:27pm by lulu78
Chemistry
mass=35.64 g volumes = 3.39 ml use Density = mass/volume but I think you can see which metal it is with out calculating the density.
Monday, October 12, 2009 at 2:03am by Dr Russ
Chemistry
In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.71°C. Assuming the solution has a heat capacity of 4.18 J/°C &...
Monday, July 11, 2011 at 1:15pm by Brittney
Cost accounting
Cost behavior and classification: Factory supervision, Aluminum tubing, Rims,Emblem, Gearbox, Straight-line depreciation on paint machine,Fenders, Inventory clerk’s salary, Inspector’s salary, Handlebars, Metal worker’s wages, Roller chain, Spokes (assuming cost...
Sunday, September 20, 2009 at 4:49pm by Danny
Reading
Why does Douglass think the songs that slaves sing on their way to the Great House Farm "would do more to impress some minds with the horrible character of slavery, than the reading of whole volumes of philosophy on the subject could do?"
Wednesday, April 3, 2013 at 8:08pm by Jees
chemistry
What is the mass of the organic product between 2M solution of cyclohexene and 45% solution of potassium permanganate? The volumes of the solutions are the same and equal to 45mL. All needed densities are approximated to 1g/cm3.
Wednesday, April 13, 2011 at 10:18am by jls9119
Income tax / Accounting
Computation of taxable income: The following information for 2009 relates to Tom, a single taxpayer, age 18. Salary $1,800 Intrest income $1,600 Itemized deductions $ 600 A. Compute Tom's taxable income assuming he is self-supporting B. Compute Toms's taxable income ...
Friday, October 1, 2010 at 1:53pm by austin
ACC233- INCOME TAX
Computation of taxable income: The following information for 2009 relates to Tom, a single taxpayer, age 18. Salary $1,800 Intrest income $1,600 Itemized deductions $ 600 A. Compute Tom's taxable income assuming he is self-supporting B. Compute Toms's taxable income ...
Thursday, September 30, 2010 at 2:10pm by austin
chemistry urgent
what volume in liters of gaseous hydrogen chloride can be prepared from 40.0 liters of hydrogen with an exces of chlorine? all volumes are measured at STP: H + Cl -> HCl
Tuesday, November 30, 2010 at 4:50pm by lianne
math
the volumes of similar shapes is proportional to the cubes of the corresponding heights. So the small pyramid cut off at the top is to the whole pyramid in the ratio of 1 : 8 So the bottom part is 7/8 of the whole or 87.5%
Wednesday, August 11, 2010 at 5:31pm by Reiny
volumes of prisms
How do the volume of prisms compare as the number of faces in the prisms increases? Does the volume remain the same? Explain Please!
Sunday, April 7, 2013 at 2:42pm by Greg
math
To find the volumes, multiply the length times the width times the height. 12 * 12 * 12 = 1728 cubic feet
Thursday, November 17, 2011 at 8:24pm by Ms. Sue
biology
__________________ charcters show many degrees of variation because they result from the additive effects of several ____________. Many human conditions are complex because they are influenced both by ___________ and by ___________. If two genes cross oveer 35 percent of the ...
Sunday, January 24, 2010 at 10:05pm by brooke
Business
Sales of a product are influenced by the salesperson’s level of education and gender, as well as consumer income, ethnicity, and wealth. a. Formulate this statement as a multiple regression model (form only, without parameter estimation). b. Specify dummy variables. c. If...
Monday, June 21, 2010 at 8:22pm by Anonymous
Science
Watter has less mass, since sand does not float. That implies sand has a higher density than water. For equal volumes, the sand has more mass.
Tuesday, October 9, 2007 at 7:40pm by drwls
Chemistry
Burning an empty Styrofoam container results in volumes of black sooty flames. On the basis of this observation alone, to what class of hydrocarbons would you suspect a component of the polystyrene polymer found in Styrofoam belongs? Explain.
Wednesday, February 13, 2013 at 6:41pm by Morgan
Chemistry
Burning an empty Styrofoam container results in volumes of black sooty flames. On the basis of this observation alone, to what class of hydrocarbons would you suspect a component of the polystyrene polymer found in Styrofoam belongs? Explain.
Wednesday, February 8, 2012 at 12:53am by Morgan
Chemistry
It depends upon how much you want to make up; e.g., a cup, a liter, a tub? In general, a 0.2%(w/v) solution can be made by dissolving 0.2 g (200 mg) of the solute in 100 mL of solution. For other volumes, just change the numbers.
Monday, January 5, 2009 at 9:13pm by DrBob222
Physics
A projectile is fired up into the air at a speed of 164 m/s at an angle of 37° relative to the horizontal. Ignore air drag. A.) Determine the MAXIMUM HEIGHT (above where it was thrown) the projectile will reach. m B.) Determine how LONG the projectile will be in the air. ...
Thursday, September 6, 2012 at 3:14pm by Cindy
thermodynamic
Calculate the work necessary to compress air in an isolated cylinder with initial and final volumes of 6.0 and 1.2 ft^3, respectively. The initial pressure and temperature are 30.0 psia and 50 degree F, respectively.
Saturday, January 15, 2011 at 10:56pm by chris
calculus
a rectangular piece of cardboard that measures 4 by 3 inches is to be formed into a rectangular box by cutting squares with length x from each corner and folding up sides. Find the volumes of the box in terms of x
Friday, October 16, 2009 at 9:48am by Amber
Chemistry
I understand that I already did the lab... these are the results from the lab.... I did two trial I am having trouble finding the volume of O2 STP and the mole STP what do I use to figure out those volumes
Wednesday, October 17, 2007 at 9:41pm by Taylor
chemistry
Ethanol, C2H5OH, is being promoted as a clean fuel and is used as an additive in many gasoline mixtures. Calculate the ΔH°rxn for the combustion of ethanol. ΔH°f [C2H5OH(l)] = -277.7 kJ/mol; ΔH°f [CO2(g)] = -393.5 kJ/mol; ΔH°...
Sunday, March 10, 2013 at 9:21pm by Anonymous
physics
A 1,500-kg car traveling east with a speed of 25.0 m/s collides at an intersection with a 2,500-kg van traveling north at a speed of 20.0 m/s. Find the direction and magnitude of the velocity of the wreckage after the collision, assuming that the vehicles undergo a perfectly ...
Tuesday, August 28, 2012 at 1:41pm by zianna
calculus
assuming you want to use an "easily" calculatable value, let's approximate assuming we know the value of ln(1000). the slope of the tangent at any point (x,y) on the curve is m = 1/x so, at x=1000, the slope is 1/1000. Thus, we are using the line through (1000,...
Monday, November 19, 2012 at 10:25pm by Steve
Algebra
56/(56+x) = 70/100 silver/(silver + additive) silver / total weight is 70% or 70/100 56/(56+x) = .7 Cross multiply and solve for x
Thursday, February 21, 2013 at 7:09pm by JJ
Chemistry
Sorry, I forgot the question. For the following volumes of NaOH added, list the major species present after the OH - reacts completely. I feel like I'm always missing something. For example, I thought (ii) was H2A HA- OH - and H2O,but it was wrong
Friday, March 8, 2013 at 12:13am by Franklin
chemistry-URGENT!!
I presume you mean ammonia Use P1V1/T1=P2V2/T2 You can leave the volumes as L and pressures as torr, but you need to use kelvin for the temperatures. PS - thank you for correctly using celsius (lower case c)
Wednesday, December 8, 2010 at 7:49am by Dr Russ
Calc2
Find the volumes of the solids generated by revovling the region in the first quadrant bounded by the curve x=4y-4y^3 and the y-axis about the given axes: a. the x-axis b. the line y=1 NO idea how to set it up!!! HElP!!
Sunday, September 9, 2012 at 10:55pm by Anonymous
physics
a) Find the maximum rate of deceleration of a car on a dry, level road, assuming the coefficient of static friction between tires and pavement equals 1.4. (b) Find the minimum stopping distance if the car has an initial speed of 27.5 m/s. (c) Repeat parts (a) and (b) assuming ...
Tuesday, February 8, 2011 at 10:55am by Anonymous
Cost of Accounting
What is the classification of the Cost behavior and classification: Factory supervision, Aluminum tubing, Rims,Emblem, Gearbox, Straight-line depreciation on paint machine,Fenders, Inventory clerk’s salary, Inspector’s salary, Handlebars, Metal worker’s wages, ...
Wednesday, September 23, 2009 at 6:56am by Josephine
chemistry
Hi! i'm kinda having trouble getting this.. Don't understand it really from Ca(OH)2 + 2HCl-----> CaCl2 + 2H2O How do i calculate Ca+? :You need much more information. 1) do you mean the concentration of Ca+ ion? 2) is there excess HCl? What is given? ok It was ...
Saturday, March 3, 2007 at 2:35pm by Mallory
finance
Assume that the export price of a Nissan XTerra from Osaka, Japan is ¥3,750,000. The exchange rate is ¥121.84/$. The forecast rate of inflation in the United States is 2.8% per year and is 0.6% in Japan. a. What is the export price of the XTerra at the beginning of the...
Thursday, May 5, 2011 at 8:13pm by Sara
Chemistry
For a, to calculate it you have to have the concentrations at equilibrium. If you are supposed to look it up, you need the temp. for b, there are 2 volumes on the left, 4 on the right. So increasing volume tends a shift to the right. for c, The equibrium constant wont change.
Sunday, May 17, 2009 at 4:51pm by bobpursley
Chemistry
n = PV/RT You do not know the volumes of the tires except that they are all the same. "V = 1" (an arbitrary unit of volume) cannot give you a specific number of moles or number of molecules. However how do the numbers of molecules for each gas compare to each other?
Wednesday, November 12, 2008 at 9:14pm by GK
biochemistry
base is not 0.1 and acid is not 0.1. Isn't the base 4 volumes x 0.1 = 0.4 moles; therefore, the concn is 0.4 moles/volume (whatever that is but it doesn't matter because the acid will be divided by the same V and V will cancel).
Friday, January 21, 2011 at 7:32pm by DrBob222
Chemistry
What do you think about the temperatures of the air in the balloons? Are they the same or different? If they are different, what effect do you think the temperatures would have on the volumes?
Tuesday, May 26, 2009 at 9:43pm by PC
CHEM URGENT!!
the ratio of volumes is the cube of the length ratio: (2.63)^3 = 18.19 18.19 * 25.68 = 467.2 g
Friday, January 16, 2009 at 3:39am by Damon
Physics
Add 2.86 + 0.09 and calculate volume. Subtract 2.86 - 0.09 and calculate voluem. The uncertainty is the difference in the two volumes.
Wednesday, August 22, 2007 at 1:02am by DrBob222
Physics
Suppose equal volumes of iron and water interact thermally. Which will change temperature more? If they are initially 30 Celsius degrees apart in temperature, how much will the temperature of each change? Explain your reasoning. Thanks!
Tuesday, March 1, 2011 at 8:27pm by A
Chemistry
What volumes of 0.47 M HF and 0.47 M NaF must be mixed to prepare 1.00 L of a solution buffered at pH = 3.50? HF NaF
Wednesday, March 13, 2013 at 2:54am by Margaret
science
measure some water in a graduated cyclinder. Drop the marbles in. Measure the new water level. The difference in volumes is the volumeof the marbles.
Saturday, August 30, 2008 at 3:54pm by bobpursley
Chemistry
A 50.0 mL sample of 0.10 M pyridine, C5H5N, is titrated with 0.2 M HBr. Calculate the pH to one decimal place when the following volumes of titrant have been added. 0.00 mL a) 0ml b)17ml c)25ml d)40ml
Thursday, March 7, 2013 at 8:03pm by Katie
SCIENCE/CHEM
the volume of a sample of gas is 650.ml at STP. what volumes will the sample occupy at 0.0degrees celsius and 950.torr??? is it 650.ml?
Wednesday, May 12, 2010 at 9:17pm by Andy
CHEMISTRY
Whats the pH of the solution which can be prepared by mixing same volumes of 0.5% NH4Cl and 0.25% KOH ? (K=1.8 * 10^-5) M(NH4Cl) 53.5 g/mol M(KOH)=56g/mol
Tuesday, February 12, 2013 at 2:36pm by Anonymous
physics
What is the cube root of 64? You won't need decimals. It is an integer. The ratio of corresponding linear dimensions of similarly shaped volumes is the cube root of the volume ratio.
Saturday, December 11, 2010 at 4:03pm by drwls
Algebra
think of it as a function f(k) = (k+6)^2 , and consecutive integers only are used for k starting with k = 1. The results obtained are then added. so I am assuming you have (1+6)^2 + (2+6)^2 + (3+6)^2 + (4+6)^2 = 49 + 64 + 81 + 100 = .... I am assuming the 4 was written above ...
Saturday, April 6, 2013 at 1:54pm by Reiny
geometry
volume of the full tank = (9)(22)(7) ft^3 volume at 5 ft high = (9)(22)(5) subtract the two volumes
Tuesday, March 2, 2010 at 7:37pm by Reiny
physics
gold and silver have densities of 19.3 and 10.5 grams per cubic centimer, respectively. If you have eual volumes of each, which one will have the larger mass? I am thinking the gold. how do i prove it? Thank you
Sunday, April 24, 2011 at 6:28pm by Loui
Chemistry
Very small crystals composed of 1000 to 100,000 atoms, called quantum dots, are being investigated for use in electronic devices. (a) Calculate the mass in grams of a quantum dot consisting of 1.400 104 atoms of silicon. (b) Assuming that the silicon in the dot has a density ...
Tuesday, June 1, 2010 at 1:48am by Anita
Solid Mensuration
Two similar cones have volumes 81pi/2 in^3 and 12pi in^3 and slant height of the bigger cone is 7.5 in. Find the integer solution to the height of the similar cone.
Friday, March 2, 2012 at 5:27am by Paul
Solid Mensuration
Two similar cones have volumes 81pi/2 in^3 and 12pi in^3 and slant height of the bigger cone is 7.5 in. Find the integer solution to the height of the similar cone.
Friday, March 2, 2012 at 5:26am by Paul
Analytical Chemistry
Consider the titration of 100.0 mL 0.1 M KOH with 1.0 M HBr. Find the pH at the following volumes of acid (Va) added: Va= 0, 1, 10 and 10.1 mL.
Saturday, November 26, 2011 at 4:36pm by Remy
Science Math
7. Calculate the difference in the lung volumes of a male athlete who is 62 inches tall and a female athlete who is 56 inches tall. Show your work. (2 points)
Friday, October 14, 2011 at 1:19pm by George
chemistry
The acetic acid/NaOH problem is not worked correctly. You can't add the volumes. Each neutralize each other. Try again. The second problem, the one for Kb is worked correctly.
Tuesday, April 15, 2008 at 4:55pm by DrBob222
Algebra
The edge of one cube is 5cm shorter than the edge of a second cube. The volumes of the two cubes differ by 875cm^3. Find the edge of the smaller cube.
Tuesday, January 29, 2013 at 6:01pm by Penny
Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>
For Further Reading
