Yield Definition and 222 Threads

  1. G

    Find theoretical yield from a balanced equation

    I searched and wasn't able to find what I was looking for. I need to find the theoretical yield so I can find the percent yield, which I know how do to. I just can't remember how to find theoretical yield from a balanced equation. My equation which I believe to be correct is...
  2. L

    Yield strength variation with temperature

    anyone can help me out by providing the mathematical relationship between yield strength and temperature
  3. J

    Please yield me some recommendations

    Hello My name is nathan. Senior in high school. Heartly want to be a physicist. and searching for a college with good undergrad physics programs that will satisfy me the most, but I truly need some recommendations. well, first of all I think it is my duty to introduce myself before...
  4. L

    Finding yield stress with only modulus of elasticity and Poisson's ratio?

    Is it possible to find the yield stress of a material with only modulus of elasticity and Poisson's ratio? I was given a problem that: What is the min. aluminum needed to support a block (10 Newton) to 1 meter high? E=70GPa and v=0.3 are the only given aluminum properties. I would know...
  5. Ivan Seeking

    News The power that we yield to the President

    As for the current debate over the power that the executive branch should enjoy, this is surely one of the great balancing acts in American politics. As we know, in principle, all three branches of government are equal - they share power. Of course the problem is, what do we consider to be...
  6. H

    Mass of Steam Needed for 1kg of Ice to Yield 20°C Water

    what mass of steam at 100 c must be added to 1.ookg of ice to yeild liquid water 20c ? this is what I have so for c*m* displacement of temperature =m *L
  7. A

    Find the yield strength for an elastomer

    Hey, Just wondering, how would you find the yield strength for an elastomer just from the engineering stress-strain curve. My professor said its complix and different books have different ways of finding it. Any ideas?
  8. S

    Factor(s) that affect percent yield

    Hi everyone, For a science lab, I am asked to find the following: What factor(s) affect percent yield in a reaction which produces calcium carbonate? We are given a selection of chemicals to use to get the CaCl_2 but I have chosen the following: CaCl_2 + Na_2CO_3 --> CaCO_3 + 2NaCl...
  9. S

    Stoichiometry, Part II (and Percentage Yield)

    Please (pretty please) check all of my work! 1) In an oxidation reaction, ethanol (C2H5OH) is converted to a ethanoic acid (C2H4O2) with a percentage yield of 70%. If you start the reaction with 360g of ethanol, how many grams of ethanoic acid would you expect to produce? Stoichiometry is...
  10. Pengwuino

    Calculating F2 Needed to Produce 120 g of PF3

    Ok so this problem pissed me off to no end... basically because ih ad 5 minutes to do it and couldn't figure it out. Now, i divided the 120g by the molar mass of PF3 and divided by .846 to find the actual amount necessary which gave me 1.612449659 moles. Multply that by the molar mass of F2...
  11. L

    Chemical formula and thoretical/percent yield.

    2 ml of 15M Nitric acid was added to copper bromide(CuBr) and gently heated until a black substance was formed, copper oxide(CuO), and was completely dry. There was .93g of CuO formed in the reaction. The CuO was formed from the decomposition of the copper nitrate produced by the reaction of...
  12. J

    Meaning of yield function in elastoplasticity

    i'd like to know if it's possible what the meaning of yield function in elastoplasticity. Also what is the concept of inelastic potential i'll be thankful if someone can help me
  13. T

    The yield of fruit juice from water based fruits compared to

    the yield of fruit juice from water based fruits compared to... please help me to find a comparison experiment to find the yield of fruit juice between to types of fruit 1 containing more water than the other. thanx in advance :confused:
  14. S

    Find the Yield Rate of Two Bonds with Same Maturity & Coupon Rate

    "One bond, with a face value of 1000 dollars and annual coupons at a rate of 7.2 percent effective, has a price of 1001.99 dollars. A second bond, with a face value of 1000 dollars and annual coupons at a rate of 6 percent effective, has a price of 882.83 dollars. Both bonds are redeemable at...
  15. J

    Alternate to standard tensile for determining young's modulus & yield

    Hi All, I have been working on a product development project and have run into a snag that I was hoping I could get some advice on. We need to determine the mechanical properties of a thin-walled nickel tube. Specifically young's modulus and yield strength. The current wall thickness...
  16. T

    Yield Strength of Metal Plate: Rolling, Heating, and Cooling

    Can someone help me explain how a plate of metal's yield strength changes as it is 1) Rolled (flattened) then 2) Heated for some hours and cooled, and then finally 3) Cooled and rolled additionally. Does the yield strength increase at first, then drop, and then increase again? That's what I...
  17. A

    Maximizing Experiment Yield: What Factors Matter?

    How can you improve the percent yield of an experiment? I'm not even sure what affects the percent yield. Please help.
  18. P

    Max Total Yield: Plant 37-38 Apple Trees

    .. an orchard owner has maintained records that show that if 25 appl trees are planted in one acre then each tree yields an aveerage of 500 apples. The yield decreases by 10 apples per tree for each additional tree that is planted. How many trees should be planted for max total yield? The...
  19. S

    String Gravitons yield GR. NOT

    This paper does a lot of testing of different kinds, and concludes that the string theorists assertion that the graviton reproduces the physics of GR in flat spacetime is a myth.
  20. K

    Can Spin 2 Bosons Explain Particle Masses and Dark Energy?

    Would a massless spin 2 boson traveling at light speed collide with a fermion to yield particle-antiparticle pairs (if the spin 2 was a graviton the particles would have to have a very small mass so far undetected by science)? Could this spin 2 boson be electromagnetic in nature? Could a...
  21. C

    How do you calculate mass yield of a solution?

    Just a few questions I have and I cannot seem to find any good explanations in the book: 1) How do you calculate mass yield of a solution? 2) How do you calculate the number of moles used in a titration? Any help is greatly appreciated.
  22. marcus

    What is the maximum iron core mass of a star before collapse?

    fire.biol.wwu.edu/trent/alles/Origin_of_Elements.pdf In this source Alles gives a detailed description of the mechanism underlying Type Ia supernovas----so that one sees why they always release about the same amount of energy and can be used as standard candles for measuring distance. But he...
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