Post a New Question

logan high school

posted by .

The density of copper is 8.95g/cm3 and the density of zinc is 7.14 g/cm3, A sample of a Cu-Zn is 80.5 percent Cu and 19.5 percent Zn What is the density of the alloy?

  • logan high school (science) -

    They probably expect you to compute a "weighted mean" density that is 80.5% of the copper density PLUS 19.5% of the zinc density. However, in the real world, a slightly different value is possible. The intramolecular forces and atom spacing in alloys of metals that dissolve in one another, as in this case, can behave in strange ways.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Earth Science

    A student finds the density of an ice cube to be 0.80g/cm3; it is actually 0.90 g/cm3. What is the percent deviation (percent error) in this calculation?
  2. Dobson

    a)The element with the greatest density is osmium, which has a density of 22.6g/cm3. Calculate the mass of 32.1 cm3 of osmium. b)A team of students determined the density of a sample of wood to be 0.52 g/cm3. A handbook of chemistry …
  3. Chemistry

    a) The element with the greatest density is osmium, which has a density of 22.6g/cm3. calculate the mass of 32.1 cm3 of osmium. Answer: 22.6g x 32.1 = 725.46 Did I have right answer?
  4. chemistry

    Sterling silver, an alloy of silver and copper, contains 7.5 percent copper by mass and has a density of 10.3 g/cm3. How many copper atoms are in a sterling silver sphere whose radius is 2.0 in?
  5. Chemistry

    A homogenous mixture of metals is called an alloy. An alloy is found to be 30% by volume gold with the rest being aluminum. Aluminum has a density of 2.70 g/cm³. Gold has a density of 13.1 g/cm³. If a piece of alloy contains 3.70 …
  6. 8th grade science

    The densities of four different woods are shown below. Wood Sample Densities Type of wood: African Teakwood Density(g/cm3) 0.98 Type of wood: Balsa Density(g/cm3) 0.14 Type of wood: Cedar Density(g/cm3) 0.55 Type of wood: Ironwood …
  7. Chemistry;HELP

    Use the 5-step method and be sure to include units where appropriate. Round your answers to the correct number of significant digits. Mass m Density = -------------- or D = ------- Volume v Adjust the density formula and solve the …
  8. Chemistry;HELP

    Use the 5-step method and be sure to include units where appropriate. Round your answers to the correct number of significant digits. Mass m Density = -------------- or D = ------ Volume v Adjust the density formula and solve the problems …
  9. 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?
  10. natural science

    What volume of copper ( density 8.96 g/cm3 ) would be needed to balance a 1.15 cm3 sample of lead ( density 11.4 g/cm3 ) on a two-pan laboratory balance?

More Similar Questions

Post a New Question