Chemistry

posted by .

A lead atom has a mass of 3.4x10^-9g. How many lead atoms are in a cube of lead that has a volume of 2.00cm^3 if the density of lead is 11.3g/cm^3?

  • Chemistry -

    Mass = volume x density
    Solve for mass.

    3.4E-9 g/atom x # atoms = mass
    Solve for # atoms.

  • Chemistry -

    Thank you!!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Lead is often found in Earth's crust as several lead compounds. Calculate the mass in kilograms of the amount of each of the following lead compounds that contains 4500kg of lead. 1)PbCO3 (cerussite) 2) PbSO4(anglesite)
  2. Chemistry

    A lead atom has a mass of 3.40×10−22 g. How many lead atoms are in a cube of lead that has a volume of 1.40 cm^3 if the density of lead is 11.3 g/cm^3?
  3. physics

    Lead is a very dense substance. 12 cm^3 of lead has a mass of 136.8g. Wgat is the density of the lead?
  4. Chemistry

    An estimation of the radius of a lead atom: a. You are given a cube of lead that is 1.000 em on each side. The density of lead is 11.35 g/cm3. How many atoms of lead are contained in the sample. b. Atoms are spherical; therefore, the …
  5. physics

    A cube of lead measuring 1 meter on each side is thrown into the ocean. Determine the buoyant force acting on this mass of lead. The density of lead is 11.4 grams/ cubic centimeter
  6. Science

    Michael dropped a 1 inch cube of wood and a 1 inch cube of laed into an aquarium filled with water.The cube of wood floated and the cube of lead sunk quicklu to the bottom. The cube wood floated because it A.is less dense than the …
  7. physics

    Equal 0.400-kg mass of lead and tin at 60 degrees celsius are placed in 1kg of water at 20 degrees celsius. a) what is the equilibrium temperature of the system?
  8. chem

    A lead atom has a mass of 3.4⋅10^-22 g. How many lead atoms are in a cube of lead that has a volume of 2.07 cm^3 if the density of lead is 11.3 g/cm^3?
  9. physics

    A sample of lead has a mass of 69.00 kg and a density of 1.130 104 kg/m3 at 0°C. (Assume the average linear expansion coefficient for lead is 2.900 10-5(°C−1).) (a) What is the density of lead at 80.00°C?
  10. Physics-science

    A block of wood has a mass of 3.6kg and specific gravity of 0.6. It is to be loaded with lead of density of 11300 kg per cubic metre so that it floats in water with 0.90 of its volume immersed. What mass of lead is needed?

More Similar Questions