HELP!! Chemistry

1. Calculate the density of a material that has a mass of 52.497 g and a volume of 18.5 cm3.


2. A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?


3. If 130.943 g of a liquid occupy a space of 135.0 ml, what is the density of the liquid in g/cm3?

asked by _Unknown
  1. (:

    posted by Anonymous
  2. 1. d= 52.497 g / 18.5 cm^3 = 2.84 g/cm^3

    2. d= 139.943 g / 29.7 cm^3 = 4.71 g/cm^3

    3. d= 130.943 g/ 135.0 mL = 0.969 mL or .970 mL

    posted by (: from Las Vegas
  3. mass=20g
    Volume=40ml

    posted by Mass

Respond to this Question

First Name

Your Answer

Similar Questions

  1. chemistry

    A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?
  2. j

    . A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 22.7 cm3, and the mass in 39.943 g. What is the density of the rock? Round to the nearest tenth place (answer should
  3. 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
  4. physical science

    If the mass of a material is 99 grams and the volume of the material is 22 cm3, what would the density of the material be? (in g/cm3) i don't know how to find the answer.
  5. Science

    What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3? *My Answer*You want to identify the numbers first, density = mass ÷ volume. Which would give you, 1800g ÷ 300 cm³ = 6 g/cm³. *Cant Figure Out
  6. physics

    A prospector finds a solid rock composed of granite ( = 2650 kg/m3) and gold. The volume of the rock is 3.05 10-4 m3 and its mass is 3.57 kg. What mass of gold is contained in the rock? I thought that I could used some ratio, but
  7. Chemistry

    What is the mass of a sample of material that has a volume of 51.1 cm3 and a density of 6.31 g/cm3?
  8. physics

    If the mass of a material is 95 grams and the volume of the material is 14 cm3, what would the density of the material be? 6.785 g/cm3?
  9. 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
  10. Chemistry Science

    A sample of the element ygfjygg m has a mass of 5.6 g +/- .1 g and a volume of 3.1 cm3 +/- .5 cm3. The true density of Lindeminium is 1.92 g/cm3. ----HOW TO CALCULATE RANDOM ERROR(18%)?---

More Similar Questions