A star is estimated to have a mass of 2.0 ✕ 1036 kg. Assuming it to be a sphere of average radius 7.2 ✕ 105 km, calculate the average density of the star in units of grams per cubic centimeter.

Q: A piece of metal that is a cube with sides of 1.66 cm has a mass of 69.000 g.  Calculate the density…

A: TO calculate the density of the metal, first of all we determine the volume of the metal cube.

Q: the total mass of these atoms?

A:

Q: Calculate the volume in cubic centimeters occupied by one molecule of water in a beaker of water.…

A: Given that:                    Density of water = 1.00 g/cm3 To find:                  Volume…

Q: Suppose

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Q: What is the volume, in cubic centimeters (cm^3) of 1.00 kilograms of gold?

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Q: b) One sphere has a radius of 5.10 cm; another has a radius of 5.00 cm. What is the difference in…

A: Calculate the difference in volumes of two spheres in cubic centimeters. Given: Radius of one sphere…

Q: The quantitative significance of “take a deep breath" varies, of course, with the individual. When…

A:

Q: A gold cube is 150.00 mm long, 10.00 cm wide, and 0.95 m thick. If gold has a density of 19.3g/cm^3,…

A: The density of any substance is defined as the ratio of its mass to the volume of the substance.

Q: Determine the density (in g/cm3) of a metal alloy (a mix of metals) that has a mass of 56.68g and…

A:

Q: If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is…

A: Given   The price of gold is $1,318.61 per troy ounce. The second given price is $1,000,000. The…

Q: An atom of a particular element has a volume of 7.8 × 10⁻³¹ m³ . What is this volume in…

A: Given,Volume = 7.8 × 10-31 m3We can convert m3 to cubic nanometer (nm3) by using conversion factor…

Q: The density of iron is 7.86g/cm^3. calculate the density in kg/m^3 Note: 1mL=1 cm^3

A: Given: The density of Iron is 7.86 g/cm3. The density of a substance is calculated by the formula,…

Q: The total amount of fresh water on earth is estimated to be 3.73 x 10^8 km^3. What is this volume In…

A: Given: Amount of fresh water = 3.73×108 km3

Q: About two centuries ago, Benjamin Franklin showed that 1 teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T), or T = V/A  Given: The volume is 5.0 cm3. The…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.