A star is estimated to have a mass of 1x10^36 kg. Assuming it to be a sphere with an average radius of 7.5x10^5 km, calculate the average density of the star in units of grams per cubic centimeter.

Q: The population density of worms in a particular field is 34 worms per cubic meter of soil. How many…

A: The volume of soil is calculated as,

Q: If a block of copper measures 2.00cm x 4.00 x 5.00cm and weighs 356g, what is the density of the…

A: => Volume of copper block = (2.00 cm x 4.00 cm x 5.00 cm ) = 40.0 cm3

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: 4. The density of a proton is approximately 4.0 x 1014 g/cm°. If the mass of the proton is 1.7 x…

A:

Q: From 1967 until 1999, Canadian 10¢ and 25¢ coins were made of pure nickel which has a density of…

A: The solution of the given question is

Q: Under certain conditions, the density of dry air is 1.205 g/L. What is the mass of air in a room…

A:

Q: If a sample of unknown substance has a mass of 3.10 kg and a volume of 1.80 L, what is the density…

A:

Q: Determine the volume of a cube that has a length, a width and a height equal to 2.30 cm, 1.80 cm and…

A: It is given that:Length = 2.30 cmWidth = 1.80 cmHeight = 2.20 cm

Q: 3. The method of volume displacement can be used to find the volume of a solid. In this measurement,…

A: Given : Mass of silver = 194.3 g Initial volume of water = 242.0 mL Final volume of water (after…

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: What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm ^3?

A: Step : 1             What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm 3?

Q: A certain person had a brain that weighed 1.45 kg and contained 1.45 x 1010 cells. Assuming that…

A: The length of one side of the cell can be calculated from the volume of one cell.

Q: What is the density of a block of metal that measures 62.88cm by 34.220cm by 5.18cm and has a mass…

A: Given is, block of metal that measures 62.88cm by 34.220cm by 5.18cm  Mass= 24,983.44 grams

Q: In determining the density of a rectangular metal bar,a student made the following measurements:…

A: The density of the metal has to be given, Given data:  length=8.53 cm width,=2.4 cm height,=1.0 cm…

Q: Given that the air in a building has a density of 1.184 × 10-3 g/cm3, how much does the air weigh…

A: room is rectangular in shape  width = 30.0 feet and 7.0 inches = 30.584 feet  length =41.0 feet…

Q: The population density of worms in a particular field is 33 worms per cubic meter of soil. How many…

A: Given dimensions of field = 1 km × 1.5 km density of worms = 33 worm per cubic meter of soil

Q: The density of human urine is normally between 1.003 and 1.030 g/mL, and is often used as a…

A: The density of human urine is normally 1.003 to 1.030 g/mL 25 ml of urine has 26.875 g weight

Q: You have a 40-lb baggage limit for a transatlantic flight. When your baggage is put on the scale,…

A:

Q: A waterbed filled with water has the dimensions 8.0 ft x 7.0 ft x 0.75 ft. Taking the density of…

A: Given: The dimensions of the waterbed = 8.0 ft × 7.0 ft × 0.75 ft The density of water = 1.00 g/cm3…

Q: A backyard swimming pool holds a volume of 190 cubic yards (yd3) of water. How many of the following…

A: Given:A backyard swimming pool holds a volume of 190 cubic yards of water.  The density of water is…

Q: A material will float on the surface of a liquid if the material has a density less than that of the…

A: Given: Density of water = 1.0 g/mL Volume = 1.2 × 104 in3 Mass = 3.5lb

Q: mi/hr

A:

Q: Determine the density of an object that has a mass of 15.1g and , when placed into a graduated…

A: Rise in volume of water = 33.6 - 25.2  = 8.4 ml  As we know density = mass/volume .

Q: THe density of aluminium is 2.7 g/cm3. what is the mass, in grams, of a piece of aluminium foil that…

A: Given, density of aluminium is 2.7 g/cm3

Q: A star is estimated to have a mass of 3 x 10° kg. Assuming it to be a sphere with an average radius…

A:

Q: 5. A rectangular block of an unknown solid has a mass of 441.26 grams and measures 12.00 cm by 3.00…

A: Given, The mass of an unknown solid is 441.26 grams and measures 12.00 cm by 3.00 cm by 1.50 cm.

Q: To determine the density of an irregularly-shaped solid, a student immersed the object in 25.0 mL of…

A: To solve this problem we have to find the volume of object and then we will able to calculate the…

Q: Calculate the density of mercury if 1.00 x 10² g occupies a volume of 7.36 cm3.

A: Solution: Given that, Mass = 1.00 * 102 g Volume = 7.36 cm3  We know that, Density = mass / volume…

Q: Calculate the density of a metal object with a volume of 20.2 cm3 and a mass of 159 g The object is…

A: Given: The mass of the object, m=159 g  The volume of the object, V=20.2 cm3 The density of the…

Q: After taking measurements of a rectangular solid with a mass of 3.84g, you determined the length to…

A:

Q: The density of air at ordinary atmospheric pressure and 25 degrees Celsius is 1.19 g/L. What is the…

A: Given that density of air = 1.19g/L  Dimensions of room = 14.5*16.5*8.0 feet

Q: A piece of silver metal weighing 194.3 gramas is placed in a graduated cylinder containing 242.0 mL…

A: Given;

Q: The density of aluminum is 2.70 g/cm3. if 10.00 g of aluminum pellets is added to a graduated…

A: Density is a measure of mass per unit volume. The average density of an object equals its total mass…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

Q: 1. The density of air is given as 0.00118 g/mL, and the total volume of air is found to be 105.89…

A:

Q: if a plot of weight in g vs volume in ml for a metal gave the equation y=13.41x and R^2= 0.9981 what…

A: Density, mass and volume of a metal are related as:

Q: How many cubic feet are there in a room measuring 6m x 10m x 3m?

A: Cubic feet is calculated by measuring the height,width and length.

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: given l = 2.20 in   w =3.11 in  h = 10.4 in +1 in

Q: A sample of iron bar has a density of 7.87g/in^3. If the bar measures out to be 17.1mm x 6.6mm x…

A: Density of the iron bar = 7.87 g/ in^3.Volume of the iron bar = 17.1 mm x 6.6 mm x 5.3 mm = 598.158…

Q: The density of iron is 7.87 g/mL. What is the mass of a 3.00 cm x 3.00 cm x 2.00 cm block of iron?…

A: The given question is based on the concept of density. Density is defined as the ratio of mass of…

Q: 1.100 What is the density of lead in g/cm³ if a rectangular bar measuring 0.50 cm in height, 1.55 cm…

A: The density of lead in g/cm3 is to be calculated.

Q: A piece of metal weighing 305.5 g is placed in a graduated cylinder containing 241.3 mL of water.…

A: Mass of the metal = 305.5 gVolume of the metal = volume of the water displaced = 269.5 mL – 241 mL =…

Q: The mass of a glass beaker is known to be 25.1 g. Approximately 5 mL of water areadded, and the mass…

A: Given, mass of a glass beaker = 25.1g

Q: The mass of an empty 10ml graduated cylinder is 8.6g. What is the mass of a graduated cylinder with…

A: The given data is: Mass of an empty 10 mL graduated cylinder is 8.6 g Volume of water = 10 mL…

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: Given,length, l = 2.20 inwidth, w = 3.71 inheight, h = 10.4 in + 1 in

Q: Given that the density of water is approximately 1.0 g/ml. Will a block of material having a volume…

A:

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: Length of the box,l  = 2.20 in Width of the box, b= 3.91 in Height of the box , h = 10.4 in + 1 in…

Q: block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm . The block weighs 1591g. From this…

A: Given that: Mass of lead block = 1591 g  Dimension of lead block = 4.50cm×5.20cm×6.00cm So, volume…

Q: A star is estimated to have a mass of 2 x 1036 kg. Assuming it to be a sphere of average radius 7.0…

A: Given:m = 3 x 10³⁶ kg, the mass of the starr = 7.6 x 10⁵ km = 7.6 x 10⁸ mCalculate the volume of 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.