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 5.3mm, what is the mass of the iron bar in kg?

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: The density of silver is 10.5 g/cm3. What would be the mass in grams of a piece of silver that…

A: Given that  Density of silver (Ag) = 10.5 gm/cm3 volume occupied by silver (Ag) = 23.6 cm3 We know…

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: The density of ethylene glycol, the principal ingredient in antifreeze is 1.11 g/cm3.  If you have…

A: For Ehtylene Glycol liquid,  Density = 1.11 g cm-3 Mass = 245 g Volume = ?

Q: What is the density, in g/mL, of the metal?

A:

Q: What is the speed of light in miles per second? Express your answer in scientific notation. The…

A: Given: The speed of light in m/s is 299,792,458 m/ s.

Q: The density of lithium is 0.530 g/cm^3 what is the volume occupied by 1.20 x 10^3 g of lithium?

A: Density = mass / volume  density of lithium is 0.530 g/cm3 0.530 g in 1 cm3

Q: the distance between the oxygen atom and a hydrogen atom in a water molecule is 95.7 pm what is the…

A: conversion from one unit to another unit is an important aspect of measurement

Q: If the density of gold is 19.3 g/mL, what is its specific gravity?

A: Specific gravity:  Specific gravity can be defined as the ratio of density of a substance to the…

Q: The density of lead is 1.134 x 104 kg/m3.  If a student determines the mass of a piece of lead to be…

A: Density of a substance is given by the ratio of mass and volume. Density = MassVolume It is the mass…

Q: The following procedure was used to determine thevolume of a flask. The flask was weighed dry and…

A: Density of the flask is equal to the mass of substance divided by its volume. Write the expression…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 x 1o 4m3 in…

A:

Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

A:

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: The measurement 4.3 x 103 g also could be written as

A: unit conversion is one of the basic measurement gram and kilogram are the units of mass 103 gram = 1…

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: 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: You add 6.2 g of iron to 23.00 mL of water and observe that the volume of iron and water together is…

A:

Q: What is the density of lithium metal in g/cm3, if a cube measuring 0.82 cm x 1.45 cm x 1.25 cm has a…

A: Mass of a cube = 0.794 g  According to given values ,Let's assume :  Length of a cube = 0.82 cm…

Q: The total amount of fresh water on earth is estimated to be 3.73 x 108 km3.  What is this volume in…

A:

Q: The egg whites from four "large" eggs occupy a volume of 112mL. The mass of the egg whites from…

A: The total mass and total volume occupied by the egg whites from the four large eggs are given.

Q: Iron has a density of 7.874 g/cm^3.What is the mass of a rectangular block of iron with dimensions…

A: Density of a substance is given by the ratio of mass of the substance to its volume. Density =…

Q: The surface area of the earth is approximately (1.92x10^8) square miles. What is this area in square…

A: we know that,  1 square mile = 2.59  square km

Q: mi/hr

A:

Q: An irregularly-shaped piece of iron (Fe) has a mass of 60.0 grams. What is the volume in cm³ of this…

A:

Q: A student measured the dimensions of a block of aluminum.  It is 2.00 cm x 0.55 cm x 10.50 cm.  The…

A: Mass of aluminium block = 31.19 g  Length of block = 2.00 cm Breadth of block = 0.55 cm Height of…

Q: The density of a piece of metal alloy is 4.35 g/cm3.What is the volume of 55.37 kg of this metal?

A: Given : Mass of metal = 55.37 Kg And density of metal = 4.35 g/cm3

Q: a sample of iron ore has a density of 7.87 g/mL. if it measures 7.0 cm x 1.93 cm x 5.15 cm, what is…

A: The question is based on dimensional analysis. we have been given dimensions of iron and its…

Q: A student is determining the density of an unknown metal with a mass of 87.8 g. The student…

A: Given: The mass of an unknown metal, m = 87.8 g The vol. of water in the graduated cylinder without…

Q: One molecule of the spherically shaped, oxygen-carrying protein in red blood cells, hemoglobin, has…

A: Given: Diameter of the oxygen carrying cells = 5.5nm To Find: Diameter of the cell in meter Formula:…

Q: If a block of copper measures 2.00 cm x 4.00 cm x 5 cm and weighs 356 g, what is its density?

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Bacteria vary somewhat in size, but a diameter of 2.0 micrometers is not unusual. What would the…

A: Given, Diameter of the bacteria d = 2.0 μm Radius r = d/2 = 2.0/2 = 1.0 μm The shape is assumed to…

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 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: A sample of gold foil is 9.5cm by 12cm. If the mass of the foil is measured to be 10.56g and the…

A:

Q: A rectangle lead apron is placed over the chest of a patient while X-rays are taken in a dental…

A: The volume of the rectangle is calculated as shown below where l, w, and h are the length, width,…

Q: What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to…

A: Since we know for a rectangular foil area = length × breadth  Here , Length = 43.9 cm…

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 measure the weight of a metal to be 160.5 g and then you place it in a graduated…

A: Mass of metal = 160.5g  Volume of solid metal and liquid = 248.2ml Volume of (metal + water) =…

Q: An irregularly-shaped piece of aluminum (Al) has a mass of 57.2 grams. What is the volume in cm³ of…

A: Density (g/cm3) = Mass(gram)/volume(cm3) So, volume= mass/density So by the above formula…

Q: When subtracting 61.45 g from 242.6 g, which value determines the number of significant figures in…

A: Significant figures are the value of a number of digits that add accuracy to the value. There are…

Q: You are given the length and width of 10.5 in by 8.5 in. Upon weighing, it comes out to be 0.885 g.…

A: Given,Dimensions are 10.5 inch by 8.5 inch.Density is 1.10g/cm3Mass is 0.885 g.Thichkness = ?

Q: 8. The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 x 10-8 cm.…

A: Given, Distance between the centres of two oxygen atom in an oxygen molecule (d)= 1.21 × 10-8 cm…

Q: The density of liquid mercury is 13.5 g/cm3. What mass (in kg) of mercury is required to fill a…

A: Density of liquid mercury = 13.5g/cm3 = 13.5g/ml Volume of container = 2L = 2000ml We have to find…

Q: What is the speed of light in miles per hour? Express your answer in scientific notation. The speed…

A: The speed of light = 299,792,458 m/ s

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: The speed of light in a vacuum is 3.00 x 108 m/s. What is the speed of light in kilometers per hour…

A:

Q: The SI units of density are kg/m³ but g/cm³ is more commonly used. How many g/cm³ are in 1 kg/m³?

A: Density is the ratio of the mass of the substance with that of the volume occupied by the substance.…

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.