An irregularly-shaped piece of iron (Fe) has a mass of 60.0 grams. What is the volume in cm³ of this piece of iron if its density is 7.87 g/cm³?

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: If an object has a density of 3.99 g/cm , what is its density in units of kg/m 3? 3.99 x 103 kg/m3…

A: The Density is defined as the ratio of the mass of the substance to that of volume of that…

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: what is the density an object with a mass of 1.583 g and the volume of 0.2009 ml ?

A: Density can be calculated using the equation given below:

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 gasoline is 0.774 g/cm3. How much does 1.50 gallons of gasoline weigh, in kilograms?

A:

Q: A block of iron was measured to be 2.00 cm by 3.15 cm by 5.25 cm. If the density of iron is 7.87…

A: Block of Iron was measured and value is given Density of iron is given How Heavy was the block of…

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: An irregularly-shaped piece of aluminum has a mass of 88.8 grams. What is the volume of this piece…

A: Concept introduction: Density is equal to the ratio of mass to volume. Formula: If the density of…

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: A rectangular box measures 6.00 iniches in length, 7.00 inches in width, and 8.00 inches in height.…

A: Given :-  Dimensions of rectangular box  Length = 6.00 inch  Width = 7.00 inch  Height = 8.00 inch…

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

A:

Q: If an object has a density of 4.99 g/cm3, what is its density in units of kg/m3?

A: We will convert units from g/cm3 to kg/ m3 using unit conversion factor.

Q: What is its density?

A:

Q: If the density of one marble is 2.5 g/cc, what is the density of ten marbles

A: Given :  Density = 2.5 g.cm-3

Q: What is the volume of an object whose density is 9.8 g/mL and has a mass of 100 grams?

A:

Q: The speed of light in a vacuum is 2.998*108 m/s. What is its speed in kilometers per hour (km/h)?

A: It is given that speed of light in vacuum is = 2.998×108 m/s

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 density of mercury is 13.6 g/mL. If a sample of mercury weighs 272 g, what is the volume of the…

A: Mercury is a poisonous element and it is symbolized as Hg. Given: Density of Hg, ρ = 13.6 g/mL…

Q: If an object has a mass of  3.682 g and a volume of  17.9 ml, What is its density.

A: Density is defined as mass per unit volume. According to definition: Density = Mass/ Volume

Q: A room measures 10.0 ft by 11.0 ft. And is 9.0 ft high. What is its volume in liters

A: A cuboid is a shape with different length, breadth & height. The volume of cuboid can be…

Q: A long ton is defined as exactly 2240 lb. If a shipment weighs 12.565 tons how much does it weigh in…

A: Unit conversions. 1 long ton = 2240 lb 1 lb = 0.4536 kg   1 long ton = 2240×0.4536 kg = 1016.06 kg

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: A house has an area of 221 m2m2. What is its area in each unit? Express the area in square…

A: The space occupied by a surface of object or a flat shape is known as area.

Q: What is its density in kg/m3?

A: Given :- density of Be = 1.85 g/cm3  To calculate :- density in kg/m3

Q: Lead has a density of 11.4 g/cm3. What is the mass in grams of a cube of lead that has the…

A:

Q: A star is estimated to have a mass of 2 x 10 kg. Assuming it to be a sphere of avera radius 7.0 x…

A: Given data: Mass of star = 2 * 1036 kg, Radius = 7.0 * 105 km The star is assumed as circle thus,…

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: 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: If lead has a density of 11.4 g/cm3, what is the volume of 5,200 g of lead

A:

Q: The world’s oceans have a combined volume of 3.204 x 10^8 miles^3. (A) If the average density of…

A: In general. density can be defined as mass of a substance per unit volume of that substance.

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: What is the mass of an irregular shaped object that has a density of 5.59 g/ml if you have 43 ml of…

A:

Q: What is the volume of an object that has the density of 3 g/mL and the mass of 93 g?

A:

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: The density of titanium is 2.25 g/mL.  What is the volume, in milliliters, of 10.0 g of titanium?

A: Density is the mass of any substance confined in a given volume. Mathematically  Density =…

Q: The Hope diamond is the world's largest blue diamond ith a weight of 44.4 carats. A carat is defined…

A: In the given problem weight of gold is 44.4 carats. Weight of 1 carat gold = 2.0 ×102 mg To find :-…

Q: What is the density (in g/mL) of an object if 7.237 mL has a mass of 5.443 grams?

A: Given data : Mass (m) = 5.443 g Volume (v) = 7.237 mL

Q: he volume occupied by the egg whites from four “large” eggs is 112 mL. The mass of the egg whites…

A: Given : volume of 4 egg whites = 112 mL And mass of 4 egg whites = 120 g

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: If a monolayer of stearic acid has a mass of 2.5*10^-5 g and occupies a surface area of 82 cm^2,…

A: Volume = Mass/density Height = Volume/surface area Given that: Mass of stearic acid =2.5 x 10-5 g…

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: If a box measures 78.4 cm x 1.34 m x 654 mm, what is the volume of the box in cubic centimeters?

A:

Q: What is the density of the rock

A: In this question we found the density of the rock and also we know about the density.

Q: An atom of a particular element has a volume of 7.8 x 10¯31 m3 What is this volume in cubic…

A: The volume of the element is = 7.8×10-31 m3 This volume can be converted into a cubic nanometer by…

Q: If it is found that 5.00 mL of a sample has a mass of 6.083 g, what is the density of the sample in…

A:

Q: Acetone (nail polish remover) has a density of 0.7857 g/cm3. What is the volume, in milliliters, of…

A: Density is the ratio of mass to Volume. Given:Mass of acetone = 6.72 gDensity of acetone = 0.7857…

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.…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.