What is the circumference in kilometers (km)? in meters (m) (1 mi = 1.6093 km)

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: The density of methanol at 20.0 oC is 0.791 g/mL.  What is the mass, in grams, of a 280. mL sample?

A: Density: The density of the substance can be defined as the mass of a unit volume of the substance.…

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 speed of light is 2.998 × 10° m/s. How long does it take light to travel 30. cm? Set the math…

A: Given, the speed of light =2.998×108 mswe are asked to calculate the time required to travel 30 cm

Q: The density of gold is 19.30 g/cm3. What is the mass (in grams) of a block of gold with dimensions…

A:

Q: It takes about 334 miles (mi) to travel from Dublin, GA to Orlando, FL. What is this distance in Mm…

A:

Q: Number 5, 6, 9, and 10

A: Since you have posted multiple questions, we will solve first one for you. To get remaining…

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: What is the density of the metal weight?

A: Mass of empty beaker = 0.1 gTotal mass of system = 0.54 g

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: High-density lipoprotein (HDL) is a type of cholesterol, sometimes called “good cholesterol,” that…

A: Density is given by the ratio of the mass of the substance to that of the volume.

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: 8. A company delivering crates of soap ships their cargo on pallets. A single pallet contains 6.00…

A: 8) Given: Number of pallets = 2 pallets Number of crates in 1 pallet = 6.00 crates. The number of…

Q: The diameter of a red blood cell is about 3 × 10−4 in. What is its diameter in centimeters?

A: Red blood cell (RBC) is the component of blood. It helps in the transport of oxygen to the body…

Q: A rectangular block of copper alloy has a mass of 1896 g. The dimensions of the block are 8.4 cm by…

A:

Q: What is the volume, in quarts, of 1.068 kg of olive oil? The density of olive oil is 0.92 g /mL.

A: Density is defined as a property which measures the mass of a substance by comparing it to the…

Q: A jet airplane reaches 768. km/h on a certain flight. How long does it take to cover 323. m? Set the…

A:

Q: The density of iron is 7.86 g/cm3. What is the volume in milliliters (mL) of an irregularly shaped…

A: • The values provided in the question are:-  i) Density of Iron, d = 7.86 g/cm3 ii) Mass of Iron, m…

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 old pharmaceutical system of measurements, masses were expressed in grains. There are 5.760 x103…

A: Given:  Mass of 5.760 x 103 grains = 1 lb  1 lb = 453.592 gm  Number of grains in aspirin = 5

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: A stack of paper has a volume of 187 cube inches Now all the sheets are laid out on the floor,…

A: Given: Volume of a stack of paper = 187 cubic inches Area covered by paper       = 46,750 square…

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: If the density of gas is 0.702 g/mL, what is the mass in grams of 5.0 x 101 mL of gasoline?

A: Given, If the density of gas is 0.702 g/mL,  The mass in grams of 5.0 x 101 mL of gasoline is :

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: mi/hr

A:

Q: A chemistry student weighs out 0.228 g of phosphoric acid (H,PO, a triprotic acid, into a 250. mL…

A: This is an acid base titration where H3PO­4 is a triprotic acid and the reaction taking place will…

Q: If a troy pound equals 12 troy ounces, and a troy ounce equals 31.1 grams, what is the mass in…

A: Given: 1 troy pound=12 troy ounces 1 troy ounce=31.1 grams

Q: A new beeswax candle has a volume of 475 cubic centimeters. Given that the density of beeswax is…

A: Given :- volume of beeswax = 475 cm3              density of beeswax = 0.970 g/cm3  To be calculated…

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

A:

Q: For a pharmacist dispensing pills or capsules, it is often easier to weigh the medication to be…

A: Given:A single antibiotic capsule weighs 0.50 g and a pharmacist weighs out 12.5 g of capsules for…

Q: A brick of metal has these dimensions: 4.13 in x 5.57 in x 4.01 in. It has mass 11.1 kg. What is the…

A: Metal Brick dimension = 4.13 inx 5.57 in x 4.01 in Mass = 11.1 kg

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 benzene is 0.879 g/ml. What is the mass in grams of 1.00 qt of benzene?

A: Given data is as follows: The density of benzene = 0.879 g/mL The volume of benzene = 1.00 qt The…

Q: What is the volume, in milliliters, of 6.60 g of acetone?

A: Density = mass ÷ volume  So, volume = mass ÷ density

Q: I think I did a calculation wrong but I am having trouble understanding significant figures. In…

A: Significant figures: These are the digits of a number that are useful in terms of accuracy and…

Q: If a sample of clay has a density of 1.7 g/cm3 and it takes up a volume of 0.43 cm3, what is its…

A:

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: 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: Blood alcohol content is a measure of alcohol in the blood as a percentage. It is calculated in…

A: A BAC of 0.08% means that 0.08 g of alcohol is present in 100 mL of blood  So the required…

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 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: the unit of land measure in the english system is the acre, while that in the metric system is the…

A: We have to calculate the area in hectares.

Q: the radius of a neon atom is 6.9 x 10 ^-2 nm, and its mass is 3.35 x 10^-17 micrograms. what is the…

A: 6.9 * 10-2 nm = 6.9 * 10-12  m  We know that formula of volume of sphere  = 4/3 πr3  As 1 meter =…

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: a thin sheet of nickel measured 5.00 cm by 7.00 cm was found to weigh .350 g. if the density of…

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.…

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.