An experiment is performed to determine if pennies are made of pure copper. The mass of 11 pennies was measured on a balance and found to be 26.748 g. The volume was found by dropping the 11 pennies into a graduated cylinder initially containing 10.00 mL of water. The volume after the pennies were added was 12.90 mL.

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: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

A: Answer :--Given :-The weight of the wire used to wind the magnet is 434 gThe weight of the 40- gauge…

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: 8. On his birthday, Emilio received a gold nugget as a present from a friend and was curious to…

A: Given -> Weight= 17.24 gm Initial volume= 12.3 ml Final volume= 13.4 ml Density of pure gold =…

Q: A piece of a metal alloy with a mass of 114 g was placed into a graduated cylinder that contained…

A: A multiple choice question about concept of density, which is to be accomplished.

Q: A student goes to the lab and is tasked with measuring the mass of a block of nickel metal that has…

A: In given question there is need to define how the exact value is determined from different…

Q: Suppose you were given a piece of unknown metal, with a mass of 22.580 g, and a 50-mL graduated…

A:

Q: The density of a quartz mineral was determined by adding a weighed piece to a graduated cylinder…

A:

Q: .A student was given an unknown metal. The student determined that the mass of the metal was 50.2 g.…

A: Applying formula Density= mass/Volume (mL)

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

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

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

A:

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to…

A: According to given data heart pumps  blood at the rate of 84ml/s at 72 beats per minute.

Q: A piece of metal ore weights 2.00 g. When a student places it into a graduated cylinder containing…

A:

Q: The density of quartz mineral was determined by adding a weighed piece to a graduated cylinder…

A: According to the Archimedes principle, the volume of water displaced is equal to the volume of the…

Q: A rubber stopper had a mass of 5.62g. When the rubber stopper is carefully added to 12.5 mL of water…

A:

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: A flask of mercury has a mass of 76.0 pounds (lbs). What is the mass of the flask in grams?  3.45 x…

A:

Q: You would like to determine the density of an unknown metal. You fill a graduated cylinder with…

A: Density is the mass of an object contained per unit volume. It is the ratio of mass to volume.

Q: flask of mercury has a mass of 76.0 pounds (lbs). What is the mass of the flask in grams?  3.45 x…

A: The mass of flask of mercury  = 76pounds  1 Pounds = 453.92grams

Q: A hectacre (1.0000 x 104 m2) is a metric unit of area analogous to an acre. How many square feet are…

A: 1 feet consists of 0.3048 m and 1 square feet consists of 0.093 m2. 1 hectare consists of 10000 m2 5…

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km, Suppose a…

A:

Q: A piece of metal ore weighs 8.75 g. When a student places it into a graduated cylinder containing…

A: The density of the ore is to be calculated

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

Q: You can identify a metal using its density. If you have a metal brick that you measured to be 4…

A:

Q: Calculate the density of a solid substance that causes the water level in a graduated cylinder to…

A: mass per unit volume is known as density.

Q: a student obtains a sample of a sand/salt mixture in a test tube. home weighs the test tube with the…

A: The weight consists of two term Sample and test tube .

Q: A student is trying to determine the identity of a metal. The student measured the mass of the metal…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: We have to find the number of molecules of water in a given volume. The density of water is also…

Q: The mass of a piece of metal is 28.3055 grams. When the piece of metal was dropped into a graduated…

A: Given information: Mass of metal piece = 28.3055 g Initial volume = 7.34 cm3 Final volume = 9.84 cm3

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

A: Diameter of the wire = 0.080 mm Weight of wire per km = 44.5g   Weight of wire used to wind a magnet…

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: You are given a cube of pure adamantium. You measure the sides of the cube to find the volume and…

A:

Q: Precious metals and gems are measured in troy weights in the English system. The following…

A: Introduction:  We have to calculate volume of 1 pennyweight . Given :  Density = 21.45 g/cm3.

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: A piece of metal ore weighs 9.00 g. When a student places it into a graduated cylinder containing…

A: Given:Mass of piece of metal = 9.00 g = 9.00x10-3 Kg.Volume of cylinder without metal piece = 21.25…

Q: Find the difference between two masses measured as 123.6 grams and 115.972 grams. Express the answer…

A:

Q: When a mixture of aluminum powder and iron(III) oxide is ignited, it produces molten iron and…

A: According to law of conservation of mass, mass can neither be created nor be destroyed in any…

Q: metal sample with a mass of 0.073 kg is placed in a graduated cylinder that contains 60 ml of water.…

A: Density = Mass/Volume 1 Kg = 1000 g

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: A pure silver coin weighs 8.062 grams. Determine the volume (in L) if the density of silver is 1.049…

A: Given: Mass of pure silver coin= 8.062 g The density of silver =1.049 x104 kg/m3 To find: Volume in…

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.