A cube of an unknown metal was dropped in a graduated cylinder containing 45.0 mL of water. After the metal cube sank to the bottom of the graduated cylinder, the water level read 45.5 mL.  If the metal cube weighs 10.7 grams, what is the identity of the metal cube?  Show your work to support your answer.    Platinum; d = 21.4 g/cm3 Gold; d = 19.3 g/cm3 Silver; d = 10.5 g/cm3 Copper; d = 8.92 g/cm3

Q: A student needs to determine the density of two metal objects. The first object is a cube and the…

A: Given,mass of metal cube = 52.55 g                edge length of a cube = 2.16 cm    2. mass of a…

Q: A cube of an unknown metal was dropped in a graduated cylinder containing 45.0mL of water. After the…

A: Given:

Q: A chemist prepares a solution of sodium chloride (NaCl) by weighing out 2.346 g of sodium chloride…

A: Concentration (w/V) = wt of solute in gram /volume of solution in Litre (V ltr)

Q: 2. If the density of an unknown object was found to be 2.87 x 10 pounds (Ibs) per cubic inch, what…

A:

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: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

Q: Calculate the density of silver in g/cm3.

A: Density is the ratio of mass of substance to the volume of substance.  density = mass/volume

Q: The mass of fuel in an airplane must be determined before takeoff. A jet contains 16665 L of fuel…

A: Volume of fuel = 16665 L 1L = 1000cm3 16665 L = (1000 × 16665) cm3

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A: Given,  The mass of the unknown glass fragment = 3.379 g The density of a potash borosilicate glass…

Q: The mass of an object was found to be 28.90 g. When this object was dropped in a graduated cylinder…

A: Given, mass of object =28.90 gramthis object was dropped in a graduated cylinder partially filled…

Q: While using an electronic balance the mass of calcium chloride and a watch glass to be 34.920 g…

A: Given  Mass of CaCl2 + watch glass = 34.920 gram  Mass of empty watch glass = 32.17 gram  mass of…

Q: There is a pebble in a graduated cylinder filled with water and the volume reads 106 mL. If you…

A: The objective of this question is to find the mass of the pebble given its density and the change in…

Q: A chemistry student needs 15.0 g of ethanolamine for an experiment. By consulting the CRC Handbook…

A: According to the question,The student needs the mass of ethanolamine = 15.0 g.The density of the…

Q: A student was given 3 unknown cylinders each with masses of exactly 25.00 g. The choices of metal…

A: The displacement of water by metal is equal to the volume of metal. The volume of metal can be…

Q: You have weighed out 24.5685 g irregular solid chips on an aluminum foil and transferred those chips…

A: Given : mass of solid = 24.5685  initial volume of water in cylinder = 50 mL And final volume of…

Q: A 100.0 mL graduated cylinder was used to measure the volume of water. The initial volume of the…

A: Given:Mass of coin = 96.51 g.Volume of coin = final volume – initial volumeVolume of coin = 56.0 mL…

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: 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: The mass of a uranium atom is 3.9526 × 10-22 grams. What is this value in nanograms? In your…

A: The mass of uranium atom = 3.9526×10–22 grams

Q: A can of soda weighs 344 grams and it contains 95 grams of sugar. Calculate the percentage of sugar…

A: Answer: Given data: Mass of sugar Msugar=95g Mass of can of soda M=344g

Q: Suppose you were given a piece of unknown metal, with a mass of 22.510 g, and a 50-mL graduated…

A: Mass of metal = 22.510 gm  Volume of water = 36.1 ml  Volume of water after addition of metal = 45.8…

Q: A chemist prepares a solution of copper(II) fluoride (CuF₂) by weighing out 0.0307 mg of copper(II)…

A: Given: The mass of copper(II) fluoride taken is 0.0307 mg. Volume of water is 50.0 mL.

Q: An nickel ore weighing 85.245 g was placed in a flask having a volume of 45.25 mL. The flask with…

A: Given the weight of ore is 85.245 g and was placed having a volume of 45.25 m L. Total mass of the…

Q: A chemistry student weighs out 0.146 g of chloroacetic acid (HCH,CICO,) into a 250. mL volumetric…

A:

Q: A general chemistry student found a chunk of metal in the basement of a friend's house. To figure…

A: First we will calculate density of metal, then estimate the unknown metal by comparing density of…

Q: A chemist prepares a solution of mercury(I) chloride (Hg₂Cl₂) by measuring out 0.53 mg of mercury(1)…

A: Mass of mercury chloride = 0.53 mg = 0.00053 g  (1 mg = 0.001 g ) Molar mass of mercury chloride =…

Q: If a large marshmallow has a volume of 3.25 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: The question is based on the concept of physical chemistry. We have to calculate mass of the…

Q: The mass of a unknown metal sample is measured at 19.859 grams. When added to a cylinder containing…

A: Answer: This question is based on the relation between density, mass and volume where density of a…

Q: A chemistry student needs 85.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: 85 ml of diethylamine is taken.  The density of it is 0.706gcm-3

Q: A chemistry student needs 75.0 mL of tetrahydrofuran for an experiment. By consulting the CRC…

A: Density (d) tells us how much mass is present in given volume of solution. It is calculated by…

Q: What is the density and identity of the metal? (see Table 3.1)

A: Mass of object = 8.37 g Volume occupied by metal = 3.10 mL Density = mass(g)/volume(mL)  = 8.37/3.10…

Q: A graduated cylinder was filled with water to the 17.2 mL mark and weighed on a balance. Its mass…

A:

Q: In the lab you weigh 12.54 g of NaCl to make a stock solution of 5.12 M. To further dilute the…

A: Given data, Initial concentration (stock solution M1) Final concentration (M2) Final volume (further…

Q: You have two objects made of the same substance. Object 1 is a cube with a mass of 375.5 g. You…

A:

Q: An unknown metal sample weighs 18.1 g. This rubber stopper was placed in the graduated cylinder…

A:

Q: You can identify a metal by carefully determining its density. A 55.5 g piece of an unknown metal is…

A: The mass of the unknown metal is 55.5 g.The length of the metal piece is 2.79 cm.The width 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.