A student is trying to determine the identity of a metal. The student measured the mass of the metal to be 60.4g. The student placed the metal in a graduated cylinder filled with 40.0 mL of water. The metal increased the volume of water to 45.8mL. Calculate the density of the metal. If the density of nickel, silver and zinc are 9.9, 10.5 and 7.1 g/mL respectively, what is the density of the unknown metal?

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: A student measures the mass of a piece of aluminum, and finds it to be 8.945 g. She finds that the…

A:

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 of the salt in g/mL?

A: Density = mass ÷ volume    Rule for significant figure in division:- Round off final answer as per…

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

A:

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 sample of metal pellets weighs 13.54 g. When this sample was placed in a 100-mL graduated…

A: Calculate the volume of metalVolume of metal = 27.0 mL – 25.5 mL = 1.5 mL = 1.5 cm3Calculate the…

Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

A:

Q: An instrument used to detect metals in drinking water can detect as  little as 1 μg of mercury in 1…

A: According to this question, Using formulas are  No.of atoms in V Ltrs of water = mass in V Ltrs…

Q: Calculate the length in meters of a piece of sheet metal that is 1.50 mm thick and 2.01 meters wide…

A: Given, thickness of piece of sheet metal = 1.50 mm            width of piece of sheet metal = 2.01 m…

Q: A piece of copper has a volume 300 L. What is the mass of the sample, in units of grams? Fill in…

A: the Red box is filled as shown below:

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

A: Given,Density of potash borosilicate glass = 2.16 g/mLMass of unknown glass fragment = 3.616 gVolume…

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

A:

Q: Suppose

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Q: a small sheet of aluminum metal (?=2.70 g/cm3). The sheet had a mass of 1.3648 g, a length of 2.05…

A:

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: Calculate the density of the coin from your measurements, and determine how many significant figures…

A: Given :- mass of coin = 84.6419 g               Initial volume of water = 105.53 mL…

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

A: Density of any substance can be defined as the ratio of the mass of the substance to its volume. It…

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: A bar of gold with a mass of 2060.5 g has the following dimensions: 7.30 cm by 3.25 cm by 4.50 cm.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A student is trying to identify the composition of a pure metal block by determining its density.…

A: Given that: Mass of block = 30.0 g Rectangular block = 2.00 cm × 3.00 cm × 1.40 cm Density of block…

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: In the lab, the density of a solution was being investigated. A buret was used to measure out the…

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: Iron has a density of 7.86 g/cm° (1 cm' = 1 mL). Calculate the volume (in dL) of a piece of iron…

A:

Q: Determine the density (in g/cm3) of a metal alloy (a mix of metals) that has a mass of 56.68g and…

A:

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: A certain person had a brain that weighed 1.35 kg and contained 2.65 x 10¹0 cells. Assuming that…

A: The length of one side of the cell can be calculated from the volume of one cell.To determine volume…

Q: 1. A 25 mL flask is known to hold a total volume of 27.64 mL when completely filled. The empty flask…

A: Given ,Volume of falsk = 25 mLTotal volume it can hold = 27.64 mLMass of flask = 45.897 gMass of…

Q: A sample of an unknown ore weighing 1.275 kg is found. When the sample is placed into a large…

A: Given that : Mass of the sample = 1.275 kg = 1275 g When the sample is placed into a large graduated…

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 student wants to determine the density of a metal object. They weigh it and find that its mass is…

A:

Q: A 4.369 g sample of metal is placed in a flask that has 124.8 mL of water in it. After adding the…

A: Density of a substance is equal to the mass of substance divided by its molar mass. Write the…

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

A: When a body is immersed in a fluid, it displaces the fluid. Then calculate, --------- (1)

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: What is the mass of a piece of silver metal that has a volume of 17.4 cm^3? (The density of silver…

A: Given:  Volume of silver piece given= 17.4 cm3  Density of silver metal= 10.5 g/cm3

Q: A student wishes to determine the density of a solution of lithium hydroxide. He finds the mass of…

A: Interpretation: The mass of the flask is 27.532 g. The flask with water at 22°C ( d = 1.00 g/mL),…

Q: 2. You purchase a rectangular piece of metal that has  dimensions 5.0 X 15.0 X 30.0 mm and mass…

A: A numerical problem based on measurement, which is to be accomplished.

Q: A chemistry student needs 90.0g of carbon tetrachloride for an experiment. The density of carbon…

A:

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

A: Density = mass/volumeVolume of substance = volume of water displaced by substance

Q: PART A: an unknown mineral sample has a mass of 23.4 grams and a volume of 3 cm^3. According to the…

A: Given, mass of unknown mineral sample = 23.4 g volume of unknown mineral sample = 3 cm3 we know,…

Q: The density of metal #2 is 3 times greater than the density of metal #1. 52.5 g of metal #2 caused…

A: Given Density of metal #2 is 3 time greater than density of metal #1

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…

Q: particular flask has a mass of 17.4916 g when empty. When filled with ordinary water at 20.0°C…

A:

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.