A student gently drops an object weighing 16.5 g into an open vessel that is full of ethanol, so that a volume of ethanol spills out equal to the volume of the object. The experimenter now finds that the vessel and its contents weigh 10.5 g more than the vessel full of ethanol only. The density of ethanol is 0.789 g / cm^3. What is the density of the object?

Q: A medical doctor gives the order to administer dopamine at a rate of 3.0 mcg/kg⋅min (mcg is the…

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Q: A metal object of an irregular shape has a mass of 31.5 grams. When the metal is added t water in a…

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Q: It has been estimated that 8.0 × 104 tons of gold (Au)have been mined. Assume gold costs $1350 per…

A: Given that : Mass of gold = 8.0×104 tons Cost of gold = $1350 per troy ounce Worth of gold =? (1…

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 25.38 g of potassium iodide…

A: Mass of potassium Iodide = 25.38 g Volume of water = 100. mL The concentration is needed in the unit…

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

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

A: Given:

Q: Gold, which has a density of 19.32g/cm^3, is sold by the troy ounce, which is 31.103 g. What is the…

A: We will use this formula, Volume = Mass/density

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A:

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A: To determine whether students who sit in the front of the classroom have significantly different…

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A: TO calculate the density of the metal, first of all we determine the volume of the metal cube.

Q: You are given a bottle that contains 4.39 cm^3 of a metallic solid. The total mass of the bottle and…

A: The density of a solid can be defined as mass of solid per unit volume of solid. The symbol used for…

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A:

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: a piece of metal weighing 20.55g was immersed in water in a graduated cylinder, the initial volume…

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Q: Carry out the following conversions: (a) 32.4 yd to centimeters, (b) 3.0 × 1010 cm/s to ft/s, (c)…

A: (a) 32.4 yd to centimeters, (b) 3.0 × 1010 cm/s to ft/s, (c) 1.42 light-years to miles (a light-year…

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

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: What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm ^3?

A: Step : 1             What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm 3?

Q: The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is…

A: 1 acre-foot = 43,560 ft³ 1 US liquid gallon = 231 cubic inches 1 US liquid gallon = 3.785 liters 1…

Q: The density of gold is 19.32g/cm^3 at 20 degrees C. If 25.75g of pure gold nuggets is added to a…

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Q: The total weight of copper in a vehicle ranges from 15 kilos for a small car to 28 kilos for a…

A: The weight will affect the car acceleration and deacceleration which tells that how better a car can…

Q: Gold is a very soft metal that can be hammered into extremely thin sheets known as gold leaf. If a…

A: The average thickness of the sheet produced from given grams of gold is calculated as shown below

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

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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: the density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

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: mass of the necklace

A: This is simply a question of density. As we know that by using concept of density, we can calculate…

Q: What is the area in cm² of a sheet of paper that is 8.50 in x 11.0 in?

A:

Q: A chemistry student needs  10.0g  of methyl acetate for an experiment. By consulting the CRC…

A: Density is a mass per volume ratio. The average density is similar to the total volume of an object.…

Q: What is the volume (in units of m^3) and density (in units of g/mL) of a 325g rectangular block of…

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Q: A chemist prepares solution of nickel(II) chloride (NiC1₂) by weighing out 202.7 g of nickel(II)…

A: Given: mass = 202.7 g

Q: If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is…

A: Given   The price of gold is $1,318.61 per troy ounce. The second given price is $1,000,000. The…

Q: Activity 1 Lewis Dot Structures Chemical Formula: Dot Diagrams: Electrons: Central Atom: Lewis…

A: In chemistry different type of compounds or Molecules have different formula, different Chemical and…

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: In the movie The Italian Job, thieves steal gold bullion. One plan is to carry the ingots of gold…

A: Given : Volume of suitcase = 4.36 x 104 cm3 approx. Density of gold = 19.3 g/cm3  And weight of…

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: A chemist mixes two liquids, A and B, to form a homogeneous mixture. The densities of the liquids…

A: The density of the metal object can be obtained by using the formula for the mixtures for densities…

Q: Iron has a density of 7.87 g/cm^3. If 15.1g of iron is added to 25.9 mL of water in a graduated…

A:

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),…