A box contains a mixture of iron spheres and platinum spheres. The total mass of the combined spheres is 4.00 kg, and the total volume of both metals is 419 mL. What percentage of the spheres are iron? The densities of pure metals can be found in this table. percentage of iron spheres =

Q: A student is determining the density of an unknown metal with a mass of 32.56 g. The student…

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Q: A student conducted an experiment where water was pipetted into a graduated cylinder and then…

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Q: In europe, gasoline efficiency is measured in km/l. If your cars gas mileage is 27.0 mi/gal, how…

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: Under certain conditions, the density of dry air is 1.205 g/L. What is the mass of air in a room…

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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: Mercury metal is poured into a graduated cylinder to exactly 22.5 mL. The mercury used to fill the…

A: Given information: Volume = 22.5 mL Mass of empty graduated cylinder = 12.0 g Mass of mercury +…

Q: In a recent Grand Prix, the winner completed the race with an average speed of 229.8 km/h. What was…

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Q: The rate at which water falls at the Niagara Falls is about 84,760 ft3/s. How many liters of water…

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Q: A person has a BMI of 19.1 kg/m2. What is this in Ib/ft? A) 42.1 Ib/ft? B) 5.82 Ib/ft? C) 3.91…

A: Density = mass/volume  Volume of cube = length × breadth × height

Q: A 1.0-mL volume of seawater contains about 4.0 x10‒12 g of gold. The total volume of ocean water is…

A: Given,  1.0 mL of sea water contain 4.0×10-12 g of gold.  The total volume of sea water 1.5×1021L…

Q: A lead sphere has a mass of 1.20 × 104 g, and its volume is 1.05 × 103cm3. Calculate the density of…

A: The given data contains, mass=1.20×104 gvolume=1.05×103 cm3

Q: A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL. What is the density of the…

A: For division: In any problem, the minimum number of significant figures in any number is used to…

Q: The unit of weight used for precious stones is the carat (1 carat=200 mg ,exactly).If a particular…

A: Conversion of carat into mg: 1 carat=200 mg1.25 carat=1.25×200=250 mg Conversion of mg into g: 1…

Q: Measurement of the density of water. Weigh a small beaker (degree of precision?). Place about 25 mL…

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

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Q: The density of aluminum is 2.70 g/cm3. The mass of a solid piece of aluminum is 3.32 g. What is its…

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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.Measurement of the density of water.Weigh a small beaker (degree of precision?). Place about 25 mL…

A: Here we need to calculate the density of the water. We know that, density is defined as the mass per…

Q: copper wire is 33.99 cm long and weighs 1.621 g. The density of copper is 8.933 g/ cm^3. What is the…

A: Volume of wife is =πr2l Density=mass/volume  Use this formula to get the answer

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: 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: Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs…

A: From given datas  Initially mass of red gold alloy is calculated from the sum of mass of gold and…

Q: B. 0.108 lbs/in3 C. 534 lbs/in3 D. 0.697 lbs/in3 2.)The density of an alcohol is 0.788 g/mL. What…

A: Density = 19.3 g/cm3  Density = lbs/in3

Q: Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs…

A: Red gold is a gold copper alloy used to make jewellery.

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 waterbed filled with water has the dimensions 8.0 ft x 7.0 ft x 0.75 ft. Taking the density of…

A: Given: The dimensions of the waterbed = 8.0 ft × 7.0 ft × 0.75 ft The density of water = 1.00 g/cm3…

Q: An empty beaker weighs 39.81 g. When completely filled with water, the beaker and its contents have…

A: Given:  The mass of an empty beaker = 39.81 g The mass of the beaker when it is completely filled…

Q: A block of wood 22.0 cm x 180 mm x 0.057 mm has a mass of 1.426 x10^3 grams. What is the volume of…

A: • The values provided in the question are:-   i) Length of a block of wood, l = 22.0 cm  ii) Width…

Q: An empty beaker weighs 42.77 g. When completely filled with water, the beaker and its contents have…

A: Since you have posted  multiple questions in a single session. we are entitiled to answer only first…

Q: The weight of a metal sphere was measured to be 9.81 g. Unfortunately, the caliper that was supposed…

A: Given : weight of a metal sphere = 9.81 g  Density = 7.26 g/cm3 To find : Radius of metal surface…

Q: A jet airplane reaches 887. km/h on a certain flight. How long does it take to cover 454. m? Set the…

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Q: A chemist weighs herself on a scale and records a mass of 65.1 kg. She removes a calculator and…

A: Given : Mass of chemist with calculator = 65.1 Kg = 65.1 X 103 g                   (Since 1 Kg =…

Q: A graduated cylinder contains 19.9 mL of water. When a small piece of galena (lead ore) is added, it…

A: Intrdouction :  We have to calculate the mass of ore.

Q: Keeping track of units during conversions can get confusing. Therefore, a good strategy is to use…

A: We will use conversion factor to convert each term in question.

Q: Give an accurate word definition of the term “density”.     Is density a physical property or a…

A: Density is defined as the mass of any substance present per unit of volume. => Density = Mass of…

Q: 1. What is the density of a solid with a volume of 32.5 mL and a mass of 27.1 grams? 2. A graduated…

A: 1. Mass of solid =27.1 g Volume of  solid = 32.5 L Density = mass / volume = 27.1g/32.5mL =…

Q: In the lab, a student determines the density of a metal object by measuring its mass on a balance…

A: Calculate the volume of the object:

Q: A student wondered if their necklace was real silver. They weighed the necklace and found it was…

A: Density (d) :-  The ratio of mass of a substance to its volume is called density of that substance…

Q: my results are the first pic

A: Hi there, as there are multiple questions posted. We are answering the first question. If you need…

Q: An irregular-shaped solid was placed into a graduated cylinder containing 50.2 mL of water.The…

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

Q: Iron has a density of 7.87 g/cm3. If 52.4 g of iron is added to 75.0 mL of water in a graduated…

A: Given density of iron = 7.87 g/cm3 mass of iron = 52.4 g Using density formula, find the volume of…

Q: If the density of baking soda is 2.1 g/mL, how many grams of baking soda are present in 5.0 mL (the…

A: the product must contain 2 significant figure as bot of the multiplicand have 2 significant figure

Q: A spherical iron ball has a diameter of 11.6 cm and has a mass of 4.70 kilograms. This particular…

A: Given : density of metal = 7.86 g/cm3  Diameter of ball (outer diameter) = 11.6 cm And mass of ball…

Q: A scientist performs an experiment to determine the density of a sugar solution.  He obtains the…

A: Accuracy refers to how closely a measured value relates to the true value. Precision refers to how…

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

A:

Q: A chemistry student needs 35.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC…

A: Given, volume of dimethyl sulfoxide = 35.0 mL  1 cm3 = 1 mL  35.0 cm3 = 35.0 mL  Density of dimethyl…

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.