When 89.329 g of an irregularly shaped sample of cobalt was placed in a container and filled to the 25.00 mL mark with ethyl alcohol, the combined mass of the cobalt and ethyl alcohol was 105.9979 g. What is the density of this element, if the density of the ethyl alcohol is 1.114 g/mL? Assume the volumes are additive

Q: A cube of an unknown metal measures 0.250 cm on one side. The mass of the cube is 0.095 g. Which of…

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Q: Given that 6.02 x 1023 ethanol molecules have a mass of 46.04 g, calculate the number of ethanol…

A: At first, we calculate the volume of the film of ethanol, which is----- 3.08 mm = 0.308 cm 10 cm =…

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: If you report two measurements of mass, 7.42 g and 7.56 g, are the measurements accurate? Are they…

A: If the average values of different measurements are close to correct value, the measurement is…

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold (in grams) in an ingot with the…

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Q: A piece of metal has a mass of 86.24 g and a volume of 13.4mL. What is its density? 0.155 g/mL O…

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Q: In an experiment, 125 cm3 of zinc and 125 cm3 ofiodine are mixed together and the iodine is…

A: Given data Volume of Zinc = 125 cm3  Volume of iodine = 125 cm3  density of Zinc = 7.13 g/cm3…

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: A bank teller is asked to assemble “one-dollar” sets of coins for his clients. Each set is made of…

A: A bank teller is asked to assemble “one-dollar” sets of coins for his clients. Each set is made of…

Q: You want to determine the density of a compound but have only a tiny crystal, and it would be…

A: Given, volume of CHCl3 = 5.50 mL            density of CHCl3 = 1.492 g/mL            volume of CHBr3…

Q: A wonder woman found a piece of silver colored metal while walking around the myscira. she…

A: We should calculate the density of the sample and it can be done as follows: Mass of the sample=13…

Q: An irregularly shaped stone was lowered into a graduated cylinder holding a volume of water equal to…

A: Density :-  The ratio of mass of a substance to the volume occupied by that substance under the…

Q: A student dissolved 230.8 grams of cesium chloride in 100.0 grams of 90 °C water.  The student then…

A: 43.8 g of substance has separated out as solid. The mass of cesium chloride present in dissolved…

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: You can identify a metal using its density. If you have a metal brick that you measured to be 5…

A: A multiple choice question based on identification of metal, which is to be accomplished.

Q: A sample of an ethanol-water solution has a volume of 54.4 cm^3 and a mass of 49.9 g. What is the…

A: The mass of ethanol is - Mass = density×volume Mass = 0.789×54.4 Mass = 42.9216 gram   Then, total…

Q: Ultrapure silicon is used to make solid-state devices, such as computer chips.  If the volume of a…

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Q: A hollow spherical iron ball has a diameter of 15.3 cm and has a mass of 13.5 kilograms. Assuming…

A: The formula to find the volume of iron of a hollow sphere, V is: V = 43πR3 -  43πr3 (or) V =…

Q: A stack of paper has a volume of 187 cube inches Now all the sheets are laid out on the floor,…

A: Given: Volume of a stack of paper = 187 cubic inches Area covered by paper       = 46,750 square…

Q: Read the following descriptions of the element bromine and indicate which are physical properties…

A: Density of a substance is mass of that substance in per unit volume.  Corrosion is change in…

Q: If the density of gas is 0.702 g/mL, what is the mass in grams of 5.0 x 101 mL of gasoline?

A: Given, If the density of gas is 0.702 g/mL,  The mass in grams of 5.0 x 101 mL of gasoline is :

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 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: If the volume of a cube is 21.8 cm3, what is the volume in cubic feet? 54 cm = 1 in, 12 in = 1 ft

A: Given data : Volume of cube = 21.8 cm3 The formula for calculating the volume of cube is  V =…

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: A 25.00 grams sample of a metal is placed carefully in a graduated cylinder, and then benzene is…

A: Given : mass of metal = 25.00 g Mass of metal + benzene = 60.85 g Volume of metal + benzene = 50.00…

Q: The molecular liquid chloroform (CHCl3) has a density of 1.48 g/mL, while the molecular liquid…

A: If a new compound forms by mixing of two reactants, that is a chemical change, means both the…

Q: 25.00 g sample of a solid is placed in a graduated cylinder and then the cylinder is filled to the…

A: Use formula density= mass/volume

Q: Soft wood chips weighing 17.2 kg are placed in an iron vessel and mixed with 150.1 kg water and…

A: (a)

Q: The radius of cesium atom, Cs, 1s 265 pm, and its mass is 2.21 x 10 22 g. What is the density of the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: If a troy pound equals 12 troy ounces, and a troy ounce equals 31.1 grams, what is the mass in…

A: Given: 1 troy pound=12 troy ounces 1 troy ounce=31.1 grams

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

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Q: Assume the recommended single dose of an antihistamine for a child weighing 36–47 lbs is 1.50…

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Q: 10. When an irregularly shaped solid of mass 105 g was placed in a cylinder that contained 25.00 ml…

A: The volume of the water displaced by the body in the cylindrical tub is equal to the volume of the…

Q: The density of a substance is defined as the ratio of the mass to the volume for that substance. Use…

A: A question based on properties of solid that is to be accomplished.

Q: An object with a mass of 0.231 kg has a density of 2.02 g/cm3. What is the volume (cm3) of the…

A: Density is the amount of substance present per unit of volume. Density= mass/ volume

Q: Substance A has a density of 0.30g/ml and substance B has a density of 0.690g/ml. Are the particles…

A: Density = It may be defined as mass of a substance per unit volume.Mathematically,

Q: II) Density a) What is the mass of a rectangular piece of aluminum 160.6 cm × 140.8 cm × 15.2 cm?…

A: • Density=massvolume• mass = clensity×volume• volume of rectangle = l×b×h…

Q: If a sample of clay has a density of 1.7 g/cm3 and it takes up a volume of 0.43 cm3, what is its…

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Q: If a cube of gold has a length of 2.50 cm, what is the mass of the gold sample? Convert 19.3 g cm-3…

A: Given that: Length of  gold cube = 2.50 cm Density of gold = 19.3 g/cm3 Volume of cube = (length)3 =…

Q: The density of mineral oil is 0.834 g/mL. What is the mass in kg of the mineral oil in a cubic…

A: Given that: density of oil = 0.834 g/mL side of a cube = 11 inches. To find: The mass in Kg of…

Q: A sample of tap water contains 1.95 x 103 ppm CaCO3(aq). Assuming the density of tap water is…

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Q: Substance A has a density of 0.30 g/ml and substance B has a density of 0.690 g/ml. Are the…

A: Density of a substance is defined as it mass per unit volume.The density (d), mass (m) and volume…

Q: When a 39.71 g rock was placed in a graduated cylinder with 18.62 mL of water, the water level rose…

A: Ratio of mass to volume is termed as density which can be represented by a formula as:…

Q: the unit of land measure in the english system is the acre, while that in the metric system is the…

A: We have to calculate the area in hectares.

Q: An aluminum cylinder is 10.0cm in length and has a radius of 0.25cm. If the mass of a single Al atom…

A: Length of aluminium cylinder = h = 10cm Radius = r = 0.25cm Mass of single Al atom = 4.48x10^-23 g…

Q: a thin sheet of nickel measured 5.00 cm by 7.00 cm was found to weigh .350 g. if the density of…

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Q: A certain solution is 5.84 % by mass in calcium carbonate (CaCO3).  If the density of the solution…

A: Given that : % by mass of calcium carbonate (CaCO3) =  5.84 % The density of the solution = 1.02…

Q: A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?

A: Given: Weight of beaker = 145.60 g Weight of chemical = 3.467 g