A chemist bought a small piece solid figurine suspected to be gold. Knowing that gold has a density of 19.3 g/cm^3, he chemist decides to determine its density. The figurine is put into a graduated cylinder that contains 32.6 mL of water. The reading with the figurine in the water is 45.2 mL. The mass of the figurine is 225.1g. Is the figurine made of pure gold? explain your reasoning

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

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Q: The density of aluminum is 2.70 g/cm3. A square piece of aluminum foil 22.86 cm on one side weighs…

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A: Generally, the density for a substance is determined by dividing the substance mass with the volume.

Q: Part 2 A block of wood which weighs 64.02 g and has the following dimensions: length of 15.0 cm,…

A: Mass of Wood block = 64.02 g Dimensions of wood block = length of 15.0 cm, width of 11.0 cm and…

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Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: Heptane and water, two immiscible liquids are taken in a cylinder.

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: A rock weighing 87.9 grams was placed in 115 ml of water. The level of the water rose to 154 ml.…

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Q: A student gently drops an object weighing 16.5 g into an open vessel that is full of ethanol, so…

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

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Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

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Q: A piece of metal ore weighs 8.75 g. When a student places it into a graduated cylinder containing…

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

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Q: The density of manganese is 7.21 g/mL, that of calcium chloride is 2.15 g/mL, and that of sodium…

A: Given, Density of manganese = 7.21 g/mL Density of calcium chloride = 2.15 g/mL Density of sodium…

Q: A 200mg piece of gold is hammered into a sheet measuring 2.4ft x 1.0ft, what is the thickness of the…

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Q: An unknown substance was observed and the following information obtained: The unknown substance is…

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Q: What is the density (in g/mL) of a cube that has equal sides of 12 inches and weighs 491 pounds? The…

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Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A: Given data is: Density of heptane = 0.684 g/ml Mass of heptane = 35.8g density of water = 1.00g/ml…

Q: Calculate the density of the following materials for which the mass and volume of samples have been…

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Q: Iridium has a density of 22.42 x 103 kg/m3. The mass of a weighing boat is tared to zero and the…

A: GIVEN: mass of a piece of iridium and the weighing boat = 107.554 g. Initial volume reacding of…

Q: what would be the diameter of a single hair strand has a density of 1.28 g/cm3, mass of 0.30 mg, and…

A: Given: Mass of hair = 0.30 mg = 0.0003 g                                          (Since 1 g = 1000…

Q: After taking measurements of a rectangular solid with a mass of 3.84g, you determined the length to…

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Q: If a block of copper measures 2.00 cm x 4.00 cm x 5 cm and weighs 356 g, what is its density?

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

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Q: A piece of silver metal weighing 194.3 gramas is placed in a graduated cylinder containing 242.0 mL…

A: Given;

Q: The prescribed dose of an injected drug is 1.5 mL. If the syringe is graduated in cubic centimeters…

A: Given: The prescribed dose of the drug = 1.5 mL The dose in cubic centimeters or mark of drawing…

Q: what is the mass (in g) of the lead apron?

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Q: Lithium is a soft, gray solid that has the lowest density of any metal. It is an essential component…

A: The given values for rectangular slab of lithium are: m (mass)=1.49×103 mg=1.49×103×10-3 g=1.49 gl…

Q: A student determined in a set of four experiments that the density of magnesium metal was 1.66…

A: The data is given as follows: 1.66 g/mL, 1.65 g/mL, 1.67 g/mL, and 1.67 g/mL Accepted value for…

Q: he volume occupied by the egg whites from four “large” eggs is 112 mL. The mass of the egg whites…

A: Given : volume of 4 egg whites = 112 mL And mass of 4 egg whites = 120 g

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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: 2. Gold can be hammered into extremely thin sheets called gold leaf. A 200-mg piece of gold (density…

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Q: A small crystal of sucrose (table sugar) had a mass of 6.170 mg. The dimensions of the box-like…

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A: Mass of the metal = 305.5 gVolume of the metal = volume of the water displaced = 269.5 mL – 241 mL =…

Q: a 400 troy ounce gold bar weighs 27.428 pounds, or 12.4441 kg. it measures 7 inches by 3 5/8 inches…

A: Mass of gold bar = 27.428 pounds or 12.441 kg or 12441 g

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: The density of silver is 10.5g/cm^3. What is the mass of a bar of silver in Kilograms, that measures…

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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: Ariel was wondering how much water there was in the sea.  If the total amount of water in the sea is…

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