The diameter of a deoxyribonucleic acid (DNA) molecule is about 20 angstroms. Express the surface area of the molecule in a square meters and square inches.

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: What is the density of gold 19.3 g/cm3 in kg/m3?

A: Given: 19.3 g/cm3

Q: A rectangular solid measures 10.0 cm by 4.1 cm by 2.0 cm. The mass of this solid is 98.4 g.…

A: Given information is as follows; Rectangular solid measures = 10.0 cm by 4.1 cm by 2.0 cm Mass of…

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…

Q: The dimensions of a box are 1.2 feet by 0.50 feet by 0.75 feet. Calculate the volume of the box in…

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Q: An object weighing 12.22 g is added to 24.97 mL of water in a graduated cylinder.  The water level…

A: Option 4.54 g/cm3 is correct. Given that,  Mass of solid object, m = 12.22 g Volume of water in…

Q: A piece of gold ingot has a mass of 257 g and a volume of 13.3 cm3. Calculate the density of gold in…

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

Q: The mass of an object was found to be 28.90 g. When this object was dropped in a graduated cylinder…

A: Given, mass of object =28.90 gramthis object was dropped in a graduated cylinder partially filled…

Q: a laboratory apparatus that measures volume between 0.1 to 1.5 ml?

A: A long thin apparatus used to measure the volume between 0.1 to 1.5 mL accurately. This apparatus is…

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: You make a cake that has a mass of 300 grams and fits in a cake pan that is 30 by 10 by 6.0…

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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: A 10 mL graduated cylinder has a height of 7.12 inches. Convert From: height in m height in cm…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: zinc and copper are used in the measurement of food. Are there other topics possible

A: A question based on measurement that is to be accomplished.

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…

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: A gallon (3.78 L) of latex paint can cover 385 ft 2 of the surface of a wall. What is the average…

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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 person is 1.790 yards tall. How tall is he in cm? 1 yd = 3 ft, 1 in = 2.54 cm O 1.728 cm 4.801 cm…

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Q: volume

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Q: What is the volume of an object that displaces water in a graduated cylinder from 10.8 mL to 14.7…

A: Given:The initial volume level of water = 10.8 mLThe final volume level of water = 14.7 mLWe need…

Q: A rectangle has a length pf 12.5 cm a width of 2.75 mm. Calculate the area in ft^2.

A: Area of a rectangle is given by,         area = length x width

Q: A backyard swimming pool holds a volume of 190 cubic yards (yd3) of water. How many of the following…

A: Given:A backyard swimming pool holds a volume of 190 cubic yards of water.  The density of water is…

Q: What is 16.7 cubic feet expressed in cubic centimeters?  ( 1 in = 2.54 cm)     _______[a]_______cm3

A: Inorder to convert cubic feet to cubic centimetres, for an approximate result, multiply the volume…

Q: Polycarbonate plastic has a density of 1.2 g/cm3 . A tray is constructed from a sheet of…

A: Density of a substance is given by the ratio of mass to the volume. Density = MassVolume It is the…

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: 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: Length of foil Width of foil 13.10 cm 9.50 cm 9.745 g Mass of foil Use the data in the table to…

A: Given the mass of foil, m = 9.745 g density of foil, d = 2.6989 g/mL Conversion factors: 2.6989 g =…

Q: The length of a track race known as "The Olympic Mile" is actually 1500.0 m. What percentage of a…

A: It is given that the length of a track race having a name of Olympic mile is 1500 m, and the…

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

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Q: A spherical ball of Lead has a diameter of 7.5 cm. What is the mass of the sphere if lead has a…

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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: Length:3.55 cm Width:2.55 cm Mass:0.338 g   Volume of aluminum foil (cm3)

A: For given aluminum foil we have,  Length:3.55 cm Width:2.55 cm Mass:0.338 g  We know the formula…

Q: What is the density of this object?

A: Density is the ratio of mass to volume.  density = mass/volume

Q: Vegetable oil has a density of 0.92 g/cm³. Which of these substances would float on vegetable oil?…

A: Given: Density of the vegetable oil = 0.92 g/cm3. The phenomenon of floating depends on the…

Q: 12 grams of water occupies:  1 cm ^ 3; 1.2 cm ^ 3; 12 cm ^ 3; 120 cm ^ 3

A: Given information, mass of water = 12 Volume = ?

Q: A can of Diet Coke has a mass of 362.4 g and a volume of 380. mL. In which of the following liquids…

A: Since the diet coke will float on a liquid which will have density more than the density of diet…

Q: A chemist’s 50-Trillion Angstrom Run  would be an archeologist’s 10,900 cubit run. How long is one…

A: 50 Trillion Angstrom is converted into cm.

Q: Density of Water Average Density of Water 0.997 g/mL 0.980 g/mL 0.984 g/mL

A: What is the average?

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: 0.220-kg sample of methylene chloride has a density of 1.326 g/cm3. Calculate its volume.

A: Volume=mass/density use this and get the answer

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

A: Density= Mass/volume  Mass=density ×volume.

Q: If the height of a 100 mL graduated cylinder is 18.42cm what is the height in m, inches, km, & feet…

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Q: Calculate the volume of a book with the following dimensions: length = 28.3 cm, width = 22.2 cm,…

A: Volume of the book can be calculated by using the formula given below as; Volume = Length × Width ×…

Q: The speed of light in a vacuum is 3.00 x 108 m/s. What is the speed of light in kilometers per hour…

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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…

A: Given, Volume of water = 3.73 × 108 km3

Q: a homeowner no longer desires to have a pool in their backyard. given that the volume of the pool is…

A: Given, Volume  = 52.5 ft3 Density = 1.89 g/cm3 mass = ? kg