The density of helium at standard temperature and pressure is 0.166 g/L. What volume in liters would  3100 mg of helium gas occupy? Express your answer with an appropriate number of significant figures.

Q: 3.5 in^3 of mercury to its volume in milliliters.

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Q: Liquid hexane (CH; (CH2),CH CH, will react with gaseous oxygen (0,) to produce gaseous carbon…

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Q: The gas density of water in a room measuring 4.12 m x 6.44 m x 5.39 m is 1.08 ug/cm3. Calculate the…

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Q: A cyclist travels at a rate of (2.30x10^1) miles per hour. At this speed, how many minutes would it…

A: Speed of cyclist = 2.30 x 10 = 23 mi/hour Distance to be covered = 2.25 x 102 = 225 km Time to…

Q: A chemist prepares a solution of sodium chloride (NaC1) by weighing out 7.20 g of sodium chloride…

A: Given: Mass of sodium chloride (NaCl) = 7.20 g. Volume of the solution made = 50 mL. We have to…

Q: Convert 1.00m^2 to units of mm^2.  (Express answer in scientific notation.)

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Q: In the opening scene of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol…

A: A) Given : mass of sand = mass of idol And volume of idol = 1.5 L Since mass = density X volume…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: perform the indicated calculation. Express your answer with the correct number of significant…

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Q: How many grams of C3H8 contain 4.95 x 10E23 hydrogen atoms? How many anions are there in 2.50 g of…

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Q: The density of air at ordinary atmospheric pressure and 25 oC is 1.19 g/L. What is the mass, in kg,…

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Q: A sample of liquid rocket fuel is stored in a sphere-shaped fuel tank that has an inner diameter of…

A: Solution Light metals have high heat unharness, creating them enticing as fuels or fuel elements. As…

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: A chemistry student needs 15.0 g of ethanolamine for an experiment. By consulting the CRC Handbook…

A: According to the question,The student needs the mass of ethanolamine = 15.0 g.The density of the…

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

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Q: A chemist adds 975.0 mL of a 9.36 g/dL sodium hyposulfate (Na, S,0,) solution to a flask. Calculate…

A: The ratio of moles to the volume in liters is known as molarity.

Q: Carry out the following calculations, making sure that your answer has the correct number of…

A: Given that, 8.69 mL ÷ (15.3 mL - 8.94 mL) We have to calculate and result should have correct…

Q: A physical chemist measures the temperature I inside a vacuum chamber. Here is the result. T= -40.1…

A: Here we are asked to find the temperature in SI unit.SI unit of temperature is K, so we need to…

Q: Convert (3.706x10^9) feet to zulbars (Zb).  Some conversions: 5280 feet = 1 mile; 1 furlong = 10…

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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 chemical engineer must report the average volume of a certain pollutant produced by the plants…

A: According to the Rules for determining the number of significant figures in an answer : The result…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: The answer to a multiplication or division is rounded off to the same number is significant figures…

Q: Convert 2.26 x 10^-6 to each unit. Express your answer in milligrams to three significant figures.…

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Q: Normal body temperature is 98.4°F.  Use your Celsius temperature from the above question (81) to…

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Q: A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air…

A: The objective of this question is to calculate the pressure to which a certain volume of air must be…

Q: The density of iron is 7.87 g/mL. What is the mass of a 4.00 cm × 4.00 cm × cm × 1.00 cm block of…

A: given density = 7.87 g/ml cross section = 4.00 cm × 4.00 cm × 1.00 cm

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: Calculate the mass of iron(III) oxide (Fe₂O3) that contains a million (1.0 × 106) oxygen atoms. Be…

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Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: In given question, multiply and divide given measurements and answers to  correct significant figure…

Q: Since density depends on the mass and volume of an object, we need both of these values combined in…

A: Given information,       Mass of iron plate = 30.0 kg       Volume = 3810 cm3.

Q: Sulfuric acid solution is the electrolyte used in car batteries. Sulfuric acid is sold as a…

A: we have to calculate the volume of concentrated sulfuric acid solution

Q: Hydrogen gas and nitrogen gas react to form ammonia gas. What volume of ammonia would be produced by…

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Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: We have to find the number of molecules of water in a given volume. The density of water is also…

Q: While in Europe, if you drive 101 km per day, how much money would you spend on gas in one week if…

A: Distance travelled by car = 101 km/dayCost of gas = 1.10 euro/LMileage of gas = 30.0 mi/gal1 euro =…

Q: A chemistry student needs 65.0 mL of diethylamine for an experiment. By consulting the CRC Handbook…

A: The relation between mass and volume is given by: Density = mass / volume so, mass = density x…

Q: The maximum dosage of medicine A is listed as 20.0 mg per kg of body weight per day. The adult…

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Q: Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water .…

A: Given  Mass of hexane= 16.4 g mass of oxygen = 25.0 g to find mass of carbon dioxide =?

Q: A chemistry student needs 90.0 mL of carbon tetrachloride for an experiment. By consulting the CRC…

A: Given, Note: 1 mL = 1 cm3 Volume of Carbon tetrachloride = 90.0 mL = 90.0 cm3 Density of Carbon…

Q: If the average density of moon is 5.13 g/cm³, what is the mass of moon in grams? (the radius of moon…

A: Given: Density of moon = 5.13 g/cm3  And radius of moon = 1737 Km = 1.737 × 108 cm…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

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.