To identify a liquid substance, a student determined itsdensity. Using a graduated cylinder, she measured out a 45-mLsample of the substance. She then measured the mass of thesample, finding that it weighed 38.5 g. She knew that the substancehad to be either isopropyl alcohol 1density 0.785 g>mL2or toluene 1density 0.866 g>mL2. What are the calculated densityand the probable identity of the substance?

Q: Gold has a density of 19.31 g/cm ^3. How much volume in cL would 7.0kg of gold occupy/?

A:

Q: A 357.0 mL sample of carbon dioxide was heated to 393 K. If the volume of the carbon dioxide sample…

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Q: The density of helium gas under certain conditions is found to be 0.164 kg/m³. What is the volume in…

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Q: An empty container has a mass of 2.8g. If we added 35.57mL of liquid to the container, the new mass…

A: Density is mass per unit volume.

Q: A citrus dealer in Florida sells boxes of 100 oranges at a roadside stand. The boxes routinelyare…

A: Given data contains, The average weight of orange is 7.2 ounces. Average weight of the boxes is 3.2…

Q: What isthe density (g/mL) of an object that has a mass of 14.01 grams and, when placed into a…

A: This is a method to find out the density of any substance.Given , The mass of the substance is 14.01…

Q: the liquid 2,3 butanedione has a density of 0.981 g/ml at 18.0 degree celcius.If a 103 gram sample…

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

Q: A chemistry student needs 70.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: 13. The speed of a particular automobile is 45 mph (miles per hour). Use the following relationships…

A: In this question we have to convert the unit of speed.

Q: A pycnometer (Figure 1) is a special flask often used for measuring the densities of substances.…

A: The volume of a given liquid is defined as the amount of the space occupied by the liquid that fully…

Q: The liquids propyl cyanide has a density of 0.794 g/ml at 20.0 degree celcius.If a 138 gram sample…

A: The given density of propyl cyanide = 0.794 g/ml Required mass of propyl cyanide = 138 g

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A: To calculate the volume of air in the bottle when it's cooled to -196°C, we need to use the ideal…

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

A: Accurate measurement :- A measurement is said to be accurate if it is very close to the actual…

Q: A9.55g sample of a solid was placed in a 15mL flask. The remaining volume was filled with benzene in…

A: Given total mass =19.33 g  mass of solid =9.55 g  Thus mass of benzene =Total mass- Mass of…

Q: Calculate the volume in milliliters occupied by one molecule of ethyl alcohol, C2H5OHC2H5OH, in a…

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Q: The density of gold is 19.32g/cm^3 at 20 degrees C. If 25.75g of pure gold nuggets is added to a…

A:

Q: if a 2.50 g block of metal with a density of 6.72 g per cm^3 is dropped into a graduated cylinder…

A: Density = MassVolume So, volume = massdensity

Q: A 505.9 mL sample of carbon dioxide was heated to 351 K. If the volume of the carbon dioxide sample…

A:

Q: mass of the necklace

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Q: Complete the table below. ML = 600 cs = 60 dg mm = = X 2 000 000 L S 0 g Ś 2 m

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Q: Which of the statements below are true of the substance represented in the diagram?

A: Among solid, liquid, and gas, the arrangement of atoms are different. The particles in a solid are…

Q: The density of aluminum is 2.702 g/cm3. If an aluminum cylinder with a mass of 32.154 g is dropped…

A: SOLUTION Given values, Mass of cylinder = 32.154g Initial volume of water  = 15.9 mL Density of…

Q: convert 7.424 x 10 ^-19 L/pm^2 to gal/ m^2. use dimensional analysis

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Q: A 10.00mL sample of liquid is added to a flask with a mass of 90.05g. The mass of the flask and…

A: Given, Volume of liquid =10.0 mL mass of flask =90.05 g mass of flask and liquid =98.0 g

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: A 125mL flask and stopper have a mass of 79.310g. A 25.0mL sample of an unknown volatile liquid is…

A: Answer:- This question is answered by using the simple concept of calculation of density using the…

Q: 1. A 25 mL flask is known to hold a total volume of 27.64 mL when completely filled. The empty flask…

A: Given ,Volume of falsk = 25 mLTotal volume it can hold = 27.64 mLMass of flask = 45.897 gMass of…

Q: The density of a certain metal is (6.60x10^0) g/cm3. What is the mass in grams of a sample of this…

A: Given the density of a certain metal = 6.60 × 100 gm/cm3 So D = 6.60 × 1 = 6.60 gm/cm3 Also given…

Q: In the movie The Italian Job, thieves steal gold bullion. One plan is to carry the ingots of gold…

A: Given : Volume of suitcase = 4.36 x 104 cm3 approx. Density of gold = 19.3 g/cm3  And weight of…

Q: Determine the density of water at 34 °C in g/mL?

A: Density = Mass/Volume And Volume ∞ Temperature As the temperature increases volume increases and…

Q: A 270.3 mL sample of carbon dioxide was heated to 303 K. If the volume of the carbon dioxide sample…

A: Given;

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Q: A chemist mixes two liquids, A and B, to form a homogeneous mixture. The densities of the liquids…

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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.