2. A balloon has a total mass of 2000 kg. What is the minimum volume of air that it must displace if it is to float in air at sea level? P air = 1.29 kg/m3.

Q: An irregularly-shaped piece of aluminum (Al) has a mass of 86.1 grams. What is the volume of this…

A:

Q: The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure…

A: Density of an object is the amount of mass the object has in a given volume of that object. If the…

Q: Suppose you have Avogadro\'s number of mini marshmallows and use them to cover the state of Nebraska…

A: It is required to calculate, to what height above the surface, in km, will the mini marshmallow…

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: Q2: F The Mass the earth is (5-95 x10) Ry- colenlak the Average dansly ?(hg/mt}

A: Mass of earth = 5.95 × 1024 kg

Q: Mercury has a density of 13.60 g/cm3. What’s the volume of 2.4 mole of mercury?

A: Given: The moles of Hg, (n) =2.4 moles. The density of mercury, (ρ) = 13.60 g/cm3

Q: Diamond is a form of elemental carbon. Diamonds are weighed by carats, where 1 carat = 200 mg.…

A: Given data: Mass of 1 carat diamond = 200 mg Radius of 2.5 carat diamond = 3.24 mm

Q: 1. What is the density of a solid if a sample occupying a volume of 16.53 mL wei 85.4 g? 2. Why does…

A: Given: The mass of the solid is 85.4 g. The volume occupied is 16.53 mL.

Q: If the mass of a gas is 27.32 g and its volume is normally 18000 cm3, find its molecular mass.

A:

Q: A small hole in the wing of a space shuttle requires a 18.7 cm patch. (a) What is the patch's area…

A: Area of the patch is 18.7 cm2.

Q: You are renting a car and you wish to travel a distance of 850. miles. If the car has a mileage of…

A: Given: Distance to be travelled = 850 miles Mileage of car = 10.1 km/L To calculate: The Gallons of…

Q: 1.7 What Are Density and Specific Le volume of a rock weighing 1.075 kg is 334.5 hat is the density…

A: Density  = Mass (g) Volume (ml)

Q: You are asked to perform an experiment to determine the density of square block below. In order to…

A: Concept: Density is defined as mass per unit volume. Density =massVolume

Q: The diameter of a DNA alpha helix is about 8 ✕ 10−8 in. What is its diameter in centimeters?

A: Given: Diameter of DNA α helix= 8×10-8 inWe need to find diameter in cm

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: A small hole in the wing of a space shuttle requires a 17.7 cm2 patch. (a) What is the patch’s area…

A: (a) The patch area given is 17.7 cm2 Using conversion factors 1 cm2 = 10-4 m2 1m2 = 10-6 km2 So,

Q: Gold is very dense metal with a density of 19.3 g/cm3, what is the volume of a 0.255 kg gold sample?

A: Given that;     Density=19.3 g/cm2     Mass=0.255 kg     Volume=?

Q: The density of liquid bromine is 2.928 glcm³. The volume of 29.572 g sample is?

A: Density can be defined as mass of substance per unit volume. The mathematical expression for density…

Q: 2. A chemistry teacher searching for his golf ball in the trees this summer found a magical pool of…

A:

Q: The density of mercury is 13.6 g/cm³. What us the mass of 6.50³ of mercury?

A: Given, density of mercury = 13.6g/cm3 volume of mercury = 6.50 cm3 mass = to be find out

Q: An old rule of thumb in cooking says: “A pint’s a pound the world around.” What is the density in…

A: Solution- Since, 1pt=11 b 11b=453 g =473.176 millilitres

Q: A cat has volume 0.08 m³ and density 670 kg/m³. Find the mass of the cat ?

A:

Q: What mass of solid lead would displace exactly 234.6 liters of water? Given that lead has a density…

A: Unit of volume and density is converted as follows:

Q: a room contains 4.23 x 10^24 molecules of oxygen. what is the mass of oxygen in the room?

A: Number of mole of substance is calculated by dividing mass of substance (m) to molar mass (M) of it…

Q: The density of aluminum is 2.7 g/mL. How many liters would 12.8 pounds of aluminum take up?

A: Given, Density of aluminium = 2.7 g/mL Note: 1 pound = 453.592 g Mass of aluminium = 12.8 pounds =…

Q: A sphere of pure iron metalcontains 9.57 x 1024Fe atoms. What is the radius of the sphere in…

A:

Q: the distance between the oxygen atom and a hydrogen atom in a water molecule is 95.7 pm  a. what is…

A: Given : distance between O and H = 95.7 pm

Q: Gold can be hammered into extremely thin sheets calledgold leaf. An architect wants to cover a 100…

A:

Q: A cubic piece of metalmeasures 5.00 cm on each edge. If the metal is nickel, whosedensity is 8.90…

A: The given data contains, volume =5 cm Density =8.90 g/cm3

Q: Suppose you have Avogadro\'s number of mini marshmallows and use them to cover the state of Wyoming…

A:

Q: The density of aluminum is 2.70 g/cm3. How much space (volume) would 10.0 grams of aluminum occupy?

A: Given datas –  density of aluminium  = 2.70 g/cm3 or g/mL  mass of aluminium  = 10.0 g

Q: 2.3E23 molecules of sugar (CH120,) would weigh how many grams?

A: The moles are the unit of the substance and it is explained as 6.022×1023 atoms/molecules/ions. It…

Q: 2. Aluminum has a density of 2.70 g/cm. What would be the mass of a sample whose volume is 10.0 cm??…

A: Density is given by the ratio of mass of the substance to its volume.

Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Prior to 1983, pennies were made almost entirely of copper. If the scrap value of copper is $3.89…

A: Given: Mass of each penny = 2.95 g = 0.00650364 lb Scrap value of copper per pound = $3.89 Number of…

Q: Green cube: mass = 37.3g, s=2.20cm How much water would your object displace ml. Will your object…

A: Density=MassVolume If density of Object is greater than water, the Object will Sink and Vice-versa.

Q: A particular paint has a density of O.914g/cm3. You need to cover a wall that is 7.6m long and 2.74m…

A: Given data  Density of paint = 0.914 g/cm3  Length of wall = 7.6 m Height of wall = 2.74 m Thickness…

Q: 2.) 5. An Olympic-size pool is 50.0 m long ang 25.0 m wide. How many gallons of water (density = 1.0…

A:

Q: The Deepwater Horizon oil spill released approx. 35000 barrels of crude oil per day into the Gulf of…

A: The Deepwater Horizon oil spill released approx. 35000 barrels of crude oil per day. An oil barrel…

Q: What is the volume of 12.0 grams of an alcohol whose density is 0.920 g/mL?

A: Since density is defined as the mass of compound per volume of the compound Hence density = mass /…

Q: 3. The mass of a gold nugget was measured and found to be 0.00320 grams. How many significant…

A: 3) Given : mass of gold nugget = 0.00320 g

Q: What is the volume of a piece of diamond (ρ = 3.5 g/cm3) that has a mass of 0.65 kg?

A: Given : density of diamond = ρ = 3.5 g/cm3  And mass of diamond = 0.65 Kg

Q: The price of a ream of paper is $2.90. There are 250 sheets of paper in a ream. If a sheet of paper…

A:

Q: A small hole in the wing of a space shuttle requires a 20.3 cm2 patch. (a) What is the patch's area…

A: Unit conversion is an important parameter of measurement

Q: A student was given Mg ribbon that's 189 mg and 98.7 mm long. If the ribbon is uniform, what length…

A: Given: 189 mg Mg ribbon has a length of 98.7 mm. Ribbon is uniform Volume of H2 = 44.4 mL…

Q: Suppose some measurements are made on two different homogeneous stones to find out if they are made…

A:

Q: An irregularly shaped rock weighs 268.42 kg. It is placed in a cylinder that had 50.6 L of water.…

A:

Q: density of water initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203…

A: In question Following informations given -   Initial mass of erlenmeyer flask = 123.221 g Final mass…

Q: the mass of fuel in an airplane must be determined before takeoff. A jet contains 11505L of fuel…

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

Q: The most common oxide of vanadium, V2O5, is used as a catalyst in manufacturing sulfuric acid H2…

A:

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.