The red supergiant star in Orion is called Betelgeuse, and its distance is 640 ly. What is the distance in parsecs?

Q: Elaine needs 5.55g of sea salt. She has 4.0 L of water from the Atlantic Ocean. The density of this…

A: Given information: Mass of sea water = 5.55 g Density of water = 1.027 g/mL

Q: Lake Baikal in Siberia is the largest freshwater body on Earth by volume, at 5666 mi What is this…

A: Given: The volume of Lake Baikal in Siberia = 5666 mi3 We have to convert this volume to L.

Q: Lake Baikal in Siberia is the largest freshwater body on Earth by volume, at 5666 mi .What is this…

A:

Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

A: The speed of the light refers to the distance travelled by the light in a given unit of time. The…

Q: What is the mass of 6.00cm3 of mercury, density = 13.5939 g/cm3

A: Given : density of mercury = 13.5939 g/cm3  And volume of mercury = 6.00 cm3

Q: A copper wire (D=8.96g/cm³) has a diameter of 0.25mm. If a sample of this copper wire has a mass of…

A:

Q: 30. The density of the element iridium is 22.65 g/cm³. What's the mass of iridium that occupies a…

A: Given information, Density of iridium = 22.65 g/cm3 Volume = 7.35 mm3 = 7.35*10-3 cm3  (As 1mm =…

Q: The density of a gold nugget is 19.3 g/cm3. If the volume of the gold nugget is 0.00369 L, the mass…

A:

Q: A computer chip has a width of 0.75 in. What is that distance in millimeters?

A: While converting from one unit to another a conversion factor is to be multiplied.

Q: A cubic box is completely filled with 1,331 g of water. What is the length of one side of the box,…

A: Given : the mass of water = 1331 g We know, The density of water  = 1.0 g/cm3 The formula for…

Q: the long ton is exactly equal to 2240 Ib. what is the mass of 1.0 long ton in kilograms?

A: Mass is a base SI unit, which is expressed in the units of kilogram. The other units for the…

Q: If a tiny marble has a radius of 0.25mm, how many marbles can be lined up across the circumference…

A:

Q: If the temperature is -55 °F, what is the corresponding temperature on the Kelvin scale?

A:

Q: If you are going 55 mph, what is your speed in nm per second?

A: We are going at speed of 55 mph.

Q: Aluminum has a density of 2.70 g/cm3. What mass of Al would displace a volume of 10.25 mL?

A: Given that  density = 2.70 g/cm3  Volume = 10.25 mL mass = ? we know that 1 cm3 = 1 mL hence, Volume…

Q: The ionic radius of a sodium ion is 2.27 angstroms (A). What is this length in

A: The relationship between the Å and μm is  1 μm = 104 Å Hence the length in Å X 10-4 μm/ Å = length…

Q: 2.At 25° C, the density of water is 0.997 g/ml. At -10° C, the density of ice is 0.917 g/cm3. If a…

A: Water at 25o present at liquid state and its freezing point is 0oc, So, below 0oc it will show solid…

Q: 1. The radius of a potassium atom is 0.227 nm. Express this radius in the unit centimeters.   2.…

A: In the given question, conversion of the given length measurement.

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: A cyclist rides at an average speed of 24 mi/h. If he wants to bike 195 km, how long (in hours) must…

A: average speed of cyclist=24 mi/hr distance he wants to cover=195 km as 1 km =0.621 mitherefore 195…

Q: radio waves travel at the speed of light, which is 3.00 x 10^8 m/s. How many kilometers will radio…

A: Velocity = displacement /time Velocity = 3*108 m/s 1m = 10-3km 1 min = 60s, 1hr = 60*60 = 3600s 1day…

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: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A: Given: Mass of Earth's crust = 2 ton = 2000 Kg.                             (Since 1 ton = 1000 Kg)…

Q: A package of Aluminum foil contains 50 ft? of folil, which weighs approximately 240.0 grams.…

A: A = 50 ft2 = 46451.5 cm2 m = 240 g d = 2.70 g/cm3 calculate thickness first, D = massvolume V =…

Q: Given that 25.0 mL of mercury has a mass of 340.0 g, calculate (a) the density ofmercury and (b) the…

A: Given: Volume of mercury= 25.0mL Mass of mercury= 340.0g To find: a) The density of the mercury b)…

Q: The distance from the earth to the nearest stars is measured in light-years. Convert the distance…

A:

Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

A: The metre is the length of path travelled by lightin vacuum during a time interval of…

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: The density of aluminum is 2.70g/cm^3. For a block of 275g of aluminum calculate the density in…

A: The volume of aluminium and the number of aluminium atoms present in 275 g aluminium is needed to…

Q: un 1066mm- Icm 4 A gold bar has a mass of 12.4kg. What is its mass in milligrams (mg)? 5. The human…

A:

Q: How do you fint the volume of an element, given the density and mass.  For example, "Determine the…

A: The volume of an element can be calculated from the given below formula if its density and mass are…

Q: A cube with side lengths of 1.81 inches has a mass of 2.91 pounds. What is it’s density in g/cm3?

A: Density indicates the ratio between mass and volume or mass per unit volume. The cgs unit of density…

Q: If an object is traveling at a speed of 400 m/s, how long (in hours) will it take to reach 950.5 km?…

A:

Q: The ionic radius of a sodium ion is 2.27 angstroms (A) . What is this length in um ?

A: Given information, Ionic radius of a sodium ion = 2.27 A° Conversion sequence : A° -> m ->…

Q: What is the ln of 1/time of the time is 449.7 seconds?

A: Given,t=  449.7 seconds

Q: The space shuttle tiles have a density of 0.0074 lb/in3. Approximately 1320 tiles cover a surface of…

A: Density of a substance can be calculated by dividing the mass by volumewhich may be expressed…

Q: The distance from the Earth to the moon is 239,000 miles. The Apollo 11 mission took 73.45 hours to…

A:

Q: a police car on a high speed chase travels at a speed of 85 mi/hr. the chase covered 82.3 miles of…

A: Given,Speed = 85 mi/hrDistance covered = 82.3 miThe time taken can be calculated as:

Q: The population density of worms in a particular field is 35 worms per cubic meter of soil. How many…

A:

Q: A spherical steel ball has a mass of 3.475 g and a diameter of 9.40 mm. What is thedensity of the…

A: Given: mass = 3.475 g diameter = 9.40 mm = 0.940 cm radius = 0.47 cm

Q: Bronze is an alloy made of copper (Cu) and tin (Sn). The composition of the bronze is 79.42% Cu and…

A: Given: Volume of the cylinder = 5212 cm3 Percentage of Cu in bronze = 79.42 % Percentage of Sn in…

Q: The mass of a piece of metal is 19.5061 grams. When the piece of metal was dropped into a graduated…

A: Given, mass of piece of metal = 19.5061 g             Initial volume of water in the graduated…

Q: Racing cars at the Indianapolis Motor Speedway now routinely travel around the track at an average…

A: Average spedd of racing cars = 225 mi/hr Now, convert rhis speed into km/hr by using conversion…

Q: c. 0.756 g/mL to ng/L d. 9.647 x 10 nm/s to m/yr (Assume that the year is 2022).

A:

Q: If a tiny marble had a radius of 0.25 mm, how many marbles can be lined up across the circumference…

A: Given: Radius = 0.25 mm Circumference of earth distance = 24900 miles

Q: Radio waves travel at the speed of light, which is 3.00 x 10⁸ m/s. How many kilometers will radio…

A: Answer The distance traveled by radio messages in one year = 3.154*1012 kilometers Hint Speed of…

Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

A:

Q: The distance between two adjacent peaks on a wave is called the wavelength.(a) The wavelength of a…

A: Given: Wavelength of UV light = 247 nm Wavelength of red light = 6760 pm W1 is the wavelength of the…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.