Express the following numbers as decimals:(a) 1.52 × 10−2 , (b) 7.78 × 10−8 , (c) 1 × 10−6, (d) 1.6001 × 103.

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10- cm What is…

A: The relation between cm and nm is - 1 cm = 1 x 107 nm

Q: A wooden block, 10" x 10" x 2.0", weighs 3 ib 6 oz.  What is the density of the wood in ounces per…

A:

Q: The density of silver is 10.5 g/cm3. What would be the mass in grams of a piece of silver that…

A: Given that  Density of silver (Ag) = 10.5 gm/cm3 volume occupied by silver (Ag) = 23.6 cm3 We know…

Q: РОН 3D 10.8 1.4 x 104 М NaOH 3.1 х 10% М НСІ [Он] %3 1.1 х 10° М [н]3 2.0 х 10м

A:

Q: Name the SI base units that are important in chemistry,and give the SI units for expressing the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: If mercury (density = 13.6 g/cm3) at a height of 895 mm Hg in a mercury barometer is replaced with…

A: According to Boyle's law temperature remaining constant ,the volume of a given mass of a gas is…

Q: 4. The density of a proton is approximately 4.0 x 1014 g/cm°. If the mass of the proton is 1.7 x…

A:

Q: When rounding the number 2.348615 to 4 significant figures, what is the correct value?

A:

Q: When the calculation (1.0453x10-1.4) x 1.604 is carried out, the number of significant figures in…

A:

Q: The average radius of a molecule of lysozyme, an enzyme intears, is 1430 pm. What is its radius in…

A: Length can be measured in different units such as meter, kilometer, picometer, centimeter, nanometer…

Q: The diameter of a copper (Cu) atom is roughly 1.3 x 10-10 m. How many times can you divide evenly a…

A: Given :- Length of copper wire = 10 cm Diameter of wire = 1.3 × 10-10 m

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10 cm . What is…

A:

Q: The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0 x…

A: Given, Radius of the nucleus = 1.0 x 10-13 cm ( 1.0 x 10-15 m) Radius of the hydrogen atom = 52.9 pm…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 x 1o 4m3 in…

A:

Q: What is the volume, in L, of a room that is 8.00 ft x 10.00 ft x 10.0 ft?

A: The volume in liters has to be determined. Some of the common conversion factors that will be useful…

Q: The diameter of a red blood cell is about 3 × 10−4 in. What is its diameter in centimeters?

A: Red blood cell (RBC) is the component of blood. It helps in the transport of oxygen to the body…

Q: A swimming pool has average dimensions of 40 feet by 20 feet by 6.0 feet. Given the density of water…

A: The formula of density is given as follows: Rearranging the terms,it becomes

Q: Given: 1 lb (pound) = 16 oz (ounces), and 1 lb = 453.6 g, what is 5040 oz (ounces) in %3D kilograms?

A: Conversion factor for the conversion of mass from ounces to pound is 1 lb16 oz. Conversion factor…

Q: 1. Perform the following calculations and give the answer rounded to the correct number of…

A:

Q: A thin sheet of nickel measured 5.00 cm by 7.00 cm was found to weigh 0.350 g. If the density of…

A: Given : Mass of Nickel sheet = 0.350 g Length of sheet = 5.00 cm  Width of sheet = 7.00 cm

Q: What is the volume in cm3 of 1.8 cubic feet?

A: volume in cm3 of 1.8 cubic feet?

Q: mi/hr

A:

Q: THe density of aluminium is 2.7 g/cm3. what is the mass, in grams, of a piece of aluminium foil that…

A: Given, density of aluminium is 2.7 g/cm3

Q: A jet airplane reaches 887. km/h on a certain flight. How long does it take to cover 454. m? Set the…

A:

Q: If a troy pound equals 12 troy ounces, and a troy ounce equals 31.1 grams, what is the mass in…

A: Given: 1 troy pound=12 troy ounces 1 troy ounce=31.1 grams

Q: If the price of gold is $1,318.61 per troy ounce (1 troy ounce is exactly 31.1035 grams), what is…

A: Given   The price of gold is $1,318.61 per troy ounce. The second given price is $1,000,000. The…

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

A:

Q: How do I know the number of significant figures if the decimal notation is 8,725 km and the scientic…

A:

Q: The average radius of a molecule of lysozyme, an enzyme in tears, is 1430. pm. What is its radius in…

A: Length can be measured in different units such as meter, kilometer, picometer, centimeter, nanometer…

Q: The density of methanol at 20.0 oC is 0.791 g/mL.  What is the mass, in grams, of a 280. mL sample?

A: Given : density of methanol = 0.791 g/mL And volume of methanol = 280 mL

Q: Express the answer to the following calculations in proper number of significant figures. 154.29)…

A:

Q: The average speed of the International Space Station as it orbits the earth is 7710 m/s.  What is…

A: Distance can be measured in different units such as meters , centimeters , kilometers , miles  Some…

Q: Given that there are 220.0 yards in 1.000 furlong, 2.54 cm in 1.00 inches, and two weeks in a…

A:

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

A:

Q: Bacteria vary somewhat in size, but a diameter of 2.0 micrometers is not unusual. What would the…

A: Given, Diameter of the bacteria d = 2.0 μm Radius r = d/2 = 2.0/2 = 1.0 μm The shape is assumed to…

Q: The density of air at ordinary atmospheric pressure and 25 degrees Celsius is 1.19 g/L. What is the…

A: Given that density of air = 1.19g/L  Dimensions of room = 14.5*16.5*8.0 feet

Q: When 2.61×103 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is…

A: Addition problemHere we have to add,2.61x10^3 + 11.7 + 0.22Add zeros after number to make it of…

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

Q: The radius of a copper (Cu) atom is roughly 1.3 × 10−10 m. How many times can you divide evenly a…

A: The radius is given as, 1.3 x 10-10 m. The diameter will be 2.6 x 10-10 m. Length of copper piece =…

Q: How many significant figures are in the number 8,600,000?

A: Significant figures are meaningful digits which are known with certainty. The number of significant…

Q: . Suppose you measure the weight of a metal to be 160.5 g and then you place it in a graduated…

A: Mass of metal = 160.5g  Volume of solid metal and liquid = 248.2ml Volume of (metal + water) =…

Q: Perform the following arithmetic operations, and report the result to the proper number of…

A: Significant figure can be defined as the total number of the digits present in a number including…

Q: he volume occupied by the egg whites from four “large” eggs is 112 mL. The mass of the egg whites…

A: Given : volume of 4 egg whites = 112 mL And mass of 4 egg whites = 120 g

Q: How many micrograms are there in (5.41x10^4) picograms?

A:

Q: 8. The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 x 10-8 cm.…

A: Given, Distance between the centres of two oxygen atom in an oxygen molecule (d)= 1.21 × 10-8 cm…

Q: What is the speed of light in miles per hour? Express your answer in scientific notation. The speed…

A: The speed of light = 299,792,458 m/ s

Q: The mass of a glass beaker is known to be 25.1 g. Approximately 5 mL of water areadded, and the mass…

A: Given, mass of a glass beaker = 25.1g

Q: How far does light travel in 4.0μs?

A:

Q: a thin sheet of nickel measured 5.00 cm by 7.00 cm was found to weigh .350 g. if the density of…

A:

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 ×…

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.