B. Perform the following calculations, and give the correct number of significant figures in the answer, using scientific notation if necessary. 9. An architect designs a room that has interior measurements of 50.0 feet by 30.0 feet by 10.0 feet. What is the volume of the room in cubic feet?

Q: How many cubic cm are there in 2.11 yards^3

A: Step 1-The question is to change the units from yards3 to cm3.

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

Q: Gold, which has a density of 19.32g/cm^3, is sold by the troy ounce, which is 31.103 g. What is the…

A: We will use this formula, Volume = Mass/density

Q: In a laboratory, you determine that the density of a certain solid is 5.23 x 10 ° kg/mm. Convert…

A:

Q: Convert 25.5⁢ m^2 to square centimeters.

A: Meter square m2 and square centimeters cm2 are the units of area. We know that meter and centimeter…

Q: The average person's step covers 2.5 feet. Some health experts recommend getting 10,000 steps a day.…

A: First we need to calculate the distance covered in feet in 10,000 steps using the average step…

Q: It takes about 334 miles (mi) to travel from Dublin, GA to Orlando, FL. What is this distance in Mm…

A:

Q: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

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: A chemistry student needs 15.0mL of tetrahydrofuran for an experiment. By consulting the CRC…

A:

Q: hemist must dilute 95.2 mL of 1.14 mM aqueous magnesium fluoride (MgF₂) solution until the…

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: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: The mass of Earth is 5.98 ×10^24kg. What is the mass expressed in tera-grams?

A: Given: The mass of the earth = 5.98×1024 kg We have to find the mass in teragrams.

Q: he level of water in a graduated cylinder measured 48.8 mL. An irregularly-shaped piece of metal was…

A:

Q: pure liquid, represented in the figure, has a density of 1.43 g/cm. Which TWO models and statements…

A: Density is the amount of substance in unit volume. It is unique to a substance. Density of a…

Q: the density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

Q: Given that the air in a building has a density of 1.184 × 10-3 g/cm3, how much does the air weigh…

A: room is rectangular in shape  width = 30.0 feet and 7.0 inches = 30.584 feet  length =41.0 feet…

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: Chemistry

A: According to significant figure rule the number have least significant digit known as limiting term.…

Q: A rock weighing 87.9 grams was placed in 115 ml of water. The level of the water rose to 154 ml.…

A:

Q: Express the following sum with the correct number of significant figures: 1.9m + 142.5cm + 6.27 * 10…

A: Given -> 1.9m + 142.5cm + 6.27×105micrometer

Q: What is the circumference in kilometers (km)? in meters (m) (1 mi = 1.6093 km)

A:

Q: A hectacre (1.0000 x 104 m2) is a metric unit of area analogous to an acre. How many square feet are…

A: 1 feet consists of 0.3048 m and 1 square feet consists of 0.093 m2. 1 hectare consists of 10000 m2 5…

Q: mass of the necklace

A: This is simply a question of density. As we know that by using concept of density, we can calculate…

Q: The mass of a uranium atom is 3.9526 × 10-22 grams. What is this value in nanograms? In your…

A: The mass of uranium atom = 3.9526×10–22 grams

Q: The metric system uses prefixes to represent larger or smaller amounts based on the number ten. What…

A:

Q: A stack of paper has a volume of 187 cube inches Now all the sheets are laid out on the floor,…

A: Given: Volume of a stack of paper = 187 cubic inches Area covered by paper       = 46,750 square…

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

A: volume in cm3 of 1.8 cubic feet?

Q: A student measures a block to weigh 127.95 grams what would this mass be in milograms with the…

A: Given – Mass of block = 127.95 g   To find - convert g to mg

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: What is the volume of a box in cm^3 if its dimensions are 7 inches x 7.7 inches x 10.7 inches? 1…

A: Given dimensions has to be converted from inches to cm.

Q: 4) Gold, which has a density of 19.32 g/cm3, is sold by the troy ounce (abbreviated oz t), which is…

A: According to the question, The mass of the gold is given by = 31.103 g The density of the gold is…

Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: gold is one of the densest metals, having a density of 19.3g/cm^3. If i have a gold sample that…

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

Q: Calculate the volume in mL  of the potassium dichromate stock solution that the chemist should pour…

A:

Q: If a 1.00 L beaker of water was converted into water vapor at 100 C under standard atmospheric…

A:

Q: How much does a copper sphere with a radius of 12.0 inches weigh in pounds? The density of copper is…

A: Given:Radius of copper sphere = 12.0 inDensity of copper = 8.96 g/cm3

Q: A jet airplane reaches 682. km/h on a certain flight. How long does it take to cover 342. m? Set the…

A: Given Speed (v) = 682 km/h Distance to be travelled (D) = 342 m = 342 × 10-3 km  Time taken (t)t = D…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.