A typical office has 144 ft2of floor space. Calculate the floorspace in m2(use the proper number of significant figures).

Q: A popular car has an engine that is reported to have a volume of 5840 cm³. What is the size in cubic…

A: Since, 1 inch = 2.54 cm thus,

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: 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: 9. If 86 g of a substance has a volume of 125 cm³, what is the density of the substance?

A:

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

A: Convert the circumference of the earth in millimetres.

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

A:

Q: The density of mercury metal 13.6 g/cm3. How many lbs would a 5.0 L container of mercury weigh?

A: 1 g = 0.00220462 lbs 1 L = 1000 cm3

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

A: conversion from one unit to another unit is an important aspect of measurement

Q: Assigning Appropriate Significant FiguresThe state of Colorado is listed in a road atlas as having a…

A: Given information,        Population in Colorado is 5,546,574         Area of Colorado is 104,091…

Q: The density of pure copper is 8.89g/cm3. Calculate the volume in in3 of a 5.0 KG bar of copper.

A: Mass = 5.0 kg = 5000 g Density = 8.89 g/cm3 Volume = Mass/density                 = 5000/8.89 cm^3…

Q: How many kilometers are in 1.58 x 10^5 feet

A:

Q: Bob and Jill are measuring the height of Mr. Chenet (Mr Chenet is 1.8593 meters tall). Bob gets a…

A: Accuracy It is defined as the closeness of measurement to specific value means we will have one…

Q: Determining the Number of Significant Figures in a Calculated QuantityThe width, length, and height…

A: Width of the box (b) = 15.5 cm Length of the box (l) = 27.3 cm Height of the box (h) = 5.4 cm Volume…

Q: The density of magnesium is 1.7 g/cm 3, and the density of iron is 7.9 g/cm 3. Consider a block of…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: The single proton that forms the nucleus of the hydrogen atom has a radius of approximate 1.0x10-13.…

A: Volume of nucleus and Hydrogen atom is determined as given below,

Q: How many cubic meters (m³) are in 288 liters (L)? Round to the correct number of significant…

A:

Q: The density of mercury is 13.6g/ cm^3. What volume (in quarts) is occupied by 101 g of Hg?

A: As density is the ratio of mass and volume of the substance which is represented by equation 1 in…

Q: How many significant figures are in the number 9.540x107?

A: The given number is = 9.540×10-7

Q: What is the result of the following calculation to the appropriate number of significant figures?…

A: Given :-  16.011 cm × 12.35 cm × 14.762 cm  To determine :-  Answer of the given multiplication…

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

A:

Q: How many significant figures are in the number 9.80 x 104?

A: Significant figures: The number that makes it easy to read or write in simple form is called…

Q: The density of liquid mercury is 13.5 g/cm3. What mass of mercury will fill a 0.500 L container?

A: Given  Density = 13.5 g/cm3 Volume = 0.500 L

Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: The surface area of the earth is approximately (1.92x10^8) square miles. What is this area in square…

A: we know that,  1 square mile = 2.59  square km

Q: A house has an area of 221 m2m2. What is its area in each unit? Express the area in square…

A: The space occupied by a surface of object or a flat shape is known as area.

Q: How many significant figures are in the number 0.0204600? Express this number in scientific…

A: Zeroes before 2 are not countable but after 6 are countable. So it has 6 significant figures.

Q: Express the quantity 254,998 m in each unit.a. km                  b. Mm…

A: Given   The given quantity is 254,998 m.

Q: Perform the calculations, then round the answer to the correct significant figures

A: The answer of following guestion given below

Q: The density of liquid mercury is 13.5 g/cm3. What mass of mercury is required to fill a 2.00L…

A: Density is defined as the mass of the substance per unit volume. Density(d) =MassVolume Given:…

Q: Calculate the density of mercury if 1.00 x 10² g occupies a volume of 7.36 cm3.

A: Solution: Given that, Mass = 1.00 * 102 g Volume = 7.36 cm3  We know that, Density = mass / volume…

Q: The world’s oceans have a combined volume of 3.204 x 10^8 miles^3. (A) If the average density of…

A: In general. density can be defined as mass of a substance per unit volume of that substance.

Q: How can the number 642,000 g be written to indicate that there are 4 significant figures?

A: The number 642000 has three significant figures.

Q: Calculate the density mercury if 1.00x 10 squared g occupies a volume of 7.36cm cubed

A:

Q: A piece of silver metal weighing 194.3 gramas is placed in a graduated cylinder containing 242.0 mL…

A: Given;

Q: The following values are part of a set of experimental data: 34.7cm and 19.65mm. How many…

A:

Q: Estimate the volume of the object to the correct number of significant figures:

A: In liquids like water, a concave meniscus appears and the lower part of the meniscus is read for…

Q: The density of methanol, a colorless organic liquid used as solvent, is 0.7918 g/mL. Calculate the…

A: Given density = 0.7918 g/mL.

Q: How many significant figures are in the number 9.540x10*7?

A: Significant figures in 9.540*10^-7  = 4(four significant figures are there) . 0.00000009540 =…

Q: How many pm are there in  4.60x10 m? Enter the appropriate exponent as a number and not a word.

A:

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

A:

Q: How many significant figures are in the number 0.0009781?

A: Step : 1               Find the significant figures.

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: Lithium is the least dense metal known (density: 0.53 g/cm3). What is the volume occupied by 1.20…

A: Given : Density of Li = 0.53 g/cm3  And mass of Li = 1.20 X 103 g

Q: The density of titanium is 4.51 g/cm^3. What is the volume (in cubic inches) of 3.5 lb of titanium?

A: For the calculation of the volume of titanium we have to use the following formula:…

Q: How many significant figures are in the number 6.455x108?

A: Significant figures is termed as the total number of digit in a number including the last digit wose…

Q: A cape is designed for Lady Gaga's covered with 4450 sequins. If a sequin has a volume of 0.0275…

A:

Q: A sample of granite has a density of 174.8 lb/ft3. If the density of water is 62.4 lb/ft3, what is…

A: Given : The density of granite=174.8 lb/ft3 The  density of water is 62.4 lb/ft3 Specific gravity=?

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

A: The volume of the element is = 7.8×10-31 m3 This volume can be converted into a cubic nanometer by…

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

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.