Determine the number of significant figures in the following measurements: (a) 443 cm, (b) 15.03 g, (c) 0.0356 kg, (d) 3.000 × 10–7L, (e) 50 mL, (f) 0.9550 m.

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: The density of ethylene glycol, the principal ingredient in antifreeze is 1.11 g/cm3.  If you have…

A: For Ehtylene Glycol liquid,  Density = 1.11 g cm-3 Mass = 245 g Volume = ?

Q: Prepare a table in which the rows are: length, area, volume, mass, and time. Make two columns, one…

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

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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: The density of iron is 7.86 g/cm3. What is the volume in milliliters (mL) of an irregularly shaped…

A: • The values provided in the question are:-  i) Density of Iron, d = 7.86 g/cm3 ii) Mass of Iron, m…

Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Rules for significant figure All non zero integer are significant Exact number have unlimited…

Q: A bakery measured the mass of a whole cake as 0.870 kg. A customer bought one slice of the cake and…

A: Rule for Significant figures (SF) in mathematical operations:(1) Addition and Substraction round by…

Q: the old pharmaceutical system of measurements, masses were expressed in grains. There are 5.760 x103…

A: Given:  Mass of 5.760 x 103 grains = 1 lb  1 lb = 453.592 gm  Number of grains in aspirin = 5

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 density of lithium metal in g/cm3, if a cube measuring 0.82 cm x 1.45 cm x 1.25 cm has a…

A: Mass of a cube = 0.794 g  According to given values ,Let's assume :  Length of a cube = 0.82 cm…

Q: A room measures 10.0 ft by 11.0 ft. And is 9.0 ft high. What is its volume in liters

A: A cuboid is a shape with different length, breadth & height. The volume of cuboid can be…

Q: 2. The density of Zinc is 7.13 g/cm³. What is the volume of a sheet of zinc that is 45cm by 60cm in…

A: Given information,   Density of Zinc = 7.13 g/cm3   Area is 45 cm x 60 cm and thickness is 0.0155 cm

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

A: volume in cm3 of 1.8 cubic feet?

Q: What would the volume (in cm) of an aluminum cube be if the density is 2.70 g/cm3 and the mass is…

A: Density = Mass / Volume Mass in grams(g) Volume in cm3 Unit of Density = g/cm3

Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Significant figures of a number are  necessary to indicate the quantity of something. It is also…

Q: There are exactly 60 seconds in a minute, exactly 60 minutes in an hour, exactly 24 hours in a mean…

A: 60 smin ×60 min1 hour ×24 hour1 day ×365,24,daysolar year  =31556736 s/solar year

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: What is the volume of a box in cm3 if its dimensions are 9 inches x 7.7 inches x 10.1 inches?

A: Given: The dimensions of the box are 9 inches x 7.7 inches x 10.1 inches

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 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: 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: A new beeswax candle has a volume of 475 cubic centimeters. Given that the density of beeswax is…

A: Given :- volume of beeswax = 475 cm3              density of beeswax = 0.970 g/cm3  To be calculated…

Q: a sample of iron ore has a density of 7.87 g/mL. if it measures 7.0 cm x 1.93 cm x 5.15 cm, what is…

A: The question is based on dimensional analysis. we have been given dimensions of iron and its…

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

A:

Q: If a block of copper measures 2.00 cm x 4.00 cm x 5 cm and weighs 356 g, what is its density?

A: The mass per unit volume of a substance is known as the density of the substance. The density 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: I think I did a calculation wrong but I am having trouble understanding significant figures. In…

A: Significant figures: These are the digits of a number that are useful in terms of accuracy and…

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: For each of the following numbers, determine the number ofsignificant figures it contains, rewrite…

A: (a) 3.050 × 10–4 can be written without scientific notation as 3.050/104 =0.0003050 has four…

Q: When multiplying 602.4 m by 3.72 m, which value determines the number of significant figures in the…

A: There are some rules for assessing the count of significant figures in a number. For division and…

Q: A block metal has a volume of 13.4in^3 and weighs 5.22lb. What is its density in grams per cubic…

A:

Q: How many significant figures are there in 0.1010 mm?

A: The significant figures refer to particular digits in a number. According to the measurement rule,…

Q: If a sample of clay has a density of 1.7 g/cm3 and it takes up a volume of 0.43 cm3, what is its…

A:

Q: The speed of light is (2.998e8m/s) How far does light travel in 9.0μs? Set the math up. But don't do…

A: Given,Speed of light = 2.998 × 108 m/sTime = 9.0 μsFirstly, let us convert 9.0 μs to s using…

Q: The width, length, and height of a small box are 15.5, 27.3, and 5.4 cm, respectively. Calculate the…

A: Given information: Length = 27.3 cm Breadth = 15.5 cm Height = 5.4 cm

Q: What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to…

A: Since we know for a rectangular foil area = length × breadth  Here , Length = 43.9 cm…

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: How many cubic feet are there in a room measuring 6m x 10m x 3m?

A: Cubic feet is calculated by measuring the height,width and length.

Q: When subtracting 61.45 g from 242.6 g, which value determines the number of significant figures in…

A: Significant figures are the value of a number of digits that add accuracy to the value. There are…

Q: If a box measures 78.4 cm x 1.34 m x 654 mm, what is the volume of the box in cubic centimeters?

A:

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: the radius of a neon atom is 6.9 x 10 ^-2 nm, and its mass is 3.35 x 10^-17 micrograms. what is the…

A: 6.9 * 10-2 nm = 6.9 * 10-12  m  We know that formula of volume of sphere  = 4/3 πr3  As 1 meter =…

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: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: Length of the box,l  = 2.20 in Width of the box, b= 3.91 in Height of the box , h = 10.4 in + 1 in…

Q: The SI units of density are kg/m³ but g/cm³ is more commonly used. How many g/cm³ are in 1 kg/m³?

A: Density is the ratio of the mass of the substance with that of the volume occupied by the substance.…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.