What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to the correct number of significant figures.

Q: A sheet of aluminum measures 48.5 cm by 29.5 cm. If the volume is 2.90 cm³ what is the thickness of…

A:

Q: What is the density of a 789 kg object that is 1.58 m³ in size? number unit

A: Given, Mass the object = 789 kg Volume of the object = 1.58 m3 Density of the object = ?

Q: What type of quantity (for example, length, volume, density) do the following units indicate? (a)…

A: Units: A fixed amount used as a standard of measurement. For example, for the measurement of mass,…

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

A:

Q: A chemist has a block of aluminum metal (density is 2.7 g/mL). The block weighs 1.1 g. What is the…

A:

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

A: Given: The speed of light in m/s is 299,792,458 m/ s.

Q: Calculate (2.075 x 0.585)/(8.42 x 0.0045) Correct the answer by rounding off the number to the…

A: Significant Numbers are those numbers or digits in the given number which are used in mathematical…

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: Consider the equation: (9 x 10^-38) x (9.00 x 10^3) x 35.3= Y  how many significant figures should Y…

A: The significant figures can be defined as the digits in the given number that carry some meaning and…

Q: Fill in the blanks with the correct answer: 1-The answer rounded to the correct number of…

A: Note:-     Since you have asked multiple question, we will solve the first question for you. If you…

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: What is the volume of 40.0 kg of gold, which has a density of 19.3 g/ml?

A:

Q: A meteor has a volume of 9235 ft3 , what is the mass in kg of the meteor if the density is 0.92…

A:

Q: A wooden object has a mass of 10.782 g and occupies a volume of 13.72 mL. What is the density of the…

A: For division: In any problem, the minimum number of significant figures in any number is used to…

Q: You add 6.2 g of iron to 23.00 mL of water and observe that the volume of iron and water together is…

A:

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: A student measures 49.2 mL of concentrated nitric acid, which has a density of 1.53 g/mL. Part A…

A: Density ( d ) :- Density is defined as the ratio of mass and volume of solution. Density(d) = mass…

Q: What is the volume of an object whose density is 9.8 g/mL and has a mass of 100 grams?

A:

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: The speed of light in a vacuum is 2.998*108 m/s. What is its speed in kilometers per hour (km/h)?

A: It is given that speed of light in vacuum is = 2.998×108 m/s

Q: What is the volume in cubic inches? A box measure 3.12 feet in length, 0.0455 inches in width and…

A: Given : Length = 3.12 feet  Width = 0.0455 in  And height = 7.87 in

Q: A cube of an unknown metal measures 0.375 cm on one side.  The mass of the cube is 0.474 g.  Which…

A: Given : length of metal cube = 0.375 cm  And mass of cube = 0.474 g

Q: Using significant figure rules, the answer of 213 miles / 4.2 hours is equal to which of the…

A: In Multiplication and Division, The LEAST number of significant figures in any number of the problem…

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: How can you tell what numbers are exact, and which are measured? For example, one mile, one meter,…

A: Exact numbers cannot be simplified and have an infinite number of significant figures. Measured…

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: In the former British monetary system, one pound consisted of four crowns, each crown was worth five…

A: One unit is converted into other by multiplicative factor .

Q: If the diameter of a cylinder is 5.76 inches and the height is 9.46 inches what is the volume of the…

A:

Q: If the Moon is 246,000 miles from Earth, what is the distance in kilometers? (Given: 1 mile = 1.61…

A: The conversion used to do this problem is shown below: 1mi=1.61 km

Q: Is 0.468 meters exact, or measured?

A: Exact numbers those which are obtained after counting and are well defined. These numbers are have…

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: Express the following numbers in fixed notation (e.g., 1.23 x 102- 123), and give the number of…

A: Given,  Express the following number in fixed notation and give number of significant figures in…

Q: When adding or subtracting measured quantities, what determines the number of significant figures in…

A: The result of an addition or subtraction should be reported to the same number of decimal places as…

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: The Hope diamond is the world's largest blue diamond ith a weight of 44.4 carats. A carat is defined…

A: In the given problem weight of gold is 44.4 carats. Weight of 1 carat gold = 2.0 ×102 mg To find :-…

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

A: Given numbers   Numbers Part(a) 1.52×10-2 Part(b) 7.78×10-8 Part(c) 1×10-6 Part(d)…

Q: The density of iron is 7.87 g/mL. What is the mass of a 3.00 cm x 3.00 cm x 2.00 cm block of iron?…

A: The given question is based on the concept of density. Density is defined as the ratio of mass of…

Q: An object has a volume of 4.3 x 103  cm3,  and a density of 13.27 g/cm3.  WHAT IS  THE MASS OF THE…

A: The volume of the object is given as 4.3 x 103 cm3 and the density is given as 13.27 g/cm3. The mass…

Q: A 2.83 g piece of zinc (density = 7.14 g/mL) is added to a graduated cylinder that contains 12.13 mL…

A: According to the question, the graduated cylinder is filled with 12.13 mL of water. A piece of zinc…

Q: (2.241 mm )(2.8 mm ) Complete the operation and express the answer with the appropriate number of…

A: The operation expressed and the appropriate number of significant figures:Unit same for both values…

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: If the density of baking soda is 2.1 g/mL, how many grams of baking soda are present in 5.0 mL (the…

A: the product must contain 2 significant figure as bot of the multiplicand have 2 significant figure

Q: what is the mass in miligrams of 567 ml of mercury? The density of mercury is 13.6 g/mL

A: Given: The volume of mercury= 567 mL Density of mercury = 13.6 g/mL Mass of mercury (in mg)=?…

Q: What is the volume (in cm3) of a 36.7 g piece of metal with a density of 6.95 g/cm3?

A: Given : Mass of metal = 36.7 g density of metal = 6.95 g/cm3

Q: If it is found that 5.00 mL of a sample has a mass of 6.083 g, what is the density of the sample in…

A:

Q: Rolls of foil are 304 mm wide and 0.014 mm thick. (The density of foil is 2.7 g/cm3 .)What maximum…

A: The density of a substance is equal to the ratio of its mass and volume. In general, the density of…

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.