Answer the calculation below with the correct number of significant figures. 87.4/1.902-1.43 A. 190 B. 185 C. 185.2 D. 200

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: Rules for determining the significant figures are as follows: A) When doing addition or subtraction…

Q: 1. When expressed as 7.5x10^4, only the significant figures of are to.be considered. (1 point) O 7.5…

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Q: The mass of unknown metal cylinder A is 8.56 g that occupies 3.2 cm3. a. Calculate the density in…

A: Density of a substance is given by the ratio of mass of the substance to that of the volume.

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Q: At 25 °C, 10.0181 g of an unknown liquid was found to have a volume of 6.75 mL. 1. Calculate the…

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Q: . Sunnose a ruler is used to measure the length of an object as shown in the figure belenä 5. 7. 10…

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Q: A solid metal sphere has a volume of 4.2ft^3 the mass of the sphere is 155 lb find the density of…

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Q: a particular stone with a mass of 56.78 g was put into a graduated cylinder containing 11.0mL. The…

A: Density is defined mass per volume and it is denoted by D. D=mV Here m denotes mass and V denotes…

Q: Round off each number to the indicated number of significant figures (sf ): (a) 0.0003554 (to 2 sf…

A: The given number has to be rounded off to indicated number of significant figures.

Q: Round off or add zeros to calculate answers to give a final answer with three significant figure…

A: The rules for significant figures are: 1)  Zeros between two non-zero digits ARE significant. 2) All…

Q: Round 2.03000 to 4 significant figures

A: The number given is 2.03000. This number has 6 significant figures.

Q: The number 3332.914 rounded to 3 significant figures is

A: Answer is given below

Q: What is the volume of an object of mass 20.00 g and density 2.0 g/mL? 1._______ / 2._______ =…

A: Given the mass of the object, m = 20.00 g  density of the object, d = 2.0 g/mL

Q: A supposedly gold nugget displaces 14.4 mL of water and has a mass of 276 g. Part A Calculate the…

A: Density basically expresses direct proportional relation with mass whereas inversely proportional…

Q: Solve the following for m. Express your answer as an integer: a) −17 + -120/m = 23 (Show your work…

A: We have a) −17 + -120/m = 23 b)112.50 mg - 22.3841 mg + 0.327 cg We know that 1 cg =10 mg or 1 mg =…

Q: Use prefix multipliers to express each measurement withoutany exponents.a. 38.8 * 105g b. 55.2 *…

A: The given values are in grams, second, meters, and liters respectively which are converted without…

Q: Which laboratory measurement is expressed to the correct number of significant figures? O 9.5011 °C…

A: The given value of temperature on the thermometer is 9.5011°C, time is 60 on tenths of the second…

Q: If 1 pound = 2.205kg, how many grams is in 4.95 pounds? Report your answers to 2 decimal places…

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Q: A plastic cube has a length of 1.35 cm on each side. If the cube has a mass of 2.60 g : a) What is…

A: Given: length of cube is 1.35 cm. Mass of cube is 2.60 g.

Q: e ruler is in centimeters (cm). Record the length of the rod below taking into count any uncertainty…

A: Centimeter is unit of measuring length. Meter, decimeter and millimeter are other units of length.

Q: How should he record his answer, to the correct number of significant figures?

A: In multiplication rounding off the answer to the least number of significant digits given in the…

Q: Rewrite this measurement with a simpler unit, if possible. g* mL·g 1.3 2 g*-mL•mL•s Note: If you can…

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Q: 1(a) Convert the number 0.0000735 to scientific notation. (b) Round off the number 24.15725 to the…

A: Applying concept of scientific notation and significant figures.

Q: An object with a Density of 1.6 g/mL, has a mass if 0.2 LB find the volume in mL

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Q: A  person is 6 feet 4 inches tall; how many cm tall are they?  2.54 cm = 1 in. Report your answer…

A: The conversion factor for feet and inches is:1 feet = 12 inches Hence, 6 feet =12 X 6 inches…

Q: me symbol of a simple unprefixed SI unit has been left off of each measurement in the table below.…

A: SI unit for length, height , width , breath is meter ( m ). SI unit for mass is kilogram ( Kg). SI…

Q: Solve the following, round to the correct number of the significant figures and chose the correct…

A: Rule-  1. Count the number of decimal places of all the number. 2. You answer should contain not…

Q: Name: Date: Class period: Unit: Introduction to Chemistry "Significant Figures in Calculations" - WS…

A: Hello. Since there are multiple questions and each question has more than three sub-parts, the first…

Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 10° kg. Use this…

A: 1 mole = avogadro number of particles = 6.022 x 1023 particles    Given that  1 rain drop = 50 mg…

Q: 2.66 Perform each calculation to the correct number of significant figures. a) ( b) (569.99- 233.1)…

A: Significant figures are any non zero digit.

Q: Perform each calculation to the correct number of significant figures. a)( D) (569.99 - 233.1) + 5.3

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Q: A piece of metal with a mass of 13.2 g was dropped into a graduate cylinder containing 17.00 mL of…

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Q: A cube of plastic 1.3x10^-5 km on a side has a mass of 2.1g. What is it’s density in g/cm^3

A: Concept introduction: Density of substance is equal to the ratio of mass to volume. Formula: Unit…

Q: 1. 0.006 lb/s to g/s 2. 1001 ft to cm 3. 27.78g to lb mass

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A 50 ml beaker has a mass of 42.503g. Make the following conversions mass in kg , lbs, tons, dg

A: Given: mass of the beaker = 42.503 g To Make the following conversions a) Mass in g into mass in kg…

Q: Find t. 5 m 4 m 10 m D Write your answer as a whole number or a decimal. Do not round. t = meters

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Q: A student experimentally determines the density of a metal cube. The edge length of the cube is…

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Q: density of the nugget

A: Density basically expresses direct proportional relation with mass whereas inversely proportional…

Q: If the mass of an empty 9.7 ml pycometer is 10.1 nd the mass of the same pycometer with an unknown…

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Q: Osmium (Os) is the densest element known (density = 22.57 g/cm3). Calculate the mass in pounds and…

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Q: alüminum atom has a mass of 4.48 × 10 g and a small airplane has a mass of 5000. kg. e this…

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Q: Make the following conversions. Report answer to the proper number of significant figures. 1.25 in…

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Q: Round 19,320.411 to 3 significant figures. Please express in decimal form, not scientific notation.

A: The rules for the significant figure are: Numbers other than zero with a decimal point are…

Q: 2. Complete the blanks in each row, as in the first: a) Find and underscore the last significant…

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Q: Use the first menu to select the type of measurement represented by the unit. Use the second menu to…

A: Significant figure are used in calculation and to  measure and contribute more accuracy in…

Q: Round each number as directed: a. 429.894 – tenth's place c. 14300. – hundred's place b. 344321 –…

A: Rounding off the given digits: a) Rounding off 429.894 to tenth's place = 429.9 Here we have rounded…

Q: What is the sum of 7.12 -  4.35 - 1.1 Be sure to use the correct number of significant figures

A: 7.12 - 4.35 - 1.1

Q: A graduated cylinder has a height of 7.12 inches. Make the following conversion Height in km

A: It is given that the height of a cylinder is 7.12 inches. The height can be converted to km by using…

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.