Ch.1 - Chemical Tools: Experimentation & Measurement

McMurry8th EditionChemistryISBN: 9781292336145Non è quello che usi tu?Cambia libro di testo

McMurry 8th Edition

Ch.1 - Chemical Tools: Experimentation & Measurement

Problema 111b

Capitolo 1, Problema 111b

Answer the following questions. (b) There are exactly 640 acres in 1 square mile. How many square meters are in 1 acre?

Guida verificata passo dopo passo

Start by identifying the conversion factors needed: 1 square mile = 640 acres and 1 mile = 1609.34 meters.

Convert 1 square mile to square meters using the conversion factor: (1 mile)^2 = (1609.34 meters)^2.

Calculate the total number of square meters in 1 square mile by squaring the conversion from miles to meters.

Divide the total number of square meters in 1 square mile by 640 to find the number of square meters in 1 acre.

Express the final result in terms of square meters per acre.

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Unit Conversion

Unit conversion is the process of converting a quantity expressed in one set of units to another set of units. In this case, we need to convert acres to square meters, which requires knowing the relationship between these two units. Understanding how to perform conversions is essential in chemistry and other sciences to ensure accurate measurements and calculations.

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Percorso guidato

01:56

Conversion Factors

Area Measurement

Area measurement refers to the quantification of a two-dimensional space, typically expressed in square units. An acre is a unit of area commonly used in land measurement, equivalent to 43,560 square feet. Knowing the area of an acre helps in converting it to other area units, such as square meters, which is the standard metric unit for area.

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Percorso guidato

02:52

Units of Radiation Measurement

Metric System

The metric system is an internationally recognized decimal-based system of measurement used in science and everyday life. It includes units such as meters for length and square meters for area. Understanding the metric system is crucial for performing conversions and calculations in chemistry, as it provides a consistent framework for measuring and comparing quantities.

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01:16

Metric Prefixes Usage

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Answer the following questions. (c) A certain type of wood has a density of 0.40 g/cm³. What is the mass of 1.0 cord of this wood in kg, where 1 cord is 128 cubic feet of wood?

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Answer the following questions. (a) An old rule of thumb in cooking says: 'A pint's a pound the world around.' What is the density in g/mL of a sub-stance for which 1 pt = 1 lb exactly?

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A bag of Hershey's Kisses contains the following information:

Serving size: 9 pieces = 41 g

Calories per serving: 230

Total fat per serving: 13 g

(a) The bag contains 2.0 lbs of Hershey's Kisses. How many Kisses are in the bag?

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Answer the following questions. (d) A particular sample of crude oil has a density of 0.85 g/mL. What is the mass of 1.00 barrel of this crude oil in kg, where a barrel of oil is exactly 42 gallons?

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When an irregularly shaped chunk of silicon weighing 8.763 g was placed in a graduated cylinder containing 25.00 mL of water, the water level in the cylinder rose to 28.76 mL. What is the density of silicon in g/cm3?

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Lignum vitae is a hard, durable, and extremely dense wood used to make ship bearings. A sphere of this wood with a diameter of 7.60 cm has a mass of 313 g. (a) What is the density of the lignum vitae sphere? (b) Will the sphere float or sink in water? (c) Will the sphere float or sink in chloroform? (The density of chloroform is 1.48 g/mL.)

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