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Chapter 1: Problem 6

Give an example of a homogeneous mixture and an example of a heterogeneous mixture.

Short Answer

Expert verified
An example of a homogeneous mixture is air, and an example of a heterogeneous mixture is cereals.

Step by step solution

01

Understand Homogeneous Mixtures

A homogeneous mixture is a type of mixture where the components are uniformly distributed. The composition is the same throughout and you cannot distinguish between different components by simple observation.
02

Example of Homogeneous Mixture

An example of a homogeneous mixture is air. It is a mixture of gases like nitrogen, oxygen, carbon dioxide and others but it looks uniform to the naked eye.
03

Understand Heterogeneous Mixtures

A heterogeneous mixture is a type of mixture where the components are not uniformly distributed. The composition varies from one region to another and individual components can often be observed.
04

Example of Heterogeneous Mixture

An example of a heterogeneous mixture is a bowl of cereals. You can see the different components of the mixture like flakes, dried fruits and nuts.

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Most popular questions from this chapter

A pycnometer is a device for measuring the density of liquids. It is a glass flask with a close-fitting ground glass stopper having a capillary hole through it. (a) The volume of the pycnometer is determined by using distilled water at \(20^{\circ} \mathrm{C}\) with a known density of \(0.99820 \mathrm{~g} / \mathrm{mL}\). First, the water is filled to the rim. With the stopper in place, the fine hole allows the excess liquid to escape. The pycnometer is then carefully dried with filter paper. Given that the masses of the empty pycnometer and the same one filled with water are \(32.0764 \mathrm{~g}\) and \(43.1195 \mathrm{~g},\) respectively, calculate the volume of the pycnometer. (b) If the mass of the pycnometer filled with ethanol at \(20^{\circ} \mathrm{C}\) is \(40.8051 \mathrm{~g},\) calculate the density of ethanol. (c) Pycnometers can also be used to measure the density of solids. First, small zinc granules weighing \(22.8476 \mathrm{~g}\) are placed in the pycnometer, which is then filled with water. If the combined mass of the pycnometer plus the zinc granules and water is \(62.7728 \mathrm{~g}\). what is the density of zinc?

A jogger runs a mile in \(8.92 \mathrm{~min}\). Calculate the (c) \(\mathrm{km} / \mathrm{h} .(1 \mathrm{mi}=1609 \mathrm{~m} ;\) speed in (a) in/s, (b) \(\mathrm{m} / \mathrm{min}\) 1 in \(=2.54 \mathrm{~cm} .)\)

An aluminum cylinder is \(10.0 \mathrm{~cm}\) in length and has a radius of \(0.25 \mathrm{~cm}\). If the mass of a single Al atom is \(4.48 \times 10^{-23} \mathrm{~g},\) calculate the number of \(\mathrm{Al}\) atoms present in the cylinder. The density of aluminum is $2.70 \mathrm{~g} / \mathrm{cm}^{3}.

The density of methanol, a colorless organic liquid used as solvent, is \(0.7918 \mathrm{~g} / \mathrm{mL}\). Calculate the mass of \(89.9 \mathrm{~mL}\) of the liquid.

The average speed of helium at \(25^{\circ} \mathrm{C}\) is \(1255 \mathrm{~m} / \mathrm{s}\) Convert this speed to miles per hour (mph).
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