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Chemistry

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Zora Daniel

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4y ago
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Cards in this guide (13)
Which metal has the highest specific heat capacity

Lithium is the metal that has the highest specific heat capacity.

Is plastic a thermal conductor or insulator

It is a thermal insulator

An increase in temperature will cause the rate of a chemical reaction to

increased temperture causes rate or reaction to increase.

Which equation is an expression of the rate law

Rate = k[A]m[B]n

What does the rate law use to determine the rate of a reaction

The rate of a reaction is calculated using the concentrations of reactants.

Which of the following best describes an Arrhenius acid-base reaction

Acid + base salt + water

How many hydrogen ions in a solution with a pH of 4.0

pH = -log[H+] Hence [H+] = 10^-pH = 10^-4 = 1 x 10^-4 mole of H+

Now 1 mole of H+ = 6.022 x 10^23. Hence 1 x 10^-4mole = 6.022 x 10^19 H+ ions.

What information does the rate constant give from the rate law

It tells how much the reaction rate is affected by concentrations.

What is true of a Brnsted Lowry base

Bornsted Lowry base is an acid base reaction theory. The ideal came from Johannes Nicolaus Bronsted and Thomas Martin Lowry in 1923. The theory is that acid can lose or donate a proton.

Which of the following would have the best thermal conductor properties

A cup made of metal. (Apex)

A concentration unit expressed in units of moles of solute per kilogram of solvent

This is called molality.

What equation shows how rate depends on concentrations of reactions

The equation is called the rate law equation. For the reaction aA+bB =>cC+dD the rate law would be rate = k[A]^m[B]^n where k is the rate constant and m and n are the "order" with respect to each reactant. m and n must be determined experimentally and may or may not be the same as the coefficients a and b.

What does it mean if Keq is less than 1

Reactants are favored over products in the reaction.

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