Cracking the SAT Chemistry Subject Test

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Question Type C (1) N 2 (g) + 3H 2 (g) 2NH 3 (g), Keq (472°C) = 0.105 (2) H 2 (g) + I 2 (g) 2HI(g), Keq ( ...

If the reaction given above is at equilibrium, the result of a sudden increase in the concentration of ...

Summary Rate of reaction is the speed at which reactants are converted into products. Rate of reaction ...

the right. Adding products or removing reactants shifts it to the left. Adding heat to an endothermic reacti ...

Chapter 11 Acids and Bases In order to do well on the SAT Chemistry Subject Test, you’ll need to know a f ...

THE AUTOIONIZATION OF H 2 O This might surprise you, but a glass of water is not entirely compo ...

= 10−14 M^2 at 25°C Furthermore, at constant temperature, reg ...

exponent when it is written as a base ten number (in other words, 10 to some power)?” For example log 10^4 ...

ACIDS AND BASES Over the years, several different definitions for acids and bases have been ...

Most compounds behave either just as acids or just as bases no matter what other chemical species ar ...

H 2 SO 4 sulfuric acid (only the first H is strong) HClO 4 perchloric acid Strong Bases Group 1 hydroxides s ...

KOH(aq) → K+(aq) + OH−(aq) Second, realize that there is really no KOH(aq) in solution. It’s all diss ...

The reversible double-reaction arrow is used in weak acid-base dissociation reactions. Being able to ide ...

A couple of things about this last step: First of all, the reaction indicates that for every 1 ...

NH 3 (aq) + H 2 O(l) NH 4 +(aq) + OH−(aq) Second, write the equilibrium expression (use Kb(NH3)). Kb(NH3) = ...

x = 1 × 10−2.5 Fifth, don’t worry about the fractional exponent because it will disappear when you ...

Since all of these differ by more than 1 H+, they do NOT qualify as conjugate pairs. Now, the member of ...