Acids and Bases - Test Test Answers

Which description correctly characterizes the acidity or basicity of a solution?

Consider the reaction. NH sub 4 raised to the plus plus cap h power sub 2 cap o rightarrow NH sub 3 plus cap h sub 3 cap o raised to the plus power Which is an acid-conjugate base pair?

Which of these refers to the strength of an acid?

What type of substance reacts with limestone open paren CaCO sub 3 close paren and produces carbon dioxide gas?

Which equation represents the correct net ionic equation for the reaction between Ca(OH)_2 and cap h sub 2 SO sub 4 ?

A salt is best described as a compound that is formed from the reaction between

Which pair of substances would most likely result in the production of a gas when reacting with an acid?

Which of these substances is an Arrhenius acid?

What is the definition of a Lewis base?

A solution of ammonia has a pH of 11 point 8 What is the concentration of OH raised to the negative power ions in the solution? Useful formulas include open bracket cap h sub 3 cap o raised to the plus power close bracket is equal to 10 raised to the negative pH power , open bracket OH raised to the negative power close bracket is equal to 10 raised to the negative pOH power , pH plus pOH is equal to 14 and open bracket cap h sub 3 cap o raised to the plus power close bracket times open bracket OH raised to the negative power close bracket is equal to 10 to the negative 14 power

A chemist lectures about this definition for acids and bases. The acid-base behavior is analyzed in terms of how electrons are transferred between compounds rather than in terms of how hydrogen ions are transferred. What is the chemist defining?

Which of these is the correctly balanced chemical equation for the reaction of Ca OH sub 2 and HNO sub 3 ?

The table lists some acids and bases. Strong acids Weak acids Weak bases Strong bases HBr CH sub 3 COOH NH sub 3 NaOH HNO sub 3 HCOOH NH sub 4 OH KOH cap h sub 2 SO sub 4 Ca OH sub 2 Which reaction yields a salt that has a pH is less than 7 ?

Lewis acids and bases are most closely associated with which process?

A strong acid, HA , is added to water. Which statement about the solution is true?

What does it mean for a strong base to be in equilibrium?

An unknown substance turns blue litmus paper to red. Which additional test could be used to confirm the substance’s identity?

Consider this reaction. Na raised to the plus plus cap c power sub 2 cap h sub 3 cap o sub 2 raised to the negative aq power plus cap h raised to the plus plus Cl raised to the negative right arrow cap n raised to the plus plus Cl raised to the negative plus HC power power sub 2 cap h sub 3 cap o sub 2 power power Which is the net ionic equation for the reaction?

The pH of a solution is 2 point 0 Which statement is correct? Useful formulas include open bracket cap h sub 3 cap o raised to the plus power close bracket is equal to 10 raised to the negative pH power , open bracket OH raised to the negative power close bracket is equal to 10 raised to the negative pOH power , pH plus pOH is equal to 14 and open bracket cap h sub 3 cap o raised to the plus power close bracket times open bracket OH raised to the negative power close bracket is equal to 10 to the negative 14 power

Which of these correctly defines the pOH of a solution?

A solution of HCl has open bracket cap h raised to the plus power close bracket is equal to 0 point 0 1 cap m What is the pH of this solution? Use pH is equal to negative log times open bracket cap h sub 3 cap o raised to the plus power close bracket

Soaps feel slippery on our hands because they dissolve the oil on our skin, decreasing friction.This is because soap contains

The cap k sub A of an acid is 1 point 3 times 10 to the negative 7 power Based on the cap k sub A and its relationship with cap k sub w sub 1 what is the value of cap k sub b ? Use cap k sub A cap k sub b is equal to cap k sub w

Look at the reaction. cap h sub 2 SO sub 4 A q plus Ca OH sub 2 A q rightarrow CaSO sub 4 times A q plus 2 cap h sub 2 cap o l Which substance is the base in the reaction?

HCl rightarrow Cl raised to the negative plus cap h raised to the plus power power Which statement best explains what is taking place?