WorksheetspH
Total questions: 18
Worksheet time: 10mins
Each time you change a number on the scale you change by a factor of 10
– pH of 3 is 10 times less acidic as pH of 2 (3-2 =1 and hence 10 less)
– pH of 1 is 100 times more acidic as pH 3 (1-3 =-2 hence 100 more)
Substance X
pH 3
Substance Y
pH 2
Substance X is _____ times ___________________ than substance Y
100 more acidic
100 less acidic
10 more acidic
10 less acidic
Each time you change a number on the scale you change by a factor of 10
– pH of 3 is 10 times less acidic as pH of 2 (3-2 =1 and hence 10 less)
– pH of 1 is 100 times more acidic as pH 3 (1-3 =-2 hence 100 more)
Substance Z
pH 1
Substance W
pH 4
Substance Z is _____ times ___________________ than substance W
100 less scidic
100 more acidic
1000 more acidic
1000 less acidic
Each time you change a number on the scale you change by a factor of 10
– pH of 3 is 10 times less acidic as pH of 2 (3-2 =1 and hence 10 less)
– pH of 1 is 100 times more acidic as pH 3 (1-3 =-2 hence 100 more)
Substance Y
pH 2
Substance W
pH 4
Substance Y is _____ times ___________________ than substance W
1000 more acidic
100 more acidic
100 less acidic
10 less acidic
Each time you change a number on the scale you change by a factor of 10
– pH of 3 is 10 times less acidic as pH of 2 (3-2 =1 and hence 10 less)
– pH of 1 is 100 times more acidic as pH 3 (1-3 =-2 hence 100 more)
Substance W
pH 4
Substance X
pH 3
Substance W is ____ times ___________________ than substance X
100 more acidic
1000 more acidic
100 less acidic
10 less acidic
Stronger the Acid more H+ ions it will have
Substance X
pH 3
Substance W
pH 4
Substance Y
pH 2
Substance Z
pH 1
Which Substance will have the most H+ions
X
W
Y
Z
Stronger the Acid more H+ ions it will have
Substance X
pH 3
Substance W
pH 4
Substance Y
pH 2
Substance Z
pH 1
Which Substance will have the least H+ions
X
W
Y
Z
Each time you change a number on the scale you change by a factor of 10
– pH of 7 is 10 times less basic as pH of 8 (7-8 =-1 and hence 10 less)
– pH of 10 is 100 times more basic as pH 8 (1-3 =2 hence 100 more) Acids and bases are opposite lesser the pH (0-6) more acidic more the pH more basic (8-14)
Substance C
pH 7
Substance B
pH 8
Substance C is ____ times ___________________________ than B
100 more basic
10 more basic
10 less basic
100 less basic
Each time you change a number on the scale you change by a factor of 10
– pH of 7 is 10 times less basic as pH of 8 (7-8 =-1 and hence 10 less)
– pH of 10 is 100 times more basic as pH 8 (1-3 =2 hence 100 more) Acids and bases are opposite lesser the pH (0-6) more acidic more the pH more basic (8-14)
Substance A
pH 9
Substance B
pH 8
Substance A is ____ times ___________________________ than B
100 more basic
10 more basic
10 less basic
100 less basic
Stronger the base more OH- ions it will have
Substance A
pH 9
Substance B
pH 8
Substance C
pH 7
Which Substance will have the least OH-ions
A
B
C
None of the above
Stronger the base more OH- ions it will have
Substance A
pH 9
Substance B
pH 8
Substance C
pH 7
Which Substance will have the most OH-ions
A
B
C
None of the above
Which of the following is NOT a strong acid
Sulfuric acid
Hydrochloric acid
Perchloric acid
Hydrofluoric acid
Which of the following is NOT a strong base
Be(OH)2
CsOH
KOH
NaOH
