question archive Part A Classify each substance as a strong acid, strong base, weak acid, or weak base
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Part A Classify each substance as a strong acid, strong base, weak acid, or weak base. Drag the appropriate items to their respective bins NH3 HCOOH KOH CSOH CH3NH2 HF (CH3)2NH HI CH COOH HCIO Strong acids Weak acids Strong bases Weak bases reset
part A
STRONG ACIDS
HCl
H2SO4
HNO3
HI
HBr
HClO4
____________
WEAK ACIDS:
CH3COOH
HF
HCN
HNO2
HCOOH
__________________
STRONG BASES
LiOH
Ca(OH)2
KOH
NaOH
Ba(OH)2
CsOH
________________
WEAK BASE :
NH3
(CH3)2NH
CH3NH2
PART B
HNO3 + KOH --->H2O + KNO3
KNO3 (potassium nirate)
2HNO3 + Ca(OH)2 ---> 2H2O+ Ca(NO3)2
Ca(NO3)2 (Calcium nitrate)
2HCl + Ca(OH)2 ---> 2H2O + CaCl2
CaCl2 (Calcium Chloride)
HCl + KOH ---> H2O + KCl
KCl (Potassium Chloride)
part C
pH = -log[H3O+]
pH = 8.02
part D
pOH = -loh[OH-]
pOH = 2.14
pH + pOH = 14
pH = 11.86