Color Of Uni Lab Report
Chemistry 12 lab 20-D
Chemistry 12 Joanna Bragiel TA Solution | Colour of Uni. Indicator | pH | Type of hydrolysis | NaCH3COO | Blue- green | 9 | Anionic | NaCl | Green | 8 | Neither | (NH4)Cl | Green- yellow | 7 | Neither | (NH4)2SO4 | Green- Yellow | 7 | Neither | AlCl3 | Red-orange | 3 | Cationic | Ca(NO3)2 | Murky green | 7 | Neither | Fe2(SO4)3 | Red | 2.5 | Cationic | Na2CO3 | Dark blue | 9.5 | Anionic | Na3PO4 | Orange-red | 3 | Cationic | K2SO4 | Green | 7 | Neither | KBr | Green | 8 | Anionic | (NH4)2C2O4 | Green | 8 | Anionic | NH4CH3COO | Blue green | 9 | Anionic | (NH4)2CO3 | Blue green | 9 | Anionic |
Solution | Color of Univ Indicator | pH | Type of reaction | K2HPO4 | Orange yellow | 6 | Further ionization | KH2PO4 | Blue green | 9 | Anionic hydrolysis | …show more content…
a. NaOH + CH3COOH NaCH3COO + H2O
CH3COO-+ H2O CH3COOH + OH-
b. NaOH + HCl NaCl + H2O
c. NH3 + HCl H20 + NaCl
d. (NH3)2 + HSO4 (NH4)2SO4
e.Al(H20)5(OH) + HCl3 AlCl3 + 6H20
Al(H2O)6 + H20 Al(H2O)5(OH) + H3O
f. CaOH + HNO3 Ca(NO3)2 + H2O
2. NH4+ + H2O double arrow NH3 + H2O Ka = …
SO4 + H2O double arrow HSO4 + OH Kb = calculate 8.3 x 10^-13
Ka> Kb acidic solution 3. USE TABLE 2
K2HPO4
HPO4 + H2O double arrow H2PO4 + OH
HPO4 + H2O PO4 + H3O 4. Take equations from #3, write the Ka and Kb
Ka for HPO4 = 4.2 x 10^-13
Kb for HPO4 = 1.6 x 10^-7
Follow-Up Questions: 1. KNO3 will keep plants happy in soil due to its ability neutralize the soil. 2. Trisodium phosphate (TSP), available at most hardware stores in white powder form, is a cleaning agent and degreaser that is a base, making it a great for clean up. Solutions of it dissolved in water have an alkaline pH. 3. The purpose of having the Ca(H2PO4)2 in the baking powder, in addition to the NaHCO3 is so that when the two are together, and the H2PO4- ion is activated, it reacts with the NaHCO3 to produce the
Chemistry 12 Joanna Bragiel TA Solution | Colour of Uni. Indicator | pH | Type of hydrolysis | NaCH3COO | Blue- green | 9 | Anionic | NaCl | Green | 8 | Neither | (NH4)Cl | Green- yellow | 7 | Neither | (NH4)2SO4 | Green- Yellow | 7 | Neither | AlCl3 | Red-orange | 3 | Cationic | Ca(NO3)2 | Murky green | 7 | Neither | Fe2(SO4)3 | Red | 2.5 | Cationic | Na2CO3 | Dark blue | 9.5 | Anionic | Na3PO4 | Orange-red | 3 | Cationic | K2SO4 | Green | 7 | Neither | KBr | Green | 8 | Anionic | (NH4)2C2O4 | Green | 8 | Anionic | NH4CH3COO | Blue green | 9 | Anionic | (NH4)2CO3 | Blue green | 9 | Anionic |
Solution | Color of Univ Indicator | pH | Type of reaction | K2HPO4 | Orange yellow | 6 | Further ionization | KH2PO4 | Blue green | 9 | Anionic hydrolysis | …show more content…
a. NaOH + CH3COOH NaCH3COO + H2O
CH3COO-+ H2O CH3COOH + OH-
b. NaOH + HCl NaCl + H2O
c. NH3 + HCl H20 + NaCl
d. (NH3)2 + HSO4 (NH4)2SO4
e.Al(H20)5(OH) + HCl3 AlCl3 + 6H20
Al(H2O)6 + H20 Al(H2O)5(OH) + H3O
f. CaOH + HNO3 Ca(NO3)2 + H2O
2. NH4+ + H2O double arrow NH3 + H2O Ka = …
SO4 + H2O double arrow HSO4 + OH Kb = calculate 8.3 x 10^-13
Ka> Kb acidic solution 3. USE TABLE 2
K2HPO4
HPO4 + H2O double arrow H2PO4 + OH
HPO4 + H2O PO4 + H3O 4. Take equations from #3, write the Ka and Kb
Ka for HPO4 = 4.2 x 10^-13
Kb for HPO4 = 1.6 x 10^-7
Follow-Up Questions: 1. KNO3 will keep plants happy in soil due to its ability neutralize the soil. 2. Trisodium phosphate (TSP), available at most hardware stores in white powder form, is a cleaning agent and degreaser that is a base, making it a great for clean up. Solutions of it dissolved in water have an alkaline pH. 3. The purpose of having the Ca(H2PO4)2 in the baking powder, in addition to the NaHCO3 is so that when the two are together, and the H2PO4- ion is activated, it reacts with the NaHCO3 to produce the