If the ions Fe +2, C 2H 3O 2- , Ba 2+, and OH - are placed in a test tube, the precipitate formed is __________.
| A. |
Fe(OH)2 |
|
| B. |
Fe(C2H3O2)2 |
|
| C. |
Ba(OH)2 |
|
| D. |
Fe(OH)3 |
Consider the titration involving the equation: Ba(OH)2 + 2HNO3 -> Ba(NO3)2 + 2H 20 The equivalent point is reached when 19.65 mLof 0.200 M HNO 3 is titrated into 25.00 mL of the Ba(OH)2. Calculate the molarity of BalOH) 2. a. 0.0935 M b. 0.0894 M c. 0.0786 M d. 0.0900 M
Consider the titration of HC 2H 3O 2 with NaOH. If it requires 0.00376 mol of NaOH to reach the endpoint, and if we had originally placed 14.49 mL of HC 2H 3O 2in the Erlenmeyer flask to be analyzed, what is the molarity of the original HC 2H 3O 2 solution?
Calculate the number of milliliters of 0.440 M Ba(OH)2 required to precipitate all of the Fe3+ ions in 119 mL of 0.764 M FeCl3 solution as Fe(OH)3. The equation for the reaction is: 2FeCl3(aq) + 3Ba(OH)2(aq) —>2Fe(OH)3(s) + 3BaCl2(aq) ml Ba(OH)2
Calculate the number of milliliters of 0.433 M
Ba(OH)2 required to precipitate all of
the Fe3+ ions in 156
mL of 0.487 M
Fe2(SO4)3
solution as Fe(OH)3. The equation for
the reaction is:
Fe2(SO4)3(aq) +
3Ba(OH)2(aq) 2Fe(OH)3(s)
+ 3BaSO4(aq)
_______ mL Ba(OH)2
In the reaction of Fe 3O 4 with carbon to form carbon dioxide and iron Fe 3O 4 + 2 C → 2 CO 2 + 3 Fe , the number of moles of carbon required to convert 23 g of Fe 3O 4 to products is A 0.05 B 0.1 C 0.2 D 0.3 E 0.4
Calculate the number of milliliters of 0.766 M
Ba(OH)2 required to precipitate all of
the Cr3+ions in 151 mL
of 0.486 M CrBr3
solution as Cr(OH)3. The equation for
the reaction is:
2 CrBr3(aq) +
3 Ba(OH)2(aq)
2
Cr(OH)3(s) + 3
BaBr2(aq
You wish to prepare an HC 2H 3O 2 buffer with a pH of 5.26. If the pK a of is 4.74, what ratio of C 2H 3O 2⁻/HC 2H 3O 2 must you use? 0.32 2.8 0.50 0.10 3.3
DATA TABLE STEP 1 AgNO3 1,C,,2 STEP 3 Ba(NO3)2 SO - Decant white BaSO4 ppt (CONFIRMS SO2-) yellow Agl. AgCl ppt NH,OH yellow Agl. AgCl ppt RECYCLE Chemical Waste HNO blue litmus Decant white AgC ppt (CONFIRMS CT) yellow Agl.ppt (CONFIRMST) red spot 6. Refer to the Data Table to determine which anions (I-, Cl-, SO42-) are present and absent in an unknown solution given the following observations. • The unknown solution in test tube #1 plus AgNO3 gives a...
please help with equilibrium reaction and what happens to the OH
ions in the solution
PART ASSOCIATION/DISSOCIATION OF A PRECIPITATE Data Collection 1. Get a clean test tube and place -1 mL (20-25 drops) of NaOH solution in the tube. 2. Slowly add drops of CaCl, solution until you notice a precipitate form in the tube. 3. Write a net ionic reaction for the formation of the precipitate below as an equilib- rium reaction: -NaOH ans + CaClzrag NaCl +...
What are the predicted products from the following neutralization reaction? HC 2H 3O 2( aq) + Ca(OH) 2( aq) →