The volume of 0.01 mol dm-3 K2 Cr2 O7 (cm3 ) required to react completely with 25.00 cm3 of 0.02mol dm-3 of FeI2 aqueous solution in acidic medium is,
(1)10.00 (2) 8.33 (3) 16.67 (4) 20.00 (5) 25.00
Pls explain the answer.
The volume of 0.01 mol dm-3 K2 Cr2 O7 (cm3 ) required to react completely with...
Fall 10.PUI How many moles of base were required to react completely with the acid in this reaction? mol Ca(OH)2 Part 2 (0.7 point) See Hint How many moles of HCl were present in the original 25.00 mL of acid? mol HCI Part 3 (0.7 point) What is the molarity of the original HCl solution? Choose one: O 0.0716 M O 0.179 M O 0.286 M O 1.79x10-4 M O 0.424 M Ca(OH)2(aq) + 2HCl(aq) — CaCl, (aq) +H20(1) An...
3-What volume (in mL) of 0.125 M AgNO3 is required to react completely with 35.31 mL of 0.225 M Na3 PO4? The balanced reaction is given below: 3 AgNO3(aq) + Nas PO4(aq) —>Ag3SO4(6)+ 3 NaNO3(aq) 4-What volume (in mL) of 0.550 M HCl is required to react completely with 4.72 g of sodium hydrogen carbonate? NaHCO3(s)+ HCl aq) —>NaCl(aq) + CO2(g)+ H2O) 5-Determine the volume of O2 (at STP) formed when 30.0 g of KCIO3 decomposes according to the following...
10.0 g of alloy containing only Fe, Cr and Ni when heated with dil. HNO3 dissolved to give Fe3+, Cr3+ and Ni2+ respectively. The resulting solution was diluted to a total volume of 250.00 cm3 by adding distilled water. 25.00cm3 of the diluted solution was treated with excess NaOH and H2 O2 . The obtained precipitate P was fltered and yellow colour fltrate Q was acidifed with dil. H2 SO4 acid, and titrated with 1.0mol dm-3 Fe2+ solution. The volume...
See2354 07 Question (3 points) Watch the Chem Tour animation below on acid-base titrations. Then, answer the questions about the following reaction: Ca(OH)2(aq) +2HCl(aq) +CaCl(aq) + H20(1) An aqueous solution of CaOH) with a concentration of 0.167 Mwas used to titrate 25.00 mL of aqueous HCI. 14.43 mL of the CaOH) was required to reach the endpoint of the titration ACID-BASE TITRATIONS Introduction A titration is the sequential addition of reactant to a solution containing other reactants. In an acid-base...
3. What volume of 0.025 M NaOH will be required to reach the endpoint in a titration with 25.00 ml of 0.10 M HCI? Show your work with units and correct significant figures. Circle your answer. 4. Calculate the molarity of a sodium hydroxide solution if 25.00 mL 0.100 M maleic acid requires 22.10 ml of NaOH to reach the endpoint. Show your work with units and correct significant figures. Circle your answer. 5. The following data were collected in...
3. If 15.0 mL of 0.125 M phosphoric acid is titrated with 0.100 M NaOH, what volume of the titrant (in mL) must be added to completely neutralize the acid? Show all of your work (including the chemical equation). (1 point) Post-lab Questions: Experiment #9: Acid-Base Titrations Student Learning Objectives : Students will gain practice with the accurate preparation of solutions. Students will perform acid-base titrations and prepare titration curves. Students will identify strong and weak acids by the shapes...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...