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1. Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCl is 3.0 x 10-8 M.
2. How many mL of NaOH are added to reach the equivalence point?
3. What is the pH after 2.40 mL of NaOH are added?
4. What is the pH after 5.00 mL of NaOH are added?
5. What is the pH at the equivalence point?
A sample containing 3.00 mol of an ideal gas at 25C is expanded isothermally and reversibly from an initial volume if 6.0L to a final volume of 24.0L. Calculate deltaG and deltaA for this process.
Do these lambda maxs indicate an increase or a decrease in the energy of the light absorbed as the number of EN ligands bound to Cu(II) increases
In the gravimetric determination of Zn^2+, 2.2024 g sample was dissolved and made up to volume in a 100.0 mL flask. A 10.0 mL aliquot were precipitated by adding a soluble pyrophosphate salt and heating the precipitate to a solid Zn2P2O7 (304.728 ..
What is the maximum amount of CO2 (44.0095 g/mol) which could be formed from 16.42 g of CO (28.0101 g/mol) and 0.24 mol of O2 (31.9988 g/mol)? Answer in units of mol
Propose a step-by-step microscale extraction procedure that could be used to separate a mixture nitrobenzene, 4-methoxybenzoic acid, and benzylamine into the pure compounds using extraction technique.
How would you make a .500L of a single solution that was 0.00700 M NaCl and 0.143 M KCl? Be complete with your directions (like a recipe with amounts, glassware, etc.)
Give the structural formula of the lewis-acid base complex which consists of one mole of phenylmagnesium bromide and two moles of diethyl ether.
The procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is concentrated (19M ) NaOH solution. How many mL of water are needed to make 500mL of a 3.0M NaOH
If the system below is at equilibrium in a closed vessel and a small amount of nitrous acid is added, what would be expected to happen
Radio waves travel at the speed of light which is 3x10^8 m/s. how many kilometers will radio messages to outer space travel in one year
Solid aluminum metal and diatomic chlorine gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction.
.4550 g of rock containing douglasite is treated by AgNO3. it took 37.20 ml of 0.1000 M AgNO3 to precipitate all Cl- as AgCl. Calculate the % mass of the mineral in the sample
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